GameCamp! andGame Dev @ DavisIntroduction to Scripting in Unity®

Create Standard 3D Project

Unity® Interface

Create Cube▼Create

►3D Object ►Cube

Add a Script ComponentName: ColorChanger

public Color color;

Void Start{GetComponent<MeshRenderer>().material.color = color;}

TestSee that while the cube is white in the scene view, when the game runs, the cube changes to the assigned color

Add Another Script ComponentName: Mover

public Vector3 movementVector = Vector3.right;

Void Update{transform.position += movementVector * Time.deltaTime;}

TestNotice that the cube only moves to the right indefinitely

Add More Code to Moverprivate Vector3 startPosition;

Void Start{startPosition = transform.position;}

Add More Code to MoverAfter transform.position in update

if (transform.position.x > startPosition.x + 1)movementVector = Vector3.left;else if (transform.position.x < startPosition.x – 1)movementVector = Vector3.right;

TestNow the cube should move back and forth when the game is run

Make the Scripts InteractMake changes to ColorChanger

public Color color1;public Color color2;

Make the Scripts InteractRevise the Start code:

Delete: GetComponent<MeshRenderer>().material.color = color;

Make the Scripts Interactvoid Update () {

if (GetComponent<Mover>().movementVector == Vector3.left)GetComponent<MeshRenderer>().material.color = color1;

elseGetcomponent<MeshRenderer>().material.color = color2;

}

TestThe cube should move back and forth and also change colors when changing directions

Create PrefabRename Cube in Hierarchy to SpecialCube

Drag SpecialCube into Assets

Create 2 more of these SpecialCubes from the prefab in Assets – drag from Assets into Hierarchy or Scene

TestAll the cubes are identical in behavior

Individualize CubesChange colors and movement vectors (X only) in the Inspector

Bold means values are set to different parameters than the initial prefab

Default values set when making the prefab

TestThe cubes should behave differently

Ball Rolling Tower Destroyer

Create a New 3D Project

Create:Terrain

Cube, add RigidBody componentSphere, add RigidBody component

Ball Rolling Tower Destroyer

Make sure cube and sphere are above terrain

Cube and sphere Ys should be set to .5 or higher

Use ‘W’ to show translation arrows

Ball Rolling Tower Destroyer

Add new script BallMover to sphere

http://pastebin.com/YpnvHxS2

Ball Rolling Tower Destroyer

Add SmoothFollow script from Imported Characters Assets – search in “Add Component”

Add as component to Camera, then assign follow target as sphere

TestRoll ball around and knock the cube

Duplicate cubeMake 5 levels of 3x3 using CTRL+D (duplicate) and holding CTRL when repositioning (snap 1 unit of distance)

TestTry destroying the tower… probably much harder to do

Adjust Mass of SphereIn RigidBody component to 10

TestSphere moves slower, since it is heavier, but is more effective

Adjust Mass of CubesGroup select all cubes (using CTRL or CMD)

Change mass to .15

TestKnock over everything!