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(svn r10750) -Codechange: make the waypoint struct use the new poolitem class as super class.

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This commit is contained in:
rubidium
2007-08-02 12:22:40 +00:00
parent cab6275511
commit dd666a80d5
3 changed files with 52 additions and 83 deletions
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97
src/waypoint.cpp
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@@ -26,50 +26,14 @@
#include "newgrf.h"
#include "string.h"
#include "strings.h"
#include "misc/autoptr.hpp"
enum {
MAX_WAYPOINTS_PER_TOWN = 64,
};
/**
* Called if a new block is added to the waypoint-pool
*/
static void WaypointPoolNewBlock(uint start_item)
{
Waypoint *wp;
DEFINE_OLD_POOL_GENERIC(Waypoint, Waypoint)
/* 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 (wp = GetWaypoint(start_item); wp != NULL; wp = (wp->index + 1U < GetWaypointPoolSize()) ? GetWaypoint(wp->index + 1U) : NULL) wp->index = start_item++;
}
DEFINE_OLD_POOL(Waypoint, Waypoint, WaypointPoolNewBlock, NULL)
/**
* Create a new waypoint
* @return a pointer to the newly created Waypoint */
static Waypoint* AllocateWaypoint()
{
Waypoint *wp;
/* 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 (wp = GetWaypoint(0); wp != NULL; wp = (wp->index + 1U < GetWaypointPoolSize()) ? GetWaypoint(wp->index + 1U) : NULL) {
if (!IsValidWaypoint(wp)) {
uint index = wp->index;
memset(wp, 0, sizeof(*wp));
wp->index = index;
return wp;
}
}
/* Check if we can add a block to the pool */
if (AddBlockToPool(&_Waypoint_pool)) return AllocateWaypoint();
return NULL;
}
/**
* Update the sign for the waypoint
@@ -105,19 +69,6 @@ void UpdateAllWaypointSigns()
}
}
/**
* Internal handler to delete a waypoint
* @param wp Waypoint to delete
*/
void DestroyWaypoint(Waypoint *wp)
{
RemoveOrderFromAllVehicles(OT_GOTO_WAYPOINT, wp->index);
if (wp->string != STR_NULL) DeleteName(wp->string);
RedrawWaypointSign(wp);
}
/**
* Set the default name for a waypoint
* @param wp Waypoint to work on
@@ -206,6 +157,7 @@ void AfterLoadWaypoints()
CommandCost CmdBuildTrainWaypoint(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
Waypoint *wp;
AutoPtrT<Waypoint> wp_auto_delete;
Slope tileh;
Axis axis;
@@ -236,9 +188,11 @@ CommandCost CmdBuildTrainWaypoint(TileIndex tile, uint32 flags, uint32 p1, uint3
/* Check if there is an already existing, deleted, waypoint close to us that we can reuse. */
wp = FindDeletedWaypointCloseTo(tile);
if (wp == NULL) {
wp = AllocateWaypoint();
wp = new Waypoint(tile);
if (wp == NULL) return CMD_ERROR;
wp_auto_delete = wp;
wp->town_index = 0;
wp->string = STR_NULL;
wp->town_cn = 0;
@@ -264,7 +218,6 @@ CommandCost CmdBuildTrainWaypoint(TileIndex tile, uint32 flags, uint32 p1, uint3
}
wp->deleted = 0;
wp->xy = tile;
wp->build_date = _date;
if (wp->town_index == 0) MakeDefaultWaypointName(wp);
@@ -272,6 +225,7 @@ CommandCost CmdBuildTrainWaypoint(TileIndex tile, uint32 flags, uint32 p1, uint3
UpdateWaypointSign(wp);
RedrawWaypointSign(wp);
YapfNotifyTrackLayoutChange(tile, AxisToTrack(axis));
wp_auto_delete.Detach();
}
return CommandCost(_price.build_train_depot);
@@ -443,6 +397,32 @@ void DrawWaypointSprite(int x, int y, int stat_id, RailType railtype)
}
}
Waypoint::Waypoint(TileIndex tile)
{
this->xy = tile;
}
Waypoint::~Waypoint()
{
RemoveOrderFromAllVehicles(OT_GOTO_WAYPOINT, this->index);
RedrawWaypointSign(this);
this->xy = 0;
this->QuickFree();
}
void Waypoint::QuickFree()
{
if (this->string != STR_NULL) DeleteName(this->string);
}
bool Waypoint::IsValid() const
{
return this->xy != 0;
}
/**
* Fix savegames which stored waypoints in their old format
*/
@@ -463,8 +443,8 @@ void FixOldWaypoints()
void InitializeWaypoints()
{
CleanPool(&_Waypoint_pool);
AddBlockToPool(&_Waypoint_pool);
_Waypoint_pool.CleanPool();
_Waypoint_pool.AddBlockToPool();
}
static const SaveLoad _waypoint_desc[] = {
@@ -498,12 +478,7 @@ static void Load_WAYP()
int index;
while ((index = SlIterateArray()) != -1) {
Waypoint *wp;
if (!AddBlockIfNeeded(&_Waypoint_pool, index))
error("Waypoints: failed loading savegame: too many waypoints");
wp = GetWaypoint(index);
Waypoint *wp = new (index) Waypoint();
SlObject(wp, _waypoint_desc);
}
}