Exemplo n.º 1
0
void PARTICLE::update(DISPLAY& disp, bool is_draw)
{
    // update
    if (data.particle_type == 3 || data.particle_type == 2) life -= 1;
	else if (data.type != 2) life -= data.speed;

    if (data.particle_type == 0 || (data.particle_type == 1 && life < starting_life/2)) {
        x += data.speed * cos(theta);
        y += data.speed * sin(theta);
    }

    // update frame
    frame_index += data.frame_rate;
    if (frame_index >= data.num_frames) {
        if (data.type == 0) {
            frame_index -= data.num_frames;
        } else if (data.type) {
            frame_index = data.num_frames-1;
            if (data.type == 2) life = 0;
        }
    }

    // update expansion (zoom type)
    if (data.particle_type == 1) {
        if (life < starting_life/2) {
			expansion = life / starting_life;
			if (!done_damage) do_damage();
			if (chain_factor) chain();
		}
        else expansion = (starting_life - life) / starting_life;
    } else if (data.particle_type == 2) {
    	// update expansion (solid type)
		expansion = 1.0;
	}

    // draw
    if (is_draw && is_on_screen(disp)) draw(disp);
}
Exemplo n.º 2
0
void nx_display_cursor_set_pos(U8 x, U8 y) {
  NX_ASSERT(is_on_screen(x, y));
  display.cursor.x = x;
  display.cursor.y = y;
}