[英]Let object glide to mouse with constant speed Unity C#
我有一個子彈 object,它需要在按下鼠標時滑向鼠標(但釋放時應該停止)。 我嘗試了多種方法,但每次子彈加速時,都會以橢圓形圍繞鼠標轉圈(我也有重力)。 我怎樣才能讓它以恆定的速度向鼠標移動?
這是我的代碼:
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);
}
}
我嘗試了更多,發現使用rigidbody.velocity()
比使用rigidbody.AddForce( rigidbody.AddForce()
更好,所以替換rigidbody.AddForce(new Vector3(x, 0, transform.position.z), ForceMode.VelocityChange);
帶rigidbody.velocity = new Vector3(x, y, transform.position.z);
(將x
和y
替換為速度,它應該可以工作。請注意,這會替換速度,因此所有運動都將停止)
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