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(svn r15541) -Revert (r15399): 'v->cargo_type' is also used in other places, which cannot accept CT_INVALID.

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-Codechange: Add Engine::GetDefaultCargoType() and Engine::CanCarryCargo() and use them.
-Fix [FS#2617]: When articulated parts have no available default cargo, use the cargo type of the first part for livery selection.
-Change: To decide whether a vehicle is refittable do not test its current capacity for being zero, but always use the 'capacity property'.
  Note: The property is used unmodifed without calling CB 15/36. By setting it to a non-zero value and returning zero in the callback vehicles can be refitted to/from zero capacity for e.g. livery effects.
  Note: It is intentional that you cannot control refittability by CB 36.
This commit is contained in:
frosch
2009-02-21 12:52:41 +00:00
parent b674d1f6f5
commit d3850e101c
15 changed files with 171 additions and 163 deletions
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28
src/train_cmd.cpp
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@@ -265,7 +265,8 @@ void TrainConsistChanged(Vehicle *v, bool same_length)
}
for (Vehicle *u = v; u != NULL; u = u->Next()) {
const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
const Engine *e_u = GetEngine(u->engine_type);
const RailVehicleInfo *rvi_u = &e_u->u.rail;
if (!HasBit(EngInfo(u->engine_type)->misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
@@ -326,7 +327,7 @@ void TrainConsistChanged(Vehicle *v, bool same_length)
}
}
if (u->cargo_type == rvi_u->cargo_type && u->cargo_subtype == 0) {
if (e_u->CanCarryCargo() && u->cargo_type == e_u->GetDefaultCargoType() && u->cargo_subtype == 0) {
/* Set cargo capacity if we've not been refitted */
u->cargo_cap = GetVehicleProperty(u, 0x14, rvi_u->capacity);
}
@@ -581,8 +582,12 @@ void DrawTrainEngine(int x, int y, EngineID engine, SpriteID pal)
static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, DoCommandFlag flags)
{
const RailVehicleInfo *rvi = RailVehInfo(engine);
CommandCost value(EXPENSES_NEW_VEHICLES, GetEngine(engine)->GetCost());
const Engine *e = GetEngine(engine);
const RailVehicleInfo *rvi = &e->u.rail;
CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
/* Engines without valid cargo should not be available */
if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
if (flags & DC_QUERY_COST) return value;
@@ -643,7 +648,7 @@ static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, DoCommandF
InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
}
v->cargo_type = rvi->cargo_type;
v->cargo_type = e->GetDefaultCargoType();
// v->cargo_subtype = 0;
v->cargo_cap = rvi->capacity;
v->value = value.GetCost();
@@ -733,6 +738,9 @@ CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1,
const Engine *e = GetEngine(p1);
CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
/* Engines with CT_INVALID should not be available */
if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
if (flags & DC_QUERY_COST) return value;
/* Check if the train is actually being built in a depot belonging
@@ -783,7 +791,7 @@ CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1,
v->u.rail.track = TRACK_BIT_DEPOT;
v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
v->spritenum = rvi->image_index;
v->cargo_type = rvi->cargo_type;
v->cargo_type = e->GetDefaultCargoType();
// v->cargo_subtype = 0;
v->cargo_cap = rvi->capacity;
v->max_speed = rvi->max_speed;
@@ -2015,7 +2023,8 @@ CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1,
* some nice [Refit] button near each wagon. --pasky */
if (!CanRefitTo(v->engine_type, new_cid)) continue;
if (v->cargo_cap != 0) {
const Engine *e = GetEngine(v->engine_type);
if (e->CanCarryCargo()) {
uint16 amount = CALLBACK_FAILED;
if (HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_REFIT_CAPACITY)) {
@@ -2032,13 +2041,12 @@ CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1,
}
if (amount == CALLBACK_FAILED) { // callback failed or not used, use default
const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
CargoID old_cid = rvi->cargo_type;
CargoID old_cid = e->GetDefaultCargoType();
/* normally, the capacity depends on the cargo type, a rail vehicle can
* carry twice as much mail/goods as normal cargo, and four times as
* many passengers
*/
amount = rvi->capacity;
amount = e->u.rail.capacity;
switch (old_cid) {
case CT_PASSENGERS: break;
case CT_MAIL: