100 lines
2.3 KiB
Java
100 lines
2.3 KiB
Java
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package com.gnarly.engine.utils;
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import org.joml.Vector3f;
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public class RHitbox {
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private Vector3f center, halfExtent;
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public RHitbox(float x, float y, float width, float height) {
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center = new Vector3f(x + width / 2, y + height / 2, 0);
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halfExtent = new Vector3f(width / 2, height / 2, 0);
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}
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public Vector3f collisionAdjust(RHitbox hitbox) {
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Vector3f ret = new Vector3f();
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Vector3f distance = hitbox.center.sub(center, new Vector3f());
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distance.x = (float)Math.abs(distance.x);
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distance.y = (float)Math.abs(distance.y);
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distance.sub(halfExtent.add(hitbox.getHalfExtent(), new Vector3f()));
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if (distance.x < 0 && distance.y < 0) {
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Vector3f correction = hitbox.getCenter().sub(center, new Vector3f());
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if(distance.x > distance.y) {
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if(correction.x > 0)
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ret.x = distance.x;
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else
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ret.x = -distance.x;
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}
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else if(distance.x < distance.y) {
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if(correction.y > 0)
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ret.y = distance.y;
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else
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ret.y = -distance.y;
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}
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else {
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if(correction.x > 0)
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ret.x = distance.x;
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else
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ret.x = -distance.x;
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if(correction.y > 0)
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ret.y = distance.y;
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else
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ret.y = -distance.y;
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}
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}
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return ret;
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}
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public boolean checkCollision(RHitbox hitbox) {
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Vector3f distance = hitbox.center.sub(center, new Vector3f());
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distance.x = (float)Math.abs(distance.x);
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distance.y = (float)Math.abs(distance.y);
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distance.sub(halfExtent.add(hitbox.getHalfExtent(), new Vector3f()));
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return (distance.x < 0 && distance.y < 0);
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}
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public void setPosition(float x, float y) {
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center.x = x + halfExtent.x;
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center.y = y + halfExtent.y;
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}
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public void translate(Vector3f translate) {
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center.x += translate.x;
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center.y += translate.y;
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}
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public void setBounds(float width, float height) {
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halfExtent.x = width / 2;
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halfExtent.y = height / 2;
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center.x += (width - halfExtent.x) / 2;
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center.y += (height - halfExtent.y) / 2;
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}
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public float getX() {
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return center.x - halfExtent.x;
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}
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public float getY() {
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return center.y - halfExtent.y;
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}
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public float getWidth() {
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return halfExtent.x * 2;
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}
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public float getHeight() {
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return halfExtent.y * 2;
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}
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public Vector3f getCenter() {
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return center;
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}
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public Vector3f getHalfExtent() {
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return halfExtent;
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}
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}
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