28. Oktober 2011

Some basic functions for a simple 2D game.

<pre>//Joachim Hummel
//17.11.2011

int levelsizeX = 500;
int levelsizeY = 500;
int playerKeyCode = 0;
int playerposX = levelsizeX / 2;
int playerposY = levelsizeY / 2;
int playersizeX = 20;
int playersizeY = 20;
int playerstep = 1;
int playerrotation = 0;

void setup(){
frameRate(30);
size(levelsizeX,levelsizeY);
fill(0);
}

void draw(){
println(playerrotation);
background(255);
 text("You pressed Key "+keyCode+". "+"Now your player is positioned at:",10,30);
  text("X " + playerposX,10,50);
  text("Y " + playerposY,10,70);  

  pushMatrix();
translate(playerposX,playerposY);
rotate(radians(playerrotation));
rect(-playersizeX/2,-playersizeY/2,playersizeX,playersizeY);

  popMatrix();
  
  move();

}

void keyPressed()
{
  
  playerKeyCode = keyCode;
 
}

void move() {
 
  switch(keyCode)
  {
    case 37: //Left
    playerposX = playerposX-playerstep;
    playerrotation = -45;
    break;
    case 38: //Up
    playerposY = playerposY-playerstep;
    playerrotation = 0;
break;
    case 39: //Right
    playerposX = playerposX+playerstep;
    playerrotation = 45;
break;
    case 40://Down
    playerposY = playerposY+playerstep;
    playerrotation = 180;

  }
 
  
  if ((playerposX-playersizeX) < 0)
    {
      playerposX= 0+playersizeX;
      text("Stop!",10,90);
    }
  if ((playerposX) > width-playersizeX)
    {
      playerposX=width-playersizeX;
            text("Stop!",10,90);

    }
  if ((playerposY) < 0)
    {
      playerposY=0;
            text("Stop!",10,90);

    }
  if ((playerposY) > height-playersizeY)
    {
      playerposY=height-playersizeY;
            text("Stop!",10,90);

    }
  
}