diff --git a/engine/collisions.c b/engine/collisions.c
index 1de0994..75d12e6 100644
--- a/engine/collisions.c
+++ b/engine/collisions.c
@@ -173,9 +173,9 @@ uint8_t check_collision_offset(Entity_t* p_ent, Vector2 pos, Vector2 bbox_sz, Ti
     return check_collision(&ent, grid, false);
 }
 
-bool check_on_ground(Entity_t* p_ent, Vector2 pos, Vector2 prev_pos, Vector2 bbox_sz, TileGrid_t* grid)
+bool check_on_ground(Entity_t* p_ent, Vector2 prev_pos, Vector2 bbox_sz, TileGrid_t* grid)
 {
-    Vector2 new_pos = Vector2Add(pos, (Vector2){0, 1});
+    Vector2 new_pos = Vector2Add(p_ent->position, (Vector2){0, 1});
     CollideEntity_t ent = {
         .p_ent = p_ent,
         .bbox = (Rectangle){new_pos.x, new_pos.y + bbox_sz.y, bbox_sz.x, 1},
@@ -193,12 +193,13 @@ bool check_on_ground(Entity_t* p_ent, Vector2 pos, Vector2 prev_pos, Vector2 bbo
 
 uint8_t check_bbox_edges(
     TileGrid_t* tilemap,
-    Entity_t* p_ent, Vector2 pos, Vector2 bbox,
+    Entity_t* p_ent, Vector2 bbox,
     bool ignore_fragile
 )
 {
     uint8_t detected = 0;
 
+    Vector2 pos = p_ent->position;
     // Too lazy to adjust the tile area to check, so just make a big one
     CollideEntity_t ent = 
     {
diff --git a/engine/collisions.h b/engine/collisions.h
index ca4368e..f8629f8 100644
--- a/engine/collisions.h
+++ b/engine/collisions.h
@@ -60,6 +60,6 @@ void remove_entity_from_tilemap(EntityManager_t *p_manager, TileGrid_t* tilemap,
 uint8_t check_collision(const CollideEntity_t* ent, TileGrid_t* grid, bool check_oneway);
 uint8_t check_collision_line(const CollideEntity_t* ent, TileGrid_t* grid, bool check_oneway);
 uint8_t check_collision_offset(Entity_t* p_ent, Vector2 pos, Vector2 bbox_sz, TileGrid_t* grid, Vector2 offset);
-bool check_on_ground(Entity_t* p_ent, Vector2 pos, Vector2 prev_pos, Vector2 bbox_sz, TileGrid_t* grid);
-uint8_t check_bbox_edges(TileGrid_t* tilemap, Entity_t* p_ent, Vector2 pos, Vector2 bbox, bool ignore_fragile);
+bool check_on_ground(Entity_t* p_ent, Vector2 prev_pos, Vector2 bbox_sz, TileGrid_t* grid);
+uint8_t check_bbox_edges(TileGrid_t* tilemap, Entity_t* p_ent, Vector2 bbox, bool ignore_fragile);
 #endif // __COLLISION_FUNCS_H
diff --git a/scenes/game_systems.c b/scenes/game_systems.c
index b89c994..7dca325 100644
--- a/scenes/game_systems.c
+++ b/scenes/game_systems.c
@@ -591,7 +591,7 @@ void player_crushing_system(Scene_t* scene)
 
         uint8_t edges = check_bbox_edges(
             &data->tilemap, p_player,
-            p_player->position, p_bbox->size, true
+            p_bbox->size, true
         );
 
         // There is a second check for to ensure that there is an solid entity/tile overlapping the player bbox
@@ -829,7 +829,7 @@ void edge_velocity_check_system(Scene_t* scene)
         // Post movement edge check to zero out velocity
         uint8_t edges = check_bbox_edges(
             &data->tilemap, p_ent,
-            p_ent->position, p_bbox->size, false
+            p_bbox->size, false
         );
         if (edges & (1<<3))
         {
@@ -963,7 +963,7 @@ void global_external_forces_system(Scene_t* scene)
         // Zero out acceleration for contacts with sturdy entites and tiles
         uint8_t edges = check_bbox_edges(
             &data->tilemap, p_ent,
-            p_ent->position, p_bbox->size, false
+            p_bbox->size, false
         );
         if (edges & (1<<3))
         {
@@ -1406,7 +1406,7 @@ void state_transition_update_system(Scene_t* scene)
         else if (p_ctransform->velocity.x < 0) p_mstate->x_dir = 0;
 
         bool on_ground = check_on_ground(
-            p_ent, p_ent->position, p_ctransform->prev_position, p_bbox->size,
+            p_ent, p_ctransform->prev_position, p_bbox->size,
             &data->tilemap
         );