init

scripts/effects/engines.gd

@@ -0,0 +1,51 @@
+extends Node
+
+@onready var leftEngine: Sprite2D = $MotorIzquierdo
+@onready var rightEngine: Sprite2D = $MotorDerecho
+
+var leftPowerLevel: float
+var currentLeftPowerLevel: float
+var rightPowerLevel: float
+var currentRightPowerLevel: float
+
+@export var leftPowerSprites: Array[Texture2D]
+@export var rightPowerSprites: Array[Texture2D]
+
+@export_range(0, 2) var transitionDelta: float
+
+
+func _transition(curr: float, goal: float, delta: float) -> float:
+	return curr + (goal - curr) * transitionDelta * delta
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	currentLeftPowerLevel = _transition(currentLeftPowerLevel, leftPowerLevel, delta)
+	currentRightPowerLevel = _transition(currentRightPowerLevel, rightPowerLevel, delta)
+	
+	if not leftPowerSprites.is_empty():
+		var index = roundf(currentLeftPowerLevel * leftPowerSprites.size())
+		index = clamp(index, 0, leftPowerSprites.size() - 1)
+		leftEngine.texture = leftPowerSprites[index]
+	if not rightPowerSprites.is_empty():
+		var index = roundf(currentRightPowerLevel * rightPowerSprites.size())
+		index = clamp(index, 0, rightPowerSprites.size() - 1)
+		rightEngine.texture = rightPowerSprites[index]
+
+
+func _change_left_power_level(level: float):
+	leftPowerLevel = level
+
+
+func _change_right_power_level(level: float):
+	rightPowerLevel = level
+
+
+func _on_left_engine_off():
+	_change_left_power_level(0)
+func _on_left_engine_on():
+	_change_left_power_level(1)
+func _on_right_engine_off():
+	_change_right_power_level(0)
+func _on_right_engine_on():
+	_change_right_power_level(1)