import { Vector } from "../Core/Utils/Vector";
let _random = Math.random;
const easings = new Map();
export function addEasing(name, easing) {
    if (!easings.get(name)) {
        easings.set(name, easing);
    }
}
export function getEasing(name) {
    return easings.get(name) || ((value) => value);
}
export function setRandom(rnd = Math.random) {
    _random = rnd;
}
export function getRandom() {
    return clamp(_random(), 0, 1 - 1e-16);
}
export function clamp(num, min, max) {
    return Math.min(Math.max(num, min), max);
}
export function mix(comp1, comp2, weight1, weight2) {
    return Math.floor((comp1 * weight1 + comp2 * weight2) / (weight1 + weight2));
}
export function randomInRange(r) {
    const max = getRangeMax(r);
    let min = getRangeMin(r);
    if (max === min) {
        min = 0;
    }
    return getRandom() * (max - min) + min;
}
export function getRangeValue(value) {
    return typeof value === "number" ? value : randomInRange(value);
}
export function getRangeMin(value) {
    return typeof value === "number" ? value : value.min;
}
export function getRangeMax(value) {
    return typeof value === "number" ? value : value.max;
}
export function setRangeValue(source, value) {
    if (source === value || (value === undefined && typeof source === "number")) {
        return source;
    }
    const min = getRangeMin(source), max = getRangeMax(source);
    return value !== undefined
        ? {
            min: Math.min(min, value),
            max: Math.max(max, value),
        }
        : setRangeValue(min, max);
}
export function getValue(options) {
    const random = options.random, { enable, minimumValue } = typeof random === "boolean"
        ? {
            enable: random,
            minimumValue: 0,
        }
        : random;
    return enable ? getRangeValue(setRangeValue(options.value, minimumValue)) : getRangeValue(options.value);
}
export function getDistances(pointA, pointB) {
    const dx = pointA.x - pointB.x, dy = pointA.y - pointB.y;
    return { dx: dx, dy: dy, distance: Math.sqrt(dx ** 2 + dy ** 2) };
}
export function getDistance(pointA, pointB) {
    return getDistances(pointA, pointB).distance;
}
export function getParticleDirectionAngle(direction, position, center) {
    if (typeof direction === "number") {
        return (direction * Math.PI) / 180;
    }
    else {
        switch (direction) {
            case "top":
                return -Math.PI / 2;
            case "top-right":
                return -Math.PI / 4;
            case "right":
                return 0;
            case "bottom-right":
                return Math.PI / 4;
            case "bottom":
                return Math.PI / 2;
            case "bottom-left":
                return (3 * Math.PI) / 4;
            case "left":
                return Math.PI;
            case "top-left":
                return (-3 * Math.PI) / 4;
            case "inside":
                return Math.atan2(center.y - position.y, center.x - position.x);
            case "outside":
                return Math.atan2(position.y - center.y, position.x - center.x);
            default:
                return getRandom() * Math.PI * 2;
        }
    }
}
export function getParticleBaseVelocity(direction) {
    const baseVelocity = Vector.origin;
    baseVelocity.length = 1;
    baseVelocity.angle = direction;
    return baseVelocity;
}
export function collisionVelocity(v1, v2, m1, m2) {
    return Vector.create((v1.x * (m1 - m2)) / (m1 + m2) + (v2.x * 2 * m2) / (m1 + m2), v1.y);
}
export function calcPositionFromSize(data) {
    return data.position && data.position.x !== undefined && data.position.y !== undefined
        ? {
            x: (data.position.x * data.size.width) / 100,
            y: (data.position.y * data.size.height) / 100,
        }
        : undefined;
}
export function calcPositionOrRandomFromSize(data) {
    var _a, _b, _c, _d;
    return {
        x: (((_b = (_a = data.position) === null || _a === void 0 ? void 0 : _a.x) !== null && _b !== void 0 ? _b : getRandom() * 100) * data.size.width) / 100,
        y: (((_d = (_c = data.position) === null || _c === void 0 ? void 0 : _c.y) !== null && _d !== void 0 ? _d : getRandom() * 100) * data.size.height) / 100,
    };
}
export function calcPositionOrRandomFromSizeRanged(data) {
    var _a, _b;
    const position = {
        x: ((_a = data.position) === null || _a === void 0 ? void 0 : _a.x) !== undefined ? getRangeValue(data.position.x) : undefined,
        y: ((_b = data.position) === null || _b === void 0 ? void 0 : _b.y) !== undefined ? getRangeValue(data.position.y) : undefined,
    };
    return calcPositionOrRandomFromSize({ size: data.size, position });
}
export function calcExactPositionOrRandomFromSize(data) {
    var _a, _b, _c, _d;
    return {
        x: (_b = (_a = data.position) === null || _a === void 0 ? void 0 : _a.x) !== null && _b !== void 0 ? _b : getRandom() * data.size.width,
        y: (_d = (_c = data.position) === null || _c === void 0 ? void 0 : _c.y) !== null && _d !== void 0 ? _d : getRandom() * data.size.height,
    };
}
export function calcExactPositionOrRandomFromSizeRanged(data) {
    var _a, _b;
    const position = {
        x: ((_a = data.position) === null || _a === void 0 ? void 0 : _a.x) !== undefined ? getRangeValue(data.position.x) : undefined,
        y: ((_b = data.position) === null || _b === void 0 ? void 0 : _b.y) !== undefined ? getRangeValue(data.position.y) : undefined,
    };
    return calcExactPositionOrRandomFromSize({ size: data.size, position });
}
export function parseAlpha(input) {
    return input ? (input.endsWith("%") ? parseFloat(input) / 100 : parseFloat(input)) : 1;
}