Bad Code Coding Challenge #41 - Card Match Game

char[][] nums;
boolean[][] matched;
boolean[][] flipped;

int nRows = 4;
int nCols = 4;

boolean win = false;
float winTime = 0f;

void setup() {
  frameRate(60);
  size(500,500);
  ArrayList<Integer> l = new ArrayList<Integer>();
  for(int i = 0; i < (nRows * nCols)/2; i++) {
   l.add(i+65);
   l.add(i+65);
  }
  nums = new char[nRows][nCols];
  for(int r = 0; r < nRows; r++) {
   for(int c = 0; c < nCols; c++) {
     int idx = (int)random(0,l.size());
      nums[r][c] = (char)((int)l.get(idx));
      l.remove(idx);
   }
  }
  matched = new boolean[nRows][nCols];
  flipped = new boolean[nRows][nCols];
  textAlign(CENTER);
}

void draw() {
  background(#03CEFF);
  textSize(50);
  for(int r = 0; r < nRows; r++) {
   for(int c = 0; c < nCols; c++) {
       if(matched[r][c] || flipped[r][c]) {
        fill(#FAB505);
       } else {
         fill(#FFD66C);
       }
       rect(40 + 80 * c, 40 + 110 * r, 60, 90);
       if(matched[r][c] || flipped[r][c]) {
        fill(#000000);
        text(nums[r][c], 40 + 80 * c + 30, 40 + 110 * r + 45);
       }
        if(!win && !matched[r][c] && mouseX > 40 + 80 * c && mouseX < 40 + 80 * c + 60 && mouseY > 40 + 110 * r && mouseY < 40 + 110 * r + 90) {
         fill(255,255,255,128);
         rect(40 + 80 * c, 40 + 110 * r, 60, 90);
        }
   }
  }
  if(win) {
   if(winTime > 0f) winTime -= 1/60f;
   if(winTime < 0f) {
     fill(255,255,255,200);
     noStroke();
     rect(0,0,width,height);
     stroke(0);
     fill(0);
     textSize(100);
     text("you win", width/2, height/2);
   }
  }
}

void mousePressed() {
  if(win) return;
  int flippedCol = -1, flippedRow = -1;
  for(int r = 0; r < nRows; r++) {
   for(int c = 0; c < nCols; c++) {
      if(flipped[r][c]) {
      flippedCol = c;
      flippedRow = r;
      break;
     }
    }
  }
  for(int r = 0; r < nRows; r++) {
   for(int c = 0; c < nCols; c++) {
     if(matched[r][c]) continue;
    boolean otherFlipe = (flippedCol > -1 && flippedRow > -1);
    if(mouseX > 40 + 80 * c && mouseX < 40 + 80 * c + 60 && mouseY > 40 + 110 * r && mouseY < 40 + 110 * r + 90) {
      if(r == flippedRow && c == flippedCol) {
       flipped[r][c] = false;
       return;
      }
      if(otherFlipe) {
        flipped[flippedRow][flippedCol] = false;
       if(nums[flippedRow][flippedCol] == nums[r][c]) {
        matched[flippedRow][flippedCol] = true;
        matched[r][c] = true;
       }
      } else {
       flipped[r][c] = true;
      }
      int numMatched = 0;
      for(int rr = 0; rr < nRows; rr++) {
       for(int cc = 0; cc < nCols; cc++) {
         if(matched[rr][cc]) numMatched++;
       }
      }
      if(numMatched == nRows * nCols) {
       win = true;
       winTime = 1f;
      }
      return;
    }
   }
  }
}