ULTAA/index.js at master · AcidicArmadillo/ULTAA · GitHub

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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128

const canvas = document.querySelector('canvas')

const c = canvas.getContext('2d')
canvas.width=1250
canvas.height=2200

c.fillStyle='white'
c.fillRect(0, 0, canvas.width, canvas.height)

const image = new Image()
image.src='./img/MAP1.png'

const playerImage = new Image()
playerImage.src='./img/playerUp.png'

class Sprite{
    constructor({position,velocity,image}){
        this.position=position
        this.image=image
    }
    draw(){
        c.drawImage(this.image, this.position.x, this.position.y)
    }
}


const background = new Sprite({position:{
    x:0,
    y:0
},
image: image
})

const keys={
    w:{
        pressed: false
    },
    a:{
        pressed: false
    },
    s:{
        pressed: false
    },
    d:{
        pressed: false
    },

}


function animate() {
    window.requestAnimationFrame(animate)
    background.draw()

    c.drawImage(playerImage,
        0,
        0,
        playerImage.width /4,
        playerImage.height,
        300,
        2100,
        playerImage.width /4,
        playerImage.height)

        if(keys.w.pressed && lastKey == 'w'){
            background.position.y = background.position.y + 2;
        }
        else if(keys.a.pressed && lastKey == 'a'){
            background.position.x = background.position.x + 2;
        }
        else if(keys.s.pressed && lastKey == 's'){
            background.position.y = background.position.y - 2;
        }
        else if(keys.d.pressed && lastKey =='d'){
            background.position.x  = background.position.x - 2;
        }
}
animate()

let lastKey = ''

window.addEventListener('keydown', (e)=>{
    console.log(e.key)
    switch(e.key){
        case 'w':
            keys.w.pressed = true
            lastKey='w'
            break

            case 'a':
                keys.a.pressed = true
                lastKey='a'
            break

            case 's':
                keys.s.pressed = true
                lastKey='s'
            break

            case 'd':
                keys.d.pressed = true
                lastKey='d'
            break

    }
})
window.addEventListener('keyup', (e)=>{
    console.log(e.key)
    switch(e.key){
        case 'w':
            keys.w.pressed = false
            break

            case 'a':
                keys.a.pressed = false
            break

            case 's':
                keys.s.pressed = false
            break

            case 'd':
                keys.d.pressed = false
            break

    }
})