Dear all interested readers,


I am currently making a game in Processing. I am done with the game itself, but I have problems with the visuals.

I want to draw a cross on my mouse that stretches over the entire canvas. It does that now, but when I move the mouse, the old cross is still standing at the old position. I cant use background(0);, because then I will lose all the images.

How can I rewrite the code so that everything stays on the screen, except the cross?


Thanks in advance!



Code:




int x,y;
float[][] oudeLocatie=new float[20000][2];
int count=0;
int menu=0;
PFont font;


int laatstex;
int laatstey;


void setup(){
  font= loadFont("Serif-48.vlw");
  textAlign(CENTER);
  textFont(font,24);
  frameRate(6);
  size(screen.width,screen.height);
  background(0);
}

void draw(){
 
    if(menu==1){

  
 ellipseMode(CENTER);


float x = random(0,screen.width);
float y = random(0,screen.height);


  fill(255,0,0);


  ellipse(x,y,10,10);
 
   
    float waarde = 255;
   
          waarde = dist(mouseX,mouseY,laatstex,laatstey);

          fill(0,255,0);


    ellipse(mouseX,mouseY,10,10);


   for(int a=10;a<count+1;a++){
  if(dist(mouseX,mouseY,laatstex,laatstey)>-1 && dist(mouseX,mouseY,laatstex,laatstey)<8 ){

           fill(0,0,255);


    ellipse(mouseX,mouseY,10,10);
   
    }
 
 

 for(int e=10;e<count+1;e++){
  if(dist(mouseX,mouseY,laatstex,laatstey)>-1 && dist(mouseX,mouseY,laatstex,laatstey)<2 ){
      menu=2;

    }


  for(int i=1;i<count+1;i++){
    if(dist(mouseX,mouseY,oudeLocatie[i][0],oudeLocatie[i][1])>0 && dist(mouseX,mouseY,oudeLocatie[i][0],oudeLocatie[i][1])<10 ){
      println(count);

      menu=2;
    }
    }
    }
    }

    oudeLocatie[count][0]=x;
  oudeLocatie[count][1]=y;
  count++;
  }
  if(menu==0){
    background(255);
    fill(0);
    text("Run, you fools!",width/2,height/2);
   
   
   
  }
  if(menu==2){
        fill(255);
    text(count,width/2,100);
    text("Game Over",width/2,height/2);
  }
laatstex = mouseX;
laatstey = mouseY;

stroke(255);
          line(mouseX,0,mouseX,screen.height);
          line(0,mouseY,screen.width,mouseY);

}

void mousePressed(){
 
  if(menu==0){
    menu=1;
    background(0);

  }
  if(menu==2){

    menu=1;
    count=0;
    int[][] oudeLocatie=new int[1000][3];
    background(0);
  }
 
}