Hit detection not working, but not horribly broken either... somewhere in between.

src/bin/tetris/main.rs

@@ -92,6 +92,10 @@ struct BlockOf {
     parent: Entity,
 }
 
+// Just marks a block either of a shape or line
+#[derive(Component, Debug)]
+struct Block;
+
 #[derive(Component, Debug)]
 #[require(GridPosition)]
 struct RelativePosition {
@@ -454,7 +458,7 @@ fn set_piece(
                 .entity(e)
                 .with_related_entities::<BlockOf>(|parent| {
                     positions.into_iter().for_each(|rp| {
-                        parent.spawn((Mesh2d(mesh.clone()), MeshMaterial2d(mat.clone()), rp));
+                        parent.spawn((Mesh2d(mesh.clone()), MeshMaterial2d(mat.clone()), rp, Block));
                     });
                 });
         } else {
@@ -569,9 +573,9 @@ fn clock_cycle(n: f32) -> impl FnMut(Res<Time>, Local<f32>) -> bool {
 
 /// Check if the active piece is about to collide with the ground
 fn check_collision(
-    active: Query<(&GridPosition, Entity), With<RelativePosition>>,
+    active: Query<(&GridPosition, Entity), (With<Block>, With<RelativePosition>)>,
-    shape: Single<Entity, With<Shape>>,
+    shape: Single<(Entity, &GridPosition), With<ShapeBlocks>>,
-    inactive: Query<&GridPosition, Without<RelativePosition>>,
+    inactive: Query<&GridPosition, (With<Block>, Without<RelativePosition>)>,
     mut commands: Commands,
 ) {
     // TODO: Easy optimizations
@@ -582,13 +586,17 @@ fn check_collision(
         // Check if active peice is near other blocks
         let hit_block = inactive.iter().any(|b| {
             debug!("Checking against: {:?}", b);
-            a.is_colliding_with(b)
+            if a.is_colliding_with(b) {
+                info!("{:?} is colliding with {:?}", a, b);
+                true
+            } else { false }
+
         });
 
         hit_floor || hit_block
     });
 
-    if false {
+    if hit {
         info!("hit detected!");
 
         let blocks: Vec<Entity> = active
@@ -599,8 +607,9 @@ fn check_collision(
         debug_assert_eq!(blocks.len(), 4, "Shapes should have 4 blocks");
 
         info!("De-relating blocks {:?} and shape {:?}", blocks, *shape);
+        let (shape_e, _shape_pos) = *shape;
         commands
-            .entity(*shape)
+            .entity(shape_e)
             .remove_related::<BlockOf>(blocks.as_slice())
             .despawn();
     }