(svn r14828) -Codechange: move most of save/load-specific code to separate files

1 files changed, 96 insertions, 0 deletions

diff --git a/src/saveload/waypoint_sl.cpp b/src/saveload/waypoint_sl.cpp
new file mode 100644
index 000000000..e8a8bf949
--- /dev/null
+++ b/src/saveload/waypoint_sl.cpp
@@ -0,0 +1,96 @@
+/* $Id$ */
+
+/** @file waypoint_sl.cpp Code handling saving and loading of waypoints */
+
+#include "../stdafx.h"
+#include "../waypoint.h"
+#include "../newgrf_station.h"
+#include "../town.h"
+
+#include "table/strings.h"
+
+#include "saveload.h"
+
+/**
+ * Update waypoint graphics id against saved GRFID/localidx.
+ * This is to ensure the chosen graphics are correct if GRF files are changed.
+ */
+void AfterLoadWaypoints()
+{
+	Waypoint *wp;
+
+	FOR_ALL_WAYPOINTS(wp) {
+		uint i;
+
+		if (wp->grfid == 0) continue;
+
+		for (i = 0; i < GetNumCustomStations(STAT_CLASS_WAYP); i++) {
+			const StationSpec *statspec = GetCustomStationSpec(STAT_CLASS_WAYP, i);
+			if (statspec != NULL && statspec->grffile->grfid == wp->grfid && statspec->localidx == wp->localidx) {
+				wp->stat_id = i;
+				break;
+			}
+		}
+	}
+}
+
+/**
+ * Fix savegames which stored waypoints in their old format
+ */
+void FixOldWaypoints()
+{
+	Waypoint *wp;
+
+	/* Convert the old 'town_or_string', to 'string' / 'town' / 'town_cn' */
+	FOR_ALL_WAYPOINTS(wp) {
+		wp->town_index = ClosestTownFromTile(wp->xy, UINT_MAX)->index;
+		wp->town_cn = 0;
+		if (wp->string & 0xC000) {
+			wp->town_cn = wp->string & 0x3F;
+			wp->string = STR_NULL;
+		}
+	}
+}
+
+static const SaveLoad _waypoint_desc[] = {
+	SLE_CONDVAR(Waypoint, xy,         SLE_FILE_U16 | SLE_VAR_U32,  0, 5),
+	SLE_CONDVAR(Waypoint, xy,         SLE_UINT32,                  6, SL_MAX_VERSION),
+	SLE_CONDVAR(Waypoint, town_index, SLE_UINT16,                 12, SL_MAX_VERSION),
+	SLE_CONDVAR(Waypoint, town_cn,    SLE_FILE_U8 | SLE_VAR_U16,  12, 88),
+	SLE_CONDVAR(Waypoint, town_cn,    SLE_UINT16,                 89, SL_MAX_VERSION),
+	SLE_CONDVAR(Waypoint, string,     SLE_STRINGID,                0, 83),
+	SLE_CONDSTR(Waypoint, name,       SLE_STR, 0,                 84, SL_MAX_VERSION),
+	    SLE_VAR(Waypoint, deleted,    SLE_UINT8),
+
+	SLE_CONDVAR(Waypoint, build_date, SLE_FILE_U16 | SLE_VAR_I32,  3, 30),
+	SLE_CONDVAR(Waypoint, build_date, SLE_INT32,                  31, SL_MAX_VERSION),
+	SLE_CONDVAR(Waypoint, localidx,   SLE_UINT8,                   3, SL_MAX_VERSION),
+	SLE_CONDVAR(Waypoint, grfid,      SLE_UINT32,                 17, SL_MAX_VERSION),
+	SLE_CONDVAR(Waypoint, owner,      SLE_UINT8,                 101, SL_MAX_VERSION),
+
+	SLE_END()
+};
+
+static void Save_WAYP()
+{
+	Waypoint *wp;
+
+	FOR_ALL_WAYPOINTS(wp) {
+		SlSetArrayIndex(wp->index);
+		SlObject(wp, _waypoint_desc);
+	}
+}
+
+static void Load_WAYP()
+{
+	int index;
+
+	while ((index = SlIterateArray()) != -1) {
+		Waypoint *wp = new (index) Waypoint();
+		SlObject(wp, _waypoint_desc);
+	}
+}
+
+extern const ChunkHandler _waypoint_chunk_handlers[] = {
+	{ 'CHKP', Save_WAYP, Load_WAYP, CH_ARRAY | CH_LAST},
+};