[英]Let object glide to mouse with constant speed Unity C#
我有一个子弹 object,它需要在按下鼠标时滑向鼠标(但释放时应该停止)。 我尝试了多种方法,但每次子弹加速时,都会以椭圆形围绕鼠标转圈(我也有重力)。 我怎样才能让它以恒定的速度向鼠标移动?
这是我的代码:
using UnityEngine;
public class Bullet : MonoBehaviour {
public Rigidbody rigidbody;
void Start() {
rigidbody = GetComponent<Rigidbody>();
rigidbody.useGravity = false;
rigidbody.velocity = new Vector3(0, -0.3F, 0);
}
float getX(Vector3 transform_pos, Vector3 mouse_pos) {
float tx = transform_pos.x;
float mx = mouse_pos.x;
if (tx == mx) { return 0;
} else if (tx > mx) { return -1;
} else if (tx < mx ) { return 1;
}else { return 0; }
}
void Update() {
if (Input.GetMouseButton(0)) {
Vector3 mouse_pos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
transform.LookAt(mouse_pos);
float x = getX(transform.position, mouse_pos);
float y = transform.position.y > mouse_pos.y ? -0.03F : 0.03F;
rigidbody.AddForce(new Vector3(x, 0, transform.position.z), ForceMode.VelocityChange);
Debug.Log(x.ToString() + y.ToString());
}
if (transform.position.y < -5 | transform.position.y > 5) {
Destroy(transform.gameObject);
}
rigidbody.AddForce(Vector3.down, ForceMode.Force);
}
}
我尝试了更多,发现使用rigidbody.velocity()
比使用rigidbody.AddForce( rigidbody.AddForce()
更好,所以替换rigidbody.AddForce(new Vector3(x, 0, transform.position.z), ForceMode.VelocityChange);
带rigidbody.velocity = new Vector3(x, y, transform.position.z);
(将x
和y
替换为速度,它应该可以工作。请注意,这会替换速度,因此所有运动都将停止)
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