implemented simple spritesheet

code/games/survival/src/main.c

@@ -43,7 +43,7 @@ void mob_systems(ecs_world_t *ecs) {
 	ECS_SYSTEM_TICKED_EX(ecs, MobDetectPlayers, EcsPostUpdate, 100.0f, components.Position, components.Mob);
 	ECS_SYSTEM(ecs, MobMovement, EcsPostUpdate, components.Velocity, components.Position, components.MobHuntPlayer);
 	ECS_SYSTEM_TICKED(ecs, MobMeleeAtk, EcsPostUpdate, components.Position, components.Mob, components.MobHuntPlayer, components.MobMelee);
-	ECS_OBSERVER(ecs, MobDetectPlayers1, EcsOnAdd, components.Mob);
+	//ECS_OBSERVER(ecs, MobDetectPlayers1, EcsOnAdd, components.Mob);
 }
 
 int main(int argc, char** argv) {

code/games/survival/src/platform.c

@@ -91,6 +91,44 @@ void platform_input() {
     }
 }
 
+void debug_draw_spritesheet() {
+    if (nk_begin(game_ui, "Spritesheet debug", nk_rect(660, 100, 240, 800),
+	             NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE| NK_WINDOW_TITLE))
+	{
+        nk_layout_row_dynamic(game_ui, 0, 1);
+
+        static int spritesheet_frame_id = 0;
+        if(nk_button_label(game_ui, "Prev")){
+            spritesheet_frame_id-=10;
+        }
+        
+        if(nk_button_label(game_ui, "Next")){
+            spritesheet_frame_id+=10;
+        }
+
+        static bool loaded = false; 
+        static struct nk_image nuclear_image;
+        if (!loaded) {
+            nuclear_image = TextureToNuklear(main_sprite_sheet.texture);
+        }
+        
+        nk_layout_row_static(game_ui, 32, 32, 6);
+        for(size_t i = 0; i < 10; i++) {
+            int frame = spritesheet_frame_id + i;
+            float ox = (frame % main_sprite_sheet.framesWide) * main_sprite_sheet.frameSize.x;
+            float oy = (int)(frame / main_sprite_sheet.framesWide) * main_sprite_sheet.frameSize.y;
+            nuclear_image.region[0] = (nk_short)ox;
+            nuclear_image.region[1] = (nk_short)oy;
+            nuclear_image.region[2] = 32;
+            nuclear_image.region[3] = 32;
+            nk_image(game_ui, nuclear_image);
+            nk_labelf(game_ui, NK_TEXT_ALIGN_LEFT, "%d", frame);
+        }
+
+		nk_end(game_ui);
+	}
+}
+
 void platform_render() {
     platform_resize_window();
 
@@ -120,6 +158,7 @@ void platform_render() {
 		renderer_debug_draw();
 
         debug_draw();
+        debug_draw_spritesheet();
 		notification_draw();
 		game_draw_ui();
     }

code/games/survival/src/renderer.c

@@ -1,6 +1,10 @@
+#include "spritesheet.c"
+
 static Camera2D render_camera;
 static float zoom_overlay_tran = 0.0f;
 
+static SpriteSheet main_sprite_sheet = { 0 }; 
+
 #define CAM_OVERLAY_ZOOM_LEVEL 0.15f
 #define ALPHA(x) ColorAlpha(x, data->tran_time)
 
@@ -89,8 +93,9 @@ void renderer_draw_entry(uint64_t key, entity_view *data, game_world_render_entr
             float y = data->y;
             float health = (data->hp / data->max_hp);
             DrawNametag("Player", key, data, x, y-16);
-			DrawTextureRec(GetSpriteTexture2D(assets_find(ASSET_PLAYER)), ASSET_SRC_RECT(), (Vector2){data->x-(WORLD_BLOCK_SIZE/2), data->y-(WORLD_BLOCK_SIZE/2)}, ColorAlpha(WHITE, data->tran_time));
+			//DrawTextureRec(GetSpriteTexture2D(assets_find(ASSET_PLAYER)), ASSET_SRC_RECT(), (Vector2){data->x-(WORLD_BLOCK_SIZE/2), data->y-(WORLD_BLOCK_SIZE/2)}, ColorAlpha(WHITE, data->tran_time));
 			//DrawCircleEco(x, y, size, ColorAlpha(YELLOW, data->tran_time));
+            sprite_draw(&main_sprite_sheet, 129, x, y, 0.0f, 2.0f, WHITE);
 
             //if (data->has_items && !data->inside_vehicle) {
             //    float ix = data->x;
@@ -131,8 +136,7 @@ void renderer_draw(void) {
     ClearBackground(GetColor(0x222034));
     BeginMode2D(render_camera);
 
-    game_world_view_render_world();
-	
+    game_world_view_render_world();	
     EndMode2D();
 }
 
@@ -159,6 +163,12 @@ void renderer_init(void) {
 
     blocks_setup();
     assets_setup();
+
+    // NOTE(DavoSK): Init others spritesheets here
+    main_sprite_sheet.texture = LoadTexture("art/gen/spritesheet.png");
+    main_sprite_sheet.frameSize = (Vector2){ 32, 32 };
+    main_sprite_sheet.framesWide = 64;
+    main_sprite_sheet.origin = (Vector2){ 16, 16 };
 }
 
 void renderer_shutdown(void) {

code/games/survival/src/spritesheet.c

@@ -0,0 +1,18 @@
+typedef struct {
+    Texture2D texture;
+    Vector2 frameSize;
+    int framesWide;
+    Vector2 origin;
+} SpriteSheet;
+
+// enum {
+//     SPRITE_PLAYER =  
+// };
+
+void sprite_draw(SpriteSheet* sprite, int frame, float x, float y, float ang, float scale, Color c) {
+    float ox = (frame % sprite->framesWide) * sprite->frameSize.x;
+    float oy = (int)(frame / sprite->framesWide) * sprite->frameSize.y;
+    DrawTexturePro(sprite->texture, (Rectangle){ox, oy, sprite->frameSize.x,sprite->frameSize.y}, 
+                                    (Rectangle){x, y, sprite->frameSize.x * scale, sprite->frameSize.y * scale}, 
+                                    (Vector2){sprite->origin.x * scale, sprite->origin.y * scale}, ang, c);
+}

code/vendors/raylib-nuklear/include/raylib-nuklear.h

@@ -542,6 +542,11 @@ DrawNuklear(struct nk_context * ctx)
                 Rectangle dest = {(float)i->x * scale, (float)i->y * scale, (float)i->w * scale, (float)i->h * scale};
                 Vector2 origin = {0, 0};
                 Color tint = ColorFromNuklear(i->col);
+
+                if(i->img.region[0] || i->img.region[1] || i->img.region[2] || i->img.region[3]) {
+                    source = (Rectangle){(float)i->img.region[0], (float)i->img.region[1], (float)i->img.region[2], (float)i->img.region[3]};
+                }
+                
                 DrawTexturePro(texture, source, dest, origin, 0, tint);
             } break;