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(svn r15306) -Codechange: Deduplicate code by adding Engine::GetDisplayMaxSpeed(), GetPower() and GetDisplayWeight(). (and using them)

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frosch
2009-02-01 16:10:06 +00:00
parent ecb685411a
commit 9c2ba4f96a
6 changed files with 80 additions and 71 deletions
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50
src/engine.cpp
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@@ -154,6 +154,56 @@ Money Engine::GetCost() const
}
}
/**
* Returns max speed for display purposes
* @return max speed in mph
*/
uint Engine::GetDisplayMaxSpeed() const
{
switch (this->type) {
case VEH_TRAIN:
return GetEngineProperty(this->index, 0x09, this->u.rail.max_speed) * 10 / 16;
case VEH_ROAD:
return this->u.road.max_speed * 10 / 32;
case VEH_SHIP:
return GetEngineProperty(this->index, 0x0B, this->u.ship.max_speed) * 10 / 32;
case VEH_AIRCRAFT:
return this->u.air.max_speed * 10 / 16;
default: NOT_REACHED();
}
}
uint Engine::GetPower() const
{
/* Currently only trains have 'power' */
switch (this->type) {
case VEH_TRAIN:
return GetEngineProperty(this->index, 0x0B, this->u.rail.power);
default: NOT_REACHED();
}
}
/**
* Returns the weight for display purposes.
* For dual-headed train-engines this is the weight of both heads
* @return weight in display units metric tons
*/
uint Engine::GetDisplayWeight() const
{
/* Currently only trains have 'weight' */
switch (this->type) {
case VEH_TRAIN:
return GetEngineProperty(this->index, 0x16, this->u.rail.weight) << (this->u.rail.railveh_type == RAILVEH_MULTIHEAD ? 1 : 0);
default: NOT_REACHED();
}
}
/** Sets cached values in Company::num_vehicles and Group::num_vehicles
*/
void SetCachedEngineCounts()