Unity 포물선 운동 구현 (C#)

using UnityEngine;
 
using System.Collections;
 
public class ThrowSimulator : MonoBehaviour
 
{
 
    private Transform bullet;   // 포물체
 
    private float tx;
 
    private float ty;
 
    private float tz;
 
    private float v;
 
    public float g = 9.8f;
 
    private float elapsed_time;
 
    public float max_height;
 
    private float t;
 
    private Vector3 start_pos;
 
    private Vector3 end_pos;
 
 
 
    private float dat;  //도착점 도달 시간 
 
    
 
    public void Shoot(Transform bullet, Vector3 startPos, Vector3 endPos, float g, float max_height, System.Action onComplete)
 
    {
 
        start_pos = startPos;
 
        end_pos = endPos;
 
        this.g = g;
 
        this.max_height = max_height;
 
        this.bullet = bullet;
 
        this.bullet.position = start_pos;
 
 
 
        var dh = endPos.y - startPos.y;
 
        var mh = max_height - startPos.y;
 
        ty = Mathf.Sqrt(2 * this.g * mh);
 
 
 
        float a = this.g;
 
        float b = -2 * ty;
 
        float c = 2 * dh;
 
 
 
        dat = (-b + Mathf.Sqrt(b * b - 4 * a * c)) / (2 * a);
 
        
 
        tx = -(startPos.x - endPos.x) / dat;
 
        tz = -(startPos.z - endPos.z) / dat;
 
        
 
        this.elapsed_time = 0;
 
 
 
        StartCoroutine(this.ShootImpl(onComplete));
 
 
 
    }
 
 
 
    IEnumerator ShootImpl(System.Action onComplete)
 
    {
 
        while (true)
 
        {
 
            this.elapsed_time += Time.deltaTime;
 
 
 
            var tx = start_pos.x + this.tx * elapsed_time;
 
            var ty = start_pos.y + this.ty * elapsed_time - 0.5f * g * elapsed_time * elapsed_time;
 
            var tz = start_pos.z + this.tz * elapsed_time;
 
 
 
 
 
            var tpos = new Vector3(tx, ty, tz);
 
 
 
            bullet.transform.LookAt(tpos);
 
 
 
            bullet.transform.position = tpos;
 
 
 
            if (this.elapsed_time >= this.dat)
 
                break;
 
            
 
            yield return null;
 
        }
 
 
 
        onComplete();
 
    }
 
}
 
 
 
출처: https://smilejsu.tistory.com/1036 [{ Unity3D }]

높이보다 시작지점, 끝지점이 낮을경우는 동작 하지 않습니다. 

패키지 첨부 해요 

ThrowSimulation.unitypackage