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annotate src/newgrf_sound.cpp @ 7333:7110c41ab174 draft

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(svn r10696) -Codechange: remove duplication of the "make sprite transparent" code.
author rubidium <rubidium@openttd.org>
date Thu, 26 Jul 2007 14:07:11 +0000
parents bcf98ba27bbf
children 1e97c047c9f6
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5584
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1 /* $Id$ */
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3 /** @file newgrf_sound.cpp */
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4
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5 #include "stdafx.h"
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6 #include "openttd.h"
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7 #include "oldpool.h"
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8 #include "sound.h"
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9 #include "engine.h"
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10 #include "vehicle.h"
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11 #include "newgrf_callbacks.h"
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12 #include "newgrf_engine.h"
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13 #include "newgrf_sound.h"
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14
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15 static uint _sound_count = 0;
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16 STATIC_OLD_POOL(SoundInternal, FileEntry, 3, 1000, NULL, NULL)
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19 /* Allocate a new FileEntry */
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20 FileEntry *AllocateFileEntry()
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21 {
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22 if (_sound_count == GetSoundInternalPoolSize()) {
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23 if (!AddBlockToPool(&_SoundInternal_pool)) return NULL;
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24 }
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26 return GetSoundInternal(_sound_count++);
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27 }
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30 void InitializeSoundPool()
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31 {
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32 CleanPool(&_SoundInternal_pool);
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33 _sound_count = 0;
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35 /* Copy original sound data to the pool */
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36 SndCopyToPool();
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37 }
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40 FileEntry *GetSound(uint index)
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41 {
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42 if (index >= GetNumSounds()) return NULL;
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43 return GetSoundInternal(index);
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44 }
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47 uint GetNumSounds()
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48 {
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49 return _sound_count;
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50 }
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53 bool PlayVehicleSound(const Vehicle *v, VehicleSoundEvent event)
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54 {
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55 const GRFFile *file = GetEngineGRF(v->engine_type);
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56 uint16 callback;
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58 /* If the engine has no GRF ID associated it can't ever play any new sounds */
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59 if (file == NULL) return false;
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61 /* Check that the vehicle type uses the sound effect callback */
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62 if (!HASBIT(EngInfo(v->engine_type)->callbackmask, CBM_SOUND_EFFECT)) return false;
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64 callback = GetVehicleCallback(CBID_VEHICLE_SOUND_EFFECT, event, 0, v->engine_type, v);
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65 if (callback == CALLBACK_FAILED) return false;
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66 if (callback >= GetNumOriginalSounds()) callback += file->sound_offset - GetNumOriginalSounds();
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67
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68 if (callback < GetNumSounds()) SndPlayVehicleFx((SoundFx)callback, v);
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69 return true;
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70 }
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72 bool PlayHouseSound(uint16 sound_id, TileIndex tile)
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73 {
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74 if (sound_id < GetNumOriginalSounds()) {
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75 SndPlayTileFx((SoundFx)sound_id, tile);
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76 return true;
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77 }
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78 return false;
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79 }