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45 lines
1.6 KiB
45 lines
1.6 KiB
/**
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* 近战戳刺段时序：与弓 PROJECTILE_FLY_SPEED 同模型，
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* duration = dist / (pxPerSec * aspd)，戳刺像素速度随攻速线性提升。
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*/
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/** @aspd=1 瞄准插值基准秒数（角向，与距离无关） */
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export const MELEE_AIM_SEC = 0.12;
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/** @aspd=1 戳刺逻辑像素/秒（约 84px / 0.07s） */
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export const MELEE_THRUST_PX_PER_SEC = 1200;
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/** @aspd=1 收回逻辑像素/秒（约 84px / 0.1s） */
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export const MELEE_RETURN_PX_PER_SEC = 840;
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/** 戳刺/收回段最短时长，避免极短距离时帧级闪烁 */
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export const MELEE_MIN_PHASE_SEC = 0.03;
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/** 攻击被打断后 atkParent 复位插值（与攻速无关） */
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export const MELEE_RESTORE_SEC = 0.1;
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export interface MeleeThrustTimingOpts {
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aimSec?: number;
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thrustPxPerSec?: number;
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returnPxPerSec?: number;
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minPhaseSec?: number;
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}
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/** 按戳刺距离与攻速计算瞄准/戳刺/收回时长 */
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export function calcMeleeThrustPhaseDurations(
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thrustDistPx: number,
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aspdScale: number,
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opts?: MeleeThrustTimingOpts,
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): { aimDur: number; thrustDur: number; returnDur: number } {
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const aspd = Math.max(0.01, aspdScale);
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const dist = Math.max(0, thrustDistPx);
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const aimSec = opts?.aimSec ?? MELEE_AIM_SEC;
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const thrustSpd = opts?.thrustPxPerSec ?? MELEE_THRUST_PX_PER_SEC;
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const returnSpd = opts?.returnPxPerSec ?? MELEE_RETURN_PX_PER_SEC;
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const minSec = opts?.minPhaseSec ?? MELEE_MIN_PHASE_SEC;
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return {
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aimDur: aimSec / aspd,
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thrustDur: Math.max(minSec, dist / (thrustSpd * aspd)),
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returnDur: Math.max(minSec, dist / (returnSpd * aspd)),
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};
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}
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