merge `dev` into `ppu`

40 files changed, 1256 insertions, 219 deletions

diff --git a/src/.gitignore b/src/.gitignore
index d8325cf..504b995 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -4,3 +4,4 @@ main.bin
 main
 main.exe
 static/
+*.bin
diff --git a/src/demo.c b/src/demo.c
index 019750a..95347cb 100644
--- a/src/demo.c
+++ b/src/demo.c
@@ -1,55 +1,154 @@
 #include <math.h>
 
 #include "demo.h"
+#include "input.h"
+#include "entity.h"
 #include "ppu/ppu.h"
 
-#define HH_DEMO_BALL_COUNT 5
-hh_s_ppu_loc_fam_entry g_hh_demo_balls[HH_DEMO_BALL_COUNT];
+#include "engine/maths.h"
+#include "engine/camera.h"
+#include "engine/entity.h"
+#include "engine/draw_screen.h"
+#include "engine/player_controller.h"
+#include "engine/sprite_controller.h"
 
+
+
+hh_s_entity_player g_hh_player_1 = {
+	.pos_x		 = 31000, // 0b0000 0001 0011 0110
+	.pos_y		 = 21000,
+	.radius		 = 8,
+	.speed		 = 100,
+	.direction_x = 1,
+	.rotation	 = 8,
+	.in_air		 = false,
+};
+
+void hh_player_movement();
+
+uint16_t g_hh_pos_x; // 0b0000 0001 0011 0110
+uint16_t g_hh_pos_y;
+uint8_t g_hh_left  = 0;
+uint8_t g_hh_right = 0;
+uint8_t g_hh_up	  = 0;
+uint8_t g_hh_down  = 0;
+uint8_t g_hh_pos_x_bit[2];
+uint8_t g_hh_pos_y_bit[2];
+uint8_t g_hh_data_send[3];
+int g_hh_tile_x;
+int g_hh_tile_y;
+
+typedef struct {
+	vec2 pos;
+	uint8_t idx;
+}hh_s_tiles;
+
+
+hh_entity hh_g_player, hh_g_player_new;
 void hh_demo_setup() {
-	// load sprites
-	hh_ppu_update_sprite(0, HH_DBG_SPRITE_BALL);
-	hh_ppu_update_sprite(1, HH_DBG_SPRITE_CHECKERBOARD);
-
-	// background pattern
-	hh_ppu_update_color(0, 1, (hh_ppu_rgb_color_t) {0x4, 0x4, 0x4});
-	for (unsigned i = 0; i < HH_PPU_BG_CANVAS_TILES_H * HH_PPU_BG_CANVAS_TILES_V; i++) {
-		hh_ppu_update_background(i, (hh_s_ppu_loc_bam_entry) {
-			.horizontal_flip = false,
-			.vertical_flip = false,
-			.palette_index = 0,
-			.tilemap_index = 1,
-		});
-	}
 
-	// cool colors
-	hh_ppu_update_color(1, 1, (hh_ppu_rgb_color_t) {0xf, 0x0, 0xf});
-	hh_ppu_update_color(2, 1, (hh_ppu_rgb_color_t) {0xf, 0xf, 0xf});
-	hh_ppu_update_color(3, 1, (hh_ppu_rgb_color_t) {0xf, 0x0, 0x0});
-	hh_ppu_update_color(4, 1, (hh_ppu_rgb_color_t) {0x0, 0xf, 0xf});
-	hh_ppu_update_color(5, 1, (hh_ppu_rgb_color_t) {0x0, 0x0, 0xf});
-
-	// balls
-	for (unsigned i = 0; i < HH_DEMO_BALL_COUNT; i++) {
-		g_hh_demo_balls[i].horizontal_flip = false;
-		g_hh_demo_balls[i].vertical_flip = false;
-		g_hh_demo_balls[i].palette_index = i+1;
-		g_hh_demo_balls[i].tilemap_index = 0;
-	}
+	hh_setup_palettes();
+	hh_setup_screen();
+
 }
 
 void hh_demo_loop(unsigned long frame) {
-	// set background pattern position
-	hh_ppu_update_aux((hh_s_ppu_loc_aux) {
-		.bg_shift_x = (frame / 2) % HH_PPU_SPRITE_WIDTH,
-		.bg_shift_y = (frame / 8) % HH_PPU_SPRITE_HEIGHT,
-		.fg_fetch = 0,
-		.sysreset = 0,
-	});
-
-	for (unsigned i = 0; i < HH_DEMO_BALL_COUNT; i++) {
-		g_hh_demo_balls[i].position_x = HH_PPU_SCREEN_WIDTH/2  - HH_PPU_SPRITE_WIDTH/2  + (int)(60 * (double)sin((1*(double)frame / 10) + (double)i * 12));
-		g_hh_demo_balls[i].position_y = HH_PPU_SCREEN_HEIGHT/2 - HH_PPU_SPRITE_HEIGHT/2 + (int)(30 * (double)sin((2*(double)frame / 10) + (double)i * 12));
-		hh_ppu_update_foreground(i, g_hh_demo_balls[i]);
+
+	// hh_player_movement();
+
+	hh_player_actions();
+
+}
+
+// void sendData(uint8_t address, uint16_t data) {
+// 	uint8_t bitData[3];
+// 	bitData[2] = data & 0xff;
+// 	bitData[1] = (data >> 8);
+// 	bitData[0] = address; // first byte is address
+//
+// 	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_RESET);
+// 	HAL_SPI_Transmit(&hspi1, bitData, 3, 100); //2*8 bit data
+// 	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_SET);
+// }
+
+void hh_player_movement() {
+	int8_t directionX = (-1 * g_hh_controller_p1.dpad_left) + (1 * g_hh_controller_p1.dpad_right); // -1 = L || 1 == R
+	int8_t directionY = (-1 * g_hh_controller_p1.dpad_up) + (1 * g_hh_controller_p1.dpad_down);	   // -1 = D || 1 == U
+
+	uint8_t i, j;
+	uint8_t rotation = 0; // 0-7
+
+	// rotation calc
+	for (i = -1; i < 2; i++) {
+		for (j = -1; j < 2; j++) {
+			if (directionX == i) {
+				if (directionY == j) {
+					if (i != 0 && j != 0) // dont update when player idle
+					{
+						g_hh_player_1.rotation = rotation;
+					}
+				}
+			}
+			rotation++;
+		}
+	}
+	// direction calc
+	if (directionX != 0) // update direction if player is not idle
+	{
+		g_hh_player_1.direction_x = directionX;
+	}
+	// collision map x-axis
+
+	// tile calc including radius and direction for background coliision
+
+	uint16_t tileColX;
+	uint16_t tileColY = (g_hh_player_1.pos_y / 100) / 16;
+	;
+
+	// remaining space between grid and exact
+	uint8_t modTileX;
+	uint8_t modTileY;
+
+	if (g_hh_player_1.in_air == false && directionX != 0) {
+		if (directionX == 1) {
+			tileColX = ((g_hh_player_1.pos_x / 100) + g_hh_player_1.radius) / 16;
+			modTileX = (g_hh_player_1.pos_x + (100 * g_hh_player_1.radius)) % 1600;
+		} else if (directionX == -1) {
+			tileColX = ((g_hh_player_1.pos_x / 100) - g_hh_player_1.radius) / 16;
+			modTileX = (g_hh_player_1.pos_x - (100 * g_hh_player_1.radius)) % 1600;
+		}
+
+		if (HH_DEMO_HITBOX_TILEMAP[tileColY][tileColX + directionX] != 1) {
+			g_hh_player_1.pos_x = g_hh_player_1.pos_x + (directionX * g_hh_player_1.speed); // NEW x set
+		}
+
+		else if (HH_DEMO_HITBOX_TILEMAP[tileColY][tileColX + directionX] == 1) {
+			if (modTileX < g_hh_player_1.speed) {
+				g_hh_player_1.pos_x = g_hh_player_1.pos_x + (directionX * modTileX); // NEW x set
+			} else {
+				g_hh_player_1.pos_x = g_hh_player_1.pos_x + (directionX * g_hh_player_1.speed); // NEW x set
+			}
+		}
+
+	} else // if in air different all borders have to be checked
+	{
+	}
+
+
+	if(directionY != 0)
+	{
+	//	g_hh_player_1.pos_y = g_hh_player_1.pos_y + (directionY * g_hh_player_1.speed * 2); // NEW x set
+	}
+	// collision map floor (y-axis) (falling)
+	//  if falling no jump press (implement)
+	/*
+	tileColY = (( g_hh_player_1.pos_y / 100) + g_hh_player_1.radius) / 16; //bottom of player box
+	modTileY = 1;
+	if(HH_DEMO_HITBOX_TILEMAP[tileColY+1][tileColX] != 1) //rework after jumping
+	{
+		g_hh_player_1.pos_y = g_hh_player_1.pos_y + 5 ;// NEW y set //makew var gravity
+		//playerStat = falling; //for later use of graphics/sound
 	}
+	*/
+	// else if(HH_DEMO_HITBOX_TILEMAP[])
 }
diff --git a/src/demo.h b/src/demo.h
index 89436b5..ddf8403 100644
--- a/src/demo.h
+++ b/src/demo.h
@@ -42,3 +42,38 @@ static const hh_s_ppu_loc_sprite HH_DBG_SPRITE_CHECKERBOARD = {
 	0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0,
 	0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0
 };
+
+static const uint8_t HH_DEMO_HITBOX_TILEMAP[30][40] =
+  {
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 },
+		  {1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1,1,1,1,1,1,1 }
+  };
+
diff --git a/src/ds.c b/src/ds.c
new file mode 100644
index 0000000..24ef58f
--- /dev/null
+++ b/src/ds.c
@@ -0,0 +1,15 @@
+#include "demo.h"
+#include "main.h"
+#include "ppu/ppu.h"
+
+void hh_setup() {
+	hh_ppu_init();
+
+	hh_demo_setup();
+}
+
+void hh_exit() {
+	g_hh_run = false;
+
+	hh_ppu_deinit();
+}
diff --git a/src/ds.mk b/src/ds.mk
index f70c1c9..57d1776 100644
--- a/src/ds.mk
+++ b/src/ds.mk
@@ -3,8 +3,13 @@ LD := gcc
 
 LFLAGS += -lSDL2
 
+ifeq ($(HOST),Msys)
+SHARED_FLAGS += -I/mingw64/include
+endif
+
 DESKTOP_SRCS += ppusim/sim.c \
 								ppusim/mem.c \
 								ppusim/pixel.c \
-								ppusim/work.c
-
+								ppusim/work.c \
+								ds.c \
+						    ppusim/input.c
diff --git a/src/engine/TODO/combat.h b/src/engine/TODO/combat.h
new file mode 100644
index 0000000..16c41f5
--- /dev/null
+++ b/src/engine/TODO/combat.h
@@ -0,0 +1,9 @@
+#include "hh_entity.h"
+
+
+// attacktypes:
+
+/// @brief basic attack
+/// @param dmg damage number
+/// @param target entity under attack (damage changes this hp value)
+void hh_attack_basic( int8_t dmg, hh_entity* target );
diff --git a/src/engine/camera.c b/src/engine/camera.c
new file mode 100644
index 0000000..e756bd4
--- /dev/null
+++ b/src/engine/camera.c
@@ -0,0 +1,34 @@
+#include "engine/camera.h"
+
+#include "ppu/consts.h"
+
+
+vec_cor hh_update_camera(vec_cen new, vec2 min, vec2 max){
+
+	//TODO: change floating point math to fix point math
+	//TODO: fix buggy y-axis ??
+
+	// new = vec_cen2cor(new,(vec2){.x=max.x/2,.y=max.y/2});
+	new = vec_cen2cor((vec2){.x=new.x+(HH_PPU_SPRITE_WIDTH/2),.y=(new.y+(HH_PPU_SPRITE_HEIGHT/2))*2},(vec2){.x=max.x/2,.y=max.y/2});
+	// new.x = new.x << HH_MATH_FIXED_POINT;
+	// new.y = new.y << HH_MATH_FIXED_POINT;
+	static vec_cor old;
+	// old.x = old.x << HH_MATH_FIXED_POINT;
+	// old.y = old.y << HH_MATH_FIXED_POINT;
+
+	// int16_t some = 0;
+	// some = some <<= HH_MATH_FIXED_POINT-1;
+
+	new.x = (int)((float)new.x*0.1f + (float)old.x*0.9f);
+	new.y = (int)((float)new.y*0.1f + (float)old.y*0.9f);
+
+	// old.x = old.x >> HH_MATH_FIXED_POINT;
+	// old.y = old.y >> HH_MATH_FIXED_POINT;
+
+
+	old.x = CLAMP(new.x,min.x,max.x);
+	old.y = CLAMP(new.y,min.y,max.y);
+
+	return old;
+}
+
diff --git a/src/engine/camera.h b/src/engine/camera.h
new file mode 100644
index 0000000..b3ffb52
--- /dev/null
+++ b/src/engine/camera.h
@@ -0,0 +1,6 @@
+#pragma once
+
+#include "engine/maths.h"
+
+vec_cor hh_update_camera(vec_cor new, vec2 min, vec2 max);
+
diff --git a/src/engine/draw_screen.c b/src/engine/draw_screen.c
new file mode 100644
index 0000000..c4f3389
--- /dev/null
+++ b/src/engine/draw_screen.c
@@ -0,0 +1,62 @@
+#include "engine/draw_screen.h"
+#include "engine/sprite_controller.h"
+
+uint8_t hh_world_to_tile(vec2 pos){
+	
+    FILE* level = fopen("../test/bin/level1_test.bin", "rb"); /* open binary file */
+    if (!level) { /* check if file opened successfully */
+        fprintf(stderr, "Error: Failed to open file.\n");
+        return 0;
+    }
+	int index = ((pos.y/16)*40 + pos.x/16);//TODO: remove magic number(s)
+	fseek(level, (index * sizeof(int)) + sizeof(int), SEEK_SET);
+	int tile;// = (int*)malloc(sizeof(int));
+   fread(&tile, sizeof(int), 1, level); // read 1 tile from binary
+
+	fclose(level);
+	// int val = tile;
+	// free(tile);
+	return tile;
+}
+
+
+// remeber old value to know which part to update.
+vec2 previousViewport = { .x = 0, .y = 0 };
+void hh_draw_screen(vec_cor viewport){
+	if (viewport.x == previousViewport.x && viewport.y == previousViewport.y) return;
+	
+	hh_ppu_update_aux((hh_s_ppu_loc_aux){
+		.bg_shift_x = viewport.x,
+		.bg_shift_y = viewport.y,
+		.fg_fetch	= 0,
+		.sysreset	= 0,
+	});
+
+	// update previous viewport values
+	previousViewport = viewport;
+}
+
+void hh_setup_screen(){
+	//(HH_map_size_X*HH_map_size_Y)
+	int size = 2400; // max X = 40 en max Y = 80
+	FILE* level = fopen("../test/bin/level1_test.bin", "rb"); /* open binary file */
+	if (!level) { /* check if file opened successfully */
+		fprintf(stderr, "Error: Failed to open file.\n");
+		return;
+	}
+	fseek(level, (0* sizeof(int)) + sizeof(int), SEEK_SET);
+	int* tile = (int*)malloc(size*sizeof(int));
+   fread(tile, sizeof(int), size, level); // read 1 tile from binary
+
+	fclose(level);
+
+	for(int BAM_index = 0; BAM_index < size; BAM_index++){
+		hh_ppu_update_background(BAM_index, (hh_s_ppu_loc_bam_entry){
+			.horizontal_flip = false,
+			.vertical_flip   = false,
+			.palette_index   = hh_get_palette(tile[BAM_index]),
+			.tilemap_index   = tile[BAM_index],
+		});
+	}
+	free(tile);
+}
diff --git a/src/engine/draw_screen.h b/src/engine/draw_screen.h
new file mode 100644
index 0000000..b181108
--- /dev/null
+++ b/src/engine/draw_screen.h
@@ -0,0 +1,21 @@
+#pragma once
+
+
+// every function call for drawing the screen goes here.
+#include "engine/maths.h"
+#include "ppu/ppu.h"
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+
+#define HH_map_size_X 80
+#define HH_map_size_Y 60
+
+/** @brief return a single tile from world binary */
+uint8_t hh_world_to_tile(vec2 pos);
+/** @brief shift to level if viewport changed position */
+void hh_draw_screen(vec2 viewport);
+/** @brief send data to BAM memory from binary level */
+void hh_setup_screen();
diff --git a/src/engine/engine.c b/src/engine/engine.c
new file mode 100644
index 0000000..799ee7c
--- /dev/null
+++ b/src/engine/engine.c
@@ -0,0 +1,4 @@
+#include "engine/draw_screen.h"
+#include "engine/level.h"
+#include "engine/maths.h"
+#include "engine/sprite_controller.h"
diff --git a/src/engine/entity.c b/src/engine/entity.c
new file mode 100644
index 0000000..153e7e1
--- /dev/null
+++ b/src/engine/entity.c
@@ -0,0 +1,46 @@
+#include <stdbool.h>
+
+#include "engine/entity.h"
+#include "engine/maths.h"
+
+/*
+    PLAYER: (pos on X)
+    ,___,
+    |   |
+    | X |
+    |___|
+
+*/
+
+bool hh_collision(vec_cor pos1, vec2 pos2){
+    if (pos2.x == CLAMP(pos2.x, pos1.x, pos1.x+16)){// hit x
+        return true;
+    }
+
+    if (pos2.y == CLAMP(pos2.y, pos1.y, pos1.y+16)){// hit y
+        return true;
+    }
+    return false;
+}
+
+void hh_solve_collision(vec2 pos_environment, hh_entity* entity){
+	if (!hh_collision(pos_environment,entity->pos))
+		return;
+
+	printf("BONK!/n");
+	// if (entity->vel.y > 0){
+	// 	entity->pos.y = MAX(entity->pos.y,pos_environment.y);
+	// 	entity->vel.y = 0;
+	// } else {
+	// 	entity->pos.y = MIN(entity->pos.y,pos_environment.y);
+	// 	entity->vel.y = 0;
+	// }
+	// if (entity->vel.x <= 0){
+	// 	entity->pos.x = MIN(entity->pos.x,pos_environment.x-16);
+	// 	entity->vel.x = 0;
+	// } else {
+	// 	entity->pos.x = MAX(entity->pos.x,pos_environment.x+16);
+	// 	entity->vel.x = 0;
+	// } 
+}
+
diff --git a/src/engine/entity.h b/src/engine/entity.h
new file mode 100644
index 0000000..f45dae2
--- /dev/null
+++ b/src/engine/entity.h
@@ -0,0 +1,57 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "ppu/types.h"
+
+#include "engine/maths.h"
+
+typedef uint8_t hh_idx_t;
+
+typedef enum {
+	fire, ice, poison
+}hh_e_damage_t;
+
+typedef struct {
+	hh_s_ppu_loc_fam_entry fam; //screen
+	hh_idx_t frame0;
+	hh_idx_t palette;
+	
+}hh_s_rendering;
+
+typedef struct {
+	int8_t hp;
+	int8_t dmg;
+	hh_e_damage_t dmg_type;
+	int8_t speed_x, speed_y;
+
+} hh_s_atributes;
+
+
+typedef struct {
+    vec2 pos, vel, vec;
+    bool is_grounded;
+    int8_t hp;
+    int8_t speed;
+	 hh_s_rendering render;
+    //armor/block?
+}hh_entity;
+
+typedef struct {
+	hh_entity p;
+	hh_s_atributes atr;
+}hh_s_player;
+
+
+/// @brief detect for collision enity and eviroment
+/// @param pos1 position of environment tile to be checked
+/// @param pos2 position entity
+/// @return true if collision between enity and environment
+bool hh_collision(vec2 pos1, vec2 pos2);
+
+/// @brief solve collisions
+/// @param environment position
+/// @param entity position
+/// @return solved new entity position
+void hh_solve_collision(vec2 pos_environment, hh_entity* entity);
diff --git a/src/engine/level.h b/src/engine/level.h
new file mode 100644
index 0000000..8d610dd
--- /dev/null
+++ b/src/engine/level.h
@@ -0,0 +1,5 @@
+#pragma once
+//deal with loading/saving the correct level
+
+/** @brief  */
+void hh_map_load();
diff --git a/src/engine/maths.c b/src/engine/maths.c
new file mode 100644
index 0000000..475bba2
--- /dev/null
+++ b/src/engine/maths.c
@@ -0,0 +1,19 @@
+#include "engine/maths.h"
+
+vec2 vec_add(vec2 a, vec2 b){
+	return (vec2){a.x + b.x, a.y + b.y};
+}
+
+vec_cor vec_cen2cor(vec_cen in, vec2 halfDistance){
+	return (vec_cor){
+		.x = in.x - halfDistance.x,
+		.y = in.y - halfDistance.y,
+	};
+}
+
+vec_cen vec_cor2cen(vec_cor in, vec2 halfDistance){
+	return (vec_cen){
+		.x = in.x + halfDistance.x,
+		.y = in.y + halfDistance.y,
+	};
+}
diff --git a/src/engine/maths.h b/src/engine/maths.h
new file mode 100644
index 0000000..bef287e
--- /dev/null
+++ b/src/engine/maths.h
@@ -0,0 +1,22 @@
+#pragma once
+#include <stdint.h>
+// #include <math.h>
+
+typedef struct {
+	int32_t x,y;
+} vec2;
+
+typedef vec2 vec_cen;//centered
+typedef vec2 vec_cor;//left upper corner
+
+vec2 vec_add(vec2 a, vec2 b);
+
+vec_cor vec_cen2cor(vec_cen in, vec2 halfDistance);
+vec_cor vec_cor2cen(vec_cen in, vec2 halfDistance);
+
+//fixed point at decimal 7lsb (world positions in pixels (with fixed decimal point))
+#define HH_MATH_FIXED_POINT 7
+
+#define MIN(a,b) (((a)<(b))?(a):(b))
+#define MAX(a,b) (((a)>(b))?(a):(b))
+#define CLAMP(N,LOWER,UPPER) (MIN(MAX(LOWER, N), UPPER))
diff --git a/src/engine/player_controller.c b/src/engine/player_controller.c
new file mode 100644
index 0000000..6735620
--- /dev/null
+++ b/src/engine/player_controller.c
@@ -0,0 +1,167 @@
+#include "ppu/types.h"
+#include "engine/camera.h"
+#include "engine/draw_screen.h"
+#include "engine/sprite_controller.h"
+#include "engine/player_controller.h"
+
+#include "demo.h"
+#include <stdio.h>
+
+#include "input.h"
+
+void hh_player_actions() {
+	static hh_entity player={
+		.hp = 4,
+		.speed = 6,
+		.is_grounded = false,
+		.pos = (vec2){32,32},
+		.vel = (vec2){0,0},
+		.vec = (vec2){0,0},
+		.render = {
+			.frame0 = 20,
+			.palette = 7,
+			.fam = (hh_s_ppu_loc_fam_entry){
+				.horizontal_flip = false,
+				.vertical_flip = false,
+				.palette_index = 7,
+				.tilemap_index = 2,
+			}
+		}
+	}, player_new = {0};
+
+	// hh_input_read();
+	player.vel = (vec2){.x = (-1 * g_hh_controller_p1.dpad_left) + (1 * g_hh_controller_p1.dpad_right),
+	.y = (-1 * g_hh_controller_p1.dpad_up) + (1 * g_hh_controller_p1.dpad_down) };
+	// const int8_t maa = 3;
+	// const int8_t mbb = -3;
+	// if (g_hh_controller_p1.dpad_up)
+	//
+	// if (g_hh_controller_p1.dpad_down)
+	//
+	// if (g_hh_controller_p1.dpad_left) {
+	// 	player.vel.x += mbb;
+	// 	// g_hh_demo_balls[0].horizontal_flip = true;
+	// }
+	// if (g_hh_controller_p1.dpad_right) {
+	// 	player.vel.x += maa;
+	// 	// g_hh_demo_balls[0].horizontal_flip = true;
+	// }
+	// if (g_hh_controller_p1.button_primary /*&& player.is_grounded*/) //JUMP
+	// 	player.vel.y += -6;
+	// // // if (g_hh_controller_p1.button_secondary)
+
+	// player.render.fam.palette_index = 7;
+	// player.render.fam.tilemap_index = 7;
+
+	// printf("%x ",player.render.fam.palette_index);
+
+	// player.vel.y += 1; //gravity
+
+
+	//END OF VECTOR CHANGES
+	// player.vel.y = CLAMP(player.vel.y,-32,32);
+	// player.vel.x = CLAMP(player.vel.x,-32,32);
+
+	player_new.pos = (vec2){
+		.x = player.pos.x + player.vel.x,
+		.y = player.pos.y + player.vel.y,
+	};
+
+
+
+	// const uint8_t empty = 0;
+	// hh_s_tiles tiles[9];
+	// const vec2 tile_offset[9] = {
+	// 	(vec2){-16,-16},(vec2){0,-16},(vec2){+16,-16},
+	// 	(vec2){-16,0},  (vec2){0,0},  (vec2){+16,0},
+	// 	(vec2){-16,+16},(vec2){0,+16},(vec2){+16,+16},
+	// };
+	// for (int i = 0; i < 9; i++) {
+	// 	vec2 temp_pos = vec_add(player.pos, tile_offset[i]);
+	// 	temp_pos =(vec2){
+	// 		.x = temp_pos.x,
+	// 		.y = temp_pos.y,
+	// 	};
+	// 	hh_s_tiles tile = {
+	// 		.pos = temp_pos,
+	// 		.idx = hh_world_to_tile(temp_pos)
+	// 	};
+	// 	if(hh_colidable(tile.idx)) {
+	// 		tiles[i]=tile;
+	// 		// printf(" collidable near!");
+	// 	} else {
+	// 		tiles[i].idx = 0;
+	// 	}
+	// }
+	/*
+	012
+	345
+	678
+	*/
+	// for (int i = 0; i < 9; i++)
+	// {
+	// 	if (tiles[i].idx != 0){
+	// 		hh_solve_collision(tiles[i].pos, &player);
+	// 	}
+	// }
+
+	player_new.is_grounded = false;
+
+	// solves x collision
+	if (player.vel.x <= 0) {
+		if (hh_colidable(hh_world_to_tile((vec2){.x=player_new.pos.x + 0, .y=player.pos.y + 0})) || 
+			hh_colidable(hh_world_to_tile((vec2){.x=player_new.pos.x + 0, .y=player.pos.y + 15}))) {
+			player_new.pos.x = (player_new.pos.x & ~15) + 16,
+			player_new.vel.x = 0;
+		}
+	} else {
+		if (hh_colidable(hh_world_to_tile((vec2){.x=player_new.pos.x + 16, .y=player.pos.y + 0})) || 
+			hh_colidable(hh_world_to_tile((vec2){.x=player_new.pos.x + 16, .y=player.pos.y + 15}))) {
+			player_new.pos.x = player_new.pos.x & ~15, // <-- magic comma, NOT TOUCHY
+			player_new.vel.x = 0;
+		}
+	}
+
+	//solves y collision
+	if (player.vel.y <= 0) {
+		if (hh_colidable(hh_world_to_tile((vec2){.x=player_new.pos.x + 0, .y=player_new.pos.y + 0})) || 
+			hh_colidable(hh_world_to_tile((vec2){.x=player_new.pos.x + 0, .y=player_new.pos.y + 15}))) {
+			player_new.pos.y = (player_new.pos.y & ~15) + 16,
+			player_new.vel.y = 0;
+		}
+	} else {
+		if (hh_colidable(hh_world_to_tile((vec2){.x=player_new.pos.x + 0, .y=player_new.pos.y + 16})) || 
+			hh_colidable(hh_world_to_tile((vec2){.x=player_new.pos.x + 16, .y=player_new.pos.y + 15}))) {
+			player_new.pos.y = player_new.pos.y & ~15,
+			player_new.vel.y = 0;
+			player_new.is_grounded = true;
+		}
+	}
+
+	player = player_new;
+
+	vec_cor cam_pos;//value in tiles
+	// cam_pos = (vec2){0,0};
+	cam_pos = hh_update_camera(player.pos,(vec2){0,0},(vec2){.x=20*16,.y=30*16});//TODO: remove magic number(s)
+	// printf("%i, %i:%i, %i\n",player.pos.x,player.pos.y,cam_pos.x,cam_pos.y);
+	hh_draw_screen(cam_pos);
+	// update player sprite on ppu
+	player.render.fam.position_x = (player.pos.x-cam_pos.x);
+	player.render.fam.position_y = (player.pos.y-cam_pos.y);
+
+
+	player.render.fam.tilemap_index = 2;//TODO: these two lines should be redundant
+	player.render.fam.palette_index = 7;
+	hh_ppu_update_foreground(0, player.render.fam);
+
+
+	hh_s_ppu_loc_fam_entry sprite = {
+		.position_x = 16,
+		.position_y = 16,
+		.palette_index = 7,
+		.tilemap_index = 2,
+	};
+	hh_ppu_update_foreground(1, sprite);
+
+}
+
diff --git a/src/engine/player_controller.h b/src/engine/player_controller.h
new file mode 100644
index 0000000..400c18e
--- /dev/null
+++ b/src/engine/player_controller.h
@@ -0,0 +1,7 @@
+#pragma once
+
+#include "engine/maths.h"
+#include "engine/entity.h"
+// inputs
+
+void hh_player_actions();
diff --git a/src/engine/sprite_controller.c b/src/engine/sprite_controller.c
new file mode 100644
index 0000000..5d93cf8
--- /dev/null
+++ b/src/engine/sprite_controller.c
@@ -0,0 +1,22 @@
+#include <stdint.h>
+
+#include "engine/sprite_controller.h"
+#include "ppu/types.h"
+#include "ppu/consts.h"
+#include "ppu/ppu.h"
+
+uint8_t hh_get_palette(uint8_t tile_idx) {
+	return hh_g_sprite_palette[tile_idx];
+}
+
+void hh_setup_palettes(){
+	for (int idx = 0; idx < HH_PPU_PALETTE_COUNT; idx++) {
+		for (int col = 0; col < HH_PPU_PALETTE_COLOR_COUNT; col++) {
+			hh_ppu_update_color(idx,col,hh_g_palette[idx][col]);
+		}
+	}	
+}
+
+bool hh_colidable(uint8_t tile_idx){
+	return (hh_get_palette(tile_idx) != 0);
+}
diff --git a/src/engine/sprite_controller.h b/src/engine/sprite_controller.h
new file mode 100644
index 0000000..001a459
--- /dev/null
+++ b/src/engine/sprite_controller.h
@@ -0,0 +1,106 @@
+#pragma once
+#include <stdint.h>
+
+#include "ppu/types.h"
+
+// handles sprites
+
+// Bg sprites
+
+// Fg or entity sprites
+
+//TODO: pack data inside of sprite_palette LUT
+//HH_PPU_PALETTE_COUNT
+#define HH_SPRITE_COUNT 40
+#define HH_PAL_IDX_SKY 0
+#define HH_PAL_IDX_BRICK 1
+const static uint8_t hh_g_sprite_palette[HH_SPRITE_COUNT] = {
+	0,1,1,1,1,1,1,1,1,1, //1+9
+	1,1,1,1,1,1,1,1,1,1, //6+4
+	1,1,1,1,1,1,1,1,1,	//9
+	7,7,7,2,7,7,1,2,7
+	//other palettes here:
+};
+
+
+const static hh_ppu_loc_palette_table_t hh_g_palette = {
+	{//palette info here
+		{0x1,0x2,0x3},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0}},
+	{//Bricks
+		{0x1,0x2,0x3},//01
+		{0xd,0x8,0xa},//24
+		{0x0,0x0,0x1},//25
+		{0x1,0x1,0x1},//26
+		{0x1,0x1,0x2},//27
+		{0x2,0x2,0x3},//28
+		{0x3,0x4,0x5},//29
+		{0x5,0x1,0x7}},
+	{//slime
+		{0x1,0x2,0x3},
+		{0x1,0x3,0x2},
+		{0x4,0x8,0x3},
+		{0x7,0xa,0x4},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0}},
+	{
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0}},
+	{
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0}},
+	{
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0}},
+	{
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0}},
+	{
+		{0x0,0xf,0xf},
+		{0xf,0xf,0xf},
+		{0xf,0x0,0xf},
+		{0xf,0xf,0x0},
+		{0xf,0x0,0x0},
+		{0x0,0xf,0x0},
+		{0x0,0x0,0xf},
+		{0x0,0x0,0x0}}
+};
+
+void hh_setup_palettes();
+
+/** @brief return palette index that belongs to tilemap index */
+uint8_t hh_get_palette(uint8_t tile_idx);
+
+bool hh_colidable(uint8_t tile_idx);
diff --git a/src/entity.h b/src/entity.h
new file mode 100644
index 0000000..181182b
--- /dev/null
+++ b/src/entity.h
@@ -0,0 +1,14 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef struct {
+	uint16_t pos_x;
+	uint16_t pos_y;
+	uint8_t radius;
+	uint8_t rotation; //45 degrees steps 0 == right 2 == down 4 == left 6 == up
+	uint8_t direction_x; //direction where its looking at in case no input;
+	int8_t speed;	//10 default L/R MODifier
+	bool in_air;
+} hh_s_entity_player;
diff --git a/src/input.h b/src/input.h
new file mode 100644
index 0000000..90f0c61
--- /dev/null
+++ b/src/input.h
@@ -0,0 +1,21 @@
+#pragma once
+
+#include <stdbool.h>
+
+/** @brief game controller state */
+typedef struct {
+	bool dpad_up;
+	bool dpad_down;
+	bool dpad_left;
+	bool dpad_right;
+	bool button_primary;
+	bool button_secondary;
+} hh_s_gamepad;
+
+/** @brief player 1's controller */
+extern hh_s_gamepad g_hh_controller_p1;
+/** @brief player 2's controller */
+extern hh_s_gamepad g_hh_controller_p2;
+
+/** @brief update g_hh_controller_p1 and 2 by reading buttons */
+void hh_input_read();
diff --git a/src/main.c b/src/main.c
index f4de225..191d5d9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,8 +1,8 @@
 #include <stdlib.h>
 
-#include "main.h"
-#include "ppu/ppu.h"
 #include "demo.h"
+#include "input.h"
+#include "main.h"
 
 bool g_hh_run = true;
 
@@ -15,19 +15,7 @@ int main() {
 
 void hh_ppu_vblank_interrupt() {
 	static unsigned long frame = 0;
-	frame++;
-
+	hh_input_read();
 	hh_demo_loop(frame);
-}
-
-void hh_setup() {
-	hh_ppu_init();
-
-	hh_demo_setup();
-}
-
-void hh_exit() {
-	g_hh_run = false;
-
-	hh_ppu_deinit();
+	frame++;
 }
diff --git a/src/makefile b/src/makefile
index 1f1dc65..d7d9087 100644
--- a/src/makefile
+++ b/src/makefile
@@ -4,6 +4,7 @@ TARGET = main
 
 # platform is ds (desktop) or stm (stm32)
 PLATFORM = ds
+# if your editor uses compile_commands.json for autocomplete, you should run `make compile_commands.json` again
 
 HOST=$(strip $(shell uname -o))
 
@@ -29,7 +30,14 @@ CFLAGS += $(if $(DESKTOP), -DHH_TARGET_DESKTOP, )
 LOCAL_SRCS += main.c \
 							ppu/internals.c \
 							ppu/ppu.c \
-							demo.c
+							demo.c \
+							engine/engine.c \
+							engine/sprite_controller.c \
+							engine/player_controller.c \
+							engine/draw_screen.c \
+							engine/camera.c \
+							engine/maths.c \
+							engine/entity.c
 
 CFLAGS += $(SHARED_FLAGS)
 LFLAGS += $(SHARED_FLAGS)
@@ -74,14 +82,14 @@ flash: $(TARGET).bin
 $(TARGET): $(OBJS)
 	$(LD) $^ $(LFLAGS) -o $@
 
-compile_commands.json:
+compile_commands.json: makefile stm32.mk ds.mk
 	compiledb make -Bn
 	../scripts/compiledb-full-path-mingw.sh compile_commands.json
 
 PHONY += format
 format:
-	clang-format -i $(LOCAL_SRCS)
-	clang-tidy --fix-errors $(LOCAL_SRCS)
+	clang-format -i $(LOCAL_SRCS) $(DESKTOP_SRCS)
+	clang-tidy --fix-errors $(LOCAL_SRCS) $(DESKTOP_SRCS)
 
 PHONY += clean
 clean:
diff --git a/src/ppu/internals.c b/src/ppu/internals.c
index 650ba3e..b8d3e27 100644
--- a/src/ppu/internals.c
+++ b/src/ppu/internals.c
@@ -1,8 +1,8 @@
 #include <stdlib.h>
 
-#include "ppu/types.h"
-#include "ppu/internals.h"
 #include "ppu/consts.h"
+#include "ppu/internals.h"
+#include "ppu/types.h"
 
 bool hh_ppu_vram_valid_address(hh_ppu_addr_t addr) {
 #pragma GCC diagnostic push
@@ -17,88 +17,59 @@ bool hh_ppu_vram_valid_address(hh_ppu_addr_t addr) {
 }
 
 void hh_ppu_vram_write(hh_s_ppu_vram_data data) {
-	for (unsigned i = 0; i < data.size; i++)
-		hh_ppu_vram_dwrite(data.offset + i, data.data[i]);
+	for (unsigned i = 0; i < data.size; i++) hh_ppu_vram_dwrite(data.offset + i, data.data[i]);
 }
 
 hh_s_ppu_vram_data hh_ppu_2nat_bam(hh_s_ppu_loc_bam_entry e) {
-	hh_ppu_data_t* data = malloc(sizeof(hh_ppu_data_t) * HH_PPU_VRAM_BAM_ENTRY_SIZE);
+	hh_ppu_data_t *data = malloc(sizeof(hh_ppu_data_t) * HH_PPU_VRAM_BAM_ENTRY_SIZE);
 
-	data[0] = HH_RESIZE(e.tilemap_index, 9, 0) << 0 |
-	          HH_RESIZE(e.palette_index, 2, 0) << 10 |
-	          e.vertical_flip << 13 |
-	          e.horizontal_flip << 14;
+	data[0] = HH_RESIZE(e.tilemap_index, 9, 0) << 0 | HH_RESIZE(e.palette_index, 2, 0) << 10 | e.vertical_flip << 13 | e.horizontal_flip << 14;
 
-	hh_s_ppu_vram_data out = {
-		.data = data,
-		.size = HH_PPU_VRAM_FAM_ENTRY_SIZE
-	};
+	hh_s_ppu_vram_data out = {.data = data, .size = HH_PPU_VRAM_FAM_ENTRY_SIZE};
 	return out;
 }
 
 hh_s_ppu_vram_data hh_ppu_2nat_fam(hh_s_ppu_loc_fam_entry e) {
-	hh_ppu_data_t* data = malloc(sizeof(hh_ppu_data_t) * HH_PPU_VRAM_FAM_ENTRY_SIZE);
+	hh_ppu_data_t *data = malloc(sizeof(hh_ppu_data_t) * HH_PPU_VRAM_FAM_ENTRY_SIZE);
 
 	e.position_x += 16;
 	e.position_y += 16;
-	data[0] = HH_RESIZE(e.tilemap_index, 9, 0) << 0 |
-	          HH_RESIZE(e.palette_index, 2, 0) << 10 |
-	          HH_RESIZE(e.position_y, 2, 0) << 13;
-	data[1] = HH_RESIZE(e.position_y, 7, 3) << 0 |
-	          HH_RESIZE(e.position_x, 8, 0) << 5 |
-	          e.vertical_flip << 14 |
-	          e.horizontal_flip << 15;
-
-	hh_s_ppu_vram_data out = {
-		.data = data,
-		.size = HH_PPU_VRAM_FAM_ENTRY_SIZE
-	};
+	data[0] = HH_RESIZE(e.tilemap_index, 9, 0) << 0 | HH_RESIZE(e.palette_index, 2, 0) << 10 | HH_RESIZE(e.position_y, 2, 0) << 13;
+	data[1] = HH_RESIZE(e.position_y, 7, 3) << 0 | HH_RESIZE(e.position_x, 8, 0) << 5 | e.vertical_flip << 14 | e.horizontal_flip << 15;
+
+	hh_s_ppu_vram_data out = {.data = data, .size = HH_PPU_VRAM_FAM_ENTRY_SIZE};
 	return out;
 }
 
 hh_s_ppu_vram_data hh_ppu_2nat_aux(hh_s_ppu_loc_aux aux) {
-	hh_ppu_data_t* data = malloc(sizeof(hh_ppu_data_t) * HH_PPU_VRAM_AUX_SIZE);
-
-	data[0] = HH_RESIZE(aux.bg_shift_y, 7, 0) << 0 |
-	          HH_RESIZE(aux.bg_shift_x, 7, 0) << 8;
-	data[1] = HH_RESIZE(aux.bg_shift_x, 8, 8) << 0 |
-	          aux.fg_fetch << 1 |
-	          aux.sysreset << 2;
-
-	hh_s_ppu_vram_data out = {
-		.data = data,
-		.size = HH_PPU_VRAM_AUX_SIZE
-	};
+	hh_ppu_data_t *data = malloc(sizeof(hh_ppu_data_t) * HH_PPU_VRAM_AUX_SIZE);
+
+	data[0] = HH_RESIZE(aux.bg_shift_y, 7, 0) << 0 | HH_RESIZE(aux.bg_shift_x, 7, 0) << 8;
+	data[1] = HH_RESIZE(aux.bg_shift_x, 8, 8) << 0 | aux.fg_fetch << 1 | aux.sysreset << 2;
+
+	hh_s_ppu_vram_data out = {.data = data, .size = HH_PPU_VRAM_AUX_SIZE};
 	return out;
 }
 
 hh_s_ppu_vram_data hh_ppu_2nat_sprite(const hh_ppu_loc_sprite_data_t sprite_data) {
-	hh_ppu_data_t* data = malloc(sizeof(hh_ppu_data_t) * HH_PPU_VRAM_TMM_SPRITE_SIZE);
+	hh_ppu_data_t *data = malloc(sizeof(hh_ppu_data_t) * HH_PPU_VRAM_TMM_SPRITE_SIZE);
 
 	for (unsigned i = 0; i < HH_PPU_SPRITE_WIDTH * HH_PPU_SPRITE_HEIGHT; i++) {
-		unsigned word = i / 5;
+		unsigned word  = i / 5;
 		unsigned pixel = i % 5;
 		if (pixel == 0) data[word] = 0;
 		data[word] |= HH_RESIZE(sprite_data[i], 2, 0) << pixel * 3;
 	}
 
-	hh_s_ppu_vram_data out = {
-		.data = data,
-		.size = HH_PPU_VRAM_TMM_SPRITE_SIZE
-	};
+	hh_s_ppu_vram_data out = {.data = data, .size = HH_PPU_VRAM_TMM_SPRITE_SIZE};
 	return out;
 }
 
 hh_s_ppu_vram_data hh_ppu_2nat_color(hh_ppu_rgb_color_t rgb) {
-	hh_ppu_data_t* data = malloc(sizeof(hh_ppu_data_t) * HH_PPU_VRAM_PAL_ENTRY_SIZE);
+	hh_ppu_data_t *data = malloc(sizeof(hh_ppu_data_t) * HH_PPU_VRAM_PAL_ENTRY_SIZE);
 
-	data[0] = HH_RESIZE(rgb[0], 3, 0) << 8 |
-	          HH_RESIZE(rgb[1], 3, 0) << 4 |
-	          HH_RESIZE(rgb[2], 3, 0) << 0;
+	data[0] = HH_RESIZE(rgb[0], 3, 0) << 8 | HH_RESIZE(rgb[1], 3, 0) << 4 | HH_RESIZE(rgb[2], 3, 0) << 0;
 
-	hh_s_ppu_vram_data out = {
-		.data = data,
-		.size = HH_PPU_VRAM_PAL_ENTRY_SIZE
-	};
+	hh_s_ppu_vram_data out = {.data = data, .size = HH_PPU_VRAM_PAL_ENTRY_SIZE};
 	return out;
 }
diff --git a/src/ppu/ppu.c b/src/ppu/ppu.c
index 5f33c55..df14b9f 100644
--- a/src/ppu/ppu.c
+++ b/src/ppu/ppu.c
@@ -1,52 +1,48 @@
 #include <stdlib.h>
 
-#include "ppu/ppu.h"
-#include "ppu/internals.h"
 #include "ppu/consts.h"
+#include "ppu/internals.h"
+#include "ppu/ppu.h"
 
 void hh_ppu_update_foreground(unsigned index, hh_s_ppu_loc_fam_entry e) {
 	hh_s_ppu_vram_data s = hh_ppu_2nat_fam(e);
-	s.offset = HH_PPU_VRAM_FAM_OFFSET + HH_PPU_VRAM_FAM_ENTRY_SIZE * index;
+	s.offset			 = HH_PPU_VRAM_FAM_OFFSET + HH_PPU_VRAM_FAM_ENTRY_SIZE * index;
 	hh_ppu_vram_write(s);
 	free(s.data);
 }
 
 void hh_ppu_update_background(unsigned index, hh_s_ppu_loc_bam_entry e) {
 	hh_s_ppu_vram_data s = hh_ppu_2nat_bam(e);
-	s.offset = HH_PPU_VRAM_BAM_OFFSET + HH_PPU_VRAM_BAM_ENTRY_SIZE * index;
+	s.offset			 = HH_PPU_VRAM_BAM_OFFSET + HH_PPU_VRAM_BAM_ENTRY_SIZE * index;
 	hh_ppu_vram_write(s);
 	free(s.data);
 }
 
 void hh_ppu_update_sprite(unsigned tilemap_index, const hh_s_ppu_loc_sprite sprite) {
 	hh_s_ppu_vram_data s = hh_ppu_2nat_sprite(sprite);
-	s.offset = HH_PPU_VRAM_TMM_OFFSET + HH_PPU_VRAM_TMM_SPRITE_SIZE * tilemap_index;
+	s.offset			 = HH_PPU_VRAM_TMM_OFFSET + HH_PPU_VRAM_TMM_SPRITE_SIZE * tilemap_index;
 	hh_ppu_vram_write(s);
 	free(s.data);
 }
 
 void hh_ppu_update_aux(hh_s_ppu_loc_aux aux) {
 	hh_s_ppu_vram_data a = hh_ppu_2nat_aux(aux);
-	a.offset = HH_PPU_VRAM_AUX_OFFSET;
+	a.offset			 = HH_PPU_VRAM_AUX_OFFSET;
 	hh_ppu_vram_write(a);
 	free(a.data);
 }
 
 void hh_ppu_update_palette_table(hh_ppu_loc_palette_table_t table) {
-	for(unsigned i = 0; i < HH_PPU_PALETTE_COUNT; i++)
-		hh_ppu_update_palette(i, table[i]);
+	for (unsigned i = 0; i < HH_PPU_PALETTE_COUNT; i++) hh_ppu_update_palette(i, table[i]);
 }
 
 void hh_ppu_update_palette(unsigned palette_index, hh_ppu_loc_palette_data_t palette) {
-	for(unsigned i = 0; i < HH_PPU_PALETTE_COLOR_COUNT; i++)
-		hh_ppu_update_color(palette_index, i, palette[i]);
+	for (unsigned i = 0; i < HH_PPU_PALETTE_COLOR_COUNT; i++) hh_ppu_update_color(palette_index, i, palette[i]);
 }
 
 void hh_ppu_update_color(unsigned palette_index, unsigned color_index, hh_ppu_rgb_color_t color) {
 	hh_s_ppu_vram_data c = hh_ppu_2nat_color(color);
-	c.offset = HH_PPU_VRAM_PAL_OFFSET +
-		palette_index * HH_PPU_VRAM_PAL_ENTRY_SIZE * HH_PPU_PALETTE_COLOR_COUNT +
-		color_index * HH_PPU_VRAM_PAL_ENTRY_SIZE;
+	c.offset			 = HH_PPU_VRAM_PAL_OFFSET + palette_index * HH_PPU_VRAM_PAL_ENTRY_SIZE * HH_PPU_PALETTE_COLOR_COUNT + color_index * HH_PPU_VRAM_PAL_ENTRY_SIZE;
 	hh_ppu_vram_write(c);
 	free(c.data);
 }
diff --git a/src/ppu/stm.c b/src/ppu/stm.c
new file mode 100644
index 0000000..fd4a18c
--- /dev/null
+++ b/src/ppu/stm.c
@@ -0,0 +1,4 @@
+#include "ppu/ppu.h"
+
+void hh_ppu_init() {}
+void hh_ppu_deinit() {}
diff --git a/src/ppusim/input.c b/src/ppusim/input.c
new file mode 100644
index 0000000..5323fb1
--- /dev/null
+++ b/src/ppusim/input.c
@@ -0,0 +1,16 @@
+#include <SDL2/SDL.h>
+
+#include "input.h"
+
+hh_s_gamepad g_hh_controller_p1 = {0};
+hh_s_gamepad g_hh_controller_p2 = {0};
+
+void hh_input_read() {
+	// SDL_PumpEvents();
+	const Uint8 *kb				  = SDL_GetKeyboardState(NULL);
+	g_hh_controller_p1.dpad_up	  = kb[SDL_SCANCODE_W];
+	g_hh_controller_p1.dpad_down  = kb[SDL_SCANCODE_S];
+	g_hh_controller_p1.dpad_left  = kb[SDL_SCANCODE_A];
+	g_hh_controller_p1.dpad_right = kb[SDL_SCANCODE_D];
+	g_hh_controller_p1.button_primary = kb[SDL_SCANCODE_SPACE];
+}
diff --git a/src/ppusim/mem.c b/src/ppusim/mem.c
index e3f41f5..bd8606e 100644
--- a/src/ppusim/mem.c
+++ b/src/ppusim/mem.c
@@ -1,8 +1,8 @@
-#include <stdlib.h>
 #include <stdio.h>
+#include <stdlib.h>
 
-#include "ppusim/mem.h"
 #include "ppu/internals.h"
+#include "ppusim/mem.h"
 
 hh_ppu_data_t *g_hh_ppusim_vram = NULL;
 
diff --git a/src/ppusim/pixel.c b/src/ppusim/pixel.c
index 6e915e6..0457d55 100644
--- a/src/ppusim/pixel.c
+++ b/src/ppusim/pixel.c
@@ -1,10 +1,10 @@
 #include <SDL2/SDL.h>
 #include <stdbool.h>
 
-#include "ppusim/work.h"
+#include "ppu/consts.h"
 #include "ppu/internals.h"
 #include "ppusim/mem.h"
-#include "ppu/consts.h"
+#include "ppusim/work.h"
 
 /* transform xy if tile is flipped */
 static uint16_t hh_ppusim_apply_transform(unsigned x, unsigned y, bool fliph, bool flipv) {
@@ -15,25 +15,25 @@ static uint16_t hh_ppusim_apply_transform(unsigned x, unsigned y, bool fliph, bo
 
 /* @brief get current bg pixel cidx */
 static uint8_t hh_ppusim_bg_pixel(unsigned x, unsigned y) {
-	hh_ppu_data_t* aux = &g_hh_ppusim_vram[HH_PPU_VRAM_AUX_OFFSET];
-	unsigned bg_shift_y = HH_RESIZE(aux[0], 7, 0);
-	unsigned bg_shift_x = HH_RESIZE(aux[0], 15, 8) | HH_RESIZE(aux[1], 0, 0) << 8;
-	unsigned abs_x = bg_shift_x + x;
-	unsigned abs_y = bg_shift_y + y;
-	unsigned grid_x = abs_x / HH_PPU_SPRITE_WIDTH;
-	unsigned grid_y = abs_y / HH_PPU_SPRITE_HEIGHT;
-	unsigned loc_x = abs_x - grid_x * HH_PPU_SPRITE_WIDTH;
-	unsigned loc_y = abs_y - grid_y * HH_PPU_SPRITE_HEIGHT;
-	unsigned bam_offset = grid_y * HH_PPU_BG_CANVAS_TILES_H + grid_x;
-	hh_ppu_data_t bam = g_hh_ppusim_vram[HH_PPU_VRAM_BAM_OFFSET + bam_offset];
-	uint8_t cidx = 0;
+	hh_ppu_data_t *aux		= &g_hh_ppusim_vram[HH_PPU_VRAM_AUX_OFFSET];
+	unsigned bg_shift_y		= HH_RESIZE(aux[0], 7, 0);
+	unsigned bg_shift_x		= HH_RESIZE(aux[0], 15, 8) | HH_RESIZE(aux[1], 0, 0) << 8;
+	unsigned abs_x			= bg_shift_x + x;
+	unsigned abs_y			= bg_shift_y + y;
+	unsigned grid_x			= abs_x / HH_PPU_SPRITE_WIDTH;
+	unsigned grid_y			= abs_y / HH_PPU_SPRITE_HEIGHT;
+	unsigned loc_x			= abs_x - grid_x * HH_PPU_SPRITE_WIDTH;
+	unsigned loc_y			= abs_y - grid_y * HH_PPU_SPRITE_HEIGHT;
+	unsigned bam_offset		= grid_y * HH_PPU_BG_CANVAS_TILES_H + grid_x;
+	hh_ppu_data_t bam		= g_hh_ppusim_vram[HH_PPU_VRAM_BAM_OFFSET + bam_offset];
+	uint8_t cidx			= 0;
 	uint16_t tile_pixel_idx = hh_ppusim_apply_transform(loc_x, loc_y, HH_RESIZE(bam, 14, 14), HH_RESIZE(bam, 13, 13));
-	uint16_t tile_idx = HH_RESIZE(bam, 9, 0);
-	hh_ppu_addr_t ttm_addr = tile_idx * HH_PPU_VRAM_TMM_SPRITE_SIZE + tile_pixel_idx / 5;
-	uint8_t word_bit_addr = (tile_pixel_idx % 5) * 3;
-	hh_ppu_data_t tmm = g_hh_ppusim_vram[HH_PPU_VRAM_TMM_OFFSET + ttm_addr];
+	uint16_t tile_idx		= HH_RESIZE(bam, 9, 0);
+	hh_ppu_addr_t ttm_addr	= tile_idx * HH_PPU_VRAM_TMM_SPRITE_SIZE + tile_pixel_idx / 5;
+	uint8_t word_bit_addr	= (tile_pixel_idx % 5) * 3;
+	hh_ppu_data_t tmm		= g_hh_ppusim_vram[HH_PPU_VRAM_TMM_OFFSET + ttm_addr];
 	cidx |= HH_RESIZE(bam, 12, 10) << 3;
-	cidx |= HH_RESIZE(tmm, word_bit_addr+2, word_bit_addr) << 0;
+	cidx |= HH_RESIZE(tmm, word_bit_addr + 2, word_bit_addr) << 0;
 	return cidx;
 }
 
@@ -44,42 +44,37 @@ static uint8_t hh_ppusim_fg_pixel(unsigned x, unsigned y) {
 	uint8_t cidx = 0;
 	for (unsigned i = 0; i < HH_PPU_FG_SPRITE_COUNT; i++) {
 		unsigned fam_offset = i * HH_PPU_VRAM_FAM_ENTRY_SIZE;
-		hh_ppu_data_t* fam = &g_hh_ppusim_vram[HH_PPU_VRAM_FAM_OFFSET + fam_offset];
-		unsigned sprite_y = HH_RESIZE(fam[0], 15, 13) | HH_RESIZE(fam[1], 4, 0) << 3;
-		unsigned sprite_x = HH_RESIZE(fam[1], 13, 5);
+		hh_ppu_data_t *fam	= &g_hh_ppusim_vram[HH_PPU_VRAM_FAM_OFFSET + fam_offset];
+		unsigned sprite_y	= HH_RESIZE(fam[0], 15, 13) | HH_RESIZE(fam[1], 4, 0) << 3;
+		unsigned sprite_x	= HH_RESIZE(fam[1], 13, 5);
 		if (x < sprite_x) continue;
 		if (x >= sprite_x + HH_PPU_SPRITE_WIDTH) continue;
 		if (y < sprite_y) continue;
 		if (y >= sprite_y + HH_PPU_SPRITE_HEIGHT) continue;
-		unsigned loc_x = x - sprite_x;
-		unsigned loc_y = y - sprite_y;
+		unsigned loc_x			= x - sprite_x;
+		unsigned loc_y			= y - sprite_y;
 		uint16_t tile_pixel_idx = hh_ppusim_apply_transform(loc_x, loc_y, HH_RESIZE(fam[1], 15, 15), HH_RESIZE(fam[1], 14, 14));
-		uint16_t tile_idx = HH_RESIZE(fam[0], 9, 0);
-		hh_ppu_addr_t ttm_addr = tile_idx * HH_PPU_VRAM_TMM_SPRITE_SIZE + tile_pixel_idx / 5;
-		uint8_t word_bit_addr = (tile_pixel_idx % 5) * 3;
-		hh_ppu_data_t tmm = g_hh_ppusim_vram[HH_PPU_VRAM_TMM_OFFSET + ttm_addr];
-		unsigned cidx_col = HH_RESIZE(tmm, word_bit_addr+2, word_bit_addr);
+		uint16_t tile_idx		= HH_RESIZE(fam[0], 9, 0);
+		hh_ppu_addr_t ttm_addr	= tile_idx * HH_PPU_VRAM_TMM_SPRITE_SIZE + tile_pixel_idx / 5;
+		uint8_t word_bit_addr	= (tile_pixel_idx % 5) * 3;
+		hh_ppu_data_t tmm		= g_hh_ppusim_vram[HH_PPU_VRAM_TMM_OFFSET + ttm_addr];
+		unsigned cidx_col		= HH_RESIZE(tmm, word_bit_addr + 2, word_bit_addr);
 		if (cidx_col == 0) continue;
 		unsigned cidx_pal = HH_RESIZE(fam[0], 12, 10);
-		cidx = (cidx_col << 0) | (cidx_pal << 3);
+		cidx			  = (cidx_col << 0) | (cidx_pal << 3);
 		break;
 	}
 	return cidx;
 }
 
-void hh_ppusim_pixel(uint8_t* s, unsigned x, unsigned y) {
-	uint8_t bg_cidx = hh_ppusim_bg_pixel(x, y);
-	uint8_t fg_cidx = hh_ppusim_fg_pixel(x, y);
-	uint8_t cidx = (fg_cidx & HH_MASK(3)) == 0 ? bg_cidx : fg_cidx;
-	hh_ppu_data_t pal_rgb = g_hh_ppusim_vram[HH_PPU_VRAM_PAL_OFFSET + cidx];
-	hh_ppu_rgb_color_t rgb = {
-		HH_RESIZE(pal_rgb, 11, 8),
-		HH_RESIZE(pal_rgb, 7, 4),
-		HH_RESIZE(pal_rgb, 3, 0)
-	};
+void hh_ppusim_pixel(uint8_t *s, unsigned x, unsigned y) {
+	uint8_t bg_cidx		   = hh_ppusim_bg_pixel(x, y);
+	uint8_t fg_cidx		   = hh_ppusim_fg_pixel(x, y);
+	uint8_t cidx		   = (fg_cidx & HH_MASK(3)) == 0 ? bg_cidx : fg_cidx;
+	hh_ppu_data_t pal_rgb  = g_hh_ppusim_vram[HH_PPU_VRAM_PAL_OFFSET + cidx];
+	hh_ppu_rgb_color_t rgb = {HH_RESIZE(pal_rgb, 11, 8), HH_RESIZE(pal_rgb, 7, 4), HH_RESIZE(pal_rgb, 3, 0)};
 
 	s[0] = rgb[0] << 4;
 	s[1] = rgb[1] << 4;
 	s[2] = rgb[2] << 4;
 }
-
diff --git a/src/ppusim/sim.c b/src/ppusim/sim.c
index 2816b31..a5fec45 100644
--- a/src/ppusim/sim.c
+++ b/src/ppusim/sim.c
@@ -1,26 +1,56 @@
-#include <stdlib.h>
-#include <stdbool.h>
 #include <SDL2/SDL.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
 
 #include "main.h"
 #include "ppu/ppu.h"
+#include "ppu/consts.h"
+#include "ppu/internals.h"
 #include "ppusim/mem.h"
 #include "ppusim/sim.h"
 #include "ppusim/work.h"
 
-SDL_Window *g_hh_window = NULL;
+SDL_Window *g_hh_window		= NULL;
 SDL_Renderer *g_hh_renderer = NULL;
 
 void hh_ppu_init() {
 	SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS);
-	g_hh_window = SDL_CreateWindow("ppusim", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, HH_PPU_SCREEN_WIDTH * HH_PPUSIM_UPSCALE_FACTOR, HH_PPU_SCREEN_HEIGHT * HH_PPUSIM_UPSCALE_FACTOR, SDL_WINDOW_SHOWN);
+	g_hh_window	  = SDL_CreateWindow("ppusim", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, HH_PPU_SCREEN_WIDTH * HH_PPUSIM_UPSCALE_FACTOR,
+									 HH_PPU_SCREEN_HEIGHT * HH_PPUSIM_UPSCALE_FACTOR, SDL_WINDOW_SHOWN);
 	g_hh_renderer = SDL_CreateRenderer(g_hh_window, -1, SDL_RENDERER_ACCELERATED);
 
 	g_hh_ppusim_core_count = SDL_GetCPUCount();
-	g_hh_ppusim_threads = malloc(sizeof(pthread_t) * g_hh_ppusim_core_count);
+	g_hh_ppusim_threads	   = malloc(sizeof(pthread_t) * g_hh_ppusim_core_count);
 
 	g_hh_ppusim_vram = malloc(sizeof(hh_ppu_data_t) * 0xffff);
 	memset(g_hh_ppusim_vram, 0x0000, 0xffff);
+	hh_ppu_load_tilemap();
+}
+
+void hh_ppu_load_tilemap() {
+	char* filename = "../test/bin/tiles.bin";
+	FILE* fp = fopen(filename,"rb");
+	if (!fp){
+		fprintf(stderr,"Error: Failed to load tiles.");
+		return;//error
+	}
+	int sprite_size = (HH_PPU_SPRITE_WIDTH * HH_PPU_SPRITE_HEIGHT);
+	fseek(fp, 0, SEEK_END);//goto EOF
+	int _size = ftell(fp)/sprite_size;
+	fseek(fp, 0, 0);//goto start of file
+
+	for (int i = 0; i < _size; i++) {
+		uint8_t data[sprite_size];
+
+		fread(data,sizeof(uint8_t),sprite_size,fp);
+		
+		hh_s_ppu_vram_data sprite = hh_ppu_2nat_sprite(data);
+		sprite.offset = i*HH_PPU_VRAM_TMM_SPRITE_SIZE;
+		hh_ppu_vram_write(sprite);
+		free(sprite.data);
+	}
+	fclose(fp);
 }
 
 void hh_ppu_deinit() {
@@ -36,8 +66,9 @@ void hh_loop() {
 	SDL_Event e;
 	while (g_hh_run) {
 		uint32_t start = SDL_GetTicks();
-		while (SDL_PollEvent(&e)) if (e.type == SDL_QUIT) exit(0);
-		
+		while (SDL_PollEvent(&e))
+			if (e.type == SDL_QUIT) exit(0);
+
 		hh_ppu_vblank_interrupt();
 
 		SDL_RenderClear(g_hh_renderer);
diff --git a/src/ppusim/sim.h b/src/ppusim/sim.h
index 73f4b23..4d1d718 100644
--- a/src/ppusim/sim.h
+++ b/src/ppusim/sim.h
@@ -4,3 +4,6 @@
 #define HH_PPUSIM_UPSCALE_FACTOR 3
 /** @brief max framerate for PPUSIM */
 #define HH_PPUSIM_FRAMERATE 60
+
+/** @brief pump tilemap from rom to ppu ram */
+void hh_ppu_load_tilemap(); //ppu sim?
diff --git a/src/ppusim/work.c b/src/ppusim/work.c
index fcb80ca..96d15aa 100644
--- a/src/ppusim/work.c
+++ b/src/ppusim/work.c
@@ -2,39 +2,41 @@
 #include <pthread.h>
 #include <stdio.h>
 
-#include "ppusim/work.h"
-#include "ppusim/sim.h"
 #include "ppu/consts.h"
 #include "ppusim/pixel.h"
+#include "ppusim/sim.h"
+#include "ppusim/work.h"
 
-pthread_t* g_hh_ppusim_threads;
+pthread_t *g_hh_ppusim_threads;
 unsigned g_hh_ppusim_core_count;
 hh_s_ppusim_screen g_hh_ppusim_screen;
 
-void* hh_ppusim_draw_thread(void* arg) {
-	unsigned core = (unsigned long) arg;
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wint-to-pointer-cast"
+#pragma GCC diagnostic ignored "-Wpointer-to-int-cast"
+
+void *hh_ppusim_draw_thread(void *arg) {
+	unsigned core = (unsigned long)arg;
 	for (unsigned y = core; y < HH_PPU_SCREEN_HEIGHT; y += g_hh_ppusim_core_count)
-		for (unsigned x = 0; x < HH_PPU_SCREEN_WIDTH; x++)
-			hh_ppusim_pixel(g_hh_ppusim_screen[y][x], x, y);
+		for (unsigned x = 0; x < HH_PPU_SCREEN_WIDTH; x++) hh_ppusim_pixel(g_hh_ppusim_screen[y][x], x, y);
 	return NULL;
 }
 
-void hh_ppusim_draw_frame(SDL_Renderer* renderer) {
-	for (unsigned core = 0; core < g_hh_ppusim_core_count; core++)
-		pthread_create(&g_hh_ppusim_threads[core], NULL, hh_ppusim_draw_thread, (void*)(unsigned long)core);
-	for (unsigned core = 0; core < g_hh_ppusim_core_count; core++)
-		pthread_join(g_hh_ppusim_threads[core], NULL);
-	
+void hh_ppusim_draw_frame(SDL_Renderer *renderer) {
+	for (unsigned core = 0; core < g_hh_ppusim_core_count; core++) pthread_create(&g_hh_ppusim_threads[core], NULL, hh_ppusim_draw_thread, (void *)(unsigned long)core);
+	for (unsigned core = 0; core < g_hh_ppusim_core_count; core++) pthread_join(g_hh_ppusim_threads[core], NULL);
+
 	for (unsigned x = 0; x < HH_PPU_SCREEN_WIDTH; x++) {
 		for (unsigned y = 0; y < HH_PPU_SCREEN_HEIGHT; y++) {
 			SDL_SetRenderDrawColor(renderer, g_hh_ppusim_screen[y][x][0], g_hh_ppusim_screen[y][x][1], g_hh_ppusim_screen[y][x][2], 255);
-			SDL_RenderFillRect(renderer, &(SDL_Rect) {
-				.x = x * HH_PPUSIM_UPSCALE_FACTOR,
-				.y = y * HH_PPUSIM_UPSCALE_FACTOR,
-				.w = HH_PPUSIM_UPSCALE_FACTOR,
-				.h = HH_PPUSIM_UPSCALE_FACTOR,
-			});
+			SDL_RenderFillRect(renderer, &(SDL_Rect){
+											 .x = x * HH_PPUSIM_UPSCALE_FACTOR,
+											 .y = y * HH_PPUSIM_UPSCALE_FACTOR,
+											 .w = HH_PPUSIM_UPSCALE_FACTOR,
+											 .h = HH_PPUSIM_UPSCALE_FACTOR,
+										 });
 		}
 	}
 }
 
+#pragma GCC diagnostic pop
diff --git a/src/ppusim/work.h b/src/ppusim/work.h
index 6f72357..3a165ff 100644
--- a/src/ppusim/work.h
+++ b/src/ppusim/work.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <SDL2/SDL.h>
+#include <pthread.h>
 
 #include "ppu/consts.h"
 
diff --git a/src/stm32.mk b/src/stm32.mk
index e41bcf9..3b5ccb9 100644
--- a/src/stm32.mk
+++ b/src/stm32.mk
@@ -17,6 +17,9 @@ SHARED_FLAGS += -I./stm32
 ifeq ($(HOST),GNU/Linux)
 SHARED_FLAGS += -I/usr/arm-none-eabi/include/
 endif
+ifeq ($(HOST),Msys)
+SHARED_FLAGS += -I/mingw64/arm-none-eabi/include/
+endif
 SHARED_FLAGS += -ffunction-sections
 SHARED_FLAGS += -fdata-sections
 SHARED_FLAGS += -Wl,--gc-sections
@@ -40,22 +43,25 @@ STM_SRCS += lib/FreeRTOS-Kernel/croutine.c \
             lib/FreeRTOS-Kernel/timers.c \
             lib/FreeRTOS-Kernel/portable/GCC/ARM_CM0/port.c \
             lib/FreeRTOS-Kernel/portable/MemMang/heap_4.c
-STM_SRCS += lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_rcc.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_rcc_ex.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_i2c.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_i2c_ex.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_gpio.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_dma.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_cortex.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_pwr.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_pwr_ex.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_flash.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_flash_ex.c \
+STM_SRCS += lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_spi.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_spi_ex.c \
             lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_tim.c \
             lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_tim_ex.c \
             lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_uart.c \
-            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_uart_ex.c
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_uart_ex.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_cortex.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_dma.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_flash.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_flash_ex.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_gpio.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_pwr.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_pwr_ex.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_rcc.c \
+            lib/STM32-base-STM32Cube/HAL/STM32F0xx/src/stm32f0xx_hal_rcc_ex.c
 STM_SRCS += stm32/idle_task_static_memory.c \
-						stm32/main.c
+						stm32/main.c \
+						stm32/setup.c \
+						ppu/stm.c \
+						stm32/input.c
 
diff --git a/src/stm32/input.c b/src/stm32/input.c
new file mode 100644
index 0000000..e2d07cb
--- /dev/null
+++ b/src/stm32/input.c
@@ -0,0 +1,13 @@
+#include <stm32f0xx_hal_gpio.h>
+
+#include "input.h"
+
+hh_s_gamepad g_hh_controller_p1 = { 0 };
+hh_s_gamepad g_hh_controller_p2 = { 0 };
+
+void hh_input_read() {
+	g_hh_controller_p1.dpad_left = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_4);
+	g_hh_controller_p1.dpad_right = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_5);
+	g_hh_controller_p1.dpad_down = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_6);
+	g_hh_controller_p1.dpad_up = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_8);
+}
diff --git a/src/stm32/main.c b/src/stm32/main.c
index 735b378..d381d35 100644
--- a/src/stm32/main.c
+++ b/src/stm32/main.c
@@ -1,4 +1,7 @@
 #include "main.h"
+#include "ppu/ppu.h"
+
+void hh_ppu_load_tilemap() {}
 
 void hh_loop() {
 	while(g_hh_run);
diff --git a/src/stm32/setup.c b/src/stm32/setup.c
new file mode 100644
index 0000000..2c3552b
--- /dev/null
+++ b/src/stm32/setup.c
@@ -0,0 +1,197 @@
+#include <stm32f0xx_hal.h>
+#include <stm32f0xx_hal_spi.h>
+#include <stm32f0xx_hal_uart.h>
+#include <stm32f0xx_hal_gpio.h>
+#include <FreeRTOS.h>
+#include <task.h>
+
+#include "main.h"
+#include "setup.h"
+#include "ppu/ppu.h"
+
+UART_HandleTypeDef huart2 = {
+	.Instance = USART2,
+	.Init.BaudRate = 115200,
+	.Init.WordLength = UART_WORDLENGTH_8B,
+	.Init.StopBits = UART_STOPBITS_1,
+	.Init.Parity = UART_PARITY_NONE,
+	.Init.Mode = UART_MODE_TX_RX,
+	.Init.HwFlowCtl = UART_HWCONTROL_NONE,
+	.Init.OverSampling = UART_OVERSAMPLING_16,
+	.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE,
+	.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT,
+};
+
+GPIO_InitTypeDef spi_gpio = {
+	.Pin = HH_IO_SPI_PINS,
+	.Mode = GPIO_MODE_AF_PP,
+	.Pull = GPIO_NOPULL,
+	.Speed = GPIO_SPEED_FREQ_HIGH,
+	.Alternate = GPIO_AF0_SPI1,
+};
+
+SPI_HandleTypeDef hspi1 = {
+	.Instance = SPI1,
+	.Init.Mode = SPI_MODE_MASTER,
+	.Init.Direction = SPI_DIRECTION_1LINE,
+	.Init.DataSize = SPI_DATASIZE_8BIT,
+	.Init.CLKPolarity = SPI_POLARITY_LOW,
+	.Init.CLKPhase = SPI_PHASE_1EDGE,
+	.Init.NSS = SPI_NSS_SOFT,
+	.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16,
+	.Init.FirstBit = SPI_FIRSTBIT_MSB,
+	.Init.TIMode = SPI_TIMODE_DISABLE,
+	.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE,
+	.Init.CRCPolynomial = 7,
+	.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE,
+	.Init.NSSPMode = SPI_NSS_PULSE_DISABLE,
+};
+
+TIM_HandleTypeDef htim3 = {
+	.Instance = TIM3,
+	.Init.Prescaler = 7999,
+	.Init.CounterMode = TIM_COUNTERMODE_UP,
+	.Init.Period = 65535,
+	.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1,
+	.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE,
+};
+
+static void hh_io_spi_setup();
+static void hh_io_tim_setup();
+static void hh_io_usart2_setup();
+static void hh_io_gpio_setup();
+static void hh_io_clock_setup();
+static void hh_io_setup_error_handler();
+
+void hh_setup() {
+	HAL_Init();
+
+	hh_io_clock_setup();
+	hh_io_usart2_setup();
+	hh_io_gpio_setup();
+	hh_io_spi_setup();
+	hh_io_tim_setup();
+
+	hh_ppu_init();
+}
+
+void hh_exit() {
+	hh_ppu_deinit();
+
+	HAL_DeInit();
+}
+
+void hh_io_clock_setup() {
+	if (HAL_OK != HAL_RCC_OscConfig(&(RCC_OscInitTypeDef){
+		.OscillatorType = RCC_OSCILLATORTYPE_HSI,
+		.HSIState = RCC_HSI_ON,
+		.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT,
+		.PLL.PLLState = RCC_PLL_ON,
+	})) return hh_io_setup_error_handler();
+
+	// cpu, ahb & apb clocks
+	if (HAL_OK != HAL_RCC_ClockConfig(&(RCC_ClkInitTypeDef){
+		.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1,
+		.SYSCLKSource = RCC_SYSCLKSOURCE_HSI,
+		.AHBCLKDivider = RCC_SYSCLK_DIV1,
+		.APB1CLKDivider = RCC_HCLK_DIV1,
+	}, FLASH_LATENCY_1)) return hh_io_setup_error_handler();
+
+	// usart2 clock (usb serial)
+	if (HAL_RCCEx_PeriphCLKConfig(&(RCC_PeriphCLKInitTypeDef){
+		.PeriphClockSelection = RCC_PERIPHCLK_USART2,
+		.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1,
+		.I2c1ClockSelection = RCC_I2C1CLKSOURCE_HSI,
+	}) != HAL_OK) return hh_io_setup_error_handler();
+}
+
+void hh_io_spi_setup() {
+	if (HAL_SPI_Init(&hspi1) != HAL_OK)
+		return hh_io_setup_error_handler();
+}
+
+void hh_io_usart2_setup() {
+	if (HAL_UART_Init(&huart2) != HAL_OK)
+		return hh_io_setup_error_handler();
+}
+
+void hh_io_tim_setup() {
+	if (HAL_TIM_Base_Init(&htim3) != HAL_OK)
+		return hh_io_setup_error_handler();
+
+	if (HAL_TIM_ConfigClockSource(&htim3, &(TIM_ClockConfigTypeDef) {
+		.ClockSource = TIM_CLOCKSOURCE_INTERNAL
+	}) != HAL_OK) return hh_io_setup_error_handler();
+
+	if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &(TIM_MasterConfigTypeDef) {
+		.MasterOutputTrigger = TIM_TRGO_RESET,
+		.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE,
+	}) != HAL_OK) return hh_io_setup_error_handler();
+}
+
+void hh_io_gpio_setup() {
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  __HAL_RCC_GPIOB_CLK_ENABLE();
+
+  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_SET);
+	HAL_GPIO_Init(GPIOA, &(GPIO_InitTypeDef) {
+		.Pin = GPIO_PIN_9,
+		.Mode = GPIO_MODE_OUTPUT_PP,
+		.Pull = GPIO_NOPULL,
+		.Speed = GPIO_SPEED_FREQ_LOW,
+	});
+	HAL_GPIO_Init(GPIOA, &(GPIO_InitTypeDef) {
+		.Pin = GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_8,
+		.Mode = GPIO_MODE_INPUT,
+		.Pull = GPIO_PULLDOWN,
+	});
+}
+
+void HAL_MspInit() {
+  __HAL_RCC_SYSCFG_CLK_ENABLE();
+  __HAL_RCC_PWR_CLK_ENABLE();
+}
+
+void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi) {
+  if(hspi->Instance != SPI1) return;
+
+	__HAL_RCC_SPI1_CLK_ENABLE();
+	__HAL_RCC_GPIOA_CLK_ENABLE();
+
+	HAL_GPIO_Init(HH_IO_SPI_PORT, &spi_gpio);
+}
+
+void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi) {
+  if(hspi->Instance != SPI1) return;
+
+	__HAL_RCC_SPI1_CLK_DISABLE();
+
+	HAL_GPIO_DeInit(HH_IO_SPI_PORT, HH_IO_SPI_PINS);
+}
+
+void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base) {
+  if(htim_base->Instance != TIM3) return;
+
+	__HAL_RCC_TIM3_CLK_ENABLE();
+}
+
+void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base) {
+  if(htim_base->Instance != TIM3) return;
+
+	__HAL_RCC_TIM3_CLK_DISABLE();
+}
+
+void SysTick_Handler() {
+	HAL_IncTick();
+	if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED)
+		xPortSysTickHandler();
+}
+
+void HardFault_Handler() {
+	for(;;);
+}
+
+void hh_io_setup_error_handler() {
+	__disable_irq();
+	while (1);
+}
diff --git a/src/stm32/setup.h b/src/stm32/setup.h
new file mode 100644
index 0000000..66d5ff3
--- /dev/null
+++ b/src/stm32/setup.h
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <stm32f0xx_hal_spi.h>
+#include <stm32f0xx_hal_uart.h>
+#include <stm32f0xx_hal_tim.h>
+#include <stm32f0xx_hal_gpio.h>
+
+#define HH_IO_SPI_PINS (GPIO_PIN_5 | GPIO_PIN_7)
+#define HH_IO_SPI_PORT GPIOA
+
+extern UART_HandleTypeDef huart2; // NOLINT
+extern GPIO_InitTypeDef spi_gpio; // NOLINT
+extern SPI_HandleTypeDef hspi1; // NOLINT
+extern TIM_HandleTypeDef htim3; // NOLINT
+
+// required HAL setup functions
+void HAL_MspInit(); // NOLINT
+void HAL_UART_MspInit(UART_HandleTypeDef *huart); // NOLINT
+void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi); // NOLINT
+void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi); // NOLINT
+void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base); // NOLINT
+void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base); // NOLINT
+void HardFault_Handler(); // NOLINT
+void SysTick_Handler(); // NOLINT
diff --git a/src/stm32/stm32f0xx_hal_conf.h b/src/stm32/stm32f0xx_hal_conf.h
index fc27221..84a3b74 100644
--- a/src/stm32/stm32f0xx_hal_conf.h
+++ b/src/stm32/stm32f0xx_hal_conf.h
@@ -19,16 +19,18 @@
 #define DATA_CACHE_ENABLE 0U
 #define USE_SPI_CRC 0U
 
-#define HAL_RCC_MODULE_ENABLED
 #define HAL_MODULE_ENABLED
-#define HAL_I2C_MODULE_ENABLED
-#define HAL_GPIO_MODULE_ENABLED
-#define HAL_DMA_MODULE_ENABLED
-#define HAL_CORTEX_MODULE_ENABLED
-#define HAL_PWR_MODULE_ENABLED
-#define HAL_FLASH_MODULE_ENABLED
+#define HAL_SPI_MODULE_ENABLED
 #define HAL_TIM_MODULE_ENABLED
 #define HAL_UART_MODULE_ENABLED
+#define HAL_CORTEX_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_EXTI_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+// #define HAL_I2C_MODULE_ENABLED
 
 #ifdef HAL_RCC_MODULE_ENABLED
 #include <stm32f0xx_hal_rcc.h>