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(svn r26802) -Add: Command to set visibility of an engine for a company (based on patch by Juanjo).

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alberth
2014-09-07 16:12:58 +00:00
parent 7df9a39172
commit 44d2f6a988
7 changed files with 57 additions and 1 deletions
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36
src/engine.cpp
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@@ -655,6 +655,7 @@ void StartupOneEngine(Engine *e, Date aging_date)
e->age = 0;
e->flags = 0;
e->company_avail = 0;
e->company_hidden = 0;
/* Don't randomise the start-date in the first two years after gamestart to ensure availability
* of engines in early starting games.
@@ -853,6 +854,41 @@ void EnginesDailyLoop()
}
}
/**
* Clear the 'hidden' flag for all engines of a new company.
* @param cid Company being created.
*/
void ClearEnginesHiddenFlagOfCompany(CompanyID cid)
{
Engine *e;
FOR_ALL_ENGINES(e) {
SB(e->company_hidden, cid, 1, 0);
}
}
/**
* Set the visibility of an engine.
* @param tile Unused.
* @param flags Operation to perform.
* @param p1 Unused.
* @param p2 Bit 31: 0=visible, 1=hidden, other bits for the #EngineID.
* @param text Unused.
* @return The cost of this operation or an error.
*/
CommandCost CmdSetVehicleVisibility(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Engine *e = Engine::GetIfValid(GB(p2, 0, 31));
if (e == NULL || _current_company >= MAX_COMPANIES) return CMD_ERROR;
if ((e->flags & ENGINE_AVAILABLE) == 0 || !HasBit(e->company_avail, _current_company)) return CMD_ERROR;
if ((flags & DC_EXEC) != 0) {
SB(e->company_hidden, _current_company, 1, GB(p2, 31, 1));
AddRemoveEngineFromAutoreplaceAndBuildWindows(e->type);
}
return CommandCost();
}
/**
* Accept an engine prototype. XXX - it is possible that the top-company
* changes while you are waiting to accept the offer? Then it becomes invalid