《愤怒的小鸟》弹弓实现

using UnityEngine; using System.Collections; public class Ball : MonoBehaviour { private Vector3 MousePosition; private LineRenderer leftLine; private LineRenderer rightLine; void Start() { leftLine = GameObject.Find("Shootor").transform.Find("RopeL").transform.GetComponent<LineRenderer>(); leftLine = GameObject.Find("Shootor").transform.Find("RopeR").transform.GetComponent<LineRenderer>(); } void Update() { if(Input .GetMouseButton (0)) { MousePosition = Camera.main.ScreenToViewportPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, -2f)); transform.position = MousePosition; leftLine.SetPosition(0, new Vector3(MousePosition.x, MousePosition.y, MousePosition.z - 0.5f)); rightLine.SetPosition(0, new Vector3(MousePosition.x, MousePosition.y, MousePosition.z - 0.5f)); } if(Input .GetMouseButtonUp (0)) { MousePosition = Camera.main.ScreenToViewportPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, -2f)); transform.position = MousePosition; leftLine.SetPosition(0, new Vector3(MousePosition.x, MousePosition.y, MousePosition.z - 0.5f)); rightLine.SetPosition(0, new Vector3(MousePosition.x, MousePosition.y, MousePosition.z - 0.5f)); Vector3 left = new Vector3(-2f - MousePosition.x, 1.8f - MousePosition.y, -MousePosition.z); Vector3 right = new Vector3(2f - MousePosition.x, 1.8f - MousePosition.y, -MousePosition.z); Vector3 dir = (left + right).normalized; transform.GetComponent<Rigidbody>().useGravity = true; transform.GetComponent<Rigidbody>().AddForce(dir * 10f, ForceMode.Impulse); leftLine.SetPosition(0, new Vector3(0, 1.8f, 0)); rightLine.SetPosition(0, new Vector3(0, 1.8f, 0)); } } } 原文链接 ： 点击打开链接