using UnityEngine;
using System.Collections;
using System.Collections.Generic; //Allows us to use Lists.
using UnityEngine.UI; //Allows us to use UI.
public class GameManager : MonoBehaviour
{
//Time to wait before starting level, int seconds.
public float levelStartDelay = 2f;
//Delay between each Player turn.
public float turnDelay = 0.1f;
//Starting value for Player food points.
public int playerFoodPoints = 100;
//Static instance of GameManager which allows it to be accessed by any other script.
public static GameManager instance = null;
//Boolean to check if it's players turn, hidden in inspector but public.
[HideInInspector] public bool playersTurn = true;
//Text to display current level number.
private Text levelText;
//Image to block out level as levels are being set up, background for levelText.
private GameObject levelImage;
//Store a reference to our BoardManager which will set up the level.
private BoardManager boardScript;
//Current level number, expressed in game as "Day 1".
private int level = 1;
//List of all Enemy units, used to issue them move commands.
private List<Enemy> enemies;
//Boolean to check if enemies are moving.
private bool enemiesMoving;
//Boolean to check if we're setting up board, prevent Player from moving during setup.
private bool doingSetup = true;
//Awake is always called before any Start functions
void Awake()
{
//Check if instance already exists
if (instance == null)
//if not, set instance to this
instance = this;
//If instance already exists and it's not this:
else if (instance != this)
//Then destroy this. This enforces our singleton pattern, meaning there can only ever be one instance of a GameManager.
Destroy(gameObject);
//Sets this to not be destroyed when reloading scene
DontDestroyOnLoad(gameObject);
//Assign enemies to a new List of Enemy objects.
enemies = new List<Enemy>();
//Get a component reference to the attached BoardManager script
boardScript = GetComponent<BoardManager>();
//Call the InitGame function to initialize the first level
InitGame();
}
//This is called each time a scene is loaded.
void OnLevelWasLoaded(int index)
{
//Add one to our level number.
level++;
//Call InitGame to initialize our level.
InitGame();
}
//Initializes the game for each level.
void InitGame()
{
//While doingSetup is true the player can't move, prevent player from moving while title card is up.
doingSetup = true;
//Get a reference to our image LevelImage by finding it by name.
levelImage = GameObject.Find("LevelImage");
//Get a reference to our text LevelText's text component by finding it by name and calling GetComponent.
levelText = GameObject.Find("LevelText").GetComponent<Text>();
//Set the text of levelText to the string "Day" and append the current level number.
levelText.text = "Day " + level;
//Set levelImage to active blocking player's view of the game board during setup.
levelImage.SetActive(true);
//Call the HideLevelImage function with a delay in seconds of levelStartDelay.
Invoke("HideLevelImage", levelStartDelay);
//Clear any Enemy objects in our List to prepare for next level.
enemies.Clear();
//Call the SetupScene function of the BoardManager script, pass it current level number.
boardScript.SetupScene(level);
}
//Hides black image used between levels
void HideLevelImage()
{
//Disable the levelImage gameObject.
levelImage.SetActive(false);
//Set doingSetup to false allowing player to move again.
doingSetup = false;
}
//Update is called every frame.
void Update()
{
//Check that playersTurn or enemiesMoving or doingSetup are not currently true.
if(playersTurn || enemiesMoving || doingSetup)
//If any of these are true, return and do not start MoveEnemies.
return;
//Start moving enemies.
StartCoroutine (MoveEnemies ());
}
//Call this to add the passed in Enemy to the List of Enemy objects.
public void AddEnemyToList(Enemy script)
{
//Add Enemy to List enemies.
enemies.Add(script);
}
//GameOver is called when the player reaches 0 food points
public void GameOver()
{
//Set levelText to display number of levels passed and game over message
levelText.text = "After " + level + " days, you starved.";
//Enable black background image gameObject.
levelImage.SetActive(true);
//Disable this GameManager.
enabled = false;
}
//Coroutine to move enemies in sequence.
IEnumerator MoveEnemies()
{
//While enemiesMoving is true player is unable to move.
enemiesMoving = true;
//Wait for turnDelay seconds, defaults to .1 (100 ms).
yield return new WaitForSeconds(turnDelay);
//If there are no enemies spawned (IE in first level):
if (enemies.Count == 0)
{
//Wait for turnDelay seconds between moves, replaces delay caused by enemies moving when there are none.
yield return new WaitForSeconds(turnDelay);
}
//Loop through List of Enemy objects.
for (int i = 0; i < enemies.Count; i++)
{
//Call the MoveEnemy function of Enemy at index i in the enemies List.
enemies[i].MoveEnemy ();
//Wait for Enemy's moveTime before moving next Enemy,
yield return new WaitForSeconds(enemies[i].moveTime);
}
//Once Enemies are done moving, set playersTurn to true so player can move.
playersTurn = true;
//Enemies are done moving, set enemiesMoving to false.
enemiesMoving = false;
}
}
using UnityEngine;
using System.Collections;
public class SoundManager : MonoBehaviour
{
//Drag a reference to the audio source which will play the sound effects.
public AudioSource efxSource;
//Drag a reference to the audio source which will play the music.
public AudioSource musicSource;
//Allows other scripts to call functions from the SoundManager
public static SoundManager instance = null;
//The lowest a sound effect will be randomly pitched.
public float lowPitchRange = .95f;
//The highest a sound effect will be randomly pitched.
public float highPitchRange = 1.05f;
void Awake ()
{
//Check if there is already an instance of SoundManager
if (instance == null)
//if not, set it to this.
instance = this;
//If instance already exists:
else if (instance != this)
//Destroy this, this enforces our singleton pattern so there can only be one instance of SoundManager.
Destroy (gameObject);
//Set SoundManager to DontDestroyOnLoad so that it won't be destroyed when reloading our scene.
DontDestroyOnLoad (gameObject);
}
//Used to play single sound clips.
public void PlaySingle(AudioClip clip)
{
//Set the clip of our efxSource audio source to the clip passed in as a parameter.
efxSource.clip = clip;
//Play the clip.
efxSource.Play ();
}
//RandomizeSfx chooses randomly between various audio clips and slightly changes their pitch.
public void RandomizeSfx (params AudioClip[] clips)
{
//Generate a random number between 0 and the length of our array of clips passed in.
int randomIndex = Random.Range(0, clips.Length);
//Choose a random pitch to play back our clip at between our high and low pitch ranges.
float randomPitch = Random.Range(lowPitchRange, highPitchRange);
//Set the pitch of the audio source to the randomly chosen pitch.
efxSource.pitch = randomPitch;
//Set the clip to the clip at our randomly chosen index.
efxSource.clip = clips[randomIndex];
//Play the clip.
efxSource.Play();
}
}
using UnityEngine;
using System.Collections;
using UnityEngine.UI; //Allows us to use UI.
//Player inherits from MovingObject, our base class for objects that can move, Enemy also inherits from this.
public class Player : MovingObject
{
//Delay time in seconds to restart level.
public float restartLevelDelay = 1f;
//Number of points to add to player food points when picking up a food object.
public int pointsPerFood = 10;
//Number of points to add to player food points when picking up a soda object.
public int pointsPerSoda = 20;
//How much damage a player does to a wall when chopping it.
public int wallDamage = 1;
//UI Text to display current player food total.
public Text foodText;
//1 of 2 Audio clips to play when player moves.
public AudioClip moveSound1;
//2 of 2 Audio clips to play when player moves.
public AudioClip moveSound2;
//1 of 2 Audio clips to play when player collects a food object.
public AudioClip eatSound1;
//2 of 2 Audio clips to play when player collects a food object.
public AudioClip eatSound2;
//1 of 2 Audio clips to play when player collects a soda object.
public AudioClip drinkSound1;
//2 of 2 Audio clips to play when player collects a soda object.
public AudioClip drinkSound2;
//Audio clip to play when player dies.
public AudioClip gameOverSound;
//Ussed to store a reference to the Player's animator component.
private Animator animator;
//Used to store Player food points total during level.
private int food;
//Used to store locaiton of screen touch origin for mobile controls.
private Vector2 touchOrigin = -Vector2.one;
//Start overrides the Start function of MovingObject
protected override void Start ()
{
//Get a component reference to the Player's animator component
animator = GetComponent<Animator>();
//Get the current food point total stored in GameManager.instance between levels.
food = GameManager.instance.playerFoodPoints;
//Set the foodText to reflect the current player food total.
foodText.text = "Food: " + food;
//Call the Start function of the MovingObject base class.
base.Start ();
}
//This function is called when the behaviour becomes disabled or inactive.
private void OnDisable ()
{
//When Player object is disabled, store the current local food total in the GameManager so it can be re-loaded in next level.
GameManager.instance.playerFoodPoints = food;
}
private void Update ()
{
//If it's not the player's turn, exit the function.
if(!GameManager.instance.playersTurn) return;
int horizontal = 0; //Used to store the horizontal move direction.
int vertical = 0; //Used to store the vertical move direction.
//Check if we are running either in the Unity editor or in a standalone build.
#if UNITY_STANDALONE || UNITY_WEBPLAYER
//Get input from the input manager, round it to an integer and store in horizontal to set x axis move direction
horizontal = (int) (Input.GetAxisRaw ("Horizontal"));
//Get input from the input manager, round it to an integer and store in vertical to set y axis move direction
vertical = (int) (Input.GetAxisRaw ("Vertical"));
//Check if moving horizontally, if so set vertical to zero.
if(horizontal != 0)
{
vertical = 0;
}
//Check if we are running on iOS, Android, Windows Phone 8 or Unity iPhone
#elif UNITY_IOS || UNITY_ANDROID || UNITY_WP8 || UNITY_IPHONE
//Check if Input has registered more than zero touches
if (Input.touchCount > 0)
{
//Store the first touch detected.
Touch myTouch = Input.touches[0];
//Check if the phase of that touch equals Began
if (myTouch.phase == TouchPhase.Began)
{
//If so, set touchOrigin to the position of that touch
touchOrigin = myTouch.position;
}
//If the touch phase is not Began, and instead is equal to Ended and the x of touchOrigin is greater or equal to zero:
else if (myTouch.phase == TouchPhase.Ended && touchOrigin.x >= 0)
{
//Set touchEnd to equal the position of this touch
Vector2 touchEnd = myTouch.position;
//Calculate the difference between the beginning and end of the touch on the x axis.
float x = touchEnd.x - touchOrigin.x;
//Calculate the difference between the beginning and end of the touch on the y axis.
float y = touchEnd.y - touchOrigin.y;
//Set touchOrigin.x to -1 so that our else if statement will evaluate false and not repeat immediately.
touchOrigin.x = -1;
//Check if the difference along the x axis is greater than the difference along the y axis.
if (Mathf.Abs(x) > Mathf.Abs(y))
//If x is greater than zero, set horizontal to 1, otherwise set it to -1
horizontal = x > 0 ? 1 : -1;
else
//If y is greater than zero, set horizontal to 1, otherwise set it to -1
vertical = y > 0 ? 1 : -1;
}
}
//End of mobile platform dependent compilation section started above with #elif
#endif
//Check if we have a non-zero value for horizontal or vertical
if(horizontal != 0 || vertical != 0)
{
//Call AttemptMove passing in the generic parameter Wall, since that is what Player may interact with if they encounter one (by attacking it)
//Pass in horizontal and vertical as parameters to specify the direction to move Player in.
AttemptMove<Wall> (horizontal, vertical);
}
}
//AttemptMove overrides the AttemptMove function in the base class MovingObject
//AttemptMove takes a generic parameter T which for Player will be of the type Wall, it also takes integers for x and y direction to move in.
protected override void AttemptMove <T> (int xDir, int yDir)
{
//Every time player moves, subtract from food points total.
food--;
//Update food text display to reflect current score.
foodText.text = "Food: " + food;
//Call the AttemptMove method of the base class, passing in the component T (in this case Wall) and x and y direction to move.
base.AttemptMove <T> (xDir, yDir);
//Hit allows us to reference the result of the Linecast done in Move.
RaycastHit2D hit;
//If Move returns true, meaning Player was able to move into an empty space.
if (Move (xDir, yDir, out hit))
{
//Call RandomizeSfx of SoundManager to play the move sound, passing in two audio clips to choose from.
SoundManager.instance.RandomizeSfx (moveSound1, moveSound2);
}
//Since the player has moved and lost food points, check if the game has ended.
CheckIfGameOver ();
//Set the playersTurn boolean of GameManager to false now that players turn is over.
GameManager.instance.playersTurn = false;
}
//OnCantMove overrides the abstract function OnCantMove in MovingObject.
//It takes a generic parameter T which in the case of Player is a Wall which the player can attack and destroy.
protected override void OnCantMove <T> (T component)
{
//Set hitWall to equal the component passed in as a parameter.
Wall hitWall = component as Wall;
//Call the DamageWall function of the Wall we are hitting.
hitWall.DamageWall (wallDamage);
//Set the attack trigger of the player's animation controller in order to play the player's attack animation.
animator.SetTrigger ("playerChop");
}
//OnTriggerEnter2D is sent when another object enters a trigger collider attached to this object (2D physics only).
private void OnTriggerEnter2D (Collider2D other)
{
//Check if the tag of the trigger collided with is Exit.
if(other.tag == "Exit")
{
//Invoke the Restart function to start the next level with a delay of restartLevelDelay (default 1 second).
Invoke ("Restart", restartLevelDelay);
//Disable the player object since level is over.
enabled = false;
}
//Check if the tag of the trigger collided with is Food.
else if(other.tag == "Food")
{
//Add pointsPerFood to the players current food total.
food += pointsPerFood;
//Update foodText to represent current total and notify player that they gained points
foodText.text = "+" + pointsPerFood + " Food: " + food;
//Call the RandomizeSfx function of SoundManager and pass in two eating sounds to choose between to play the eating sound effect.
SoundManager.instance.RandomizeSfx (eatSound1, eatSound2);
//Disable the food object the player collided with.
other.gameObject.SetActive (false);
}
//Check if the tag of the trigger collided with is Soda.
else if(other.tag == "Soda")
{
//Add pointsPerSoda to players food points total
food += pointsPerSoda;
//Update foodText to represent current total and notify player that they gained points
foodText.text = "+" + pointsPerSoda + " Food: " + food;
//Call the RandomizeSfx function of SoundManager and pass in two drinking sounds to choose between to play the drinking sound effect.
SoundManager.instance.RandomizeSfx (drinkSound1, drinkSound2);
//Disable the soda object the player collided with.
other.gameObject.SetActive (false);
}
}
//Restart reloads the scene when called.
private void Restart ()
{
//Load the last scene loaded, in this case Main, the only scene in the game.
Application.LoadLevel (Application.loadedLevel);
}
//LoseFood is called when an enemy attacks the player.
//It takes a parameter loss which specifies how many points to lose.
public void LoseFood (int loss)
{
//Set the trigger for the player animator to transition to the playerHit animation.
animator.SetTrigger ("playerHit");
//Subtract lost food points from the players total.
food -= loss;
//Update the food display with the new total.
foodText.text = "-"+ loss + " Food: " + food;
//Check to see if game has ended.
CheckIfGameOver ();
}
//CheckIfGameOver checks if the player is out of food points and if so, ends the game.
private void CheckIfGameOver ()
{
//Check if food point total is less than or equal to zero.
if (food <= 0)
{
//Call the PlaySingle function of SoundManager and pass it the gameOverSound as the audio clip to play.
SoundManager.instance.PlaySingle (gameOverSound);
//Stop the background music.
SoundManager.instance.musicSource.Stop();
//Call the GameOver function of GameManager.
GameManager.instance.GameOver ();
}
}
}