93 lines
3.0 KiB
JavaScript
93 lines
3.0 KiB
JavaScript
// 输入：IWBT 经典键位（Shift 跳 / Z 跳 / X 射击 / R 重来）
|
|
export const BIND = {
|
|
left: ['ArrowLeft', 'KeyA'],
|
|
right: ['ArrowRight', 'KeyD'],
|
|
up: ['ArrowUp', 'KeyW'],
|
|
down: ['ArrowDown', 'KeyS'],
|
|
jump: ['ShiftLeft', 'ShiftRight', 'Space', 'KeyZ', 'KeyN'],
|
|
shoot: ['KeyX', 'KeyJ', 'KeyC', 'KeyM'],
|
|
suicide: ['KeyR'], // IWBT 标准：自杀并回到最近存档点
|
|
restart: ['Backspace'], // 整关从头再来（放弃所有存档点）
|
|
pause: ['Escape', 'KeyP'],
|
|
menu: ['KeyQ'],
|
|
};
|
|
|
|
// 出厂键位快照（供设置里的「恢复默认」使用）
|
|
const DEFAULT_BIND = JSON.parse(JSON.stringify(BIND));
|
|
|
|
const down = new Set(); // 当前按住的原始 code
|
|
const now = {}; // action 是否按下
|
|
const prev = {}; // 上一帧
|
|
const touch = {}; // action -> bool（来自触屏虚拟按键）
|
|
const blocked = new Set(['Space', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'Tab']);
|
|
|
|
export const Input = {
|
|
enabled: true,
|
|
/** 是否按下 */
|
|
is(action) { return !!now[action]; },
|
|
/** 本帧刚按下 */
|
|
hit(action) { return !!now[action] && !prev[action]; },
|
|
/** 本帧刚松开 */
|
|
released(action) { return !now[action] && !!prev[action]; },
|
|
raw(code) { return down.has(code); },
|
|
anyHit() { for (const k in now) if (now[k] && !prev[k]) return true; return false; },
|
|
|
|
clear() {
|
|
down.clear();
|
|
for (const k in now) now[k] = false;
|
|
for (const k in prev) prev[k] = false;
|
|
},
|
|
|
|
/** 每逻辑帧末尾调用 */
|
|
endFrame() {
|
|
for (const k in now) prev[k] = now[k];
|
|
},
|
|
};
|
|
|
|
function refresh() {
|
|
for (const act in BIND) {
|
|
let v = false;
|
|
for (const c of BIND[act]) if (down.has(c)) { v = true; break; }
|
|
if (touch[act]) v = true; // 触屏虚拟按键
|
|
now[act] = Input.enabled ? v : false;
|
|
}
|
|
}
|
|
|
|
// ---------------- 触屏虚拟按键接口 ----------------
|
|
export function setTouch(action, on) {
|
|
if (!(action in touch)) touch[action] = false;
|
|
if (touch[action] === on) return;
|
|
touch[action] = on;
|
|
refresh();
|
|
}
|
|
export function clearTouch() {
|
|
let any = false;
|
|
for (const k in touch) if (touch[k]) { touch[k] = false; any = true; }
|
|
if (any) refresh();
|
|
}
|
|
|
|
addEventListener('keydown', e => {
|
|
if (blocked.has(e.code)) e.preventDefault();
|
|
if (e.repeat) return;
|
|
down.add(e.code);
|
|
refresh();
|
|
});
|
|
addEventListener('keyup', e => {
|
|
down.delete(e.code);
|
|
refresh();
|
|
});
|
|
addEventListener('blur', () => { down.clear(); refresh(); });
|
|
|
|
// ---------------- 键位自定义（设置界面调用） ----------------
|
|
/** 返回一份出厂键位的深拷贝 */
|
|
export function defaultBindings() { return JSON.parse(JSON.stringify(DEFAULT_BIND)); }
|
|
/** 用一份 {action: [code,...]} 映射覆盖当前生效键位（设置确定后调用） */
|
|
export function applyBindings(map) {
|
|
if (!map) return;
|
|
for (const act in map) if (act in BIND) BIND[act] = map[act].slice();
|
|
}
|
|
|
|
// 初始化
|
|
for (const act in BIND) { now[act] = false; prev[act] = false; }
|
|
export const ACTIONS = Object.keys(BIND);
|