Codechange: Split NewGRF loader into separate Action handlers.

src/newgrf/newgrf_act10.cpp

@@ -0,0 +1,37 @@
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file newgrf_act10.cpp NewGRF Action 0x10 handler. */
+
+#include "../stdafx.h"
+#include "../debug.h"
+#include "newgrf_bytereader.h"
+#include "newgrf_internal.h"
+
+#include "../safeguards.h"
+
+/** Action 0x10 - Define goto label */
+static void DefineGotoLabel(ByteReader &buf)
+{
+	/* <10> <label> [<comment>]
+	 *
+	 * B label      The label to define
+	 * V comment    Optional comment - ignored */
+
+	uint8_t nfo_label = buf.ReadByte();
+
+	_cur.grffile->labels.emplace_back(nfo_label, _cur.nfo_line, _cur.file->GetPos());
+
+	GrfMsg(2, "DefineGotoLabel: GOTO target with label 0x{:02X}", nfo_label);
+}
+
+template <> void GrfActionHandler<0x10>::FileScan(ByteReader &) { }
+template <> void GrfActionHandler<0x10>::SafetyScan(ByteReader &) { }
+template <> void GrfActionHandler<0x10>::LabelScan(ByteReader &buf) { DefineGotoLabel(buf); }
+template <> void GrfActionHandler<0x10>::Init(ByteReader &) { }
+template <> void GrfActionHandler<0x10>::Reserve(ByteReader &) { }
+template <> void GrfActionHandler<0x10>::Activation(ByteReader &) { }