feat: Introduce special tile power-up system, managing inventory, levels, cooldowns, and targeted effects like area freeze and block floor.

scripts/tekton.gd

@@ -283,6 +283,10 @@ func temporarily_change_floor(center: Vector2i, radius: int, new_id: int, durati
 	for x in range(-radius, radius + 1):
 		for y in range(-radius, radius + 1):
 			var pos = center + Vector2i(x, y)
+			
+			if _is_position_blocked_by_stand(pos):
+				continue
+				
 			if enhanced_gridmap.is_position_valid(pos):
 				var cell_3d = Vector3i(pos.x, 0, pos.y)
 				var original = enhanced_gridmap.get_cell_item(cell_3d)
@@ -355,6 +359,10 @@ func spawn_tiles_around(count: int = 4):
 		# Maybe avoid center.
 		if x == 0 and y == 0: continue
 		
+		# PHYSICS CHECK: Block spawning on Static Stands
+		if _is_position_blocked_by_stand(pos):
+			continue
+		
 		if enhanced_gridmap.is_position_valid(pos):
 			# 50% chance to spawn something
 			if rng.randf() > 0.5: continue
@@ -425,3 +433,24 @@ func play_animation(anim_name: String):
 			print_tree_pretty()
 		else:
 			print("[Tekton] Animation '%s' NOT FOUND in AnimationPlayer!" % anim_name)
+
+func _is_position_blocked_by_stand(target_pos: Vector2i) -> bool:
+	# Raycast check for Static Tekton Stand (Layer 1, Body)
+	# Check CENTER of tile (x+0.5) at LOW height (0.3)
+	var from = Vector3(target_pos.x + 0.5, 0.3, target_pos.y + 0.5) + Vector3.UP * 2.0
+	var to = Vector3(target_pos.x + 0.5, 0.3, target_pos.y + 0.5) + Vector3.DOWN * 2.0
+	
+	# We perform a vertical raycast through the potential stand volume
+	var query = PhysicsRayQueryParameters3D.create(from, to)
+	query.collide_with_areas = false
+	query.collide_with_bodies = true
+	
+	var space_state = get_world_3d().direct_space_state
+	var result = space_state.intersect_ray(query)
+	
+	if result:
+		# If we hit something not ourselves/player, assume it's a stand/blocker
+		if result.collider != self:
+			return true
+			
+	return false