Drawing Image irray on screen, Slick Java

Mon, 22 Oct 2012 17:22:35 GMT

Hej alle!

- Har et problem med slick. N�r jeg starter spillet, bliver de initRedAndBlueBall k�rt uendeligt, eller, indtil den r�de bold spawner i purpBall. Problemet ser uimiddelbart til at v�re her:

Java kode

 public void initRedAndBlueBall() throws SlickException
     {                  
        //     Makes sure the red and the blue ball aren't too close
         for(int i = 0; i <= amountOfEatenBalls; i++)
         {
             // Get random cordinates for the red and blue ball.
             randomRedX[i] = random.nextInt(550) + 24;
             randomRedY[i] = random.nextInt(350) + 24;
             randomBlueX = random.nextInt(550) + 24;
             randomBlueY = random.nextInt(350) + 24;
             
             // Initialize the new Redball with a picture.
             redball[i] = new Image("res/RedBall.png");
             // Draws the red ball on the screen. 
             drawRedBall(randomRedX[i], randomRedY[i], redball[i]);
             
             if(isInTheRangeOf(randomRedX[i], randomBlueX, 30) == false)
             {
                 System.out.println("The red and the blue ball have good positions");
                 break;
             }
             else if(isInTheRangeOf(randomRedX[i], randomBlueX, 30) == true)
             {
                 System.out.println("The red and the blue ball are to close!");
                 System.out.println("Repositioning the red and blue ball");
             }  
         }
     }

- Her er resten af min kode

Game.java

Java kode

 package javagame;
 
 import org.newdawn.slick.*;
 import org.newdawn.slick.state.*;
 
 public class Game extends StateBasedGame
 {
    
    public static final String gamename = "Mini Game";
    public static final int menu = 0;
    public static final int play = 1;
    public static final int gameOver = 2;
    public static final int windowX = 600;
    public static final int windowY = 400;
    
    public Game(String gamename)
    {
       super(gamename);
       this.addState(new Menu(menu));
       this.addState(new Play(play));
       this.addState(new GameOver(gameOver));
    }
    
    public void initStatesList(GameContainer gc) throws SlickException
    {
       this.getState(menu).init(gc, this);
       this.getState(play).init(gc, this);
       this.enterState(menu);
    }
    
    public static void main(String[] args) 
    {
       AppGameContainer appgc;
       try
       {
          appgc = new AppGameContainer(new Game(gamename));
          appgc.setDisplayMode(windowX, windowY, false);
          appgc.start();
       }
       catch(SlickException e)
       {
          e.printStackTrace();
       }
    }
 
 }

Menu.java

Java kode

 package javagame;
 
 import org.lwjgl.input.Mouse;
 import org.newdawn.slick.*;
 import org.newdawn.slick.state.*;
 import org.newdawn.slick.MouseListener;
 
 public class Menu extends BasicGameState
 {
     Image PlayNow, PlayNowHover, ExitGame, ExitGameHover, PlayButton, ExitGameButton;
     int MousePosX;
     int MousePosY;
    
    public Menu(int state)  {}
    
    public void init(GameContainer gc, StateBasedGame sbg) throws SlickException
    {
        // Billederne er 125x26
        PlayNow = new Image("res/PlayNow.png");
        PlayNowHover = new Image("res/PlayNowHover.png");
        ExitGame = new Image("res/ExitGame.png");
        ExitGameHover = new Image("res/ExitGameHover.png");
        
        PlayButton = PlayNow;
        ExitGameButton = ExitGame;
    }
    
    public void render(GameContainer gc, StateBasedGame sbg, Graphics g) throws SlickException
    {
        // Framet er 600x400
        g.drawString(MousePosX + ", " + MousePosY, 500, 10);
        g.drawLine(0, 26, 600, 26);
        
        g.drawImage(PlayButton, 200, 100);
        g.drawImage(ExitGameButton, 200, 150);
        
        g.drawString("You move with the arrowkeys.", 200, 200);
        g.drawString("There's 1 rule:", 200, 215);
        g.drawString("Don't eat the red balls!", 200, 230);
        g.drawString("But you can enjoy the blue ones :- P", 200, 245);
    }
    
    public void update(GameContainer gc, StateBasedGame sbg, int delta) throws SlickException
    {
           Input input = gc.getInput();
           MousePosX = input.getMouseX();
           MousePosY = input.getMouseY();
           
           // PlayNow Hover or Normal
           if(MousePosX > 200 && MousePosX < 325     &&         MousePosY > 100 && MousePosY < 126)
           {
               PlayButton = PlayNowHover;
           }
           else
           {
               PlayButton = PlayNow;
           }
           //ExitGame Hover or Normal
           if(MousePosX > 200 && MousePosX < 325     &&         MousePosY > 150 && MousePosY < 176)
           {
               ExitGameButton = ExitGameHover;
           }
           else
           {
               ExitGameButton = ExitGame;
           }
           
           // Now the buttons have a function
           if(MousePosX > 200 && MousePosX < 325     &&         MousePosY > 100 && MousePosY < 126)
           {
               if(Mouse.isButtonDown(0))
               {
                   sbg.enterState(1);
               }
           }
           if(MousePosX > 200 && MousePosX < 325     &&         MousePosY > 150 && MousePosY < 176)
           {
               if(Mouse.isButtonDown(0))
               {
                   System.exit(0);
               }
           }
           
         
    } 
    
    public int getID()
    {
       return 0;
    }
 }

Play.java

Java kode

 package javagame;
 
 import org.newdawn.slick.*;
 import org.newdawn.slick.state.*;
 
 import java.util.Random;
 
 public class Play extends BasicGameState
 {
     Image ball, blueball;
     Image[] redball;
     Animation roll;   
     
     int[] duration = {200, 200};
     float defBallPosX = 300; // DEFAULT
     float defBallPosY = 200; // DEFAULT
     float ballPosX = 300; 
     float ballPosY = 200; 
     int MousePosX;
     int MousePosY;
     Random random;
     float[] randomRedX; // X for the RedBall.png
     float[] randomRedY; // Y for the RedBall.png
     float randomBlueX; // X for the BlueBall.png
     float randomBlueY; // Y for the BlueBall.png
     
     static int amountOfEatenBalls;
     
     boolean blueAndRedAreNotToClose;
     
     public Play(int state)
     {
         
     }
     
     public void init(GameContainer gc, StateBasedGame sbg) throws SlickException
     {
         ball = new Image("res/PurpBallNorm.png"); // 25x25 px
         Image[] images = {ball, ball};
         
         redball = new Image[50];
         blueball = new Image("res/BlueBall.png");
         
         roll = new Animation(images, duration, false);
         
         random = new Random();
         
         randomRedX = new float[50];
         randomRedY = new float[50];
         
         amountOfEatenBalls = 0;
     }
     
     public void render(GameContainer gc, StateBasedGame sbg, Graphics g) throws SlickException
     {
        //     The Window is 600x400
         g.drawString(MousePosX + ", " + MousePosY, 500, 10);
         
         g.drawLine(0, 26, Game.windowX, 26); // Ceiling
         g.drawLine(1, 26, 1, Game.windowY); // Left Wall
         g.drawLine(Game.windowX - 2, 26, Game.windowX - 2, Game.windowY - 2); // Right Wall
         g.drawLine(1, Game.windowY - 2, Game.windowX - 2, Game.windowY - 2); // Floor
         
         roll.draw(ballPosX, ballPosY);
         
         initRedAndBlueBall(); 
     }
     
     public void update(GameContainer gc, StateBasedGame sbg, int delta) throws SlickException
     {
               Input input = gc.getInput();
               MousePosX = input.getMouseX();
               MousePosY = input.getMouseY();
               
               if(input.isKeyDown(Input.KEY_UP))
                   ballPosY -= delta * .1f;
               else if(input.isKeyDown(Input.KEY_DOWN))
                   ballPosY += delta * .1f;
               else if(input.isKeyDown(Input.KEY_LEFT))
                   ballPosX -= delta * .1f;
               else if(input.isKeyDown(Input.KEY_RIGHT))
                   ballPosX += delta * .1f;
               
               blueBallTouch(); 
               
               for(int i = 0; i <= amountOfEatenBalls; i++)
               {
                   if(isInTheRangeOf(ballPosX, randomRedX[i], 25) == true && isInTheRangeOf(ballPosY, randomRedY[i], 25) == true)
                   {
                       System.out.println("Player has eaten a red ball!");
                       sbg.enterState(2);
                   }
               }
               
 //            Makes sure the ball can't run out of the window
               if(ballPosX <= 2)
               {
                   ballPosX += delta * .1f;
               }
               else if(ballPosX >= Game.windowX - 27)
               {
                   ballPosX -= delta * .1f;
               }
               else if(ballPosY <= 26)
               {
                   ballPosY += delta * .1f;
               }
               else if(ballPosY >= Game.windowY - 27)
               {
                   ballPosY -= delta * .1f;
               }
     } 
     
     public int getID() 
     {
         return 1;
     }
     
     public boolean isInTheRangeOf(float x, float y, float range)
     {
             float a = 0;
             float b = 0;
             
             if(x > y)
             {
                 a = x;
                 b = y;
             }
             else if(y > x)
             {
                 b = x;
                 a = y;
             }    
             
             if((a - b) <= range)
             {
                 return true;
             }
             else if((a - b) >= range)
             {
                 return false;
             }
             return true;
     }
     
     public void initRedAndBlueBall() throws SlickException
     {                  
        //     Makes sure the red and the blue ball aren't too close
         for(int i = 0; i <= amountOfEatenBalls; i++)
         {
             // Get random cordinates for the red and blue ball.
             randomRedX[i] = random.nextInt(550) + 24;
             randomRedY[i] = random.nextInt(350) + 24;
             randomBlueX = random.nextInt(550) + 24;
             randomBlueY = random.nextInt(350) + 24;
             
             // Initialize the new Redball with a picture.
             redball[i] = new Image("res/RedBall.png");
             // Draws the red ball on the screen. 
             drawRedBall(randomRedX[i], randomRedY[i], redball[i]);
             
             if(isInTheRangeOf(randomRedX[i], randomBlueX, 30) == false)
             {
                 System.out.println("The red and the blue ball have good positions");
                 break;
             }
             else if(isInTheRangeOf(randomRedX[i], randomBlueX, 30) == true)
             {
                 System.out.println("The red and the blue ball are to close!");
                 System.out.println("Repositioning the red and blue ball");
             }  
         }
     }
    
     public void drawRedBall(float x, float y, Image image)
     {
         Graphics g = new Graphics();
         g.drawImage(image, x, y);
     }
     
     public void blueBallTouch() throws SlickException
       {
            if(isInTheRangeOf(ballPosX, randomBlueX, 25) == true && isInTheRangeOf(ballPosY, randomBlueY, 25) == true)
         {
             amountOfEatenBalls++;
             
             initRedAndBlueBall();
         }
            else
            {
                
            }
    }
    
    public static int getAmountOfEatenBalls()
    {
        return amountOfEatenBalls;
    }
    
 }

GameOver.java

Java kode

 package javagame;
 
 import org.lwjgl.input.Mouse;
 import org.newdawn.slick.*;
 import org.newdawn.slick.state.*;
 
 public class GameOver extends BasicGameState
 {
     Image ExitGame, ExitGameHover, ExitGameButton;
     int MousePosX;
     int MousePosY;
     
     
     public GameOver(int state)
     {
         
     }
 
     public void init(GameContainer gc, StateBasedGame sbg) throws SlickException
     {
         ExitGame = new Image("res/ExitGame.png");
         ExitGameHover = new Image("res/ExitGameHover.png");
         
         ExitGameButton = ExitGame;
     }
 
     public void render(GameContainer gc, StateBasedGame sbg, Graphics g) throws SlickException
     {
         g.drawImage(ExitGameButton, 200, 100);
         g.drawString("You've eaten: " + Play.getAmountOfEatenBalls() + " balls!", 200, 190);
     }
 
     public void update(GameContainer gc, StateBasedGame sbg, int delta) throws SlickException
     {
         Input input = gc.getInput();
         MousePosX = input.getMouseX();
         MousePosY = input.getMouseY();
         
          if(MousePosX > 200 && MousePosX < 325     &&         MousePosY > 100 && MousePosY < 126)
           {
               ExitGameButton = ExitGameHover;
           }
           else
           {
               ExitGameButton = ExitGame;
           }
          
          if(MousePosX > 200 && MousePosX < 325     &&         MousePosY > 100 && MousePosY < 126)
           {
               if(Mouse.isButtonDown(0))
               {
                   System.exit(0);
               }
           }
     }
 
     public int getID()
     {
         return 2;
     }
 
 }

Problem med diagram, Slick/JLWGL

Wed, 03 Oct 2012 13:51:22 GMT

Hej allesammen! Jeg har et problem med Slick og JLWGL. Ved ikke om nogen af jer har arbejdet med biblioteket f�r, men har problem i f�lgende kode:

Java kode

 //    JUMP
        else if(input.isKeyDown(Input.KEY_W))
        {
            do
            {
               if(ballPosY < defBallPosY + 10)
               {
                   ballPosY -= delta * .1f;
               }
               else
               {
                   ballPosY += delta * .1f;
               }
            }
            while(ballPosY != defBallPosY);
            
            ballPosY = defBallPosY; // Sætter default BalPosY
        }

Hvis jeg k�rer programmet og trykker W svarer programmet ikke... Hvilket jeg ikke helt forst�r.

Her er resten af koden:

Game klassen

Java kode

 package javagame;
 
 import org.newdawn.slick.*;
 import org.newdawn.slick.state.*;
 
 public class Game extends StateBasedGame
 {
    
    public static final String gamename = "Mini Game";
    public static final int menu = 0;
    public static final int play = 1;
    
    public Game(String gamename)
    {
       super(gamename);
       this.addState(new Menu(menu));
       this.addState(new Play(play));
    }
    
    public void initStatesList(GameContainer gc) throws SlickException
    {
       this.getState(menu).init(gc, this);
       this.getState(play).init(gc, this);
       this.enterState(menu);
    }
    
    public static void main(String[] args) 
    {
       AppGameContainer appgc;
       try
       {
          appgc = new AppGameContainer(new Game(gamename));
          appgc.setDisplayMode(600, 400, false);
          appgc.start();
       }
       catch(SlickException e)
       {
          e.printStackTrace();
       }
    }
 
 }

Menu klassen:

Java kode

 package javagame;
 
 import org.newdawn.slick.*;
 import org.newdawn.slick.state.*;
 
 public class Menu extends BasicGameState
 {
    Image ball, ballSqueezed, map;
    Animation roll, squeeze, purpBall;
    
    int[] duration = {200,200};
    int defBallPosX = 0; // DEFAULT
    int defBallPosY = 175; // DEFAULT
    int ballPosX = 0; 
    int ballPosY = 175; 
    
    public Menu(int state)
    {
        
    }
    
    public void init(GameContainer gc, StateBasedGame sbg) throws SlickException
    {
        map = new Image("res/WorldMap.png");     
        ball = new Image("res/PurpBallNorm.png");                 // X: 24px         Y: 25px    
        ballSqueezed = new Image("res/PurpBallSqueezed.png");     // X: 8px         Y: 25px 
        
        Image[] rollPics = {ball, ball};
        roll = new Animation(rollPics, duration, false);
 
        Image[] squeezePics = {ballSqueezed, ballSqueezed}; 
        squeeze = new Animation(squeezePics, duration, false);
        
        purpBall = roll;
    }
    
    public void render(GameContainer gc, StateBasedGame sbg, Graphics g) throws SlickException
    {
        map.draw();
        
        g.setColor(Color.black);
        g.drawLine(0, 200, 600, 200);
        g.drawLine(100, 200, 100, 180);
        g.drawLine(150, 200, 150, 180);
        g.drawLine(225, 200, 225, 180);
        g.drawLine(275, 180, 275, 160);
        g.drawLine(350, 180, 350, 160);
        g.drawLine(400, 200, 400, 180);
        g.drawLine(450, 200, 450, 180);
        g.drawLine(500, 180, 500, 160);
        g.drawLine(550, 200, 550, 180);
        
        purpBall.draw(ballPosX, ballPosY);
    }
    
    public void update(GameContainer gc, StateBasedGame sbg, int delta) throws SlickException
    {
        Input input = gc.getInput();
        
        //    FORWARD
        if(input.isKeyDown(Input.KEY_D))
        {
            ballPosX += delta *.1f;
        }
        //    BACKWARD
        else if(input.isKeyDown(Input.KEY_A))
        {
            ballPosX -= delta * .1f;
        }
        //    JUMP
        else if(input.isKeyDown(Input.KEY_W))
        {
            do
            {
               if(ballPosY < defBallPosY + 10)
               {
                   ballPosY -= delta * .1f;
               }
               else
               {
                   ballPosY += delta * .1f;
               }
            }
            while(ballPosY != defBallPosY);
            
            ballPosY = defBallPosY; 
        } 
    } 
    
    public int getID()
    {
       return 0;
    }
 }

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