第一个速度计算的球没有到达它应该去的目标

Question

In the function below, The distance between ball and target is known(R). Also, the angle between the resultant vector and the x-axis is known(LaunchAngle). Thanks to these parameters(R, LaunchAngle), I calculate the initial velocity of a ball. I checked all the values. According to physics, they are all correct. Although all calculations are correct, the ball does not hit the target.

void LaunchFromTargetPositionWithoutFrictionForce()
        {
            Vector3 projectileXZPos = new Vector3(transform.position.x, 0.0f, transform.position.z);
            Vector3 targetXZPos = new Vector3(TargetObjectTF.position.x, 0.0f, TargetObjectTF.position.z);
            transform.LookAt(targetXZPos);

            float R = Vector3.Distance(projectileXZPos, targetXZPos);
            float G = -Physics.gravity.y;

            float Vz = Mathf.Sqrt(G * R / Mathf.Sin((2.0f * LaunchAngle) * Mathf.Deg2Rad));
            float Vy = Vz * Mathf.Sin(LaunchAngle * Mathf.Deg2Rad);
            float Vx = Vz * Mathf.Cos(LaunchAngle * Mathf.Deg2Rad);
            text2.text = "vz: " + Vz.ToString() + " vy: " + Vy.ToString() + " vx: " + Vx.ToString();

            Vector3 localVelocity = new Vector3(0f, Vy, Vx);
            Vector3 globalVelocity = transform.TransformDirection(localVelocity);


            rigid.velocity = globalVelocity;
            bTargetReady = true;

            if (isSlowMotion) timeManager.slowMotion();
        }

球的第一个位置

并且在二维运动之后它在目标之前被击中

Answer 1

我用以下代码更改了前 3 行。问题解决了。

    Vector3 projectileXZPos = transform.position;
    Vector3 targetXZPos = TargetObjectTF.position;
    float dist = Vector3.Distance(projectileXZPos, targetXZPos);
    transform.LookAt(targetXZPos);

第一个速度计算的球没有到达它应该去的目标

The first speed calculated ball does not go to the target it should go

unity3d

physics

motion

projectile

kinematics