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/* $Id$ */
/** @file newgrf_sound.cpp Handling NewGRF provided sounds. */
#include "stdafx.h"
#include "engine_base.h"
#include "newgrf_engine.h"
#include "newgrf_sound.h"
#include "vehicle_base.h"
#include "sound_func.h"
#include "core/smallvec_type.hpp"
static SmallVector<SoundEntry, ORIGINAL_SAMPLE_COUNT> _sounds;
/* Allocate a new Sound */
SoundEntry *AllocateSound()
{
return _sounds.Append();
}
void InitializeSoundPool()
{
_sounds.Clear();
/* Copy original sound data to the pool */
SndCopyToPool();
}
SoundEntry *GetSound(SoundID index)
{
if (index >= _sounds.Length()) return NULL;
return &_sounds[index];
}
uint GetNumSounds()
{
return _sounds.Length();
}
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_VEHICLE_SOUND_EFFECT)) return false;
callback = GetVehicleCallback(CBID_VEHICLE_SOUND_EFFECT, event, 0, v->engine_type, v);
if (callback == CALLBACK_FAILED) return false;
if (callback >= ORIGINAL_SAMPLE_COUNT) callback += file->sound_offset - ORIGINAL_SAMPLE_COUNT;
if (callback < GetNumSounds()) SndPlayVehicleFx(callback, v);
return true;
}
bool PlayTileSound(const GRFFile *file, SoundID sound_id, TileIndex tile)
{
if (sound_id >= ORIGINAL_SAMPLE_COUNT) sound_id += file->sound_offset - ORIGINAL_SAMPLE_COUNT;
if (sound_id < GetNumSounds()) {
SndPlayTileFx(sound_id, tile);
return true;
}
return false;
}
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