void jump_flood(ivec2* nearests, unsigned width, unsigned height) {
unsigned max_step = highest_power_of_two(max(width, height));
for (unsigned step = max_step; step > 0; step /= 2) {
for (unsigned y = 0; y < height; y++)
for (unsigned x = 0; x < width; x++) {
ivec2* nearest = nearests + get_index(x, y, width);
unsigned d_2 = dist_2(x, y, *nearest);
ivec2 new_nearest;
unsigned new_d_2;
for (unsigned n = 0; n < NEIGHBOR_COUNT; n++) {
int nx = x + off_x[n] * step;
int ny = y + off_y[n] * step;
if (!is_in_bounds(nx, ny, width, height)) {
continue;
}
new_nearest = nearests[get_index(
nx,
ny,
width
)];
new_d_2 = dist_2(x, y, new_nearest);
if (new_d_2 < d_2) {
d_2 = new_d_2;
*nearest = new_nearest;
}
}
}
}
}
hex_grid_cell_t& hex_grid_t::cell_at(ivec2 hex_coord)
{
ASSERT(is_in_bounds(hex_coord), "Asking for a cell that is out of bounds");
auto chunk_coord = chunk_coord_from_hex_coord(hex_coord);
hex_grid_chunk_t& chunk = chunks[chunk_coord.x][chunk_coord.y];
ivec2 local_hex_coord = hex_coord - (chunk_coord * ivec2(new_chunk_width, new_chunk_height));
return chunk.cell_at_local_coord(local_hex_coord);
}
/**
* player_search(uint16 curx, uint16 cury)
*
* @brief
* @param curx
* @param cury
* @return void
*/
void player_search(uint16 curx, uint16 cury)
{
buffer_t buffer;
if(is_in_bounds()){
clear_buffer(&buffer);
add_opcode(&buffer, CSEARCH);
add_buffer(&buffer, &tempdata()->curx, SIZE8);
add_buffer(&buffer, &tempdata()->cury, SIZE8);
socketsend(&buffer);
}
}
std::unique_ptr<State> PlayingState::update()
{
handle_input();
_snake.update();
if (_snake.head() == _food) {
_snake.eat();
position_food();
} else if (_snake.is_in_body(_snake.head()) || !is_in_bounds(_snake.head())) {
_complete = true;
}
if (_complete)
return std::unique_ptr<YouDeadState>(new YouDeadState(State::_width, State::_height));
return std::unique_ptr<PlayingState>(new PlayingState(*this));
}
void ae::Screen_buffer::put_char(int x, int y, char val) {
if (!is_in_bounds(x, y))
return;
screen_output->print_char_at(x, y, val);
}
