fixed some annoying path edit tool bugs

PCs/PathEditTool/path_edit_tool.gd

@@ -32,13 +32,12 @@ func _ready() -> void:
 
 func _process(delta: float) -> void:
 	if !enabled:
-		ray_collider = null
-		wall_preview.set_visible(false)
+		reset()
 		return
 	
 	if interact_key_held:
 		if !interacted_once:
-			if valid_point and hero.currency >= Data.wall_cost and ray.is_colliding() and point.buildable:
+			if valid_point and hero.currency >= Data.wall_cost and ray_collider and point.buildable:
 				interact_held_time += delta
 				set_progress_percent(interact_held_time / interact_hold_time)
 				wall_preview.set_float(interact_held_time / interact_hold_time)
@@ -46,13 +45,13 @@ func _process(delta: float) -> void:
 					set_progress_percent(0)
 					interacted_once = true
 					build_wall()
-			elif ray.is_colliding() and ray.get_collider() is TowerBase:
+			elif ray_collider is TowerBase:
 				interact_held_time += delta
 				set_progress_percent(interact_held_time / interact_hold_time)
 				if interact_held_time >= interact_hold_time:
 					set_progress_percent(0)
 					interacted_once = true
-					refund_wall(ray.get_collider())
+					refund_wall(ray_collider)
 	else:
 		interact_held_time = 0.0
 		interacted_once = false
@@ -75,7 +74,16 @@ func _process(delta: float) -> void:
 			process_looking_at_tower()
 		elif Game.level:
 			process_looking_at_level()
-	else:
+	elif !interact_key_held:
+		reset()
+	if !valid_point:
+		wall_preview.set_visible(false)
+	if point:
+		wall_preview.global_position = point.global_position
+		wall_preview.global_rotation = Vector3.ZERO
+
+
+func reset() -> void:
 	if is_instance_valid(ray_collider) and ray_collider is TowerBase and Game.level.walls.has(ray_collider.point):
 		Game.level.walls[ray_collider.point].set_float(1.0)
 	ray_collider = null
@@ -83,8 +91,6 @@ func _process(delta: float) -> void:
 	wall_preview.set_visible(false)
 	clear_previous_point()
 	last_point = null
-	if !valid_point:
-		wall_preview.set_visible(false)
 
 
 func process_looking_at_level() -> void:
@@ -97,8 +103,6 @@ func process_looking_at_level() -> void:
 		clear_previous_point()
 		last_point = point
 	else:
-		wall_preview.global_position = point.global_position
-		wall_preview.global_rotation = Vector3.ZERO
 		if last_point != point:
 			clear_previous_point()
 			last_point = point

Scripts/level.gd

@@ -41,8 +41,8 @@ func enable_non_path_tower_frames() -> void:
 
 func disable_path_tower_frames() -> void:
 	for node: FlowNode in tower_frames:
-		if !node.traversable and flow_field.traversable_after_blocking_point(node):
-			tower_frames[node].visible = true
+		if node.traversable and !flow_field.traversable_after_blocking_point(node):
+			tower_frames[node].visible = false
 
 
 func set_wall(point: FlowNode, caller_id: int) -> void:

Scripts/wave_manager.gd

@@ -63,7 +63,7 @@ static func generate_wave(spawn_power: int, spawn_pool: Array[Enemy], spawners:
 				#a different enemy and try this process again
 				var enemy_id: int = spawn_pool.find(new_card.enemy)
 				enemy_id -= 1
-				if enemy_id <= 0:
+				if enemy_id < 0:
 					new_card.enemy = spawn_pool[spawn_pool.size() - 1]
 				else:
 					new_card.enemy = spawn_pool[enemy_id]