World::World () {
int pad_x = Utils::rand_int(0, Screen::WIDTH - SEGMENT_WIDTH);
int pad_y = Utils::rand_int(3 * Screen::HEIGHT / 4, Screen::HEIGHT - 10);
Ground pad(true, pad_x, pad_y,
pad_x + SEGMENT_WIDTH, pad_y);
Ground top(false, 0, 0, Screen::WIDTH, 0);
Ground left(false, 0, 0, 0, Screen::HEIGHT);
Ground right(false, Screen::WIDTH, 0, Screen::WIDTH, Screen::HEIGHT);
grounds.push_back(pad);
grounds.push_back(top);
grounds.push_back(left);
grounds.push_back(right);
// The pad location has already been chosen,
// create random terrain on both sides of it
generate_terrain(pad_x, pad_y, -SEGMENT_WIDTH);
generate_terrain(pad_x + SEGMENT_WIDTH, pad_y, SEGMENT_WIDTH);
}
RSTag* create_chunk(int x, int z, uint8_t* zero_height)
{
uint8_t* blocks = rs_malloc0(0x8000);
uint8_t* blocklight = rs_malloc0(0x4000);
uint8_t* skylight = rs_malloc0(0x4000);
uint8_t* data = rs_malloc0(0x4000);
uint8_t* heightmap = rs_malloc0(0x100);
generate_terrain(x, z, blocks);
generate_heightmap(blocks, heightmap);
generate_skylight(blocks, heightmap, skylight);
if (zero_height)
*zero_height = heightmap[0];
RSTag* level = rs_tag_new(RS_TAG_COMPOUND,
"xPos", rs_tag_new(RS_TAG_INT, x),
"zPos", rs_tag_new(RS_TAG_INT, z),
"Blocks", rs_tag_new(RS_TAG_BYTE_ARRAY, 0x8000, blocks),
"BlockLight", rs_tag_new(RS_TAG_BYTE_ARRAY, 0x4000, blocklight),
"SkyLight", rs_tag_new(RS_TAG_BYTE_ARRAY, 0x4000, skylight),
"Data", rs_tag_new(RS_TAG_BYTE_ARRAY, 0x4000, data),
"HeightMap", rs_tag_new(RS_TAG_BYTE_ARRAY, 0x100, heightmap),
"Entities", rs_tag_new(RS_TAG_LIST, NULL),
"TileEntities", rs_tag_new(RS_TAG_LIST, NULL),
"TerrainPopulated", rs_tag_new(RS_TAG_BYTE, 1),
"LastUpdate", rs_tag_new(RS_TAG_LONG, 0),
NULL);
rs_free(blocks);
rs_free(blocklight);
rs_free(skylight);
rs_free(data);
rs_free(heightmap);
return rs_tag_new(RS_TAG_COMPOUND, "Level", level, NULL);
}