/**
* Script made by OMA [www.oma.netau.net]
**/

var concrete : AudioClip[];
var wood : AudioClip[];
var dirt : AudioClip[];
var metal : AudioClip[];
private var step : boolean = true;
var audioStepLengthWalk : float = 0.45;
var audioStepLengthRun : float = 0.25;

function OnControllerColliderHit (hit : ControllerColliderHit) {
var controller : CharacterController = GetComponent(CharacterController);

if (controller.isGrounded && controller.velocity.magnitude < 8 && controller.velocity.magnitude > 1 && hit.gameObject.tag == "Concrete"  && step == true || controller.isGrounded && controller.velocity.magnitude < 1 && controller.velocity.magnitude > 1 && hit.gameObject.tag == "Untagged" && step == true ) {
    WalkOnConcrete();
   } else if (controller.isGrounded && controller.velocity.magnitude > 3 && hit.gameObject.tag == "Concrete" && step == true || controller.isGrounded && controller.velocity.magnitude > 3 && hit.gameObject.tag == "Untagged" && step == true) {
    RunOnConcrete();
   } else if (controller.isGrounded && controller.velocity.magnitude < 3 && controller.velocity.magnitude > 5 && hit.gameObject.tag == "Wood" && step == true) {
    WalkOnWood();
   } else if (controller.isGrounded && controller.velocity.magnitude > 1 && hit.gameObject.tag == "Wood" && step == true) {
    RunOnWood();
   } else if (controller.isGrounded && controller.velocity.magnitude < 7 && controller.velocity.magnitude > 1 && hit.gameObject.tag == "Dirt" && step == true) {
    WalkOnDirt();
   } else if (controller.isGrounded && controller.velocity.magnitude > 8 && hit.gameObject.tag == "Dirt" && step == true) {
    RunOnDirt();
   } else if (controller.isGrounded && controller.velocity.magnitude < 7 && controller.velocity.magnitude > 1 && hit.gameObject.tag == "Metal" && step == true) {
    WalkOnMetal();
   } else if (controller.isGrounded && controller.velocity.magnitude > 8 && hit.gameObject.tag == "Metal" && step == true) {
    RunOnMetal();    
   }   
}

/////////////////////////////////// CONCRETE ////////////////////////////////////////
function WalkOnConcrete() {
   step = false;
   audio.clip = concrete[Random.Range(0, concrete.length)];
   audio.volume = 99.9;
   audio.Play();
   yield WaitForSeconds (audioStepLengthWalk);
   step = true;
}

function RunOnConcrete() {
   step = false;
   audio.clip = concrete[Random.Range(0, concrete.length)];
   audio.volume = 99.9;
   audio.Play();
   yield WaitForSeconds (audioStepLengthRun);
   step = true;
}   

////////////////////////////////// WOOD /////////////////////////////////////////////
function WalkOnWood() {
   step = false;
   audio.clip = wood[Random.Range(0, wood.length)];
   audio.volume = 79.1;
   audio.Play();
   yield WaitForSeconds (audioStepLengthWalk);
   step = true;
}

function RunOnWood() {
   step = false;
   audio.clip = wood[Random.Range(0, wood.length)];
   audio.volume = 79.1;
   audio.Play();
   yield WaitForSeconds (audioStepLengthRun);
   step = true;
}

/////////////////////////////////// DIRT //////////////////////////////////////////////
function WalkOnDirt() {
   step = false;
   audio.clip = dirt[Random.Range(0, dirt.length)];
   audio.volume = 99.1;
   audio.Play();
   yield WaitForSeconds (audioStepLengthWalk);
   step = true;
}

function RunOnDirt() {
   step = false;
   audio.clip = dirt[Random.Range(0, dirt.length)];
   audio.volume = 99.3;
   audio.Play();
   yield WaitForSeconds (audioStepLengthRun);
   step = true;
}

////////////////////////////////// METAL ///////////////////////////////////////////////
function WalkOnMetal() {   
   step = false;
   audio.clip = metal[Random.Range(0, metal.length)];
   audio.volume = 99.1;
   audio.Play();
   yield WaitForSeconds (audioStepLengthWalk);
   step = true;
}

function RunOnMetal() {
   step = false;
   audio.clip = metal[Random.Range(0, metal.length)];
   audio.volume = 99.3;
   audio.Play();
   yield WaitForSeconds (audioStepLengthRun);
   step = true;
}

@script RequireComponent(AudioSource)