void shape::remove_frame(frame_index aFrameIndex)
{
if (aFrameIndex >= iFrames.size())
throw bad_frame_index();
iFrames.erase(iFrames.begin() + aFrameIndex);
if (iCurrentFrame >= frame_count())
iCurrentFrame = 0;
}
rect shape::bounding_box() const
{
if (iBoundingBox != boost::none)
return *iBoundingBox;
else if (frame_count() > 0 && current_frame().has_extents())
return rect{ origin() - current_frame().extents() / size{2.0}, current_frame().extents() };
else
return rect{ origin(), size{} };
}
static VALUE
callers(VALUE self)
{
VALUE ary = rb_ary_new();
for (int i = 0; i < FIX2INT(frame_count(self)); i++)
rb_ary_push(ary, binding_of_caller(self, INT2FIX(i)));
return ary;
}
void shape::paint(graphics_context& aGraphicsContext) const
{
if (frame_count() == 0)
return;
auto tm = transformation_matrix();
auto m = map();
for (auto& vertex : m)
vertex = tm * vertex;
if (current_frame().texture() != boost::none)
{
if (current_frame().texture_rect() == boost::none)
aGraphicsContext.draw_texture(texture_map{ {m[0][0], m[0][1]}, {m[1][0], m[1][1]}, {m[2][0], m[2][1]}, {m[3][0], m[3][1]} }, *current_frame().texture());
else
aGraphicsContext.draw_texture(texture_map{ {m[0][0], m[0][1]}, {m[1][0], m[1][1]}, {m[2][0], m[2][1]}, {m[3][0], m[3][1]} }, *current_frame().texture(), *current_frame().texture_rect());
}
else if (current_frame().colour() != boost::none)
{
aGraphicsContext.fill_shape(position() - origin(), m, *current_frame().colour());
}
}
/* This is the entry-point for the game! */
void c_start(void) {
/* TODO: You will need to initialize various subsystems here. This
* would include the interrupt handling mechanism, and the various
* systems that use interrupts. Once this is done, you can call
* enable_interrupts() to start interrupt handling, and go on to
* do whatever else you decide to do!
*/
seed_rand_with_time();
init_interrupts();
init_keyboard();
init_timer();
enable_interrupts();
int board[BOARD_SIZE][BOARD_SIZE] = { };
animation_descriptor descriptor = { };
initialize(board);
int high_score = current_score(board);
init_video(high_score);
draw_board(board);
/* Loop forever, so that we don't fall back into the bootloader code. */
while (1) {
if (!isemptyqueue()) {
key k = dequeue();
if (k == enter_key) {
for (int *b = *board; b < *board + BOARD_SIZE * BOARD_SIZE; b++) *b = 0;
initialize(board);
init_video(high_score);
draw_board(board);
continue;
} else {
shift_direction direction = key_to_direction(k);
// Setup animation
copy_board(board, descriptor.board);
descriptor.direction = direction;
// Only add a box if the pieces actually move
if (shift(board, direction, descriptor.offsets)) {
add_random_box(board);
int score = current_score(board);
if (score > high_score) high_score = score;
init_video(high_score);
}
}
int num_frames = frame_count(descriptor.direction);
int incr = get_axis(descriptor.direction) == horizontal_axis ? 12 : 2;
int frame = 0;
while (frame <= num_frames) {
draw_board_frame(descriptor, frame);
sleep(30);
if (frame == num_frames) break;
else frame = min(frame + incr, num_frames);
}
draw_board(board);
if (!move_available(board)) {
draw_failure_message();
}
}
}
}
/*! \details Returns the total number of bytes used by the FFIFO buffer (frame size * frame count). */
u32 size() const { return frame_size() * frame_count(); }
T get_interpolated_value( index_t frame0, index_t channel, T pos ) {
flut_assert( frame0 >= frame_count() - num_frames && frame0 < frame_count() && channel < this->channel_count() );
index_t ofs0 = ( frame0 % num_frames ) * this->channel_count() + channel;
index_t ofs1 = ( ( frame0 + 1 ) % num_frames ) * this->channel_count() + channel;
return ( T(1) - pos ) * data[ ofs0 ] + pos * data[ ofs1 ];
}
T get_value( index_t frame, index_t channel ) {
flut_assert( frame >= frame_count() - num_frames && frame < frame_count() && channel < this->channel_count() );
return data[ ( frame % num_frames ) * this->channel_count() + channel ];
}
const T* get_frame( index_t frame ) {
flut_assert( frame >= frame_count() - num_frames && frame < frame_count() );
return data[ ( frame % num_frames ) * this->channel_count() ];
}