UŚ Survival processing

PImage dSenpai;
PImage uslogo;
PImage imgGameOver;
PImage imgTextDoYouWanna;
PImage initScreenBG;
PImage playerL;
PImage playerR;
PImage indeks;
PImage congratz;
PImage usg;

String[] tablica1 = {"", ""};
Platforma platform;
String pieklo = "";
int screen = 0; //initial screen
int platformWidth = 228, platformHeight = 216, platformSpeed = 3, platformDirection = 1; //platforma global variables
int playerSize = 130, playerWidth = 70;
int iloscWarunkow;
boolean playerDirection;
int playerSpeed = 14;
float playerPosX = 0;
float usX;
boolean lost = false;
ArrayList<Indeks> indeksy;
int points;


void setup()
{
  size(476,533);
  fill(0);
  textSize(40);

  playerDirection = true;
  uslogo = loadImage("uslogo.png");
  uslogo.resize(uslogo.width/3, uslogo.height/3);
  dSenpai = loadImage("dSaw.png");
  imgTextDoYouWanna = loadImage("play a game.png");
  imgTextDoYouWanna.resize(imgTextDoYouWanna.width/2,imgTextDoYouWanna.height/2);
  imgGameOver = loadImage("survivalFail.png");
  initScreenBG = loadImage("initScreenBG.png");
  playerL = loadImage("pL.png");
  playerR = loadImage("pR.png");
  indeks = loadImage("indeks.png");
  congratz = loadImage("congratz.png");
  usg = loadImage("survivallogo.png");

  indeksy = new ArrayList<Indeks>();


  float rand = random(0,width); //set-up for platform
  float randX = rand>=width-platformWidth ? rand-platformWidth : rand;
  platform = new Platforma(randX, 0);
  points = 0;
}

void draw()
{
  if(screen == 0)
    initScreen();
  else if(screen == 1)
     gameScreen();
  else if(screen == 2)
    gameOverScreen();
  else if(screen == 3)
    gameWonScreen();
}

void keyPressed()
{
  if(key=='a')
  {
    playerDirection = false;
    if(playerPosX>0)
      playerPosX -= playerSpeed;

  }
  if(key=='d')
  {
    playerDirection = true;
    if(playerPosX<width-playerWidth*1.26)
      playerPosX += playerSpeed;
  }

}

public void mousePressed()
{
  if(screen == 0)
  {
    points = 0;
    indeksy = new ArrayList<Indeks>();
    startSurvival();
  }
  else if(screen == 2 || screen == 3)
    screen = 0;
    //startSurvival();
}
//width/height
//screen functions
void initScreen()
{
  points = 0;
  lost = false;
  background(0);
  tint(100,0,0);
  image(initScreenBG,0,0);
  tint(255,255);
  textAlign(CENTER);
  image(usg, 0,0);
  image(imgTextDoYouWanna, height/2-randomVal33(), width/2+imgTextDoYouWanna.width+randomVal33());
  drawTv();
}
void drawTv()
{
  tint(randomVal75());
  image(dSenpai, 0, height-dSenpai.height);
  tint(255,255);
}
void gameScreen()
{
  if(!lost && points <25)
  {
    background(255);
    textSize(10);
    text("Current objective: Survive || Points: " + points, width/2, height-50);

    line(0, 450, 533, 450);
    drawPlayer(playerPosX);
    if(random(0,200)<10)
    {
      indeksy.add(new Indeks());
    }

    for(Indeks i : indeksy)
    {
      if(!i.zlapany)
      {
        i.move();
        i.display();
      }
    }
    image(uslogo, usX,0);
    platform.display();
    platform.move();
  }
  else if (lost) youLost();
  else if (points > 24 && !lost) youWon();

}

void gameOverScreen()
{
  image(imgGameOver,0,0);
  tekst("Przegrałeś || "+points+" punktów",width/2,25,255);
}

void gameWonScreen()
{
  background(0);
  congratz.resize(476,533);
  image(congratz,0,0);//(width/2)-0.5*congratz.width,0
}

void tekst(String info, float x, float y, int bg)
{
  color(bg,bg,bg);
  textSize(30);
  text(info, x, y);
}

void drawPlayer(float x)
{
  fill(255,255,255);
  stroke(255,255,255);
  rect(x, 320,90,130-1);
  if(playerDirection)
  {
    playerR.resize(90,130);
    image(playerR,x,320);
  }
  else
  {
    playerL.resize(90,130);
    image(playerL,x,320);
  }

  stroke(0,0,0);
}

void startSurvival()
{
  screen = 1;
}

void youLost()
{
  screen = 2;
}

void youWon()
{
  screen = 3;
}

float randomVal33()
{
  return random(-3,3);
}

float randomVal75()
{
  return random(75);
}

class Indeks
{
  float x, y;
  boolean zlapany;
  Indeks()
  {
    x = usX;
    y = 0;
    zlapany = false;
  }
  void move()
  {
    y+=3.2;
  }
  void display()
  {
    collision();
    if(!zlapany)
    {
      checkIfPlayground();
      image(indeks,x,y,80,30);
    }
  }
  void checkIfPlayground()
  {
    if(y>=450)
      lost=true;
  }

  void collision()
  {
    float xd = x+(0.5*80);
    float yd = y+(0.5*30);
    if((xd>=playerPosX && xd<=playerPosX+playerL.width) && (yd>=320 && yd<=320+playerL.height))
    {
      points++;
      zlapany = true;
    }
  }

}

class Gracz
{
  float x, y;
  Gracz(float x, float y)
  {
    rect(x,y,playerSize,playerWidth);
  }
}

class Platforma
{
  //size
  float y;
  Platforma(float x, float y)
  {
    usX = x;
    this.y = y;
  }
  void display()
  {
    fill(255,0,0);
    //tutaj
    fill(0,0,0);
  }
  void move()
  {
    if(usX>=width-uslogo.width && platformDirection == 1 || usX<=0 && platformDirection == -1)
      platformDirection*= -1;
      usX+=platformSpeed*platformDirection;
      //(width/2)-(uslogo.width/2)
  }
}