Implement PlayNote/StopNote and PlayTele/StopTele for The Manhole.

svn-id: r51066

1 files changed, 71 insertions, 12 deletions

diff --git a/engines/made/scriptfuncs.cpp b/engines/made/scriptfuncs.cpp
index cd4081ea52..8d01ec70f3 100644
--- a/engines/made/scriptfuncs.cpp
+++ b/engines/made/scriptfuncs.cpp
@@ -28,6 +28,7 @@
 #include "common/events.h"
 #include "graphics/cursorman.h"
 #include "sound/audiocd.h"
+#include "sound/softsynth/pcspk.h"
 
 #include "made/made.h"
 #include "made/resource.h"
@@ -41,6 +42,22 @@
 
 namespace Made {
 
+ScriptFunctions::ScriptFunctions(MadeEngine *vm) : _vm(vm), _soundStarted(false) {
+	// Initialize the two tone generators
+	_pcSpeaker1 = new Audio::PCSpeaker();
+	_pcSpeaker2 = new Audio::PCSpeaker();
+	_vm->_system->getMixer()->playStream(Audio::Mixer::kMusicSoundType, &_pcSpeakerHandle1, _pcSpeaker1);
+	_vm->_system->getMixer()->playStream(Audio::Mixer::kMusicSoundType, &_pcSpeakerHandle2, _pcSpeaker2);
+}
+
+ScriptFunctions::~ScriptFunctions() {
+	for (uint i = 0; i < _externalFuncs.size(); ++i)
+			delete _externalFuncs[i];
+
+	_vm->_system->getMixer()->stopHandle(_pcSpeakerHandle1);
+	_vm->_system->getMixer()->stopHandle(_pcSpeakerHandle2);
+}
+
 typedef Common::Functor2Mem<int16, int16*, int16, ScriptFunctions> ExternalScriptFunc;
 #define External(x) \
 	_externalFuncs.push_back(new ExternalScriptFunc(this, &ScriptFunctions::x));  \
@@ -308,36 +325,78 @@ int16 ScriptFunctions::sfFlashScreen(int16 argc, int16 *argv) {
 }
 
 int16 ScriptFunctions::sfPlayNote(int16 argc, int16 *argv) {
-	// TODO: Used in Manhole:NE, Manhole EGA
-	// This is used when using the piano in the desk screen inside the ship.
+	// This is used when using the piano in the desk screen inside the ship
+	// in The Manhole (EGA/NE).
+
 	// It takes 2 parameters:
-	// The first parameter is the key pressed
+	// The first parameter is the note number of the key pressed + 1
 	// The second parameter is some sort of modifier (volume, perhaps?),
-	// depending on which of the 3 keys on the right has been pressed (12 - 14)
-	warning("Unimplemented opcode: sfPlayNote");
+	// depending on which of the 3 keys on the right has been pressed.
+	// This value seems to be [12, 14] in NE and [1, 3] in EGA.
+
+	// Note frequencies based on http://www.phy.mtu.edu/~suits/notefreqs.html
+	static const int freqTable[] = {
+		16, 17, 18, 19, 21, 22, 23, 24, 26, 28, 29,
+		30, 32, 35, 37, 39, 41, 44, 46, 49, 52, 55,
+		58, 62, 65, 69, 73, 77, 82, 87, 93, 98, 104,
+		110, 117, 123, 131, 139, 147, 156, 165, 175, 195,
+		196, 208, 220, 233, 247, 262, 277, 294, 311, 330,
+		349, 370, 392, 415, 440, 466, 494, 523, 554, 587,
+		622, 659, 698, 740, 784, 831, 880, 932, 988, 1047,
+		1109, 1175, 1245, 1319, 1397, 1480, 1568, 1661, 1760,
+		1865, 1976, 2093, 2217, 2349, 2489, 2637, 2794, 2960,
+		3136, 3322, 3529, 3729, 3951, 4186, 4435, 4697, 4978
+	};
+
+	debug(4, "sfPlayNote: Note = %d, Volume(?) = %d", argv[0] - 1, argv[1]);
+
+	_pcSpeaker1->play(Audio::PCSpeaker::kWaveFormSine, freqTable[argv[0] - 1], -1);
+
+	// TODO: Figure out what to do with the second parameter
+	//_pcSpeaker1->setVolume(argv[1]);
+
 	return 0;
 }
 
 int16 ScriptFunctions::sfStopNote(int16 argc, int16 *argv) {
-	// TODO: Used in Manhole:NE, Manhole EGA
 	// Used in the same place as sfPlayNote, with the same parameters
-	warning("Unimplemented opcode: sfStopNote");
+	// We just stop the wave generator here
+	_pcSpeaker1->stop();
 	return 0;
 }
 
 int16 ScriptFunctions::sfPlayTele(int16 argc, int16 *argv) {
-	// TODO: Used in Manhole:NE, Manhole EGA
 	// This is used when pressing the phone keys while using the phone in
-	// the desk screen inside the ship.
+	// the desk screen inside the ship in The Manhole (EGA/NE).
 	// It takes 1 parameter, the key pressed (0-9, 10 for asterisk, 11 for hash)
-	warning("Unimplemented opcode: sfPlayTele");
+
+	// A telephone keypad uses a two tones for each key.
+	// See http://en.wikipedia.org/wiki/Telephone_keypad for more info
+
+	static const int freqTable1[] = {
+		1336, 1209, 1336, 1477,
+		1209, 1336, 1477, 1209,
+		1336, 1477, 1209, 1477
+	};
+
+	static const int freqTable2[] = {
+		941, 697, 697, 697,
+		770, 770, 770, 852,
+		852, 852, 941, 941
+	};
+
+	debug(4, "sfPlayTele: Button = %d", argv[0]);
+
+	_pcSpeaker1->play(Audio::PCSpeaker::kWaveFormSine, freqTable1[argv[0]], -1);
+	_pcSpeaker2->play(Audio::PCSpeaker::kWaveFormSine, freqTable2[argv[0]], -1);
 	return 0;
 }
 
 int16 ScriptFunctions::sfStopTele(int16 argc, int16 *argv) {
-	// TODO: Used in Manhole:NE, Manhole EGA
 	// Used in the same place as sfPlayTele, with the same parameters
-	warning("Unimplemented opcode: sfStopTele");
+	// We just stop both wave generators here
+	_pcSpeaker1->stop();
+	_pcSpeaker2->stop();
 	return 0;
 }