(svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)

1 files changed, 127 insertions, 0 deletions

diff --git a/src/depot.cpp b/src/depot.cpp
new file mode 100644
index 000000000..49fdfa21c
--- /dev/null
+++ b/src/depot.cpp
@@ -0,0 +1,127 @@
+/* $Id$ */
+
+#include "stdafx.h"
+#include "openttd.h"
+#include "depot.h"
+#include "functions.h"
+#include "tile.h"
+#include "map.h"
+#include "table/strings.h"
+#include "saveload.h"
+#include "order.h"
+
+
+/**
+ * Called if a new block is added to the depot-pool
+ */
+static void DepotPoolNewBlock(uint start_item)
+{
+	Depot *d;
+
+	/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
+	 * TODO - This is just a temporary stage, this will be removed. */
+	for (d = GetDepot(start_item); d != NULL; d = (d->index + 1U < GetDepotPoolSize()) ? GetDepot(d->index + 1U) : NULL) d->index = start_item++;
+}
+
+DEFINE_OLD_POOL(Depot, Depot, DepotPoolNewBlock, NULL)
+
+
+/**
+ * Gets a depot from a tile
+ *
+ * @return Returns the depot if the tile had a depot, else it returns NULL
+ */
+Depot *GetDepotByTile(TileIndex tile)
+{
+	Depot *depot;
+
+	FOR_ALL_DEPOTS(depot) {
+		if (depot->xy == tile) return depot;
+	}
+
+	return NULL;
+}
+
+/**
+ * Allocate a new depot
+ */
+Depot *AllocateDepot(void)
+{
+	Depot *d;
+
+	/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
+	 * TODO - This is just a temporary stage, this will be removed. */
+	for (d = GetDepot(0); d != NULL; d = (d->index + 1U < GetDepotPoolSize()) ? GetDepot(d->index + 1U) : NULL) {
+		if (!IsValidDepot(d)) {
+			DepotID index = d->index;
+
+			memset(d, 0, sizeof(Depot));
+			d->index = index;
+
+			return d;
+		}
+	}
+
+	/* Check if we can add a block to the pool */
+	if (AddBlockToPool(&_Depot_pool)) return AllocateDepot();
+
+	return NULL;
+}
+
+/**
+ * Clean up a depot
+ */
+void DestroyDepot(Depot *depot)
+{
+	/* Clear the tile */
+	DoClearSquare(depot->xy);
+
+	/* Clear the depot from all order-lists */
+	RemoveOrderFromAllVehicles(OT_GOTO_DEPOT, depot->index);
+
+	/* Delete the depot-window */
+	DeleteWindowById(WC_VEHICLE_DEPOT, depot->xy);
+}
+
+void InitializeDepots(void)
+{
+	CleanPool(&_Depot_pool);
+	AddBlockToPool(&_Depot_pool);
+}
+
+
+static const SaveLoad _depot_desc[] = {
+	SLE_CONDVAR(Depot, xy,         SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
+	SLE_CONDVAR(Depot, xy,         SLE_UINT32,                 6, SL_MAX_VERSION),
+	    SLE_VAR(Depot, town_index, SLE_UINT16),
+	SLE_END()
+};
+
+static void Save_DEPT(void)
+{
+	Depot *depot;
+
+	FOR_ALL_DEPOTS(depot) {
+		SlSetArrayIndex(depot->index);
+		SlObject(depot, _depot_desc);
+	}
+}
+
+static void Load_DEPT(void)
+{
+	int index;
+
+	while ((index = SlIterateArray()) != -1) {
+		Depot *depot;
+
+		if (!AddBlockIfNeeded(&_Depot_pool, index))
+			error("Depots: failed loading savegame: too many depots");
+
+		depot = GetDepot(index);
+		SlObject(depot, _depot_desc);
+	}
+}
+
+const ChunkHandler _depot_chunk_handlers[] = {
+	{ 'DEPT', Save_DEPT, Load_DEPT, CH_ARRAY | CH_LAST},
+};