Implement removing a light from the scene

src/render/light/mod.rs

@@ -71,12 +71,17 @@ impl<U: Default + bytemuck::Pod + bytemuck::Zeroable> LightBuffer<U> {
         }
     }
 
-    pub fn remove_light(&mut self, queue: &wgpu::Queue, entity: edict::EntityId) {
-        todo!() // TODO
-    }
+    /// Remove a caster from the buffer, returns true if it was removed.
+    pub fn remove_light(&mut self, lights_buffer: &mut [U; MAX_LIGHT_COUNT], entity: edict::EntityId) -> bool {
+        if let Some(removed_idx) = self.used_indexes.remove(&entity) {
+            self.dead_indexes.push_back(removed_idx);
+            self.current_count -= 1;
+            lights_buffer[removed_idx] = U::default();
 
-    pub fn prune_dead_lights(&mut self, queue: &wgpu::Queue, entity: edict::EntityId) {
-        todo!() // TODO
+            true
+        } else {
+            false
+        }
     }
 }