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Location: cpp/openttd-patchpack/source/src/newgrf_sound.cpp - annotation
r7582:dfefb1216e6f
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(svn r11107) -Feature: some tool so one can still build tunnels under rails (and other structures) when the owner of the structure built it on foundations and if you have enough "empty" space ofcourse. One could use the tool for some other construction needs too. Patch by frosch.
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/** @file newgrf_sound.cpp */
#include "stdafx.h"
#include "openttd.h"
#include "oldpool.h"
#include "sound.h"
#include "engine.h"
#include "vehicle.h"
#include "newgrf_callbacks.h"
#include "newgrf_engine.h"
#include "newgrf_sound.h"
static uint _sound_count = 0;
STATIC_OLD_POOL(SoundInternal, FileEntry, 3, 1000, NULL, NULL)
/* Allocate a new FileEntry */
FileEntry *AllocateFileEntry()
{
if (_sound_count == GetSoundInternalPoolSize()) {
if (!_SoundInternal_pool.AddBlockToPool()) return NULL;
}
return GetSoundInternal(_sound_count++);
}
void InitializeSoundPool()
{
_SoundInternal_pool.CleanPool();
_sound_count = 0;
/* Copy original sound data to the pool */
SndCopyToPool();
}
FileEntry *GetSound(uint index)
{
if (index >= GetNumSounds()) return NULL;
return GetSoundInternal(index);
}
uint GetNumSounds()
{
return _sound_count;
}
bool PlayVehicleSound(const Vehicle *v, VehicleSoundEvent event)
{
const GRFFile *file = GetEngineGRF(v->engine_type);
uint16 callback;
/* If the engine has no GRF ID associated it can't ever play any new sounds */
if (file == NULL) return false;
/* Check that the vehicle type uses the sound effect callback */
if (!HASBIT(EngInfo(v->engine_type)->callbackmask, CBM_SOUND_EFFECT)) return false;
callback = GetVehicleCallback(CBID_VEHICLE_SOUND_EFFECT, event, 0, v->engine_type, v);
if (callback == CALLBACK_FAILED) return false;
if (callback >= GetNumOriginalSounds()) callback += file->sound_offset - GetNumOriginalSounds();
if (callback < GetNumSounds()) SndPlayVehicleFx((SoundFx)callback, v);
return true;
}
bool PlayHouseSound(uint16 sound_id, TileIndex tile)
{
if (sound_id < GetNumOriginalSounds()) {
SndPlayTileFx((SoundFx)sound_id, tile);
return true;
}
return false;
}
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