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
|
import { InputHandler } from './inputhandler';
import { Listenable } from '../../util';
import { vec2 } from 'gl-matrix';
export enum ButtonCode {
Action,
Back,
Menu,
}
const buttonMapping: Record<string, ButtonCode> = {
KeyZ: ButtonCode.Action,
KeyX: ButtonCode.Back,
KeyC: ButtonCode.Menu,
};
export interface DirectionInput {
type: 'direction';
direction: vec2;
}
export interface ButtonInput {
type: 'button';
button: ButtonCode;
}
export type GameInput = DirectionInput | ButtonInput;
export class GameInputHandler extends Listenable<[GameInput]> {
private readonly input: InputHandler;
constructor() {
super();
this.input = new InputHandler(
new Set([
'ArrowLeft',
'ArrowUp',
'ArrowRight',
'ArrowDown',
...Object.keys(buttonMapping),
]));
this.input.addListener((key: string, pressed: boolean) => {
const button = buttonMapping[key];
if (button !== undefined) {
if (pressed)
this.runListeners({
type: 'button',
button,
});
return;
}
const dir = vec2.create();
if (this.input.has('ArrowLeft'))
vec2.add(dir, dir, [-1, 0]);
if (this.input.has('ArrowUp'))
vec2.add(dir, dir, [0, -1]);
if (this.input.has('ArrowRight'))
vec2.add(dir, dir, [1, 0]);
if (this.input.has('ArrowDown'))
vec2.add(dir, dir, [0, 1]);
if (vec2.sqrLen(dir) > 0)
vec2.normalize(dir, dir);
this.runListeners({
type: 'direction',
direction: dir,
});
});
}
}
|
