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(svn r19288) -Codechange: Move EnsureNoVehicleOnGround() and HasVehicleOnTunnelBridge() functions.

release/1.1
alberth 2010-02-28 10:44:53 +00:00
parent f73898a4ef
commit 8408b42dee
1 changed files with 49 additions and 49 deletions
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98
src/vehicle.cpp
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@ -218,55 +218,6 @@ void ShowNewGrfVehicleError(EngineID engine, StringID part1, StringID part2, GRF
DEBUG(grf, 0, "%s", buffer + 3); DEBUG(grf, 0, "%s", buffer + 3);
} }
/** Callback that returns 'real' vehicles lower or at height \c *(byte*)data .
* @param v Vehicle to examine.
* @param data Pointer to height data.
* @return \a v if conditions are met, else \c NULL.
*/
static Vehicle *EnsureNoVehicleProcZ(Vehicle *v, void *data)
{
byte z = *(byte*)data;
if (v->type == VEH_DISASTER || (v->type == VEH_AIRCRAFT && v->subtype == AIR_SHADOW)) return NULL;
if (v->z_pos > z) return NULL;
_error_message = STR_ERROR_TRAIN_IN_THE_WAY + v->type;
return v;
}
/* Ensure there is no vehicle at the ground at the given position.
* @param tile Position to examine.
* @return A vehicle has been found.
*/
bool EnsureNoVehicleOnGround(TileIndex tile)
{
byte z = GetTileMaxZ(tile);
return !HasVehicleOnPos(tile, &z, &EnsureNoVehicleProcZ);
}
/** Procedure called for every vehicle found in tunnel/bridge in the hash map */
static Vehicle *GetVehicleTunnelBridgeProc(Vehicle *v, void *data)
{
if (v->type != VEH_TRAIN && v->type != VEH_ROAD && v->type != VEH_SHIP) return NULL;
if (v == (const Vehicle *)data) return NULL;
_error_message = STR_ERROR_TRAIN_IN_THE_WAY + v->type;
return v;
}
/**
* Finds vehicle in tunnel / bridge
* @param tile first end
* @param endtile second end
* @param ignore Ignore this vehicle when searching
* @return true if the bridge has a vehicle
*/
bool HasVehicleOnTunnelBridge(TileIndex tile, TileIndex endtile, const Vehicle *ignore)
{
return HasVehicleOnPos(tile, (void *)ignore, &GetVehicleTunnelBridgeProc) ||
HasVehicleOnPos(endtile, (void *)ignore, &GetVehicleTunnelBridgeProc);
}
/** /**
* Vehicle constructor. * Vehicle constructor.
* @param type Type of the new vehicle. * @param type Type of the new vehicle.
@ -440,6 +391,55 @@ bool HasVehicleOnPos(TileIndex tile, void *data, VehicleFromPosProc *proc)
return VehicleFromPos(tile, data, proc, true) != NULL; return VehicleFromPos(tile, data, proc, true) != NULL;
} }
/** Callback that returns 'real' vehicles lower or at height \c *(byte*)data .
* @param v Vehicle to examine.
* @param data Pointer to height data.
* @return \a v if conditions are met, else \c NULL.
*/
static Vehicle *EnsureNoVehicleProcZ(Vehicle *v, void *data)
{
byte z = *(byte*)data;
if (v->type == VEH_DISASTER || (v->type == VEH_AIRCRAFT && v->subtype == AIR_SHADOW)) return NULL;
if (v->z_pos > z) return NULL;
_error_message = STR_ERROR_TRAIN_IN_THE_WAY + v->type;
return v;
}
/* Ensure there is no vehicle at the ground at the given position.
* @param tile Position to examine.
* @return A vehicle has been found.
*/
bool EnsureNoVehicleOnGround(TileIndex tile)
{
byte z = GetTileMaxZ(tile);
return !HasVehicleOnPos(tile, &z, &EnsureNoVehicleProcZ);
}
/** Procedure called for every vehicle found in tunnel/bridge in the hash map */
static Vehicle *GetVehicleTunnelBridgeProc(Vehicle *v, void *data)
{
if (v->type != VEH_TRAIN && v->type != VEH_ROAD && v->type != VEH_SHIP) return NULL;
if (v == (const Vehicle *)data) return NULL;
_error_message = STR_ERROR_TRAIN_IN_THE_WAY + v->type;
return v;
}
/**
* Finds vehicle in tunnel / bridge
* @param tile first end
* @param endtile second end
* @param ignore Ignore this vehicle when searching
* @return true if the bridge has a vehicle
*/
bool HasVehicleOnTunnelBridge(TileIndex tile, TileIndex endtile, const Vehicle *ignore)
{
return HasVehicleOnPos(tile, (void *)ignore, &GetVehicleTunnelBridgeProc) ||
HasVehicleOnPos(endtile, (void *)ignore, &GetVehicleTunnelBridgeProc);
}
static void UpdateNewVehiclePosHash(Vehicle *v, bool remove) static void UpdateNewVehiclePosHash(Vehicle *v, bool remove)
{ {