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60 lines
2.0 KiB
60 lines
2.0 KiB
3 weeks ago
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import { Color, sp, Tween, tween } from 'cc';
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import { SpineBatch } from 'db://assets/resources/multSpines/MultSpine';
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/** 闪白峰值：类型 2 + 高插值（见 Mult-spine.effect mixColor） */
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const FLASH_PEAK = 2.92;
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/** 闪白收尾（仍保持类型 2，插值降到近 0） */
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const FLASH_TAIL = 2.02;
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const FLASH_SEC = 0.14;
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type SkelFlash = sp.Skeleton & { shaderVar: number; _hitFlashProxy?: { v: number } };
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/**
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* Spine 受击闪白（MultSpine shaderVar 类型 2，按 alpha 加权，不白雾透明区）。
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* MultSpine 未启用时：短时提亮 tint（不整图铺白），再还原 baseColor。
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*/
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export function playSpineHitFlash(skel: sp.Skeleton | null | undefined, baseColor?: Readonly<Color>): void {
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if (!skel?.isValid) return;
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const s = skel as SkelFlash;
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if (!s._hitFlashProxy) s._hitFlashProxy = { v: 0 };
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const proxy = s._hitFlashProxy;
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Tween.stopAllByTarget(proxy);
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Tween.stopAllByTarget(skel);
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if (SpineBatch.active() && typeof s.shaderVar === 'number') {
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proxy.v = FLASH_PEAK;
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s.shaderVar = FLASH_PEAK;
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tween(proxy)
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.to(FLASH_SEC, { v: FLASH_TAIL }, {
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easing: 'sineOut',
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onUpdate: () => {
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if (s.isValid) s.shaderVar = proxy.v;
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},
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})
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.call(() => {
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if (s.isValid) s.shaderVar = 0;
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})
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.start();
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return;
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}
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// tint 回退：在基准色上短暂提亮，避免 Color.WHITE 铺满网格透明区
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const restore = baseColor
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? new Color(baseColor.r, baseColor.g, baseColor.b, baseColor.a)
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: new Color(skel.color.r, skel.color.g, skel.color.b, skel.color.a);
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const flash = new Color(
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Math.min(255, restore.r + 120),
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Math.min(255, restore.g + 120),
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Math.min(255, restore.b + 120),
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restore.a,
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);
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skel.color = flash;
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tween(skel)
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.delay(FLASH_SEC)
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.call(() => {
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if (skel.isValid) skel.color = restore;
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})
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.start();
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}
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