Handling collision in grid based game (Snake)

by wixy0   Last Updated September 10, 2019 22:13 PM - source

I'm trying to implement smooth movement in my snake game, so far everything is working well except when it comes to collision with edges. Basically there is not time to make a turn, I don't know how to explain it better.

void UpdateSnake(Snake *snake, float timeStep)
    float f = CalculateTime(snake->head->position.x, snake->head->position.y, timeStep);

    snake->head->position.x += (snakeSpeed * fabs(f) * direction.x);
    snake->head->position.y += (snakeSpeed * fabs(f) * direction.y);

timeStep = (1.0f / 60.0f) * 1000.0f (ms)
snakeSpeed = 0.5

Algorithm: When making turn (so key is pressed) I'm calculating time needed to get to the closest grid aligned point, if there is space for another step f = timeStep otherwise f is that time.

Snake repository Everything is in Game.c and GameObjects.c

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