using UnityEngine;
using System.Collections;

public class Mission : MonoBehaviour {

	public	Transform[]			spawnPoints;
	public	string[]			directions;
	public	float[]				civilistsSpawnsEasy;
	public	float[]				civilistsSpawnsNormal;
	public	float[]				civilistsSpawnsHard;
	public	float[]				zombieSpawnsEasy;
	public	float[]				zombieSpawnsNormal;
	public	float[]				zombieSpawnsHard;

	GUIStyle largeFont;

	public Font MyFont;
	public	float				startTime;
	private	float				ast;


	///


	public	float				maxTime;

	public	int					minSaved;
	public	int					minKilled;


	public	Transform			Zombie;
	public	Transform			Civilist;

	///

	private	int					mode;

	public	Texture2D			failTexture;
	public	Texture2D			WonTexture;
	public	Texture2D			mainMenuTexture;
	public	Texture2D			nextTexture;
	public	Texture2D			restartTexture;
	public	Texture2D			skip5Texture;  ///

	private	bool				won;
	private	bool				failed;

	public	AudioClip			endAudio;

	// Use this for initialization
	void Start ()

	{
		Invoke( "End", maxTime + startTime );
		mode = PlayerPrefs.GetInt( "Mode" );
		won =false;
		failed = false;
		ast = Time.time;
		if( mode == 1 )
		{
			for( int i = 0; i < civilistsSpawnsEasy.Length; i++ )
			{
				SendMessage( "SpawnCivi", i + startTime );
				SendMessage( "SpawnZombie", i + startTime );
			}
		}
		if( mode == 2 )
		{
			for( int i = 0; i < civilistsSpawnsNormal.Length; i++ )
			{
				SendMessage( "SpawnCivi", i + startTime );
				SendMessage( "SpawnZombie", i + startTime );
			}
		}
		if( mode == 3 )
		{
			for( int i = 0; i < civilistsSpawnsHard.Length; i++ )
			{
				SendMessage( "SpawnCivi", i + startTime );
				SendMessage( "SpawnZombie", i + startTime );
			}
		}

		largeFont = new GUIStyle();
		largeFont.fontSize = 32;
	}


	IEnumerator SpawnCivi( int i )
	{
		if( mode == 1 )
		{
			if( i < civilistsSpawnsEasy.Length && civilistsSpawnsEasy[i] != null )
				yield return new WaitForSeconds( civilistsSpawnsEasy[i] );
		}

		else if( mode == 2 )
		{
			if( i < civilistsSpawnsNormal.Length && civilistsSpawnsNormal[i] != null )
				yield return new WaitForSeconds( civilistsSpawnsNormal[i] );
		}

		else if( mode == 3 )
		{
			if( i < civilistsSpawnsHard.Length && civilistsSpawnsHard[i] != null )
				yield return new WaitForSeconds( civilistsSpawnsHard[i] );
		}

		if( mode <= 3 && i < spawnPoints.Length && i < directions.Length )
		{
			Transform c = Instantiate( Civilist, spawnPoints[i].position, Quaternion.identity ) as Transform;
			c.SendMessage( directions[i] );
			SendMessage( "SpawnCivi", i );
		}
	}
	IEnumerator SpawnZombie( int i )
	{
		if( mode == 1 )
		{
			if( i < zombieSpawnsEasy.Length && zombieSpawnsEasy[i] != null )
				yield return new WaitForSeconds( zombieSpawnsEasy[i] );
		}

		else if( mode == 2 )
		{
			if( i < zombieSpawnsNormal.Length && zombieSpawnsNormal[i] != null )
				yield return new WaitForSeconds( zombieSpawnsNormal[i] );
		}

		else if( mode == 3 )
		{
			if( i < zombieSpawnsHard.Length && zombieSpawnsHard[i] != null )
				yield return new WaitForSeconds( zombieSpawnsHard[i] );
		}

		if( mode <= 3 && i < spawnPoints.Length && i < directions.Length )
		{
			Transform c = Instantiate( Zombie, spawnPoints[i].position, Quaternion.identity ) as Transform;
			c.SendMessage( directions[i] );
			SendMessage( "SpawnZombie", i );
		}
	}

	void End()
	{
		audio.clip = endAudio;
		audio.Play();
		if( CivilistManager.killedZombies >= minKilled && CivilistManager.savedCivilists >= minSaved )
		{
			Win ();
		}
		else
		{
			Fail ();
		}
	}

	void Fail()
	{
		failed = true;
		Time.timeScale = 0;
	}

	void Win()
	{
		won = true;
		Time.timeScale = 0;
	}

	void OnGUI()


	{
		GUI.skin.font = MyFont;
		GUI.Label( new Rect( 0,0, Screen.width/6, 20 ), "<color=white>Civilians saved:</color>" + CivilistManager.savedCivilists + " / " + minSaved, largeFont );
		GUI.Label( new Rect( 0,33, Screen.width/6, 20 ), "<color=lightblue>Time left:</color>" + (int) (ast+maxTime - Time.time), largeFont );
		GUI.Label( new Rect( 0,66, Screen.width/6, 20 ), "<color=red>Zombies killed:</color>" + CivilistManager.killedZombies + " / " + minKilled, largeFont );
		if( GUI.Button( new Rect( Screen.width - Screen.width/10,0, Screen.width/10, 40 ), restartTexture) )
		{
			mode = 1000;
			CancelInvoke();
			Start ();
			Time.timeScale = 1;
			Application.LoadLevel( Application.loadedLevel );
		}


		if( GUI.Button( new Rect( Screen.width - Screen.width/10,40, Screen.width/10, 40 ), skip5Texture) ) //////
		{
			CancelInvoke( "End" );

			Invoke( "End", 1 );
		}

		if( won )
		{
			GUI.DrawTexture( new Rect( Screen.width/3, Screen.height/3, Screen.width/3, Screen.height/20 ), WonTexture );
			if( GUI.Button( new Rect( Screen.width/3, Screen.height/3 + Screen.height/20, Screen.width/6, Screen.height/20 ), mainMenuTexture ) )
			{
				Time.timeScale = 1;
				Application.LoadLevel( 0 );
			}
			if( GUI.Button( new Rect( Screen.width/3 + Screen.width/6, Screen.height/3 + Screen.height/20, Screen.width/6, Screen.height/20 ), nextTexture ) )
			{
				Time.timeScale = 1;
				Application.LoadLevel( Application.loadedLevel + 1 );
			}
		}
		if( failed )
		{
			GUI.DrawTexture( new Rect( Screen.width/3, Screen.height/3, Screen.width/3, Screen.height/10 ), failTexture );
			if( GUI.Button( new Rect( Screen.width/3, Screen.height/3 + Screen.height/10, Screen.width/6, Screen.height/20 ), mainMenuTexture ) )
			{
				Time.timeScale = 1;
				Application.LoadLevel( 0 );
			}
			if( GUI.Button( new Rect( Screen.width/3 + Screen.width/6, Screen.height/3 + Screen.height/10, Screen.width/6, Screen.height/20 ), restartTexture ) )
			{
				mode = 1000;
				CancelInvoke();
				Start ();
				Time.timeScale = 1;
				Application.LoadLevel( Application.loadedLevel );
			}
		}
	}

}