Tiled Map Editor のマップとタイルセットを読み込む
https://gyazo.com/482181ef86da0fe8235eb62f90fa7373
ソースコードと Tiled のプロジェクトファイル、タイルセット画像など一式：
Tiled Map Editor:
code:read_tmx.cpp
# include <Siv3D.hpp> // Siv3D v0.6.15
namespace TMX
{
struct Tile
{
int32 gid;
int32 localId;
int32 tilesetId;
friend void Formatter(FormatData& formatData, const Tile& tile)
{
formatData.string += U"({}, {}, {})"_fmt(tile.gid, tile.localId, tile.tilesetId);
}
};
struct TileLayer
{
int32 id;
Size size;
Grid<Tile> data;
};
struct Object
{
int32 id;
Optional<int32> gid;
Point pos;
Size size;
};
struct ObjectLayer
{
int32 id;
Array<Object> obj;
};
struct Tileset
{
int32 firstgid;
FilePath source;
FilePath imageSource;
Size tileSize;
int32 tileCount;
int32 columns;
};
struct Map
{
Size size;
Size tileSize;
Array<TileLayer> tileLayers;
Array<ObjectLayer> objLayers;
Array<Tileset> tilesets;
void dump()
{
Console << U"size:" << size;
Console << U"tileSize:" << tileSize;
Console << U"tileLayers.size:" << tileLayers.size();
for (const auto& layer : tileLayers)
{
Console << U"layer.id:" << layer.id;
Console << U"layer.size:" << layer.size;
Console << U"layer.data:" << layer.data;
}
Console << U"objLayers.size:" << objLayers.size();
for (const auto& layer : objLayers)
{
Console << U"layer.id:" << layer.id;
for (const auto& obj : layer.obj)
{
Console << U"layer.obj.id:" << obj.id;
Console << U"layer.obj.gid:" << obj.gid;
Console << U"layer.obj.pos:" << obj.pos;
Console << U"layer.obj.size:" << obj.size;
}
}
Console << U"tilesets.size:" << tilesets.size();
for (const auto& tileset : tilesets)
{
Console << U"tileset.firstgid:" << tileset.firstgid;
Console << U"tileset.source:" << tileset.source;
Console << U"tileset.imageSource:" << tileset.imageSource;
Console << U"tileset.tileSize:" << tileset.tileSize;
Console << U"tileset.tileCount:" << tileset.tileCount;
Console << U"tileset.columns:" << tileset.columns;
}
}
};
namespace
{
int32 GetTilesetId(const Map& map, int32 gid)
{
{
if (InRange<int32>(gid, tileset.firstgid, tileset.firstgid + tileset.tileCount))
{
return static_cast<int32>(index);
}
}
return 0;
}
}
Map Load(const FilePath& tmxFilePath)
{
Map map;
XMLReader xml{ tmxFilePath };
map.size.x = ParseInt<int32>(xml.attribute(U"width").value_or(U"0"));
map.size.y = ParseInt<int32>(xml.attribute(U"height").value_or(U"0"));
map.tileSize.x = ParseInt<int32>(xml.attribute(U"tilewidth").value_or(U"0"));
map.tileSize.y = ParseInt<int32>(xml.attribute(U"tileheight").value_or(U"0"));
for (auto el = xml.firstChild(); el; el = el.nextSibling())
{
if (el.name() == U"layer")
{
auto& layer = map.tileLayers.emplace_back();
layer.id = ParseInt<int32>(el.attribute(U"id").value_or(U"0"));
layer.size.x = ParseInt<int32>(el.attribute(U"width").value_or(U"0"));
layer.size.y = ParseInt<int32>(el.attribute(U"height").value_or(U"0"));
for (auto el2 = el.firstChild(); el2; el2 = el2.nextSibling())
{
if (el2.name() == U"data" && el2.attribute(U"encoding").value_or(U"").lowercased() == U"csv")
{
String data = el2.text();
layer.data = Grid<Tile>{
layer.size,
data.split(U',').map([](const String tileIdStr)
{
Tile tile;
tile.gid = ParseInt<int32>(tileIdStr.trimmed());
// ※localId, tilesetId は、すべてのプロパティを読み込んだあとでセットする
return tile;
}) };
}
}
}
else if (el.name() == U"objectgroup")
{
auto& layer = map.objLayers.emplace_back();
layer.id = ParseInt<int32>(el.attribute(U"id").value_or(U"0"));
for (auto el2 = el.firstChild(); el2; el2 = el2.nextSibling())
{
if (el2.name() == U"object")
{
auto& obj = layer.obj.emplace_back();
obj.id = ParseInt<int32>(el2.attribute(U"id").value_or(U"0"));
obj.gid = ParseOpt<int32>(el2.attribute(U"gid").value_or(U""));
obj.pos.x = ParseInt<int32>(el2.attribute(U"x").value_or(U"0"));
obj.pos.y = ParseInt<int32>(el2.attribute(U"y").value_or(U"0"));
obj.size.x = ParseInt<int32>(el2.attribute(U"width").value_or(U"0"));
obj.size.y = ParseInt<int32>(el2.attribute(U"height").value_or(U"0"));
}
}
}
else if (el.name() == U"tileset")
{
auto& tileset = map.tilesets.emplace_back();
tileset.firstgid = ParseInt<int32>(el.attribute(U"firstgid").value_or(U"0"));
tileset.source = el.attribute(U"source").value_or(U"");
XMLReader tsx{ U"map/" + tileset.source};
tileset.tileSize.x = ParseInt<int32>(tsx.attribute(U"tilewidth").value_or(U"0"));
tileset.tileSize.y = ParseInt<int32>(tsx.attribute(U"tileheight").value_or(U"0"));
tileset.tileCount = ParseInt<int32>(tsx.attribute(U"tilecount").value_or(U"0"));
tileset.columns = ParseInt<int32>(tsx.attribute(U"columns").value_or(U"0"));
for (auto tsxElem = tsx.firstChild(); tsxElem; tsxElem = tsxElem.nextSibling())
{
if (tsxElem.name() == U"image")
{
tileset.imageSource = tsxElem.attribute(U"source").value_or(U"");
}
}
}
}
// tileLayers*.data (Tile) の localId, tilesetId をセットする for (auto& layer : map.tileLayers)
{
for (auto& tile : layer.data)
{
tile.tilesetId = GetTilesetId(map, tile.gid);
}
}
return map;
}
}
namespace
{
void RegisterTilesetTextures(const TMX::Map& map)
{
for (const auto& tileset : map.tilesets)
{
TextureAsset::Register(tileset.imageSource, U"map/" + tileset.imageSource);
}
}
TextureRegion TileTexture(const TMX::Map& map, const int32 tileX, const int32 tileY)
{
const auto& tile = map.tileLayers0.data.at(tileY, tileX); const double x = (tile.localId % tileset.columns) * tileset.tileSize.x;
const double y = (tile.localId / tileset.columns) * tileset.tileSize.y;
return TextureAsset(tileset.imageSource)(x, y, map.tileSize);
}
}
void Main()
{
Scene::SetBackground(ColorF{ 0.6, 0.8, 0.7 });
constexpr Size TileSize{ 16, 16 };
constexpr Size SceneSize{ TileSize.x * 24, TileSize.y * 24 };
Scene::Resize(SceneSize);
Scene::SetResizeMode(ResizeMode::Keep);
Window::Resize(SceneSize * 2);
Scene::SetTextureFilter(TextureFilter::Nearest);
TMX::Map map = TMX::Load(U"map/map.tmx");
map.dump();
RegisterTilesetTextures(map);
while (System::Update())
{
for (int32 iy = 0; iy < Min(48, map.size.y); ++iy)
{
for (int32 ix = 0; ix < map.size.x; ++ix)
{
TileTexture(map, ix, iy).draw(ix * map.tileSize.x, iy * map.tileSize.y);
}
}
}
}