// STM32 Blue Pill SPI LCD Example
// Simulation: https://wokwi.com/projects/374780854731040769

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

#define TFT_DC PB7
#define TFT_CS PB6
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);


int x = 160;
int y = 120;

int vx = 3;
int vy = 2;

int rayon = 10;
int rayon_large = 11;
void setup() {
  Serial.begin(115200);
  Serial.println("Wokwi Blue Pill SPI Demo Starting...");

  tft.begin();

  tft.fillScreen(ILI9341_BLACK);
}

void loop() {
  // Effacer l'ancien ballon
  tft.fillCircle(x, y, rayon_large, ILI9341_BLACK);

  // Déplacement
  x += vx;
  y += vy;

  // Rebond gauche/droite
  if (x <= rayon || x >= 320 - rayon) {
    vx = -vx;
  }

  // Rebond haut/bas
  if (y <= rayon || y >= 240 - rayon) {
    vy = -vy;
  }

  // Dessiner le ballon
  tft.fillCircle(x, y, rayon, ILI9341_RED);
  tft.fillScreen(ILI9341_BLACK);
  Serial.println (x + " : " + y);
}