[Unity 4] Coin Crazy

Game design

• Player character
• Stage
• Coin
• Obstacle
• Generator for coin and obstacle
• Game Controller

Create stage

• Create Cube and change Scale to (100, 1, 100)
• Change Position to (0, -0.5, 0)
• Add texture

• Create Cube and change Position to (0, 0.5, 0)

• Create Directional Lights
  • Create Directional Light
  • Change Position to (0, 0, 0) and Rotation to (90, 0, 0)
  • Change Intensity to 0.5
  • Create Directional Light
  • Change Position to (0, 0, 0) and Rotation to (-90, 0, 0)
  • Change Intensity to 0.2
• Create Physic Material
  • Create folder and change Name to Physic Material
  • Create Physic Material in the folder and change Name to Default Physic Material

  

  • Change Dynamic Friction to 0.2, Static Friction to 0.2 and Bounciness to 0

  

  • Edit>Project Settings>Physics
  • Open Physics Manager in Inspector View
  • Drag and drop to Default Physic Material in Physics Manager

  

• Set Camera
  • Change camera Position to (0, 7, -10), Rotation to (30, 0, 0) and Field of View to 30
  • Change Near to 0.3 and Far to 50 in Clipping Planes
• Organize name and hierarchy

  

Use character

• Import file
  • Download Character Pack: Free Samp in Asset Store

  

• Deploy character
  • Open DemoScene in character Asset folder

  

  • Copy character and paste to game Scene

  

  • Set Bounce Combine to minimum
  • Change Jump Force to 6
    

Implement coin and obstacle

• Create coin and obstacle
  • Download Old Coin in Asset Store

  

  • Download Ball Pack in Asset Store

  

  • Open Presentation Scene in Old Coin
  • Copy coin and paste to game Scene
  • Change Scale and Rotation
  • Open Material folder and change Color to yellow in Inspertor in Coin Object

  

  • Open Ball Pack
  • copy SpikeBall and paste to game Scene
  • Change Scale and Position
• ShortMoveController.js

  var velocity : float = 8.0;
  var moveDelay : float = 1.0;
  var sustainTime : float = 3.0;

  function Start(){
    yield WaitForSeconds(moveDelay);

    var player : GameObject = GameObject.FindWithTag("Player");
    if(player != null){
      var direction : Vector3 = (player.transform.position - transfor.position).normalized;
      rigidbody.AddForce(direction * velocity, ForceMode.VelocityChange);
    }

    yield WaitForSeconds(sustainTime);
    Destroy(gameObject);
  }

• Add ShortMoveController.js to Coin, SpikeBall
• Change Tag of character to Player
  

Create generator

• Generator.js

  var intervalMin : float = 0.5;
  var intervalMax : float = 1.5;
  var coinRate : float = 0.3;

  var coinPrefab : GameObject;
  var spikeBallPrefab : GameObject;

  function Start(){
    while(true){
      yield WaitForSeconds(Random.Range(intervalMin, intervalMax));

      var Prefab : GameObject = Random.value < coinRate ? coinPrefab : spikeBallPrefab;
      var theta : float = Random.Range(0.0, Mathf.PI * 2.0);
      var position : Vector3 = Vector3(Mathf.Cos(theta), 0.0, Mathf.Sin(theta)) * 5.5;
      position.y = 2.5;
      Instantiate(prefab, position, Quaternion.identity);
    }
  }

• Create Empty Game Object and change Name to Generator
• Drag and drop Generator.js to Generator
• Prefab Coin and SpikeBall
• Drag and drop each prefabs to coinPrefab and spikePrefab in Generator.js

Messaging for getting coin and demage

• Set layer
  • Create layer and change Name to Character and Moving Object

  

  • Set Layer of character Game Object to Character
  • Set Layer of Coin and SpikeBall Prefab to Moving Object
  • Set Matrix to not collide Charater Layer and Moving Objects Layer

  

  • Check Is Trigger in Inspector of C_man_1_FBX2013 Game Object of character
• Create sender script
  • Coin.js

    function OnTriggerEnter(other : Collider){
      other.gameObject.SendMessage("CatchCoin", 1);
      Destroy(gmaeObject);
    }
  

• Drag and drop Coin.js to Coin Prefab
• SpikeBall.js

    function OnTriggerEnter(other : Collider){
      other.gameObject.SendMessage("ApplyDamage", 10);
      Destroy(gmaeObject);
    }
  

• Drag and drop SpikeBall.js to SpikeBall Prefab

• Create receiver script

  • PlayerStatus.js

    private var life : int = 100;
    private var score : int = 0;

    function CatchCoin(amount : int){
      score += amount;
    }

    function ApplyDamage(amount : int){
      life -= amount;

      if (life <= 0){
        Destroy(transform.parent.gameObject);
      }
    }

    function OnGUI(){
      var rect : Rect = Rect(0, 0, Screen.width, Screen.height);
      GUI.Label(rect, "LIFE: " + life.ToString() + " / SCORE: " + score.ToString());
    }
  

Improve visual presentation

• DamageEffector.js

  private var effectFlag : boolean;
  private var originalColor : Color;

  function Start(){
    originalColor = render.material.color;
  }

  function Update(){
    if(effectFlag){
      renderer.material.color = Color.red * Mathf.Abs(Mathf.Sin(40.0 * Time.time));
    }
  }

  function ApplyDamage(amount : int){
    effectFlag = true;
    yield WaitForSeconds(0.3);
    effectFlag = false;
    renderer.material.color = originalColor;
  }

• Drag and drop DamageEffector.js to character Game Object
  

Apply sound

• Import sound file
  • Download Sound Pack Free Pack in Asset Store

  

• Click C_man_1_FBX2013 Game Object and click Component>Audio>Audio Source

• Change Audio Clip to buy and uncheck Play On Awake in Audio Source in Inspector

• PlayerSoundEffector.js

  function CatchCoin(amount : int){
    audio.Play();
  }

• Drag and drop PlayerSoundEffector.js to character Game Object
  

• PlayerSoundEffector.js(change)

  var coinSE : AudioClip;
  var damageSE : AudioClip;

  function CatchCoin(amount : int){
    audio.PlayOneShot(coinSE);
  }

  function ApplyDamage(amount : int){
    audio.PlayOneShot(damageSE);
  }

• Change demage sound