gamification

Unity3D Game Engine – Get Mouse Button – Physic.Raycast – Destroy GameObject

Destroy Every ‘hit’ GameObject!

Create a scene with:

– Main Camera
– Cube
– Empty Object, assign Destroy.js:

#pragma strict


function Update(){
    // if you press Mouse Button
    if (Input.GetMouseButtonDown(0)){ // if you press Left Mouse Button -> GetMouseButtonDown(0) 
        var hit: RaycastHit;
        var ray = Camera.main.ScreenPointToRay(Input.mousePosition); // it sends a ray from Camera.main
        if (Physics.Raycast(ray, hit)){ // if it hits something         
       
            Destroy(hit.transform.gameObject); // destroy every hit object
        }
    }
 
}// End Update

Unity3D – GetMouseButton – PhysicRaycast – Get GameObject script Component

Create a scene with:

– Cube, attach the script ‘BoomScript.js’

#pragma strict

function Start () {
}

function Update () {
}

function Boom(){
Debug.Log("Kaboooom!");
}

– Main Camera, attach the script ‘Raycast.js’

#pragma strict


function Update(){
    // if you press Mouse Button
    if (Input.GetMouseButtonDown(0)){ // if you press Left Mouse Button -> GetMouseButtonDown(0) 
        var hit: RaycastHit;
        var ray = Camera.main.ScreenPointToRay(Input.mousePosition); // it sends a ray from Camera.main
        if (Physics.Raycast(ray, hit)){ // if it hits something          
          
            // Get Script attached to the GameObject 
            var boomScript : BoomScript = hit.collider.GetComponent(BoomScript);

    		if (boomScript != null) {// if it exists
        	boomScript.Boom(); // execute the function Boom() of BoomScript
   	    	}
        }
    }
 
}// End Update()

Play, click over the Cube, in the console the message will be ‘Kaboooom!’.

For italian people: come funziona?

1. Se viene cliccato il tasto sinistro del mouse

2. parte un raggio dalla Main Camera

3. se colpisce qualcosa ottieni il Component ‘BoomScript’, cioè lo script BoomScript.js

4. se non è nullo, cioè esiste, avvia all’interno di BoomScript.js la funzione Boom()

5. function Boom() manda il messaggio ‘Kaboooom!’ alla console di Unity3D.

Unity3D Game Engine – Get Mouse Button – Physic.Raycast – Hit GameObject

Physic.Raycast is useful if you need to know the exact point where the mouse pointer is.

Create a scene with:

– Main Camera
– Cube
– Empty Object, assign GetMouseClick.js:

#pragma strict

function Update(){
    // if you press Left Mouse Button -> GetMouseButtonDown(0) 
    if (Input.GetMouseButtonDown(0)){
        var hit: RaycastHit;
        var ray = Camera.main.ScreenPointToRay(Input.mousePosition); // it sends a ray from Camera.main
        if (Physics.Raycast(ray, hit)){ // if it hits something        

            var object = hit.transform.gameObject; // if the ray hits a GameObject
 
            Debug.Log("Clicked!");
            // Do something...
        }
    }
 
}

Play and click over the Cube

NOTICE: You can assign the script at every object in the scene