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#include "StarLuaConverters.hpp"
#include "StarColor.hpp"
namespace Star {
LuaValue LuaConverter<Color>::from(LuaEngine& engine, Color const& c) {
if (c.alpha() == 255)
return engine.createArrayTable(initializer_list<uint8_t>{c.red(), c.green(), c.blue()});
else
return engine.createArrayTable(initializer_list<uint8_t>{c.red(), c.green(), c.blue(), c.alpha()});
}
Maybe<Color> LuaConverter<Color>::to(LuaEngine& engine, LuaValue const& v) {
if (auto t = v.ptr<LuaTable>()) {
Color c = Color::rgba(0, 0, 0, 255);
Maybe<int> r = engine.luaMaybeTo<int>(t->get(1));
Maybe<int> g = engine.luaMaybeTo<int>(t->get(2));
Maybe<int> b = engine.luaMaybeTo<int>(t->get(3));
if (!r || !g || !b)
return {};
c.setRed(*r);
c.setGreen(*g);
c.setBlue(*b);
if (Maybe<int> a = engine.luaMaybeTo<int>(t->get(4))) {
if (!a)
return {};
c.setAlpha(*a);
}
return c;
} else if (auto s = v.ptr<LuaString>()) {
try {
return Color(s->ptr());
} catch (ColorException const&) {}
}
return {};
}
LuaValue LuaConverter<LuaCallbacks>::from(LuaEngine& engine, LuaCallbacks const& c) {
auto table = engine.createTable(0, c.callbacks().size());
for (auto& callback : c.callbacks())
table.set(callback.first, engine.createWrappedFunction(callback.second));
return table;
}
Maybe<LuaCallbacks> LuaConverter<LuaCallbacks>::to(LuaEngine&, LuaValue const&) {
return {};
}
}
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