cpp/openttd-patchpack/source Files · src/newgrf_sound.cpp

Files @ r7882:cdf03a4ac84a

Branch filter:

Location: cpp/openttd-patchpack/source/src/newgrf_sound.cpp

r7882:cdf03a4ac84a 1.7 KiB text/x-c Show Annotation Show as Raw Download as Raw

rubidium

(svn r11433) -Fix: starting OpenTTD with DOS files made it look weird out of the box.
-Change: make extra sprites (the ones not in the TTD GRFs) replaceable using Action 5.
-Feature: make replacing contiguous subsets of sprites in for some types possible in Action 5.
Note to GRF authors: when you replaced OpenTTD sprites that are not from the TTD GRF files using Action A, your GRF will not have the intended result anymore as the sprite numbers have changed. You should replace the Action A with an Action 5 from now on.

/* $Id$ */

/** @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_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 >= 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;
}