-
Notifications
You must be signed in to change notification settings - Fork 0
/
alien.go
54 lines (46 loc) · 1.02 KB
/
alien.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
/*
* @Author: Wujiahuo
* @Date: 2023-03-14 15:57:59
* @LastEditors: OBKoro1
* @LastEditTime: 2023-03-20 16:03:54
* @FilePath: \alien\alien.go
* @Description:
* Copyright (c) 2023 by Wujiahuo/bzlrobot, All Rights Reserved.
*/
package main
import (
"log"
"github.com/hajimehoshi/ebiten/v2"
"github.com/hajimehoshi/ebiten/v2/ebitenutil"
)
type Alien struct {
GameObject
image *ebiten.Image
speedFactor float64
}
func NewAlien(cfg *Config) *Alien {
img, _, err := ebitenutil.NewImageFromFile("./images/alien.png")
if err != nil {
log.Fatal(err)
}
width, height := img.Size()
alien := &Alien{
image: img,
GameObject: GameObject{
width: width,
height: height,
x: 0,
y: 0,
},
speedFactor: cfg.AlienSpeedFactor,
}
return alien
}
func (alien *Alien) Draw(screen *ebiten.Image) {
op := &ebiten.DrawImageOptions{}
op.GeoM.Translate(alien.x, alien.y)
screen.DrawImage(alien.image, op)
}
func (alien *Alien) outOfScreen(cfg *Config) bool {
return alien.y > float64(cfg.ScreenHeight)
}