Create random circles in a grid

Processing Coding Questions
14

I currently have this
Mainframe

final int GAMESTART = 1;
final int GAMEPLAYING = 2;
final int GAME_END = 3;
int gamestatus = GAMESTART;
final int SCREEN_HEIGHT = 800;
final int SCREEN_WIDTH = 1200;


void settings() {
  size ( SCREEN_WIDTH, SCREEN_HEIGHT);
}

void setup() {
  ellipseMode(CORNER);
}

void draw() {
  gamestatus();
}

void gamestatus() {
  if (gamestatus == GAMESTART) {
    gamestartmenu();
  } else if (gamestatus == GAMEPLAYING) {
    gamemainscreen();
  } else if (gamestatus == GAME_END) {
    //game_endscreen();
  }
}

void mousePressed() {
  to_maingame();
  add_decmines();
  add_dectreasures();
}

void keyPressed() {
  movementdiver();
}

No big changes here except for the size removal from setup and adding it into settings.
Start menu

final int YLOC_BUTTON = 200;
final int BUTTONSIZE = 50;
final float XLOC_BUTTON1 = SCREEN_WIDTH / 1.75;
final float XLOC_BUTTON2 = SCREEN_WIDTH / 1.5;
final float XLOC_BUTTON3 = SCREEN_WIDTH / 2.55;
final float XLOC_BUTTON4 = SCREEN_WIDTH / 3.4;
final int XRECTSIZE= 150;
final int YRECTSIZE = 100;
int amountmines = 1;
int amount_treasures = 1;
PImage photo;

void gamestartmenu() {
  //photo = loadImage("Background.jpg");
  //photo.resize(SCREEN_WIDTH, SCREEN_HEIGHT);
  //image(photo, 0, 0);
  drawsquares();
  drawbuttons();
  drawtexts();
}

void drawsquares() {
  int ysquare = height/6;
  float xsquare = width / 1.8;
  fill(#1144ff);
  drawsquare(width / 2.3, height - 50, XRECTSIZE, YRECTSIZE);
  drawsquare(xsquare, ysquare, XRECTSIZE + 50, YRECTSIZE - 50);
  drawsquare(xsquare / 2, ysquare, XRECTSIZE + 50, YRECTSIZE - 50);
}

void drawsquare(float xloc, int yloc, int xsize, int ysize) {  
  rect(xloc, yloc, xsize, ysize);
}

void drawtexts() {
  int textheight = height/5;
  final float YTEXTLOC = height / 2.9;
  final float XTEXTLOC = SCREEN_WIDTH / 1.71;
  fill(0);
  textSize(18);
  drawtext("Start game", width / 2.17, height - 20);
  drawtext("Diving for treasure", width/2.35, height/10);
  drawtext("Mines = " + amountmines, width / 3.2, textheight);
  drawtext("Treasures = " + amount_treasures, SCREEN_WIDTH / 1.7, textheight);
  fill(0);
  textSize(30);
  drawtext("-", XTEXTLOC, YTEXTLOC);
  drawtext("+", XTEXTLOC / 1.45, YTEXTLOC);
  drawtext("+", XTEXTLOC * 1.16, YTEXTLOC);
  drawtext("-", XTEXTLOC / 1.9, YTEXTLOC);
}

void drawtext(String text, float xtext, float ytext) {
  text(text, xtext, ytext);
}

void drawbuttons() {
  fill(0);
  drawbutton(XLOC_BUTTON1, YLOC_BUTTON, BUTTONSIZE);
  drawbutton(XLOC_BUTTON2, YLOC_BUTTON, BUTTONSIZE);
  drawbutton(XLOC_BUTTON3, YLOC_BUTTON, BUTTONSIZE);
  drawbutton(XLOC_BUTTON4, YLOC_BUTTON, BUTTONSIZE);
}

void drawbutton(float xloc, int yloc, int buttonsize) {
  rect(xloc, yloc, buttonsize, buttonsize);
}

void add_decmines() {
  if (over(XLOC_BUTTON4, YLOC_BUTTON, BUTTONSIZE, BUTTONSIZE)) {
    amountmines = amountmines - 1;
  }
  if (over(XLOC_BUTTON3, YLOC_BUTTON, BUTTONSIZE, BUTTONSIZE)) {
    amountmines = amountmines + 1;
  }
  if (amountmines < 0) {
    amountmines = 0;
  }
  if (amountmines > 10) {
    amountmines = 10;
  }
}

void add_dectreasures() {
  if (over(XLOC_BUTTON1, YLOC_BUTTON, BUTTONSIZE, BUTTONSIZE)) {
    amount_treasures = amount_treasures  - 1;
  }
  if (over(XLOC_BUTTON2, YLOC_BUTTON, BUTTONSIZE, BUTTONSIZE)) {
    amount_treasures  = amount_treasures + 1;
  }
  if (amount_treasures  < 0) {
    amount_treasures  = 0;
  }
  if (amount_treasures  > 10) {
    amount_treasures  = 10;
  }
}

void to_maingame() {
  if (over(width/2.3, height-50, XRECTSIZE, YRECTSIZE) && gamestatus == GAMESTART) {
    gamestatus = GAMEPLAYING;
    drawmines();
    drawtreasures();
  }
}

boolean over(float x, int y, int w, int h) {
  return (mouseX > x & mouseX < x + w & mouseY > y & mouseY < y + h);
}

In this tab, I added the boolean and used it for my mouseover if’s.
Also called the drawmines and drawtreasures in this tab as told.
No big changes overall too.
Main game

int xdiverloc = 0;
int ydiverloc= 0;
int score = 0;
int life = 3;
final int DIVERSIZE = 18;
final int COLS = 60;
final int ROWS = 40;
final int SCALE = 18;
boolean[][] minesArr = new boolean[COLS][ROWS];
boolean[][] treasuresArr = new boolean[COLS][ROWS];


void gamemainscreen() {
  background(255);
  drawgrid();
  drawdiver();
  drawscore();
  border();
  checkmineloc();
}

void setmines() {
  int i = (int)random(COLS);
  int j = (int)random(ROWS);
  minesArr[i][j] = true;
}

void set_treasures() {
  int i = (int)random(COLS);
  int j = (int)random(ROWS);
  treasuresArr[i][j] = true;
}

void checkmineloc() {
  for (int i = 0; i < COLS; i++) {
    for (int j = 0; j < ROWS; j++) {
      if ( minesArr[i][j] ) {
        if (xdiverloc == i && ydiverloc == j) {
          life = life - 1;
        }
      }
    }
  }
}

void drawgrid() {
  for (int i = 0; i < COLS; i++) {
    for (int j = 0; j < ROWS; j++) {
      int x = i * SCALE;
      int y = j * SCALE;
      fill(#add8e6);
      noStroke();
      rect(x, y, SCALE, SCALE);
      fill(255, 0, 0);
      if ( minesArr[i][j] ) {
        circle(x, y, SCALE);
      }
      fill(0, 0, 255);
      if ( treasuresArr[i][j] ) {
        circle (x, y, SCALE);
      }
    }
  }
}

void drawdiver() {
  fill(0);
  ellipse(xdiverloc, ydiverloc, DIVERSIZE, DIVERSIZE);
}

void movementdiver() {
  if (key == CODED) {
    if (keyCode == DOWN) {
      ydiverloc = ydiverloc + DIVERSIZE;
    }
  }
  if (key == CODED) {
    if (keyCode == RIGHT) {
      xdiverloc = xdiverloc + DIVERSIZE;
    }
  }
  if (key == CODED) {
    if (keyCode == LEFT) {
      xdiverloc = xdiverloc - DIVERSIZE;
    }
  }
  if (key == CODED) {
    if (keyCode == UP) {
      ydiverloc = ydiverloc - DIVERSIZE;
    }
  }
  if (key == ' ') {
  }
}

void border() {
  if (xdiverloc < width - width) {
    xdiverloc = width - width;
  }
  if (ydiverloc  < height - height) {
    ydiverloc = height - height;
  }
  if (xdiverloc > width - (SCREEN_WIDTH - 18*59) ) {
    xdiverloc = width - (SCREEN_WIDTH - 18*59);
  }
  if (ydiverloc > height - (SCREEN_HEIGHT - 18*39)) {
    ydiverloc = height - (SCREEN_HEIGHT - 18*39);
  }
}

void drawscore() {
  textSize(18);
  fill(0);
  text("Score = " + score, 20, height / 1.05);
  text("Life = " + life, 120, height / 1.05);
}

void drawmines() {
  for (int i = 0; i < amountmines; i++) {
    setmines();
  }
}

void drawtreasures() {
  for (int i = 0; i < amount_treasures; i++) {
    set_treasures();
  }
}

The game looks like this when running:

Picture
Picture.jpg1199×830 15.5 KB

When the diver is stepping on the red circle then he loses 1 life.
I tried to make it with this

void checkmineloc() {
  for (int i = 0; i < COLS; i++) {
    for (int j = 0; j < ROWS; j++) {
      if ( minesArr[i][j] ) {
        if (xdiverloc == i && ydiverloc == j) {
          life = life - 1;
        }
      }
    }
  }
}

however this does not work because i & j goes up to 60 and 40 respectively and does not mean the location.
What should be used here?

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