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(svn r23173) -Codechange: Rename GetVehicleCapacity() to Engine::DetermineCapacity().

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This commit is contained in:
frosch
2011-11-09 16:38:50 +00:00
parent e4011426f2
commit 026317bb44
9 changed files with 74 additions and 73 deletions
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68
src/engine.cpp
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@@ -196,6 +196,72 @@ bool Engine::CanCarryCargo() const
return this->GetDefaultCargoType() != CT_INVALID;
}
/**
* Determines capacity of a given vehicle from scratch.
* For aircraft the main capacity is determined. Mail might be present as well.
* @note Keep this function consistent with Engine::GetDisplayDefaultCapacity().
* @param v Vehicle of interest
* @param mail_capacity returns secondary cargo (mail) capacity of aircraft
* @return Capacity
*/
uint Engine::DetermineCapacity(const Vehicle *v, uint16 *mail_capacity) const
{
assert(this->index == v->engine_type);
if (mail_capacity != NULL) *mail_capacity = 0;
if (!this->CanCarryCargo()) return 0;
if (mail_capacity != NULL && this->type == VEH_AIRCRAFT && IsCargoInClass(v->cargo_type, CC_PASSENGERS)) {
*mail_capacity = GetVehicleProperty(v, PROP_AIRCRAFT_MAIL_CAPACITY, this->u.air.mail_capacity);
}
CargoID default_cargo = this->GetDefaultCargoType();
/* Check the refit capacity callback if we are not in the default configuration.
* Note: This might change to become more consistent/flexible/sane, esp. when default cargo is first refittable. */
if (HasBit(this->info.callback_mask, CBM_VEHICLE_REFIT_CAPACITY) &&
(default_cargo != v->cargo_type || v->cargo_subtype != 0)) {
uint16 callback = GetVehicleCallback(CBID_VEHICLE_REFIT_CAPACITY, 0, 0, this->index, v);
if (callback != CALLBACK_FAILED) return callback;
}
/* Get capacity according to property resp. CB */
uint capacity;
switch (this->type) {
case VEH_TRAIN: capacity = GetVehicleProperty(v, PROP_TRAIN_CARGO_CAPACITY, this->u.rail.capacity); break;
case VEH_ROAD: capacity = GetVehicleProperty(v, PROP_ROADVEH_CARGO_CAPACITY, this->u.road.capacity); break;
case VEH_SHIP: capacity = GetVehicleProperty(v, PROP_SHIP_CARGO_CAPACITY, this->u.ship.capacity); break;
case VEH_AIRCRAFT: capacity = GetVehicleProperty(v, PROP_AIRCRAFT_PASSENGER_CAPACITY, this->u.air.passenger_capacity); break;
default: NOT_REACHED();
}
/* Apply multipliers depending on cargo- and vehicletype.
* Note: This might change to become more consistent/flexible. */
if (this->type != VEH_SHIP) {
if (this->type == VEH_AIRCRAFT) {
if (!IsCargoInClass(v->cargo_type, CC_PASSENGERS)) {
capacity += GetVehicleProperty(v, PROP_AIRCRAFT_MAIL_CAPACITY, this->u.air.mail_capacity);
}
if (v->cargo_type == CT_MAIL) return capacity;
} else {
switch (default_cargo) {
case CT_PASSENGERS: break;
case CT_MAIL:
case CT_GOODS: capacity *= 2; break;
default: capacity *= 4; break;
}
}
switch (v->cargo_type) {
case CT_PASSENGERS: break;
case CT_MAIL:
case CT_GOODS: capacity /= 2; break;
default: capacity /= 4; break;
}
}
return capacity;
}
/**
* Determines the default cargo capacity of an engine for display purposes.
*
@@ -203,7 +269,7 @@ bool Engine::CanCarryCargo() const
* For multiheaded engines this is the capacity of both heads.
* For articulated engines use GetCapacityOfArticulatedParts
*
* @note Keep this function consistent with GetVehicleCapacity().
* @note Keep this function consistent with Engine::DetermineCapacity().
* @param mail_capacity returns secondary cargo (mail) capacity of aircraft
* @return The default capacity
* @see GetDefaultCargoType