using UnityEngine;
using System.Collections;

public class WaveController : MonoBehaviour 
{
	//variables
	public float killTotal;
	public float wave;
	public float spawnRate;
	private GameObject[] goblinSize;
	public float waveOneKillGoal;
	public float waveTwoKillGoal;
	public float waveThreeKillGoal;
	public float waveFourKillGoal;
	public float victoryKillGoal;
	bool killGoalOne;
	bool killGoalTwo;
	bool killGoalThree;
	bool killGoalFour;
	bool victory;
	bool killGoalsMet;
	public SpawnGoblins goblinSpawning;
	private float timeSoFar;
	public float timeComplete;
	public int currentWave = 1;
	public AudioClip[] waveSound;
	public Transform playerChar;
	public  GUISkin customSkin;
	private int difficulty;
	
	
	
	// Use this for initialization
	void Start () 
	{
		difficulty = PlayerPrefs.GetInt("difficulty");
		AudioSource.PlayClipAtPoint(waveSound[0],playerChar.position);
		
		//switch the difficulty and based on the difficulty change the kill goals
		switch(difficulty)
			{
			case 0:
					//leave the settings as they are since they are so easy
					break;
			case 1:
					waveOneKillGoal *= 2;
					waveTwoKillGoal *= 2;
	 				waveThreeKillGoal *= 2;
					waveFourKillGoal *= 2;
					victoryKillGoal *= 2;
					break;
			case 2:
				waveOneKillGoal *= 4;
				waveTwoKillGoal *= 4;
	 			waveThreeKillGoal *= 4;
				waveFourKillGoal *= 4;
				victoryKillGoal *= 4;
				break;
			}
	}
	
	// Update is called once per frame
	void Update () 
	{
		
		//increment our time 
		timeSoFar += Time.deltaTime * 1;
		
		//find out how many goblins there are in the world
		goblinSize = GameObject.FindGameObjectsWithTag("Goblin");
		
		
				//Wave one met
				if(killTotal > waveOneKillGoal && !killGoalOne)
				{
					
					AudioSource.PlayClipAtPoint(waveSound[1],playerChar.position);
					killGoalOne = true;
					goblinSpawning.spawnRate -= 2.0F;
					currentWave += 1;
				}
				
				//Wave Two Met
				if(killTotal > waveTwoKillGoal && !killGoalTwo)
				{
					AudioSource.PlayClipAtPoint(waveSound[2],playerChar.position);
					killGoalTwo = true;
					goblinSpawning.spawnRate -= 2.0F;
					currentWave += 1;
				}
			
				//Wave three Met
				if(killTotal >  waveThreeKillGoal && !killGoalThree)
				{
					AudioSource.PlayClipAtPoint(waveSound[3],playerChar.position);
					killGoalThree = true;
					goblinSpawning.spawnRate -= 2.0F;
					currentWave += 1;
				}
		
				
				//Wave Four Met
				if(killTotal > waveFourKillGoal && !killGoalFour)
				{
					AudioSource.PlayClipAtPoint(waveSound[4],playerChar.position);
					killGoalFour = true;
					goblinSpawning.spawnRate -= 2.0F;
					currentWave += 1;
				}
		
				//Wave Four Met
				if( killTotal > victoryKillGoal && !victory && !killGoalsMet )
				{
					killGoalsMet = true;
					goblinSpawning.maxGoblins = 0;
					//currentWave += 1;
				}
		
				if(goblinSize.Length < 1 && killGoalsMet && !victory)
				{
					timeComplete = timeSoFar;
					victory = true;
				}
		
	}
	
	
	
	void OnGUI()
	{
		
		GUI.skin = customSkin;
		if(!victory)
		{
			/////////////////////////////////
			/////Draw the Current Wave///////
			/////////////////////////////////
			
				if(currentWave < 5)
				{
				GUI.Label(new Rect(Screen.width/2 - 180
						,40,Screen.width/4 ,40)
						,"Wave " + currentWave);
				}else
				{
					GUI.Label(new Rect(Screen.width/8
						,Screen.height/2 - 40,Screen.width/8 ,40)
						,"Final Wave");
				}
	
			
			
			///////////////////////////////////
			///////Draw timer and kill score///
			///////////////////////////////////
			GUI.Label(new Rect(Screen.width/8
						,Screen.height/4,Screen.width/8 ,40)
						,"Kills :" + Mathf.Round(killTotal).ToString());	
		
			GUI.Label(new Rect(Screen.width/8
						,Screen.height/2,Screen.width ,40)
						,"Time : Minutes  " +  (timeSoFar/60).ToString("n0")  + "seconds : " + (timeSoFar%60).ToString("n0"));
		}
		if(victory)
		{
			
			/////Draw the Time the player completed all waves and their total Kills
			GUI.Label(new Rect(Screen.width/2 - 80
						,Screen.height/2,Screen.width/4 + 90 ,90)
						,"Total Kills - " + Mathf.Round(killTotal).ToString() 
							+ ".  Completed " + currentWave + " Waves in " + (timeComplete/60).ToString("n0")
							+ " Minutes " +  (timeComplete%60).ToString("n2") + "seconds");
			
			
			
			//Draw restart and quit buttons for the player
			if (GUI.Button(new Rect(Screen.width/2 - 40,Screen.height/2 + 50,100,30),"Restart"))
			{
				Application.LoadLevel("Pariah Forest");
			}
		
			if (GUI.Button(new Rect(Screen.width/2 + 60,Screen.height/2 + 50,60,30),"Quit"))
			{
				Application.LoadLevel("Pariah Main Menu");
			}
		}
		
			
	}
	
	
	
	public void AddKill()
	{
		killTotal += 1;	
	}
	
	
	
	public void AddWave()
	{
		wave += 1;	
	}
	
	
}