Method PostEffect

LuaSTGPlus/LuaWrapper.cpp:1423–1470

			return 0;
		}
		static int PostEffect(lua_State* L)LNOEXCEPT
		{
			const char* texture = luaL_checkstring(L, 1);
			const char* name = luaL_checkstring(L, 2);
			BlendMode blend = TranslateBlendMode(L, 3);

			// 获取纹理
			ResTexture* rt = LRES.FindTexture(luaL_checkstring(L, 1));
			if (!rt)
				return luaL_error(L, "texture '%s' not found.", texture);

			// 获取fx
			ResFX* p = LRES.FindFX(name);
			if (!p)
				return luaL_error(L, "PostEffect: can't find effect '%s'.", name);
			if (lua_istable(L, 4))
			{
				// 设置table上的参数到fx
				lua_pushnil(L);  // s s t ... nil
				while (0 != lua_next(L, 4))
				{
					// s s t ... nil key value
					const char* key = luaL_checkstring(L, -2);
					if (lua_isnumber(L, -1))
						p->SetValue(key, (float)lua_tonumber(L, -1));
					else if (lua_isstring(L, -1))
					{
						ResTexture* pTex = LRES.FindTexture(lua_tostring(L, -1));
						if (!pTex)
							return luaL_error(L, "PostEffect: can't find texture '%s'.", lua_tostring(L, -1));
						p->SetValue(key, pTex->GetTexture());
					}
					else if (lua_isuserdata(L, -1))
					{
						fcyColor c = *static_cast<fcyColor*>(luaL_checkudata(L, -1, TYPENAME_COLOR));
						p->SetValue(key, c);
					}
					else
						return luaL_error(L, "PostEffect: invalid data type.");

					lua_pop(L, 1);  // s s t ... nil key
				}
			}

			if (!LAPP.PostEffect(rt, p, blend))
				return luaL_error(L, "PostEffect failed.");
			return 0;
		}
		static int PostEffectCapture(lua_State* L)LNOEXCEPT
		{
			if (!LAPP.PostEffectCapture())