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0343cedd48
* General proofreading for grammar and spelling * General formatting * Addition of appropriate literals where appropriate, i.e. `&"foo"` for `StringName` cases and `^"foo/bar"` for `NodePath` cases
68 lines
2.1 KiB
GDScript
68 lines
2.1 KiB
GDScript
extends Node2D
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const PAD_SPEED = 150
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const INITIAL_BALL_SPEED = 80.0
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var ball_speed := INITIAL_BALL_SPEED
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var screen_size := Vector2(640, 400)
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# Default ball direction.
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var direction := Vector2.LEFT
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var pad_size := Vector2(8, 32)
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@onready var ball: Sprite2D = $Ball
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@onready var left_paddle: Sprite2D = $LeftPaddle
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@onready var right_paddle: Sprite2D = $RightPaddle
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func _ready() -> void:
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screen_size = get_viewport_rect().size # Get actual size.
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pad_size = left_paddle.get_texture().get_size()
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func _process(delta: float) -> void:
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# Get ball position and pad rectangles.
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var ball_pos := ball.get_position()
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var left_rect := Rect2(left_paddle.get_position() - pad_size * 0.5, pad_size)
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var right_rect := Rect2(right_paddle.get_position() - pad_size * 0.5, pad_size)
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# Integrate new ball position.
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ball_pos += direction * ball_speed * delta
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# Flip when touching roof or floor.
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if (ball_pos.y < 0 and direction.y < 0) or (ball_pos.y > screen_size.y and direction.y > 0):
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direction.y = -direction.y
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# Flip, change direction, and increase speed when touching pads.
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if (left_rect.has_point(ball_pos) and direction.x < 0) or (right_rect.has_point(ball_pos) and direction.x > 0):
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direction.x = -direction.x
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ball_speed *= 1.1
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direction.y = randf() * 2.0 - 1
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direction = direction.normalized()
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# Check gameover.
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if ball_pos.x < 0 or ball_pos.x > screen_size.x:
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ball_pos = screen_size * 0.5
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ball_speed = INITIAL_BALL_SPEED
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direction = Vector2(-1, 0)
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ball.set_position(ball_pos)
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# Move left pad.
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var left_pos := left_paddle.get_position()
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if left_pos.y > 0 and Input.is_action_pressed(&"left_move_up"):
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left_pos.y += -PAD_SPEED * delta
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if left_pos.y < screen_size.y and Input.is_action_pressed(&"left_move_down"):
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left_pos.y += PAD_SPEED * delta
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left_paddle.set_position(left_pos)
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# Move right pad.
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var right_pos := right_paddle.get_position()
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if right_pos.y > 0 and Input.is_action_pressed(&"right_move_up"):
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right_pos.y += -PAD_SPEED * delta
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if right_pos.y < screen_size.y and Input.is_action_pressed(&"right_move_down"):
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right_pos.y += PAD_SPEED * delta
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right_paddle.set_position(right_pos)
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