[Unity算法]斜抛运动[通俗易懂]

 1 using System;  2 using UnityEngine;  3  4 public class ObliqueThrow : MonoBehaviour {  5  6 private readonly float gravity = -9.8f; //重力加速度  7 private Vector2 horizontalDir; //水平方向  8 private float startSpeed; //初速度  9 private float sinValue; //sin值 10 private float cosValue; //cos值 11 private Vector3 startPos; //开始位置 12 private float endY; //结束高度(地面高度) 13 private float timer; //运动消耗时间 14 private Action<GameObject> finishCallBack; //落地后的回调 15 private bool canMove = false; //能否运动 16 17 void Update() 18  { 19 if (!canMove) 20  { 21 return; 22  } 23 24 //移动过程 25 timer = timer + Time.deltaTime; 26 27 float xOffset = startSpeed * timer * cosValue * horizontalDir.x; 28 float zOffset = startSpeed * timer * cosValue * horizontalDir.y; 29 float yOffset = startSpeed * timer * sinValue + 0.5f * gravity * timer * timer; 30 31 Vector3 endPos = startPos + new Vector3(xOffset, yOffset, zOffset); 32 if (endPos.y < endY) 33  { 34 endPos.y = endY; 35 canMove = false; 36  } 37 transform.position = endPos; 38 39 //移动结束 40 if (!canMove) 41  { 42  finishCallBack(gameObject); 43 Destroy(this); 44  } 45  } 46 47 public void StartMove(Vector2 horizontalDir, float startSpeed, float angle, float endY, Action<GameObject> finishCallBack) 48  { 49 this.horizontalDir = horizontalDir; 50 this.startSpeed = startSpeed; 51 sinValue = Mathf.Sin(Mathf.Deg2Rad * angle); 52 cosValue = Mathf.Cos(Mathf.Deg2Rad * angle); 53 startPos = transform.position; 54 this.endY = endY; 55 timer = 0; 56 this.finishCallBack = finishCallBack; 57 canMove = true; 58  } 59 }

 1 using UnityEngine;  2 using System.Collections.Generic;  3  4 public class TestThrow : MonoBehaviour {  5  6 public GameObject testGo;  7 private bool isDebug = false;  8 private List<GameObject> drawGoList = new List<GameObject>();  9 10 void Update () 11  { 12 if (Input.GetKeyDown(KeyCode.Q)) 13  { 14 //半径为1的方向圆 15 float randomNum = Random.Range(0f, 1f);//[0, 1] 16 float x = randomNum * 2 - 1;//[-1, 1] 17 float z = Mathf.Sqrt(1 - x * x); 18 if (Random.Range(0f, 1f) > 0.5f) 19  { 20 z = -z; 21  } 22 23 isDebug = true; 24 ObliqueThrow obliqueThrow = testGo.AddComponent<ObliqueThrow>(); 25 obliqueThrow.StartMove(new Vector2(1, 0), 5f, 45f, 0f, (go) => { 26 isDebug = false; 27 Debug.Log("移动结束"); 28  }); 29  } 30 else if(Input.GetKeyDown(KeyCode.W)) 31  { 32 testGo.transform.position = new Vector3(0f, 5f, 0f); 33 for (int i = 0; i < drawGoList.Count; i++) 34  { 35  Destroy(drawGoList[i]); 36  } 37  drawGoList.Clear(); 38  } 39 40 if (isDebug) 41  { 42 GameObject go = GameObject.CreatePrimitive(PrimitiveType.Sphere); 43 go.transform.position = testGo.transform.position; 44 go.transform.localScale = new Vector3(0.1f, 0.1f, 0.1f); 45  drawGoList.Add(go); 46  } 47  } 48 }