#include "SPI.h"
#include "Adafruit_GFX.h"
#include "Adafruit_ILI9341.h"

const int TFT_CS = 10;
const int TFT_DC = 9;

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);

const int TILE_W = 15;
const int BOARD_W = 10 * TILE_W, BOARD_H = 20 * TILE_W;

bool board[10][20];

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  tft.begin();
  for (int i = 0; i < 8; i++) {
    pinMode(i, INPUT_PULLUP);
  }
  tft.fillScreen(ILI9341_BLACK);
  tft.drawRect(5, 5, BOARD_W + 2, BOARD_H + 2, ILI9341_WHITE);
  board[2][5] = 1;
}

void loop() {
  // put your main code here, to run repeatedly:
  tft.setTextColor(ILI9341_WHITE);
  tft.setCursor(0, 0);
  // Serial.println(digitalRead(5));
  delay(100);

  for (int i = 0; i < 10; i++) {
    for (int j = 0; j < 20; j++) {
      if (board[i][j]) {
        tft.fillRect(6 + i * TILE_W, 6 + j * TILE_W, TILE_W, TILE_W, ILI9341_BLUE);
      }
    }
  }
}