init

scripts/rocket.gd

@@ -0,0 +1,74 @@
+extends CharacterBody2D
+class_name Rocket
+
+@onready var camera := %Camera2D
+@onready var sprite := %Sprite2D
+@onready var gpu_particles_2d_middle := $GPUParticles2DMiddle
+@onready var gpu_particles_2d_top := $GPUParticles2DTop
+@onready var gpu_particles_2d_bottom := $GPUParticles2DBottom
+
+var is_ejecting = false
+
+func _ready() -> void:
+	DataHandler.current_rocket = self
+	#velocity = DataHandler.initial_velocity()
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _physics_process(delta: float) -> void:
+	if Input.is_action_just_pressed("eject"):
+		_handle_eject()
+	
+	var move_stick: Vector2 = Input.get_vector("move_left", "move_right", "move_up", "move_down")
+	
+	if DataHandler.has_fuel() and move_stick:
+		var new_velocity := velocity.lerp(move_stick * delta * DataHandler.get_speed(), DataHandler.get_maneuverability())
+		var velocity_change := velocity - new_velocity
+		velocity = new_velocity
+		DataHandler.add_fuel(velocity_change.length() / -5.0, true)
+		rotation = velocity.angle()
+		_set_particles(velocity_change.length())
+	else:
+		_stop_particles()
+	
+	var collisions := move_and_slide()
+	if collisions:
+		for i in get_slide_collision_count():
+			var collision := get_slide_collision(i)
+			var collider := collision.get_collider()
+			if collider.is_in_group("pickups"):
+				collider.pickup(self)
+			else:
+				if DataHandler.has_fuel():
+					DataHandler.add_fuel(-5 * delta)
+				else:
+					_handle_eject()
+
+	
+	#fuel -= velocity.length() / 900.0
+	
+func _stop_particles() -> void:
+	gpu_particles_2d_bottom.emitting = false
+	gpu_particles_2d_middle.emitting = false
+	gpu_particles_2d_top.emitting = false
+	
+func _set_particles(intensity: float) -> void:
+	gpu_particles_2d_bottom.emitting = true
+	gpu_particles_2d_middle.emitting = true
+	gpu_particles_2d_top.emitting = true
+	
+	gpu_particles_2d_bottom.lifetime = 5.0 * intensity
+	gpu_particles_2d_middle.lifetime = 6.0 * intensity
+	gpu_particles_2d_top.lifetime = 5.0 * intensity
+
+func _handle_eject() -> void:
+	if not is_ejecting:
+		is_ejecting = true
+		if DataHandler.has_fuel_needed_for_eject():
+			DataHandler.move_cargo_to_inventory()
+		else:
+			var eject_percent = DataHandler.eject_fuel_percentage()
+			var pod_position = position * (1 - eject_percent)
+			DataHandler.create_cargo_pod(pod_position)
+		
+		DataHandler.save_game_data()
+		get_tree().change_scene_to_file("res://scenes/launch_menu.tscn")