1 files changed, 137 insertions, 0 deletions
diff --git a/engines/zvision/scripting/effects/music_effect.h b/engines/zvision/scripting/effects/music_effect.h
new file mode 100644
index 0000000000..7657be8e09
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+++ b/engines/zvision/scripting/effects/music_effect.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef ZVISION_MUSIC_NODE_H
+#define ZVISION_MUSIC_NODE_H
+
+#include "audio/mixer.h"
+#include "zvision/scripting/scripting_effect.h"
+#include "zvision/text/subtitles.h"
+
+namespace Common {
+class String;
+}
+
+namespace ZVision {
+
+class MusicNodeBASE : public ScriptingEffect {
+public:
+	MusicNodeBASE(ZVision *engine, uint32 key, ScriptingEffectType type) : ScriptingEffect(engine, key, type) {}
+	~MusicNodeBASE() {}
+
+	/**
+	 * Decrement the timer by the delta time. If the timer is finished, set the status
+	 * in _globalState and let this node be deleted
+	 *
+	 * @param deltaTimeInMillis    The number of milliseconds that have passed since last frame
+	 * @return                     If true, the node can be deleted after process() finishes
+	 */
+	virtual bool process(uint32 deltaTimeInMillis) = 0;
+
+	virtual void setVolume(uint8 volume) = 0;
+	virtual uint8 getVolume() = 0;
+	virtual void setDeltaVolume(uint8 volume) = 0;
+	virtual void setBalance(int8 balance) = 0;
+
+	virtual void setFade(int32 time, uint8 target) = 0;
+};
+
+class MusicNode : public MusicNodeBASE {
+public:
+	MusicNode(ZVision *engine, uint32 key, Common::String &file, bool loop, uint8 volume);
+	~MusicNode();
+
+	/**
+	 * Decrement the timer by the delta time. If the timer is finished, set the status
+	 * in _globalState and let this node be deleted
+	 *
+	 * @param deltaTimeInMillis    The number of milliseconds that have passed since last frame
+	 * @return                     If true, the node can be deleted after process() finishes
+	 */
+	bool process(uint32 deltaTimeInMillis);
+
+	void setVolume(uint8 volume);
+	uint8 getVolume();
+	void setDeltaVolume(uint8 volume);
+	void setBalance(int8 balance);
+
+	void setFade(int32 time, uint8 target);
+
+private:
+	uint8 _volume;
+	uint8 _deltaVolume;
+	int8 _balance;
+	bool _loop;
+	bool _crossfade;
+	uint8 _crossfadeTarget;
+	int32 _crossfadeTime;
+	bool _stereo;
+	Audio::SoundHandle _handle;
+	Subtitle *_sub;
+	bool _loaded;
+};
+
+// Only used by Zork: Nemesis, for the flute and piano puzzles (tj4e and ve6f, as well as vr)
+class MusicMidiNode : public MusicNodeBASE {
+public:
+	MusicMidiNode(ZVision *engine, uint32 key, int8 program, int8 note, int8 volume);
+	~MusicMidiNode();
+
+	/**
+	 * Decrement the timer by the delta time. If the timer is finished, set the status
+	 * in _globalState and let this node be deleted
+	 *
+	 * @param deltaTimeInMillis    The number of milliseconds that have passed since last frame
+	 * @return                     If true, the node can be deleted after process() finishes
+	 */
+	bool process(uint32 deltaTimeInMillis);
+
+	void setVolume(uint8 volume);
+	uint8 getVolume();
+	void setDeltaVolume(uint8 volume);
+	void setBalance(int8 balance);
+
+	void setFade(int32 time, uint8 target);
+
+private:
+	int8 _chan;
+	int8 _noteNumber;
+	int8 _pan;
+	int8 _volume;
+	int8 _prog;
+};
+
+class PanTrackNode : public ScriptingEffect {
+public:
+	PanTrackNode(ZVision *engine, uint32 key, uint32 slot, int16 pos);
+	~PanTrackNode();
+
+	bool process(uint32 deltaTimeInMillis);
+
+private:
+	uint32 _slot;
+	int16 _position;
+};
+
+} // End of namespace ZVision
+
+#endif