2 files changed, 66 insertions, 0 deletions
diff --git a/include/rodeo/collision.h b/include/rodeo/collision.h
new file mode 100644
index 0000000..9e7b856
--- /dev/null
+++ b/include/rodeo/collision.h
@@ -0,0 +1,35 @@
+
+// -- internal --
+// public
+#include "rodeo/collision_t.h"
+
+rodeo_collision_2d_world_t
+rodeo_collision_2d_world_create(void);
+
+void
+rodeo_collision_2d_world_destroy(void);
+
+cvec_collision_2d_world_item_value*
+rodeo_collision_2d_world_item_create(
+	rodeo_collision_2d_world_t *world,
+	rodeo_collision_2d_world_item_t item_params
+);
+
+void
+rodeo_collision_2d_world_item_destroy(
+	rodeo_collision_2d_world_t *world,
+	cvec_collision_2d_world_item_value* cvec_value
+);
+
+void
+rodeo_collision_2d_world_compare_self(
+	rodeo_collision_2d_world_t *world
+	// resolve function?
+);
+
+void
+rodeo_collision_2d_world_compare_other(
+	rodeo_collision_2d_world_t *world_a,
+	rodeo_collision_2d_world_t *world_b
+	// resolve function?
+);
diff --git a/include/rodeo/collision_t.h b/include/rodeo/collision_t.h
new file mode 100644
index 0000000..e51386c
--- /dev/null
+++ b/include/rodeo/collision_t.h
@@ -0,0 +1,31 @@
+#pragma once
+
+// -- system --
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef
+struct
+{
+	uint32_t id;
+	float x;
+	float y;
+	float dx;
+	float dy;
+	bool is_circle;
+	float width;
+	float height;
+}
+rodeo_collision_2d_world_item_t;
+
+int rodeo_collision_2d_item_cmp(
+	const rodeo_collision_2d_world_item_t* a,
+	const rodeo_collision_2d_world_item_t* b
+);
+
+#define i_val rodeo_collision_2d_world_item_t
+#define i_cmp rodeo_collision_2d_item_cmp
+#define i_type cvec_collision_2d_world_item
+#include "stc/cvec.h"
+
+typedef cvec_collision_2d_world_item rodeo_collision_2d_world_t;