如何使子弹移向三维空间中的一个点

我目前正在使用java LWJGL制作3D第一人称射击游戏.我想转动并将子弹移向世界上的指定点.我设法让子弹在Y轴上转动但不在X和Z上.我怎样才能让子弹在Z轴和X轴上转动然后向点移动？

这是我的Bullet类：

package entities;

import org.lwjgl.util.vector.Vector3f;

import models.TexturedModel;
import renderEngine.DisplayManager;
import toolbox.MousePicker;

public class Bullet extends Entity{

private static Vector3f currentRay = new Vector3f();
private static final float RAY_RANGE = 600;
public static boolean reset = true;
public Bullet(TexturedModel model, Vector3f position, float rotX, float rotY, float rotZ, float scale) {
    super(model, position, rotX, rotY, rotZ, scale);

}
public void move(Bullet b){
    float distance =  2 * DisplayManager.getFrameTimeSeconds();
    currentRay = MousePicker.calculateMouseRay();
    Vector3f endPoint = MousePicker.getPointOnRay(currentRay, 10000);
    //I want my Bullet to move towards the Vector3f endPoint

    float zDistance = endPoint.z - this.getPosition().z;
    float xDistance = endPoint.x - this.getPosition().x;
    double angleToTurn = Math.toDegrees(Math.atan2(xDistance,     zDistance));
    this.setRotY((float)angleToTurn);
    float dx = (float) (distance * Math.sin(Math.toRadians(super.getRotY())));
    float dz = (float) (distance * Math.cos(Math.toRadians(super.getRotY())));

    super.increasePosition(dx, 0, dz);


}
    }

解决方法:

你想要做的是获得使你的子弹更接近你的目标(这里是鼠标)endPoint所需的速度.

首先,你得到两个endPoint.sub(位置)之间的向量;

然后你规范化()它以获得方向.

你用你想要的速度缩放()它以获得即时速度.

你super.increasePosition(speed.x,speed.y,speed.z);让它向目标移动

标签：java,math,3d,lwjgl
来源： https://codeday.me/bug/20190627/1308309.html