// updates the snake by checking for changes in direction before getting the direction,
// and determines if the snake is colliding into something, moving or eating a fruit
int Snake::updateSnake(const sf::Keyboard::Key& dir, sf::Vector2f fruitPos) {
playerMove.setDirection(dir);
// what's worse, creating a new temporary movementDir everytime or calling getDirection 4x?
sf::Keyboard::Key movementDir = playerMove.getDirection();
if (collision()) {
return 2;
}
Vector2f nextPos = head->shape.getPosition();
if (movementDir == sf::Keyboard::Up) {
nextPos.y -= pixelSizeY;
}
if (movementDir == sf::Keyboard::Down) {
nextPos.y += pixelSizeY;
}
if (movementDir == sf::Keyboard::Left) {
nextPos.x -= pixelSizeX;
}
if (movementDir == sf::Keyboard::Right) {
nextPos.x += pixelSizeX;
}
if (nextPos == fruitPos) {
eatFruit(nextPos);
return 1;
} else {
moveDir(nextPos);
}
return 0;
}
void loop(uint16_t* cnt)
{
if (gameStage == Welcome) {
displayWelcomePage(&gameStage, &snake, &fruit);
} else if (gameStage == Ongoing) {
checkButtonsPress( );
if (Button_Up && snake.dir != Down) {
snake.dir = 1;
} else if (Button_Down && snake.dir != Up) {
snake.dir = 2;
} else if (Button_Left && snake.dir != Right) {
snake.dir = 3;
} else if (Button_Right && snake.dir != Left) {
snake.dir = 4;
}
updateSnakeLocation(&snake);
eatFruit(&snake, &fruit);
} else {
displayGameOverPage(&gameStage);
}
// reset counter
*cnt = 0;
}