Merge branch 'lonkaars:dev' into dev

19 files changed, 981 insertions, 0 deletions

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/bullet.c b/src/engine/bullet.c
new file mode 100644
index 0000000..5aa9e51
--- /dev/null
+++ b/src/engine/bullet.c
@@ -0,0 +1,44 @@
+#include "bullet.h"
+#include "engine/sprite_controller.h"
+
+
+void shootBullet(vec2 playerPos, Bullet* bullet){
+	// Set bullet's x and y coordinates to player's coordinates
+    bullet->x = playerPos.x;
+    bullet->y = playerPos.y;
+    // Set bullet's velocity to a fixed value
+    bullet->velocity = 1;
+    // Set bullet's status to active
+    bullet->isActive = true;
+}
+void updateBullet(Bullet* bullet, int deltaTime){
+    // Only update bullet if it is active   
+	 static int latestLocationBullet = 0;
+    if (bullet->isActive) {
+        // Move bullet based on velocity and deltaTime
+        bullet->x += bullet->velocity * deltaTime;
+		drawBullet(bullet);
+        // Check if bullet has moved 16 pixels
+        if (bullet->x - latestLocationBullet > 32) {
+            // Set bullet's status to inactive
+            bullet->isActive = false;
+            drawBullet(&(Bullet){.x = -16,.y = -16.    });
+        }
+    }
+	 else{
+		latestLocationBullet = bullet->x;
+	 }
+}
+void drawBullet(Bullet* bullet){
+
+
+	hh_ppu_update_foreground(10, (hh_s_ppu_loc_fam_entry)
+			{
+                .position_x = bullet->x,
+                .position_y = bullet->y,
+				.horizontal_flip = false,
+				.vertical_flip = false,
+				.palette_index = 7,
+				.tilemap_index = 84, // change tilemap to the correct foreground index;
+			});
+}
diff --git a/src/engine/bullet.h b/src/engine/bullet.h
new file mode 100644
index 0000000..ad67d84
--- /dev/null
+++ b/src/engine/bullet.h
@@ -0,0 +1,16 @@
+#pragma once
+#include "player_controller.h"
+
+typedef struct {
+    int x;
+    int y;
+    int velocity;
+    int isActive;
+    int hit;
+} Bullet;
+
+
+//Bullet* createBullet(float x, float y, float velocity, float direction);
+void shootBullet(vec2 playerPos, Bullet* bullet);
+void updateBullet(Bullet* bullet, int deltaTime);
+void drawBullet(Bullet* bullet);
diff --git a/src/engine/camera.c b/src/engine/camera.c
new file mode 100644
index 0000000..2c3e517
--- /dev/null
+++ b/src/engine/camera.c
@@ -0,0 +1,35 @@
+#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: remove magic number at y camera offset
+
+	// new = vec_cen2cor(new,(vec2){.x=max.x/2,.y=max.y/2});
+	new = vec_cen2cor((vec2){.x=new.x+(HH_PPU_SPRITE_WIDTH),.y=new.y+(HH_PPU_SPRITE_HEIGHT*8)},(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;
+
+	// Camera smoothing
+	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..0c31bf6
--- /dev/null
+++ b/src/engine/draw_screen.c
@@ -0,0 +1,89 @@
+#include "engine/draw_screen.h"
+#include "engine/sprite_controller.h"
+
+uint8_t hh_world_to_tile(vec2 pos){
+	//TODO: remove magic file name here
+    FILE* level = fopen("static/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
+	//TODO: remove magic file name here
+	FILE* level = fopen("static/level1_test.bin", "rb"); /* open binary file */
+	if (!level) { /* check if file opened successfully */
+		fprintf(stderr, "Error: Failed to open level 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);
+}
+void hh_clear_screen(){
+	// (HH_PPU_SCREEN_HEIGHT*HH_PPU_SCREEN_WIDTH)/(HH_PPU_SPRITE_HEIGHT*HH_PPU_SPRITE_WIDTH)
+	for (int i = 0; i < HH_PPU_BG_CANVAS_TILES_H*HH_PPU_BG_CANVAS_TILES_V; i++) {
+		hh_s_ppu_loc_bam_entry temp = {
+			.vertical_flip=false,.horizontal_flip = false,
+			.palette_index = 3,.tilemap_index = 0
+		};
+		hh_ppu_update_background(i,temp);
+		hh_ppu_update_color(3,0,(hh_ppu_rgb_color_t){0x0,0x0,0x0});
+	}
+	hh_ppu_update_aux((hh_s_ppu_loc_aux){
+		.bg_shift_x = 0,
+		.bg_shift_y = 0,
+		.fg_fetch	= 0,
+		.sysreset	= 0,
+	});
+}
+
+void hh_clear_sprite(){
+	for (int i = 0; i < HH_PPU_FG_SPRITE_COUNT; i++) {
+		hh_ppu_update_foreground(i,(hh_s_ppu_loc_fam_entry){
+			.position_x = -16,
+			.position_y = -16,
+		});
+	}
+}
diff --git a/src/engine/draw_screen.h b/src/engine/draw_screen.h
new file mode 100644
index 0000000..95765e5
--- /dev/null
+++ b/src/engine/draw_screen.h
@@ -0,0 +1,26 @@
+#pragma once
+
+
+// every function call for drawing the screen goes here.
+#include "engine/maths.h"
+#include "ppu/consts.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();
+/** @brief send black screen to background memory */
+void hh_clear_screen();
+/** @brief clears all sprite data */
+void hh_clear_sprite();
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..535759d
--- /dev/null
+++ b/src/engine/entity.c
@@ -0,0 +1,127 @@
+#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;
+	// } 
+}
+hh_entity hh_background_collision (hh_entity temp_old_entity,hh_entity temp_new_entity){
+
+		temp_old_entity.is_grounded = false;
+ 
+// solves x collision
+	if (temp_old_entity.vel.x <= 0) {
+		if (hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 0, .y=temp_old_entity.pos.y + 0})) || 
+			hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 0, .y=temp_old_entity.pos.y + 15}))) {
+			temp_new_entity.pos.x = (temp_new_entity.pos.x & ~15) + 16,
+			temp_new_entity.vel.x = 0;
+		}
+	} else {
+		if (hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 16, .y=temp_old_entity.pos.y + 0})) || 
+			hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 16, .y=temp_old_entity.pos.y + 15}))) {
+			temp_new_entity.pos.x = temp_new_entity.pos.x & ~15, // <-- magic comma, NOT TOUCHY
+			temp_new_entity.vel.x = 0;
+		}
+	}
+
+	//solves y collision
+	if (temp_old_entity.vel.y <= 0) {
+		if (hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 0, .y=temp_new_entity.pos.y + 0})) || 
+			hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 15, .y=temp_new_entity.pos.y + 0}))) {
+			temp_new_entity.pos.y = (temp_new_entity.pos.y & ~15) + 16,
+			temp_new_entity.vel.y = 0;
+		}
+	} else {
+		if (hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 0, .y=temp_new_entity.pos.y + 15})) || 
+			hh_colidable(hh_world_to_tile((vec2){.x=temp_new_entity.pos.x + 15, .y=temp_new_entity.pos.y + 15}))) {
+			temp_new_entity.pos.y = temp_new_entity.pos.y & ~15,
+			temp_new_entity.vel.y = 0;
+			temp_old_entity.is_grounded = true;
+		}
+	}
+	temp_old_entity.pos = temp_new_entity.pos; 
+	temp_old_entity.vel = temp_new_entity.vel;
+	return temp_old_entity;
+}
+
+hh_entity hh_enemy_collision(hh_entity temp_player, hh_entity temp_enemy){
+	
+	bool collide = hh_distance_circles( temp_player.pos,  temp_enemy.pos, temp_player.radius, temp_enemy.radius);
+
+	if (collide == true && temp_player.is_hit == false)
+	{
+		temp_player.is_hit = true;
+		//angle = atan2( tempEntity.pos_y - tempPlayer.pos_y, tempEntity.pos_x - tempPlayer.pos_x);
+		if(temp_player.pos.x <= temp_enemy.pos.x) //player left of enemy -- creates flinch movement L or R
+		{
+		//	printf("BONK-left!/n");
+			temp_player.vel.y = -5;
+			temp_player.vel.x = -8;
+		}	else {
+		//	printf("BONK-right!/n");
+			temp_player.vel.y = -5;
+			temp_player.vel.x = 8;
+		}
+		// ghost mode / invulnerable or other things on hit
+		//	temp_player.hp--;
+			
+	} else {
+		temp_player.is_hit = false;
+		
+	}
+
+
+return temp_player;
+}
+
+
+bool hh_distance_circles (vec2 object_1, vec2 object_2, int radius_1, int radius_2){
+	int a_squared = (object_1.x - object_2.x) * (object_1.x - object_2.x);
+	int b_squared = (object_1.y - object_2.y) * (object_1.y - object_2.y);
+	int c_squared = a_squared + b_squared; 
+	int radius = ( radius_1 + radius_2) * ( radius_1 + radius_2 );
+
+		if( c_squared <= radius ){
+			return true;
+		} else {
+			return false;
+		}
+}
diff --git a/src/engine/entity.h b/src/engine/entity.h
new file mode 100644
index 0000000..cad6ba4
--- /dev/null
+++ b/src/engine/entity.h
@@ -0,0 +1,82 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdio.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;
+	 bool is_hit;
+	 uint8_t radius;
+    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);
+
+/// @brief solve collision of entity with background tiles
+/// @param temp_old_entity old data of entity 
+/// @param temp_new_entity new data of entity where it wants to go to
+/// @return updated new entity where it actually can go to
+hh_entity hh_background_collision (hh_entity temp_old_entity, hh_entity temp_new_entity);
+
+/// @brief solve collision of player with enemy 
+/// @param temp_player data of player 
+/// @param temp_enemy data of enemy
+/// @return updated player with new stats if hitted with enemy
+hh_entity hh_enemy_collision(hh_entity temp_player, hh_entity temp_enemy);
+
+/// @brief calculate if circles (entity) hit each other 
+/// @param object_1 position of first object (entity)
+/// @param object_2 position of second object (entity)
+/// @param radius_1 radius of first object (entity)
+/// @param radius_2 radius of second object (entity)
+/// @return true if objects collids
+bool hh_distance_circles (vec2 object_1, vec2 object_2, int radius_1, int radius_2);
+
+
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..647b00c
--- /dev/null
+++ b/src/engine/player_controller.c
@@ -0,0 +1,252 @@
+#include "ppu/types.h"
+#include "engine/camera.h"
+#include "engine/draw_screen.h"
+#include "engine/sprite_controller.h"
+#include "engine/player_controller.h"
+
+#include "input.h"
+
+#include "engine/bullet.h"
+void hh_player_actions() {
+	static Bullet bullet ={
+		.isActive=false,
+	};
+	static hh_entity player={
+		.hp = 4,
+		.speed = 6,
+		.is_grounded = false,
+		.is_hit = false,
+		.radius = 8,
+		.pos = (vec2){32,32},
+		.vel = (vec2){0,0},
+		.vec = (vec2){0,0},
+		.render = {
+			.frame0 = 80,
+			.palette = 3,
+			.fam = (hh_s_ppu_loc_fam_entry){
+				.horizontal_flip = false,
+				.vertical_flip = false,
+				.palette_index = 2,
+				.tilemap_index = 60,
+			}
+		}
+	}, player_new = {0};
+
+
+	static hh_entity enemy={
+		.hp = 4,
+		.speed = 6,
+		.is_grounded = false,
+		.is_hit = false,
+		.radius = 8,
+		.pos = (vec2){128,48},
+		.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 = 1,
+			}
+		}
+	};
+	player_new = player;
+	// hh_input_read();
+	static uint8_t hit = 0;
+	int8_t hit_timer = 0;
+	int8_t direction_x = (-1 * g_hh_controller_p1.dpad_left) + (1 * g_hh_controller_p1.dpad_right);
+	int8_t direction_y = (-1 * g_hh_controller_p1.dpad_up) + (1 * g_hh_controller_p1.dpad_down);
+
+	if(player.is_hit == true){
+		hit_timer = 9;
+		player.is_hit = false;	
+	} 
+	if(hit_timer > -10){
+			hit_timer--;
+	}
+
+	if(hit_timer <= 0){
+		if(direction_x != 0){
+			if(player.vel.x > -1 * player.speed && player.vel.x < player.speed) {
+				player.vel.x = player.vel.x + direction_x;
+			} else {
+				if (player.vel.x > 0) {
+					player.vel.x--;
+				} else if(player.vel.x < 0) {
+					player.vel.x++; 
+				}
+			}
+		} else {
+			if (player.vel.x > 0) {
+				player.vel.x--;
+			} else if(player.vel.x < 0) {
+			player.vel.x++; 
+			}
+		}
+		
+		/* // movement Y (w-s) disable gravity to use this
+		if(direction_y != 0){
+			if(player.vel.y > -4 && player.vel.y < 4 ) {
+				player.vel.y =  player.vel.y + direction_y;
+			}
+		} else {
+			if (player.vel.y > 0) {
+				player.vel.y--;
+			} else if(player.vel.y < 0) {
+				player.vel.y++; 
+			}
+		}		
+		
+		*/
+	} else {
+		if (player.vel.x > 0) {
+			player.vel.x--;
+		} else if(player.vel.x < 0) {
+			player.vel.x++; 
+		}
+			player.vel.y++;
+	}
+	
+
+	if (g_hh_controller_p1.button_primary && player.is_grounded == true) {//JUMP
+	 	player.vel.y = -10;
+		player.is_grounded = false;
+	} else if (player.vel.y < 6){
+		 player.vel.y += 1; //gravity
+	}
+
+	if(g_hh_controller_p1.button_secondary==true){
+		shootBullet(player.pos,&bullet);
+	}
+	updateBullet(&bullet,5);
+
+
+	
+/*
+	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) };
+
+		player_new.vel = (vec2){
+		.x = player.vel.x,
+		.y = player.vel.y,
+	};
+*/
+
+		player_new.vel = (vec2){
+		.x = player.vel.x,
+		.y = player.vel.y,
+	};
+
+		player_new = hh_enemy_collision(player, enemy);
+	
+	
+	// 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.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_new.vel.x,
+		.y = player.pos.y + player_new.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 =  hh_background_collision ( player, player_new);
+	
+	//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);
+
+	enemy.render.fam.position_x = (enemy.pos.x-cam_pos.x);
+	enemy.render.fam.position_y = (enemy.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);
+
+	for (int i = 0; i < 4; i++)
+	{
+		hh_s_ppu_loc_fam_entry temp = player.render.fam;
+		temp.position_x = player.render.fam.position_x+(!(player.vel.x>0)?-1:1)*(i%2?8:-8);
+		temp.position_y = player.render.fam.position_y+(i>1?0:-16);
+		temp.tilemap_index = player.render.frame0 + i;
+		temp.palette_index = player.render.palette;
+		temp.horizontal_flip = !(player.vel.x>0);
+		hh_ppu_update_foreground(i,temp);
+	}
+	
+
+
+	hh_ppu_update_foreground(4, enemy.render.fam);
+
+}
+
+
+
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..b38b647
--- /dev/null
+++ b/src/engine/sprite_controller.c
@@ -0,0 +1,24 @@
+#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(){
+	//TODO: use simpler function
+	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]);
+		}
+	}
+	// hh_ppu_update_palette_table(hh_g_palette);
+}
+
+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..fc6d3d3
--- /dev/null
+++ b/src/engine/sprite_controller.h
@@ -0,0 +1,118 @@
+#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 80
+#define HH_PAL_IDX_SKY 512
+#define HH_PAL_IDX_BRICK 1
+const static uint8_t hh_g_sprite_palette[HH_SPRITE_COUNT] = {
+	//TODO: make a buffer of 16 no-collider sprites (instead of the current 1)
+	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,
+	7,7,7,7, //?? 
+
+	7,6,6,6,6,6,6,6, //baskets
+	7,7,7,7,7,7,7,7,7,7, //shop
+	7,7,7,7,7, //shop
+	6,6,6,6,6, //(hi-)score
+	
+	3,3,3,3,3,3, //title_screen icon
+	6,6,6,6,/*6,6,6,6,6,6, //title_screen large letters
+	6,6,6,6,*/
+	//other palettes here:
+	// [HH_PAL_IDX_SKY] = 0,
+};
+
+
+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}},
+	{//player //TODO: use one less color && update player indexed sprites
+		{0x0,0x0,0x0},
+		{0x1,0x1,0x1},
+		{0x4,0x2,0x5},
+		{0x7,0x3,0x7},
+		{0xe,0xe,0xe}, 
+		{0xe,0xe,0xe}, //elemental
+		{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}},
+	{//elemental
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0},
+		{0x0,0x0,0x0}},
+	{//white
+		{0x1,0x2,0x3},
+		{0xf,0xf,0xf},
+		{0xf,0xf,0xf},
+		{0xf,0xf,0xf},
+		{0xf,0xf,0xf},
+		{0xf,0xf,0xf},
+		{0xf,0xf,0xf},
+		{0xf,0xf,0xf}},
+	{//Dev palette (7)
+		{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/engine/title_screen.c b/src/engine/title_screen.c
new file mode 100644
index 0000000..9c7ed48
--- /dev/null
+++ b/src/engine/title_screen.c
@@ -0,0 +1,93 @@
+#include "ppu/ppu.h"
+#include "ppu/types.h"
+#include "ppu/consts.h"
+
+
+#include "engine/draw_screen.h"
+#include "engine/entity.h"
+
+void hh_init_title_screen(){
+
+	// hh_clear_screen();
+
+	//send data
+	uint8_t idx = 0;
+	const uint8_t tilemap_offset = 59;
+	int tiles_h = HH_PPU_BG_CANVAS_TILES_H;
+	int vp_h = HH_PPU_SCREEN_WIDTH/HH_PPU_SPRITE_WIDTH; //screen_h in tiles
+	int vert_offset = tiles_h*3;
+
+	const uint8_t arr[4][4] = {
+		{0,1,1,0},
+		{2,3,3,2},
+		{4,0,0,4},
+		{5,6,6,5},
+	};
+	int val, counter =0;
+	hh_ppu_update_color(5, 0, (hh_ppu_rgb_color_t) {0x1, 0x1, 0x1});
+	for (int i = 0; i < 4; i++) {
+		for (int j = 0; j < 4; j++) {
+			val = arr[i][j];
+
+			hh_s_ppu_loc_bam_entry temp = {
+			.vertical_flip=false, .horizontal_flip = ((j % 4 < 2) ? false : true),
+			.palette_index = (counter == 9 || counter == 10? 5:3), .tilemap_index = (val > 0 ? (tilemap_offset + val) : 0)
+			};
+
+			int vert_pos = tiles_h*i;
+			int x_pos = j;
+			idx = vert_offset + vert_pos + x_pos + vp_h/2-2;
+			
+			hh_ppu_update_background(idx,temp);
+			counter++;
+		}
+
+	}
+	
+
+	const uint8_t letters_offset = 66;
+	const int _size_hooded = 7, _size_v = 2;
+
+	// char* hh = "hooded";
+	int hooded_lookup[7][2]={
+		{0,1},{0,2},//H
+		{3,4},{3,4},//oo
+		{5,6},{13,9},//de
+		{5,6}//d
+	};
+
+	counter = 8;
+	for (int i = 0; i < _size_hooded; i++) {
+		for (int vert = 1; vert <= _size_v; vert++) {
+			//TODO: move 'H' a few pixels to the right for a more cohesive font spacing
+			hh_ppu_update_foreground(counter++, (hh_s_ppu_loc_fam_entry) {
+				.vertical_flip = false, .horizontal_flip = false,
+				.palette_index = 6, .tilemap_index = letters_offset + hooded_lookup[i][vert-1],
+				.position_x = (16*i + 64+48), .position_y = (16*(vert > 1 ? 0:1)*-1 + 64+8+16 +(i==2 || i==3 ? 6:0))
+			});	
+		}
+	}
+
+
+	hh_ppu_update_color(5, 1, (hh_ppu_rgb_color_t) {0xa, 0x3, 0x3});
+	hh_ppu_update_color(5, 2, (hh_ppu_rgb_color_t) {0xc, 0x5, 0x3});
+
+	const int _size_havoc = 6;
+	int lookup_havoc[6][2]={
+		{0,1},{0,2},//H
+		{13,10},{7,8},//av
+		{13,11},{13,12}//oc
+	};
+
+	counter = 8 + (_size_hooded * _size_v);
+	for (int i = 0; i < _size_havoc; i++) {
+		for (int vert = 1; vert <= _size_v; vert++) {
+			//TODO: move 'H' a few pixels to the right for a more cohesive font spacing
+			hh_ppu_update_foreground(counter++, (hh_s_ppu_loc_fam_entry) {
+				.vertical_flip = false, .horizontal_flip = (i > 4 && vert==0 ? 1:0),
+				.palette_index = 5, .tilemap_index = letters_offset + lookup_havoc[i][vert-1],
+				.position_x = (16*i +64+32+8), .position_y = (16*(vert > 1 ? 0:1)*-1 + 64+8+48)
+			});	
+		}
+	}
+}
diff --git a/src/engine/title_screen.h b/src/engine/title_screen.h
new file mode 100644
index 0000000..b5eda63
--- /dev/null
+++ b/src/engine/title_screen.h
@@ -0,0 +1,3 @@
+#pragma once
+
+void hh_init_title_screen();