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(svn r12797) -Codechange: [autoreplace] moved wagon removal to a function of it's own

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This commit is contained in:
bjarni 2008-04-19 22:51:52 +00:00
parent c884d82e46
commit de015fbf90
1 changed files with 39 additions and 21 deletions

60
src/autoreplace_cmd.cpp
View File

@ -289,6 +289,42 @@ static CommandCost ReplaceVehicle(Vehicle **w, byte flags, Money total_cost, con
return cost;
}
/** Removes wagons from a train until it get a certain length
* @param v The vehicle
* @param old_total_length The wanted max length
* @return The profit from selling the wagons
*/
static CommandCost WagonRemoval(Vehicle *v, uint16 old_total_length)
{
if (v->type != VEH_TRAIN) return CommandCost();
Vehicle *front = v;
CommandCost cost = CommandCost();
while (front->u.rail.cached_total_length > old_total_length) {
/* the train is too long. We will remove cars one by one from the start of the train until it's short enough */
while (v != NULL && RailVehInfo(v->engine_type)->railveh_type != RAILVEH_WAGON) {
/* We move backwards in the train until we find a wagon */
v = GetNextVehicle(v);
}
if (v == NULL) {
/* We sold all the wagons and the train is still not short enough */
SetDParam(0, front->unitnumber);
AddNewsItem(STR_TRAIN_TOO_LONG_AFTER_REPLACEMENT, NM_SMALL, NF_VIEWPORT | NF_VEHICLE, NT_ADVICE, DNC_NONE, front->index, 0);
return cost;
}
/* We found a wagon we can sell */
Vehicle *temp = v;
v = GetNextVehicle(v);
DoCommand(0, (INVALID_VEHICLE << 16) | temp->index, 0, DC_EXEC, CMD_MOVE_RAIL_VEHICLE); // remove the wagon from the train
MoveVehicleCargo(front, temp); // move the cargo back on the train
cost.AddCost(DoCommand(0, temp->index, 0, DC_EXEC, CMD_SELL_RAIL_WAGON)); // sell the wagon
}
return cost;
}
/** Get the EngineID of the replacement for a vehicle
* @param v The vehicle to find a replacement for
* @param p The vehicle's owner (it's faster to forward the pointer than refinding it)
@ -422,29 +458,11 @@ CommandCost MaybeReplaceVehicle(Vehicle *v, uint32 flags, bool display_costs)
}
if (flags & DC_EXEC && CmdSucceeded(cost)) {
/* If setting is on to try not to exceed the old length of the train with the replacement */
if (v->type == VEH_TRAIN && p->renew_keep_length) {
Vehicle *temp;
w = v;
while (v->u.rail.cached_total_length > old_total_length) {
// the train is too long. We will remove cars one by one from the start of the train until it's short enough
while (w != NULL && RailVehInfo(w->engine_type)->railveh_type != RAILVEH_WAGON) {
w = GetNextVehicle(w);
}
if (w == NULL) {
// we failed to make the train short enough
SetDParam(0, v->unitnumber);
AddNewsItem(STR_TRAIN_TOO_LONG_AFTER_REPLACEMENT, NM_SMALL, NF_VIEWPORT | NF_VEHICLE, NT_ADVICE, DNC_NONE, v->index, 0);
break;
}
temp = w;
w = GetNextVehicle(w);
DoCommand(0, (INVALID_VEHICLE << 16) | temp->index, 0, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
MoveVehicleCargo(v, temp);
cost.AddCost(DoCommand(0, temp->index, 0, DC_EXEC, CMD_SELL_RAIL_WAGON));
}
/* Remove wagons until the wanted length is reached */
cost.AddCost(WagonRemoval(v, old_total_length));
}
if (display_costs && IsLocalPlayer()) {
ShowCostOrIncomeAnimation(v->x_pos, v->y_pos, v->z_pos, cost.GetCost());
}