checkpoint

1 files changed, 72 insertions, 0 deletions

diff --git a/code/game.h b/code/game.h
new file mode 100644
index 0000000..0678e0b
--- /dev/null
+++ b/code/game.h
@@ -0,0 +1,72 @@
+/* date = October 4th 2025 11:46 am */
+
+#ifndef GAME_H
+#define GAME_H
+
+//- Macro's 
+#define Assert(Expression) do { if(!(Expression)) { *(psize *)((psize)-1) = 0; } } while(0)
+
+//~ Types
+// TODO: figure out how to get those from javascript, because they are going to be different in WASM64
+#include <stddef.h>
+#include <stdint.h>
+typedef int8_t   s8;
+typedef int16_t  s16;
+typedef int32_t  s32;
+typedef uint8_t  u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef float    r32;
+typedef s32      b32;
+typedef u32      rune;
+typedef size_t   psize;
+#define true     1
+#define false    0
+
+#define local_persist static
+#define global static
+#define internal static
+
+struct string
+{
+    psize Count;
+    u8 *Data;
+};
+
+struct memory_arena
+{
+    psize Used;
+    psize Size;
+    void *Base;
+};
+void
+InitializeArena(memory_arena *Arena, psize Size, void *Base)
+{
+    Arena->Size = Size;
+    Arena->Base = (u8 *)Base;
+    Arena->Used = 0;
+}
+
+#define PushStruct(Arena, type) ((type *)PushSize((Arena), (sizeof(type))))
+#define PushArray(Arena, Count, type) (type *)PushSize((Arena), (sizeof(type))*(Count)) 
+void *
+PushSize(memory_arena *Arena, psize Size)
+{
+    Assert((Arena->Used + Size) < Arena->Size);
+    
+    void *Result = ((u8 *)Arena->Base + Arena->Used);
+    Arena->Used += Size;
+    
+    return Result;
+}
+
+struct game_offscreen_buffer
+{
+    u8 *Memory;
+    s32 Width;
+    s32 Height;
+    s32 Pitch;
+    s32 BytesPerPixel;
+};
+
+#endif //GAME_H