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136 lines
4 KiB
C++
136 lines
4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef ZVISION_MUSIC_NODE_H
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#define ZVISION_MUSIC_NODE_H
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#include "audio/mixer.h"
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#include "zvision/scripting/scripting_effect.h"
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#include "zvision/text/subtitles.h"
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namespace Common {
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class String;
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}
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namespace ZVision {
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class MusicNodeBASE : public ScriptingEffect {
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public:
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MusicNodeBASE(ZVision *engine, uint32 key, ScriptingEffectType type) : ScriptingEffect(engine, key, type) {}
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~MusicNodeBASE() override {}
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/**
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* Decrement the timer by the delta time. If the timer is finished, set the status
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* in _globalState and let this node be deleted
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*
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* @param deltaTimeInMillis The number of milliseconds that have passed since last frame
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* @return If true, the node can be deleted after process() finishes
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*/
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bool process(uint32 deltaTimeInMillis) override = 0;
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virtual void setVolume(uint8 volume) = 0;
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virtual uint8 getVolume() = 0;
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virtual void setDeltaVolume(uint8 volume) = 0;
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virtual void setBalance(int8 balance) = 0;
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virtual void setFade(int32 time, uint8 target) = 0;
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};
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class MusicNode : public MusicNodeBASE {
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public:
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MusicNode(ZVision *engine, uint32 key, Common::Path &file, bool loop, uint8 volume);
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~MusicNode() override;
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/**
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* Decrement the timer by the delta time. If the timer is finished, set the status
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* in _globalState and let this node be deleted
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*
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* @param deltaTimeInMillis The number of milliseconds that have passed since last frame
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* @return If true, the node can be deleted after process() finishes
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*/
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bool process(uint32 deltaTimeInMillis) override;
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void setVolume(uint8 volume) override;
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uint8 getVolume() override;
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void setDeltaVolume(uint8 volume) override;
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void setBalance(int8 balance) override;
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void setFade(int32 time, uint8 target) override;
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private:
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uint8 _volume;
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uint8 _deltaVolume;
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int8 _balance;
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bool _loop;
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bool _crossfade;
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uint8 _crossfadeTarget;
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int32 _crossfadeTime;
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bool _stereo;
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Audio::SoundHandle _handle;
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Subtitle *_sub;
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bool _loaded;
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};
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// Only used by Zork: Nemesis, for the flute and piano puzzles (tj4e and ve6f, as well as vr)
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class MusicMidiNode : public MusicNodeBASE {
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public:
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MusicMidiNode(ZVision *engine, uint32 key, int8 program, int8 note, int8 volume);
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~MusicMidiNode() override;
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/**
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* Decrement the timer by the delta time. If the timer is finished, set the status
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* in _globalState and let this node be deleted
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*
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* @param deltaTimeInMillis The number of milliseconds that have passed since last frame
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* @return If true, the node can be deleted after process() finishes
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*/
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bool process(uint32 deltaTimeInMillis) override;
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void setVolume(uint8 volume) override;
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uint8 getVolume() override;
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void setDeltaVolume(uint8 volume) override;
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void setBalance(int8 balance) override;
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void setFade(int32 time, uint8 target) override;
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private:
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int8 _chan;
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int8 _noteNumber;
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int8 _pan;
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int8 _volume;
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int8 _prog;
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};
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class PanTrackNode : public ScriptingEffect {
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public:
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PanTrackNode(ZVision *engine, uint32 key, uint32 slot, int16 pos);
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~PanTrackNode() override;
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bool process(uint32 deltaTimeInMillis) override;
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private:
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uint32 _slot;
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int16 _position;
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};
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} // End of namespace ZVision
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#endif
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