float void_wins(float so, float sn) {
// prefer one inside the void
if (in_wall(so) && in_void(sn))
return sn;
// prefer one inside the void
if (in_wall(sn) && in_void(so))
return so;
// `so' and `sn' are positive : prefer smaller (closer to the wall)
if (in_wall(so) && in_wall(sn))
return so < sn ? so : sn;
// `so' and `sn' are negative : prefer bigger (closer to the wall,
// with smaller abs)
return so < sn ? sn : so;
}
void
Hedgehog::update(float delta)
{
if (state == DYING)
{
if (die_sprite.is_finished())
remove();
die_sprite.update(delta);
}
else
{
sprite.update(delta);
bool was_on_ground = false;
if (on_ground())
{
was_on_ground = true;
if (velocity.y > 0)
{
velocity.y = 0;
pos.y = int(pos.y / TILE_SIZE) * TILE_SIZE + TILE_SIZE - 1;
}
if (direction_left)
velocity.x = -32;
else
velocity.x = 32;
}
else
{
velocity.y += GRAVITY * delta;
}
Vector old_pos = pos;
pos += velocity * delta;
if ((was_on_ground && !on_ground()) || in_wall())
{
direction_left = !direction_left;
pos = old_pos;
}
}
// Check if the player got hit
// FIXME: Insert pixel perfect collision detection here
Vector player_pos = Player::current()->get_pos();
if (pos.x - 20 < player_pos.x
&& pos.x + 20 > player_pos.x
&& pos.y - 20 < player_pos.y
&& pos.y + 5 > player_pos.y)
Player::current()->hit(5);
}
bool in_void(float s) {return !in_wall(s);}
