Shield wave

scripts/objects/Shield.gd

@@ -8,16 +8,32 @@ class_name Shield
 @export var laser_timer : Timer
 @export var laser_charge_rate : float = 20
 @export var id : String = "startershield"
+
 @onready var ship = get_parent()
 @onready var capacity : float = max_capacity
 var can_recharge : bool = false
 var laser_recharge : bool = true
 
+var wave_distances = [-1,-1,-1,-1,-1,-1,-1,-1,-1,-1]
+var wave_positions = [Vector2.ZERO,Vector2.ZERO,Vector2.ZERO,Vector2.ZERO,Vector2.ZERO,Vector2.ZERO,Vector2.ZERO,Vector2.ZERO,Vector2.ZERO,Vector2.ZERO]
+
 func _ready():
 	recharge_timer.timeout.connect(recharging_timer_out)
 	laser_timer.timeout.connect(laser_timer_out)
 
-func deal_damage(damage : float):
+func deal_damage(damage : float,hit_position : Vector2):
+	# Shield wave
+	var shield_tween = create_tween()
+	var wave_index = find_free_index()
+	shield_tween.tween_method(set_wave_distance.bind(wave_index),0,material.get_shader_parameter("max_distance"),0.5)
+	shield_tween.tween_callback(reset_wave_distance.bind(wave_index))
+	shield_tween.custom_step(0.1)
+	
+	wave_positions[wave_index] = hit_position
+	
+	material.set_shader_parameter("wave_centers",wave_positions)
+	material.set_shader_parameter("wave_distances",wave_distances)
+	
 	capacity -= damage
 	if capacity < 0:
 		ship.hull.hp += capacity
@@ -26,6 +42,20 @@ func deal_damage(damage : float):
 	recharge_timer.start()
 	laser_timer.start()
 
+func set_wave_distance(value,index):
+	wave_distances[index] = value
+	material.set_shader_parameter("wave_distances",wave_distances)
+
+func reset_wave_distance(index):
+	wave_distances[index] = -1
+	material.set_shader_parameter("wave_distances",wave_distances)
+
+func find_free_index() -> int:
+	for i in range(wave_distances.size()):
+		if wave_distances[i] == -1:
+			return i
+	return 0
+
 func recharging_timer_out():
 	can_recharge = true