String[] littleCars = {"camioncito.png","camioncito2.png","carrito.png","carrito2.png","carrito3.png"};
int minspace = 40;
int maxspace = 120;
int minvel = 1;
int maxvel = 5;
int carsSize = 40;
Sapo littleSapo;
int i,j,k;
Car[] mycars1;
Car[] mycars2;
Car[] mycars3;
int[] newVel = new int[3];
int[] newX = new int[3];
void setup() {
 size(400,200);
 mycars1 = new Car[6];
 mycars2 = new Car[6];
 mycars3 = new Car[6];
 cars(mycars1, 75, true);
 cars(mycars2, 105, false);
 cars(mycars3, 135, true);
 littleSapo = new Sapo(width/2, 165, 20, "sapito.png");
}
void draw() {
 j = 60;
 background(100);
 littleSapo.loadImg();
 house();
 while(j<height-40){
 i = 0;
 while(i<width){
 stroke(255,255,255);
 line(i, j,i+5,j);
 i= i+10;
 }
 j=j+30;
 }
 frameRate(30);
 int l = 0;
 while(l<mycars1.length){
 mycars1[l].move();
 mycars2[l].back();
 mycars3[l].move();
 if(littleSapo.hasty(mycars1[l])||littleSapo.hasty(mycars2[l])||littleSapo.hasty(mycars3[l])){
 littleSapo.setImage("sapitomuerto.png");
 littleSapo.loadImg();
 }
 if(mycars1[l].outScreen){
 if(l==0){
 if (mycars1[l].directionRight){
 newVel[0] = int (random(minvel,maxvel));
 newX[0] = 0;
 }else{
 newVel[0] = int (random(-maxvel,-minvel));
 newX[0] = width;
 }
 }
 change(mycars1[l], 0);
 }
 if(mycars2[l].outScreen){
 if(l==0){
 if (mycars2[l].directionRight){
 newVel[1] = int (random(minvel,maxvel));
 newX[1] = 0;
 }else{
 newVel[1] = int (random(-maxvel,-minvel));
 newX[1] = width;
 }
 }
 change(mycars2[l], 1);
 }
 if(mycars3[l].outScreen){
 if(l==0){
 if (mycars3[l].directionRight){
 newVel[2] = int (random(minvel,maxvel));
 newX[2] = 0;
 }else{
 newVel[2] = int (random(-maxvel,-minvel));
 newX[2] = width;
 }
 }
 change(mycars3[l], 2);
 }
 l++;
 }
}
void cars(Car[] autos, int y, boolean directionRight){
 k=0;
 int vel = 0;
 int space1 = 0;
 int space2 = 0;
 int nextX = 0;
 if (directionRight){
 vel = int (random(minvel,maxvel));
 space1 = maxspace*-1;
 space2 = minspace*-1;
 nextX = 0;
 }else{
 vel = int (random(-maxvel,-minvel));
 space1 = minspace;
 space2 = maxspace;
 nextX = width;
 }
 int ima = int(random(0,littleCars.length));
 while(k<autos.length){
 autos[k]=new Car(nextX,y,vel,carsSize,littleCars[ima],directionRight);
 nextX = nextX + int(random (space1, space2));
 ima = int(random(0,littleCars.length));
 k++;
 }
}
void house(){
 PImage pi = loadImage("casita.png");
 imageMode(CENTER);
 image(pi,22,25);
}
void change(Car car, int place){
 if (car.directionRight){
 newX[place] = newX[place] + int(random (maxspace*-1, minspace*-1));
 }else{
 newX[place] = newX[place] + int(random (minspace, maxspace));
 }
 car.changed(newX[place],newVel[place],littleCars[int(random(0,littleCars.length))]);
 car.outScreen = false;
}
void keyPressed( ){
 if(!littleSapo.died){
 if(key=='w'||key=='W'){
 if(littleSapo.getPosy() > 0){
 littleSapo.setPosy(littleSapo.getPosy() - 30);
 }
 }else if(key=='s'||key=='S'){
 if(littleSapo.getPosy() < height){
 littleSapo.setPosy(littleSapo.getPosy() + 30);
 }
 }else if(key=='a'||key=='A'){
 if(littleSapo.getPosx() > 0){
 littleSapo.setPosx(littleSapo.getPosx() - 30);
 }
 }else if(key=='d'||key=='D'){
 if(littleSapo.getPosx() < width){
 littleSapo.setPosx(littleSapo.getPosx() + 30);
 }
 }
 }
}
void mousePressed(){
 setup();
}
class Car
{
 private int posx;
 private int posy;
 private int velocity;
 private int carSize;
 private String image;
 boolean directionRight;
 boolean outScreen=false;
Car(int px, int py, int ve, int ta, String im, boolean adel) {
 posx = px;
 posy = py;
 velocity = ve;
 carSize = ta;
 image = im;
 directionRight = adel;
 }
 void setPosx(int x){posx=x;}
 void setPosy(int y){posy=y;}
 int getPosx(){return posx;}
 int getPosy(){return posy;}
 int getSize(){return carSize;}
 void move () {
 PImage b = loadImage(image);
 imageMode(CENTER);
 image(b,posx,posy,carSize,carSize/2);
 posx = posx + velocity;
 if (posx > width+carSize) {
 posx = -carSize;
 outScreen = true;
 }
 }
 void back (){
 PImage b = loadImage(image);
 imageMode(CENTER);
 pushMatrix();
 scale(-1,1);
 image(b,-posx,posy,carSize,carSize/2);
 popMatrix();
 posx = posx + velocity;
 if (posx < 0-carSize) {
 posx = width+carSize;
 outScreen = true;
 }
 }
 void changed(int x, int v, String i){
 posx = x;
 velocity = v;
 image = i;
 }
}
class Sapo{
 private int posx;
 private int posy;
 private int carSize;
 private String image;
 boolean died = false;
 Sapo(int px, int py, int ta, String im) {
 posx = px;
 posy = py;
 carSize = ta;
 image = im;
 }
 void loadImg(){
 PImage b = loadImage(image);
 imageMode(CENTER);
 image(b,posx,posy,carSize,carSize/2);
 }
 void setPosx(int x){posx=x;}
 void setPosy(int y){posy=y;}
 int getPosx(){return posx;}
 int getPosy(){return posy;}
 void setImage(String im){image = im;}
 boolean hasty(Car auto){
 int CmaxX = auto.getPosx()+(auto.getSize()/2);
 int CmaxY = auto.getPosy()+(auto.getSize()/2);
 int CminX = auto.getPosx()-(auto.getSize()/2);
 int CminY = auto.getPosy()-(auto.getSize()/2);
 int FmaxX = posx+(carSize/2);
 int FmaxY = posy+(carSize/2);
 int FminX = posx-(carSize/2);
 int FminY = posy-(carSize/2);
 if(FmaxX<CmaxX && FmaxX >CminX){
 if(FmaxY<CmaxY && FmaxY >CminY){
 died = true;
 }
 }
 if(FminX < CmaxX && FminX >CminX){
 if(FminY < CmaxY && FminY > CminY){
 died = true;
 }
 }
 return died;
 }
}

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