simple raycasting mmmmmm

1 files changed, 38 insertions, 1 deletions

diff --git a/src/phys/world.odin b/src/phys/world.odin
index 5207622..b760f51 100644
--- a/src/phys/world.odin
+++ b/src/phys/world.odin
@@ -157,7 +157,40 @@ remove_body :: proc(h: Body_Handle) {
   world.bodies[h.idx] = {}
 }
 
-get_colliding_bodies :: proc(
+get_colliding_bodies :: proc{
+  get_colliding_bodies_body_vs_body,
+  get_colliding_bodies_raycast_vs_body,
+}
+
+get_colliding_bodies_raycast_vs_body :: proc(
+  rc: Raycast,
+  allocator := context.allocator
+) -> []Body_Handle {
+  bodies := make([dynamic]Body_Handle, allocator)
+
+  bin_list := get_surrounding_bins(rc.start)
+
+  for bin in bin_list {
+    for b_h in bin {
+      b := _get_body(b_h)
+
+      if b.layers & rc.mask == nil {
+        continue
+      }
+
+      b_rect := b.rect
+      b_rect.start += b.pos
+
+      if raycast_to_aabb(rc, b^) {
+        append(&bodies, b_h)
+      }
+    }
+  }
+
+  return bodies[:]
+}
+
+get_colliding_bodies_body_vs_body :: proc(
   h: Body_Handle,
   allocator := context.allocator
 ) -> []Body_Handle {
@@ -178,6 +211,10 @@ get_colliding_bodies :: proc(
 
       c := _get_body(c_h)
 
+      if b.mask & c.layers == nil {
+        continue
+      }
+
       c_rect := c.rect
       c_rect.start += c.pos