/// \brief reads the 256 colour palette values.
void TR_Level::read_tr_palette(SDL_RWops * const src, tr2_palette_t & palette)
{
for (int i = 0; i < 256; i++)
read_tr_colour(src, palette.colour[i]);
}
void TR_Level::read_tr3_room(SDL_RWops * const src, tr5_room_t & room)
{
bitu32 num_data_words;
bitu32 i;
int pos;
// read and change coordinate system
room.offset.x = (float)read_bit32(src);
room.offset.y = 0;
room.offset.z = (float)-read_bit32(src);
room.y_bottom = (float)-read_bit32(src);
room.y_top = (float)-read_bit32(src);
num_data_words = read_bitu32(src);
pos = SDL_RWseek(src, 0, SEEK_CUR);
room.num_layers = 0;
room.num_vertices = read_bitu16(src);
room.vertices.resize(room.num_vertices);
for (i = 0; i < room.num_vertices; i++)
read_tr3_room_vertex(src, room.vertices[i]);
room.num_rectangles = read_bitu16(src);
room.rectangles.resize(room.num_rectangles);
for (i = 0; i < room.num_rectangles; i++)
read_tr_face4(src, room.rectangles[i]);
room.num_triangles = read_bitu16(src);
room.triangles.resize(room.num_triangles);
for (i = 0; i < room.num_triangles; i++)
read_tr_face3(src, room.triangles[i]);
room.num_sprites = read_bitu16(src);
room.sprites.resize(room.num_sprites);
for (i = 0; i < room.num_sprites; i++)
read_tr_room_sprite(src, room.sprites[i]);
// set to the right position in case that there is some unused data
SDL_RWseek(src, pos + (num_data_words * 2), SEEK_SET);
room.num_portals = read_bitu16(src);
room.portals.resize(room.num_portals);
for (i = 0; i < room.num_portals; i++)
read_tr_room_portal(src, room.portals[i]);
room.num_zsectors = read_bitu16(src);
room.num_xsectors = read_bitu16(src);
room.sector_list.resize(room.num_zsectors * room.num_xsectors);
for (i = 0; i < (bitu32)(room.num_zsectors * room.num_xsectors); i++)
read_tr_room_sector(src, room.sector_list[i]);
room.intensity1 = read_bit16(src);
room.intensity2 = read_bit16(src);
// only in TR2
room.light_mode = 0;
room.num_lights = read_bitu16(src);
room.lights.resize(room.num_lights);
for (i = 0; i < room.num_lights; i++)
read_tr2_room_light(src, room.lights[i]);
room.num_static_meshes = read_bitu16(src);
room.static_meshes.resize(room.num_static_meshes);
for (i = 0; i < room.num_static_meshes; i++)
read_tr3_room_staticmesh(src, room.static_meshes[i]);
room.alternate_room = read_bit16(src);
room.flags = read_bitu16(src);
// only in TR3-TR4
read_tr_colour(src, room.fog_colour);
room.light_colour.r = room.intensity1 / 32767.0f;
room.light_colour.g = room.intensity1 / 32767.0f;
room.light_colour.b = room.intensity1 / 32767.0f;
room.light_colour.a = 1.0f;
}