mirror of
https://github.com/rjNemo/breakout
synced 2026-06-06 08:36:39 +00:00
38 lines
562 B
Go
38 lines
562 B
Go
package main
|
|
|
|
const (
|
|
paddleHeight = 12
|
|
paddleWidth = 60
|
|
paddleSpeed = 5
|
|
paddleY = screenHeight - 40
|
|
)
|
|
|
|
func newPaddle() paddle {
|
|
return paddle{
|
|
x: screenWidth/2 - paddleWidth/2,
|
|
y: paddleY,
|
|
width: paddleWidth,
|
|
height: paddleHeight,
|
|
}
|
|
}
|
|
|
|
type paddle struct {
|
|
x, y, width, height float32
|
|
}
|
|
|
|
func (p *paddle) moveLeft() {
|
|
p.x -= paddleSpeed
|
|
}
|
|
|
|
func (p *paddle) moveRight() {
|
|
p.x += paddleSpeed
|
|
}
|
|
|
|
func (p *paddle) keepWithinBounds() {
|
|
if p.x < 0 {
|
|
p.x = 0
|
|
}
|
|
if p.x > screenWidth-p.width {
|
|
p.x = screenWidth - p.width
|
|
}
|
|
}
|