156 lines
3.1 KiB
Java
156 lines
3.1 KiB
Java
package com.hypixel.hytale.math.shape;
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import com.hypixel.hytale.math.vector.Vector2d;
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import java.util.Random;
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import javax.annotation.Nonnull;
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public class Quad2d {
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private Vector2d a;
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private Vector2d b;
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private Vector2d c;
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private Vector2d d;
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public Quad2d(Vector2d a, Vector2d b, Vector2d c, Vector2d d) {
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this.a = a;
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this.b = b;
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this.c = c;
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this.d = d;
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}
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public Quad2d() {
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this(new Vector2d(), new Vector2d(), new Vector2d(), new Vector2d());
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}
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public Quad2d(@Nonnull Vector2d[] points) {
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this(points, 0, 1, 2, 3);
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}
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public Quad2d(@Nonnull Vector2d[] points, int a, int b, int c, int d) {
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this(points[a], points[b], points[c], points[d]);
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}
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public Vector2d getA() {
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return this.a;
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}
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public Vector2d getB() {
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return this.b;
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}
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public Vector2d getC() {
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return this.c;
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}
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public Vector2d getD() {
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return this.d;
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}
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public double getMinX() {
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double min = this.a.x;
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if (min > this.b.x) {
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min = this.b.x;
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}
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if (min > this.c.x) {
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min = this.c.x;
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}
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if (min > this.d.x) {
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min = this.d.x;
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}
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return min;
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}
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public double getMinY() {
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double min = this.a.y;
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if (min > this.b.y) {
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min = this.b.y;
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}
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if (min > this.c.y) {
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min = this.c.y;
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}
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if (min > this.d.y) {
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min = this.d.y;
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}
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return min;
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}
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public double getMaxX() {
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double max = this.a.x;
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if (max < this.b.x) {
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max = this.b.x;
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}
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if (max < this.c.x) {
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max = this.c.x;
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}
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if (max < this.d.x) {
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max = this.d.x;
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}
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return max;
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}
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public double getMaxY() {
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double max = this.a.y;
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if (max < this.b.y) {
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max = this.b.y;
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}
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if (max < this.c.y) {
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max = this.c.y;
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}
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if (max < this.d.y) {
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max = this.d.y;
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}
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return max;
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}
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@Nonnull
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public Vector2d getCenter() {
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return this.getCenter(new Vector2d());
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}
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@Nonnull
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public Vector2d getCenter(@Nonnull Vector2d target) {
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return target.assign((this.a.x + this.c.x) * 0.5, (this.a.y + this.c.y) * 0.5);
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}
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@Nonnull
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public Vector2d getRandom(@Nonnull Random random) {
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return this.getRandom(random, new Vector2d());
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}
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@Nonnull
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public Vector2d getRandom(@Nonnull Random random, @Nonnull Vector2d vec) {
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double p = random.nextDouble();
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double q = random.nextDouble();
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if (p + q > 1.0) {
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p = 1.0 - p;
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q = 1.0 - q;
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}
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double pq = 1.0 - p - q;
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if (random.nextBoolean()) {
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vec.assign(-this.a.x * pq + this.b.x * p + this.c.x * q, -this.a.y * pq + this.b.y * p + this.c.y * q);
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} else {
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vec.assign(-this.a.x * pq + this.c.x * p + this.d.x * q, -this.a.y * pq + this.c.y * p + this.d.y * q);
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}
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return vec;
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}
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@Nonnull
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@Override
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public String toString() {
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return "Quad2d{a=" + this.a + ", b=" + this.b + ", c=" + this.c + "}";
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}
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}
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