003-unity3d Physics Engine-Example 2 dozen boxes

First, the basic knowledge point 1, coordinates, vectors, etc.

        if(Input.getmousebuttondown (0))        {            //1. Convert mouse coordinates to world coordinates because the mouse Z axis may not exist, it is customized to 3Vector3 Targetpos = Camera.main.ScreenToWorldPoint (NewVector3 (input.mouseposition.x, INPUT.MOUSEPOSITION.Y,3)); //2, each gameobject has transform.position position. //3, vector v2-v1 means v1 point to v2 vectorVector3 dir = targetpos-Camera.main.transform.position; //4. Add a force             This.gameobject.getcomponent<rigidbody> (). Addforce (dir*3, Forcemode.impulse); }

2. Dynamic creation of Game objects

        //left mouse button click        if(Input.getmousebuttondown (0) {gameobject gonew=gameobject.createprimitive (Primitivetype.cube); GoNew.transform.position=NewVector3 (3,3,0); Gonew.addcomponent<Rigidbody>(); Gonew.name="TestCube"; Go. Getcomponent<renderer> (). Material.color = color.red;        }

Create Game object: Gameobject.createprimitive (Primitivetype.cube)

Add Game Object Component:gonew.addcomponent<rigidbody> ();

Rigidbody, scripts, and all components under the component menu

3. Destroying objects

Gameobject GoS = Gameobject.find ("TestCube");
Destroy (GoS, 2);

Second, example-hit the box

1. Create a new project

2, increase the ground

3. Add a C # script

Automatic destruction of autodestory scripts

 Public class autodestory:monobehaviour{    // use of this for initialization    void  Start ()    {    }    //  Update is called once per frame    void  Update ()    {    }    void  onbecameinvisible ()    {        Destroy (this  . gameobject);}    }

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Initializing the Init.cs script

 Public classInit:monobehaviour {//Use this for initialization    voidStart () { for(inti =0; I <4; i++)        {             for(intj =0; J <4; J + +) {Gameobject go=gameobject.createprimitive (Primitivetype.cube); Go.transform.position=NewVector3 (I, J,-1); if(J%2==0) {go. Getcomponent<Renderer> (). Material.color =color.red; } go. AddComponent<Rigidbody>(); Go. AddComponent<AutoDestory>(); }        }    }    //Update is called once per frame    voidUpdate () {if(Input.getmousebuttondown (0) {gameobject gonew=gameobject.createprimitive (Primitivetype.sphere); GoNew.transform.position=Camera.main.transform.position; Gonew.addcomponent<Rigidbody>(); Gonew.addcomponent<AutoDestory>(); Vector3 Targetpos= Camera.main.ScreenToWorldPoint (NewVector3 (input.mouseposition.x, INPUT.MOUSEPOSITION.Y,3)); Gonew.getcomponent<Rigidbody> (). Addforce ((targetpos-camera.main.transform.position) *Ten, Forcemode.impulse); }    }}

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Interface effect

Hit the box effect

003-unity3d Physics Engine-Example 2 dozen boxes