94 lines
3.5 KiB
C#
94 lines
3.5 KiB
C#
using UnityEngine;
|
|
using System.Collections;
|
|
|
|
public class Slingshot : MonoBehaviour
|
|
{
|
|
static private Slingshot s;
|
|
// fields set in the Unity Inspector pane
|
|
[Header("Set in Inspector")]
|
|
public GameObject prefabProjectile;
|
|
public float velocityMult = 8f;
|
|
public AudioClip stretchBandSound;
|
|
public AudioClip snapBandSound;
|
|
// fields set dynamically
|
|
[Header("Set Dynamically")]
|
|
public GameObject launchPoint;
|
|
public Vector3 launchPos;
|
|
public GameObject projectile;
|
|
public bool aimingMode;
|
|
private Rigidbody projectileRigidbody;
|
|
public AudioSource audioSource;
|
|
public float volume = 0.5f;
|
|
static public Vector3 LAUNCH_POS {
|
|
get {
|
|
if (s == null) return Vector3.zero;
|
|
return s.launchPos;
|
|
}
|
|
}
|
|
void Awake() {
|
|
s = this;
|
|
Transform launchPointTrans = transform.Find("LaunchPoint");
|
|
launchPoint = launchPointTrans.gameObject;
|
|
launchPoint.SetActive(false);
|
|
launchPos = launchPointTrans.position;
|
|
}
|
|
void OnMouseEnter() {
|
|
//print("Slingshot:OnMouseEnter()");
|
|
launchPoint.SetActive(true);
|
|
}
|
|
void OnMouseExit() {
|
|
//print("Slingshot:OnMouseExit()");
|
|
launchPoint.SetActive(false);
|
|
}
|
|
void OnMouseDown() {
|
|
// The player has pressed the mouse button while over Slingshot
|
|
aimingMode = true;
|
|
// Instantiate a projectile
|
|
projectile = Instantiate(prefabProjectile) as GameObject;
|
|
// Start it at the launchPoint
|
|
projectile.transform.position = launchPos;
|
|
// Set it to isKinematic for now
|
|
projectile.GetComponent<Rigidbody>().isKinematic = true;
|
|
// Set it to isKinematic for now
|
|
projectileRigidbody = projectile.GetComponent<Rigidbody>();
|
|
projectileRigidbody.isKinematic = true;
|
|
audioSource = GetComponent<AudioSource>();
|
|
audioSource.PlayOneShot(stretchBandSound, volume);
|
|
}
|
|
void Update() {
|
|
// If Slingshot is not in aimingMode, don't run this code
|
|
if (!aimingMode) return;
|
|
// Get the current mouse position in 2D screen coordinates
|
|
Vector3 mousePos2D = Input.mousePosition;
|
|
mousePos2D.z = -Camera.main.transform.position.z;
|
|
Vector3 mousePos3D = Camera.main.ScreenToWorldPoint(mousePos2D);
|
|
// Find the delta from the launchPos to the mousePos3D
|
|
Vector3 mouseDelta = mousePos3D - launchPos;
|
|
// Limit mouseDelta to the radius of the Slingshot SphereCollider
|
|
float maxMagnitude = this.GetComponent<SphereCollider>().radius;
|
|
if (mouseDelta.magnitude > maxMagnitude) {
|
|
mouseDelta.Normalize();
|
|
mouseDelta *= maxMagnitude;
|
|
}
|
|
// Move the projectile to this new position
|
|
Vector3 projPos = launchPos + mouseDelta;
|
|
projectile.transform.position = projPos;
|
|
// Get SlingshotBand and match point 1 with projectile
|
|
LineRenderer slingshotBand = s.GetComponentInChildren<LineRenderer>();
|
|
slingshotBand.SetPosition(1, mouseDelta);
|
|
|
|
if (Input.GetMouseButtonUp(0)) {
|
|
// The mouse has been released
|
|
aimingMode = false;
|
|
projectileRigidbody.isKinematic = false;
|
|
projectileRigidbody.velocity = -mouseDelta * velocityMult;
|
|
FollowCam.POI = projectile;
|
|
projectile = null;
|
|
MissionDemolition.ShotFired();
|
|
ProjectileLine.s.poi = projectile;
|
|
slingshotBand.SetPosition(1, new Vector3(0,0,0));
|
|
audioSource.PlayOneShot(snapBandSound, volume);
|
|
}
|
|
}
|
|
}
|