Physics I guess

src/rpg/entity/entity.h

@@ -9,6 +9,7 @@
 // #include "direction.h"
 #include "rpg/entity/player.h"
 #include "npc.h"
+#include "physics/physics.h"
 
 typedef struct {
   void (*init)(entity_t *entity);
@@ -25,10 +26,12 @@ typedef enum {
 
 typedef struct entity_s {
   // uint32_t id;// Completely unique ID for this entity.
-  float_t x, y;
   entitytype_t type;
   // direction_t dir;
 
+  vec2 position;
+  vec2 velocity;
+
   union {
     player_t player;
     npc_t npc;