Projectile Motion

http://www.phy.hk/wiki/englishhtm/ThrowABall.htm

http://www.rabidgeek.net/physics-applets/projectile-motion/

http://blog.daum.net/kimjisune/15

http://blog.daum.net/sexyguy085101/8

 

 

using UnityEngine;
using System.Collections;

public class Controller : MonoBehaviour {

    public Transform bullet;   // 포물체

    private float _tx;
    private float _ty;
    private float _v;
    private float _g = 9.8f;

    private bool _isShoot = false;
    private float _tic = 0.5f;

    private float init_speed = 20f;
    private float init_angle = 78;

    private float _t;

    void Awake()
    {
       
    }
 
 void Start () {
 
 }
 
 void Update () {
        if (this._isShoot) {
            if (bullet.position.y >= 0) {
                this._tic -= Time.deltaTime;

                this._v = this._g * Time.deltaTime;

                this._tx = (this.init_speed * Mathf.Cos(this.init_angle * Mathf.Deg2Rad) * Time.deltaTime);
                this._ty = this.init_speed * (Mathf.Sin(this.init_angle * Mathf.Deg2Rad) * this._tic) - ((this._v * this._tic) / 2);

                bullet.Translate(this._tx, this._ty * Time.deltaTime, 0);
            }
        }

 }

    void OnGUI() {
        if( GUI.Button(new Rect(0, 0, 100, 100), "Shoot")){
            Debug.Log("shoot!");
            this._isShoot = true;
           
        }
    }

   

}