diff --git a/code/core/types.h b/code/core/types.h
index 08436db..a5bc66d 100644
--- a/code/core/types.h
+++ b/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_
diff --git a/code/first.c b/code/first.c
index 3202aea..6d714a8 100644
--- a/code/first.c
+++ b/code/first.c
@@ -3,6 +3,7 @@
 #include <SDL3/SDL.h>
 
 #include "core/core.h"
+#include "core/types.h"
 #include "os/core.h"
 
 #include "vulkan/core.h"
diff --git a/code/game/aabb.h b/code/game/aabb.h
new file mode 100644
index 0000000..060cb53
--- /dev/null
+++ b/code/game/aabb.h
@@ -0,0 +1,17 @@
+#if !defined(LD_CORE_AABB_H_)
+#define LD_CORE_AABB_H_
+#include "types.h"
+#include "../core/macros.h"
+
+
+typedef struct AABB AABB;
+struct AABB {
+  V2f pos;
+  V2f size;
+};
+
+
+function bool AABB_Collide(AABB a, AABB b); 
+function bool AABB_Point(AABB a, V2f v); 
+
+#endif  // LD_CORE_AABB_H_
diff --git a/code/game/impl/aabb.c b/code/game/impl/aabb.c
new file mode 100644
index 0000000..3637513
--- /dev/null
+++ b/code/game/impl/aabb.c
@@ -0,0 +1,15 @@
+#include "../aabb.h"
+#include "../types.h"
+
+bool AABB_Collide(AABB a, AABB b) {
+  bool collision_x = a.pos.x + a.size.x >= b.pos.x && b.pos.x + b.size.x >= a.pos.x;
+  bool collision_y = a.pos.y + a.size.x >= b.pos.y && b.pos.y + b.size.y >= a.pos.y;
+  return collision_x && collision_y;
+}
+
+bool AABB_Point(AABB a, V2f v) {
+  bool collision_x = a.pos.x + a.size.x >= v.x && a.pos.x <= v.x;
+  bool collision_y = a.pos.x + a.size.y >= v.y && a.pos.y <= v.y;
+  return collision_x && collision_y;
+}
+