make spawn more accurate

assets/maps/map1.map

@@ -783,7 +783,7 @@
 // entity 1
 {
 "classname" "spawn_point"
-"origin" "104 216 -248"
+"origin" "168 216 -248"
 }
 // entity 2
 {

src/tb_entities.rs

@@ -22,23 +22,13 @@ impl SpawnPoint {
             return;
         };
 
-        let this_transform = world
-            .get_entity(entity)
-            .unwrap()
-            .get::<Transform>()
-            .unwrap();
-
-        let mut this_transform = *this_transform;
-        this_transform.translation += Vec3::new(0., -0.3, 0.);
-
         let mesh = assets.mesh_spawn.clone();
 
         world.commands().entity(entity).insert((
-            this_transform,
             Name::new("spawn"),
             SceneRoot(mesh),
             RigidBody::Static,
-            ColliderConstructorHierarchy::new(ColliderConstructor::TrimeshFromMesh),
+            ColliderConstructorHierarchy::new(ColliderConstructor::ConvexHullFromMesh),
         ));
     }
 }