73 lines
1.5 KiB
GDScript
73 lines
1.5 KiB
GDScript
extends Area2D
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@export var speed = 3 # How fast the player will move (pixels/sec).
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@export var jump_speed = 4
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@export var speed_inc = 0.3
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signal start # The bird starts
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signal passed # The bird passes a Tower
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signal hit # The bird is hit/flies off screen
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var tower_locations = []
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var screen_size
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var playing = false
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var speed_y = 0
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func start_game():
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tower_locations = []
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screen_size = get_viewport_rect().size
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position = Vector2(0, screen_size.y / 2)
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speed_y = 0
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update_rotation()
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# Called when the node enters the scene tree for the first time.
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func _ready():
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screen_size = get_viewport_rect().size
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# Called every frame
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func _process(_delta):
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if Input.is_action_just_pressed("ui_accept"):
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if not playing:
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start_game()
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emit_signal("start")
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speed_y = 0
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playing = true
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$CollisionShape2D.set_deferred("disabled", false)
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speed_y = min(speed_y, 0) - 1 * jump_speed
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if not playing:
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return
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# Adjust the birds position
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speed_y += speed_inc
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position += Vector2(speed, speed_y * speed)
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var global = get_global_transform().get_origin()
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while global.x > tower_locations[0]:
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emit_signal("passed")
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tower_locations.pop_front()
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# Rotate the bird
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update_rotation()
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if position.y > screen_size.y:
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emit_signal("hit")
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playing = false
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func update_rotation():
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rotation = atan(speed_y / speed)
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# Hit detection
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func _on_Player_body_entered(_body):
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playing = false
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start_game()
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emit_signal("hit")
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$CollisionShape2D.set_deferred("disabled", true)
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func _on_Tower_spawn(x):
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tower_locations.append(x)
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