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refactor

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33333-33333 2026-06-22 02:03:19 +09:00
commit e8f1d1db1e
60 changed files with 2417 additions and 612 deletions
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54
js/physics_helpers.js Normal file
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"use strict";
(function (global) {
function bounceInsideWorld(obj, worldRef, opts = {}) {
if (!obj || !worldRef) return false;
const p = Math.max(opts.padding ?? 28, CONFIG.worldPadding || 30);
const bx = opts.bounceX ?? opts.bounce ?? 0.72;
const by = opts.bounceY ?? opts.bounce ?? 0.72;
const spinBounce = opts.spinBounce ?? -0.72;
let bounced = false;
if (obj.x < p) { obj.x = p; obj.vx = Math.abs(obj.vx || 0) * bx; bounced = true; }
if (obj.x > worldRef.w - p) { obj.x = worldRef.w - p; obj.vx = -Math.abs(obj.vx || 0) * bx; bounced = true; }
if (obj.y < p) { obj.y = p; obj.vy = Math.abs(obj.vy || 0) * by; bounced = true; }
if (obj.y > worldRef.h - p) { obj.y = worldRef.h - p; obj.vy = -Math.abs(obj.vy || 0) * by; bounced = true; }
if (bounced && Number.isFinite(obj.spinVelocity)) obj.spinVelocity *= spinBounce;
return bounced;
}
function applyKinematicItemMotion(item, worldRef, dt, opts = {}) {
if (!item || !worldRef) return 0;
const stopSpeed = opts.stopSpeed ?? 0.05;
const speed = Math.hypot(item.vx || 0, item.vy || 0);
item.prevX = item.x;
item.prevY = item.y;
if (speed <= stopSpeed) {
item.vx = 0;
item.vy = 0;
if (Number.isFinite(item.spinVelocity)) {
item.spinVelocity *= Math.pow(opts.spinRestDamp ?? 0.08, dt);
item.spin = (item.spin || 0) + (item.spinVelocity || 0) * dt;
}
return speed;
}
item.x += (item.vx || 0) * dt;
item.y += (item.vy || 0) * dt;
bounceInsideWorld(item, worldRef, opts);
const friction = Math.pow(opts.frictionBase ?? 0.68, dt * (opts.frictionRate ?? 1));
item.vx *= friction;
item.vy *= friction;
if (opts.spin !== false) {
item.spin = (item.spin || 0) + (item.spinVelocity || 0) * dt + (item.vx || 0) * dt / Math.max(7, item.r || 16);
item.spinVelocity = (item.spinVelocity || 0) * Math.pow(opts.spinFrictionBase ?? 0.38, dt);
}
if (Math.hypot(item.vx || 0, item.vy || 0) < (opts.zeroBelow ?? 0)) {
item.vx = 0;
item.vy = 0;
if (Number.isFinite(item.spinVelocity)) item.spinVelocity *= 0.3;
}
worldRef.drawListDirty = true;
return speed;
}
global.TarinaiPhysics = { bounceInsideWorld, applyKinematicItemMotion };
})(typeof window !== "undefined" ? window : globalThis);