147 lines
4.4 KiB
C++
147 lines
4.4 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 "math/angle.h"
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#include "zvision/scripting/scripting_effect.h"
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#include "zvision/sound/volume_manager.h"
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#include "zvision/text/subtitle_manager.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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uint8 getVolume() {
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return _volume;
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}
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virtual void setFade(int32 time, uint8 target) = 0;
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virtual void setBalance(int8 balance); // NB Overrides effects of setDirection()
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void setDirection(Math::Angle azimuth, uint8 magnitude = 255); // NB Overrides effects of setBalance()
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protected:
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void updateMixer();
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virtual void outputMixer() = 0;
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uint8 _volume = 0;
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int8 _balance = 0;
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Math::Angle _azimuth;
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uint8 _directionality; // 0 = fully ambient, 255 = fully directional
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uint8 _volumeOut = 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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void setFade(int32 time, uint8 target) override;
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private:
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void outputMixer() override;
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bool _loop;
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bool _fade;
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uint8 _fadeStartVol;
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uint8 _fadeEndVol;
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uint32 _fadeTime;
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uint32 _fadeElapsed; // Cumulative time since fade start
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bool _stereo;
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Audio::SoundHandle _handle;
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uint16 _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, uint8 program, uint8 note, uint8 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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void setFade(int32 time, uint8 target) override;
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private:
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void outputMixer() override;
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int8 _chan;
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uint8 _noteNumber;
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int8 _pan;
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uint8 _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, uint8 mag = 255, bool resetMixerOnDelete = false, bool staticScreen = false);
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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 _width, _pos;
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Math::Angle _sourcePos, _viewPos;
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uint8 _mag;
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bool _resetMixerOnDelete;
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bool _staticScreen;
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};
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} // End of namespace ZVision
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#endif
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