camera, movement, collisions

13 files changed, 77 insertions, 37 deletions

diff --git a/src/engine/TODO/player_controller.h b/src/engine/TODO/player_controller.h
deleted file mode 100644
index 1e9b86c..0000000
--- a/src/engine/TODO/player_controller.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#include "maths.h"
-#include "hh_entity.h"
-
-// inputs
diff --git a/src/engine/camera.c b/src/engine/camera.c
index 46c2d93..e756bd4 100644
--- a/src/engine/camera.c
+++ b/src/engine/camera.c
@@ -5,8 +5,26 @@
 
 vec_cor hh_update_camera(vec_cen new, vec2 min, vec2 max){
 
-	new = vec_cen2cor(new,(vec2){.x=20,.y=30});
+	//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);
diff --git a/src/engine/draw_screen.c b/src/engine/draw_screen.c
index 0295241..c4f3389 100644
--- a/src/engine/draw_screen.c
+++ b/src/engine/draw_screen.c
@@ -3,20 +3,20 @@
 
 uint8_t hh_world_to_tile(vec2 pos){
 	
-    FILE* level = fopen("../test/bin/test_map.bin", "rb"); /* open binary file */
+    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 + pos.x);
+	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
+	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 val;
+	// int val = tile;
+	// free(tile);
+	return tile;
 }
 
 
@@ -26,8 +26,8 @@ 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*HH_PPU_SPRITE_WIDTH,
-		.bg_shift_y = viewport.y*HH_PPU_SPRITE_HEIGHT,
+		.bg_shift_x = viewport.x,
+		.bg_shift_y = viewport.y,
 		.fg_fetch	= 0,
 		.sysreset	= 0,
 	});
diff --git a/src/engine/entity.c b/src/engine/entity.c
index 1dc1df8..152cf1d 100644
--- a/src/engine/entity.c
+++ b/src/engine/entity.c
@@ -1,6 +1,6 @@
 #include <stdbool.h>
 
-#include "engine/hh_entity.h"
+#include "engine/entity.h"
 #include "engine/maths.h"
 
 /*
@@ -12,30 +12,35 @@
 
 */
 
-bool hh_collision(vec2* pos1, vec2* pos2){
-    if (pos2->x == CLAMP(pos2->x,pos1->x,pos1->x+1.0f)){// hit 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+0.99f)){// hit y
+    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 (entity->vec.x > 0.0f){
-        entity->pos.x = MIN(entity->pos.x,pos_environment->x-1.0f);
-        entity->vec.x = 0.0f;
-    } else if (entity->vec.x < 0.0f){
-        entity->pos.x = MAX(entity->pos.x,pos_environment->x+1.0f);
-        entity->vec.x = 0.0f;
-    } else if (entity->vec.y > 0.0f){
-        entity->pos.x = MIN(entity->pos.x,pos_environment->x-1.0f);
-        entity->vec.x = 0.0f;
-    } else if (entity->vec.y < 0.0f){
-        entity->pos.x = MAX(entity->pos.x,pos_environment->x+1.0f);
-        entity->vec.x = 0.0f;
-    }
+void hh_solve_collision(vec2 pos_environment, hh_entity* entity){
+	if (!hh_collision(pos_environment,entity->pos))
+		return;
+
+	printf("BONK!/n");
+	// if (entity->vec.y > 0){
+	// 	entity->pos.y = MAX(entity->pos.y,pos_environment.y);
+	// 	entity->vec.y = 0;
+	// } else {
+	// 	entity->pos.y = MIN(entity->pos.y,pos_environment.y);
+	// 	entity->vec.y = 0;
+	// }
+	// if (entity->vec.x <= 0){
+	// 	entity->pos.x = MIN(entity->pos.x,pos_environment.x-16);
+	// 	entity->vec.x = 0;
+	// } else {
+	// 	entity->pos.x = MAX(entity->pos.x,pos_environment.x+16);
+	// 	entity->vec.x = 0;
+	// } 
 }
 
diff --git a/src/engine/entity.h b/src/engine/entity.h
index b2a0c49..dee4aed 100644
--- a/src/engine/entity.h
+++ b/src/engine/entity.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <stdint.h>
+#include <stdbool.h>
 
 #include "engine/maths.h"
 
@@ -8,6 +9,7 @@ typedef struct {
     vec2 pos, vec;
     bool is_grounded;
     int8_t hp;
+    int8_t speed;
     //armor/block?
 }hh_entity;
 
@@ -15,10 +17,10 @@ typedef struct {
 /// @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);
+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);
+void hh_solve_collision(vec2 pos_environment, hh_entity* entity);
diff --git a/src/engine/maths.c b/src/engine/maths.c
index ebd699c..475bba2 100644
--- a/src/engine/maths.c
+++ b/src/engine/maths.c
@@ -1,5 +1,9 @@
 #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,
diff --git a/src/engine/maths.h b/src/engine/maths.h
index bd20202..bef287e 100644
--- a/src/engine/maths.h
+++ b/src/engine/maths.h
@@ -3,12 +3,14 @@
 // #include <math.h>
 
 typedef struct {
-    uint32_t x,y;
+	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);
 
diff --git a/src/engine/player_controller.c b/src/engine/player_controller.c
new file mode 100644
index 0000000..27e522e
--- /dev/null
+++ b/src/engine/player_controller.c
@@ -0,0 +1 @@
+#include "engine/player_controller.h"
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
index d4c44ab..5d93cf8 100644
--- a/src/engine/sprite_controller.c
+++ b/src/engine/sprite_controller.c
@@ -1,7 +1,6 @@
 #include <stdint.h>
 
 #include "engine/sprite_controller.h"
-// #include "engine/maths.h"
 #include "ppu/types.h"
 #include "ppu/consts.h"
 #include "ppu/ppu.h"
@@ -17,3 +16,7 @@ void hh_setup_palettes(){
 		}
 	}	
 }
+
+bool hh_colidable(uint8_t tile_idx){
+	return (hh_get_palette(tile_idx) != 0);
+}
diff --git a/src/makefile b/src/makefile
index 142d918..d7d9087 100644
--- a/src/makefile
+++ b/src/makefile
@@ -33,6 +33,7 @@ LOCAL_SRCS += main.c \
 							demo.c \
 							engine/engine.c \
 							engine/sprite_controller.c \
+							engine/player_controller.c \
 							engine/draw_screen.c \
 							engine/camera.c \
 							engine/maths.c \
diff --git a/src/ppusim/input.c b/src/ppusim/input.c
index 08bc382..5323fb1 100644
--- a/src/ppusim/input.c
+++ b/src/ppusim/input.c
@@ -12,4 +12,5 @@ void hh_input_read() {
 	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/sim.c b/src/ppusim/sim.c
index 1e7e609..a5fec45 100644
--- a/src/ppusim/sim.c
+++ b/src/ppusim/sim.c
@@ -32,7 +32,7 @@ void hh_ppu_load_tilemap() {
 	char* filename = "../test/bin/tiles.bin";
 	FILE* fp = fopen(filename,"rb");
 	if (!fp){
-		fprintf(stderr,"File error!");
+		fprintf(stderr,"Error: Failed to load tiles.");
 		return;//error
 	}
 	int sprite_size = (HH_PPU_SPRITE_WIDTH * HH_PPU_SPRITE_HEIGHT);