feat: collision functions added

code/core/types.h

@@ -29,4 +29,16 @@ struct Str8 {
 	U8 *data;
 };
 
+typedef struct V2f V2f;
+struct V2f {
+  F32 x;
+  F32 y;
+};
+
+typedef struct V2i V2i;
+struct V2i {
+  U32 x;
+  U32 y;
+};
+
 #endif  // LD_CORE_TYPES_H_