AGI: Reorganize the PreAGI code a bit

1 files changed, 174 insertions, 22 deletions

diff --git a/engines/agi/preagi.cpp b/engines/agi/preagi.cpp
index 5bbf072918..065b93e5f9 100644
--- a/engines/agi/preagi.cpp
+++ b/engines/agi/preagi.cpp
@@ -22,13 +22,13 @@
 
 #include "common/config-manager.h"
 #include "common/debug-channels.h"
+#include "common/events.h"
 #include "common/random.h"
 #include "common/textconsole.h"
 
-#include "audio/mididrv.h"
-
 #include "agi/preagi.h"
 #include "agi/graphics.h"
+#include "agi/keyboard.h"
 
 namespace Agi {
 
@@ -54,22 +54,6 @@ PreAgiEngine::PreAgiEngine(OSystem *syst, const AGIGameDescription *gameDesc) :
 }
 
 void PreAgiEngine::initialize() {
-	// TODO: Some sound emulation modes do not fit our current music
-	//       drivers, and I'm not sure what they are. For now, they might
-	//       as well be called "PC Speaker" and "Not PC Speaker".
-
-	switch (MidiDriver::getMusicType(MidiDriver::detectDevice(MDT_PCSPK|MDT_PCJR))) {
-	case MT_PCSPK:
-		_soundemu = SOUND_EMU_PC;
-		break;
-	case MT_PCJR:
-		_soundemu = SOUND_EMU_PCJR;
-		break;
-	default:
-		_soundemu = SOUND_EMU_NONE;
-		break;
-	}
-
 	if (ConfMan.hasKey("render_mode")) {
 		_renderMode = Common::parseRenderMode(ConfMan.get("render_mode").c_str());
 	} else if (ConfMan.hasKey("platform")) {
@@ -87,7 +71,6 @@ void PreAgiEngine::initialize() {
 	}
 
 	_gfx = new GfxMgr(this);
-	_sound = new SoundMgr(this, _mixer);
 	_picture = new PictureMgr(this, _gfx);
 
 	_gfx->initMachine();
@@ -108,7 +91,6 @@ void PreAgiEngine::initialize() {
 	_game.lineMinPrint = 0; // hardcoded
 
 	_gfx->initVideo();
-	_sound->initSound();
 
 	_speakerStream = new Audio::PCSpeaker(_mixer->getOutputRate());
 	_mixer->playStream(Audio::Mixer::kSFXSoundType, &_speakerHandle,
@@ -123,8 +105,6 @@ void PreAgiEngine::initialize() {
 		memset(&_game.dirPic[i], 0, sizeof(struct AgiDir));
 		memset(&_game.dirSound[i], 0, sizeof(struct AgiDir));
 	}
-
-	debugC(2, kDebugLevelMain, "Init sound");
 }
 
 PreAgiEngine::~PreAgiEngine() {
@@ -136,4 +116,176 @@ int PreAgiEngine::rnd(int hi) {
 	return (_rnd->getRandomNumber(hi - 1) + 1);
 }
 
+// Screen functions
+void PreAgiEngine::clearScreen(int attr, bool overrideDefault) {
+	if (overrideDefault)
+		_defaultColor = attr;
+
+	_gfx->clearScreen((attr & 0xF0) / 0x10);
+}
+
+void PreAgiEngine::clearGfxScreen(int attr) {
+	_gfx->drawRectangle(0, 0, GFX_WIDTH - 1, IDI_MAX_ROW_PIC * 8 -1, (attr & 0xF0) / 0x10);
+}
+
+// String functions
+
+void PreAgiEngine::drawStr(int row, int col, int attr, const char *buffer) {
+	int code;
+
+	if (attr == kColorDefault)
+		attr = _defaultColor;
+
+	for (int iChar = 0; iChar < (int)strlen(buffer); iChar++) {
+		code = buffer[iChar];
+
+		switch (code) {
+		case '\n':
+		case 0x8D:
+			if (++row == 200 / 8) return;
+			col = 0;
+			break;
+
+		case '|':
+			// swap attribute nibbles
+			break;
+
+		default:
+			_gfx->putTextCharacter(1, col * 8 , row * 8, static_cast<char>(code), attr & 0x0f, (attr & 0xf0) / 0x10, false, getGameID() == GID_MICKEY ? mickey_fontdata : ibm_fontdata);
+
+			if (++col == 320 / 8) {
+				col = 0;
+				if (++row == 200 / 8) return;
+			}
+		}
+	}
+}
+
+void PreAgiEngine::drawStrMiddle(int row, int attr, const char *buffer) {
+	int col = (25 / 2) - (strlen(buffer) / 2);	// 25 = 320 / 8 (maximum column)
+	drawStr(row, col, attr, buffer);
+}
+
+void PreAgiEngine::clearTextArea() {
+	int start = IDI_MAX_ROW_PIC;
+
+	if (getGameID() == GID_TROLL)
+		start = 21;
+
+	for (int row = start; row < 200 / 8; row++) {
+		clearRow(row);
+	}
+}
+
+void PreAgiEngine::clearRow(int row) {
+	drawStr(row, 0, IDA_DEFAULT, "                                        ");	// 40 spaces
+}
+
+void PreAgiEngine::printStr(const char* szMsg) {
+	clearTextArea();
+	drawStr(21, 0, IDA_DEFAULT, szMsg);
+	_gfx->doUpdate();
+	_system->updateScreen();
+}
+
+void PreAgiEngine::XOR80(char *buffer) {
+	for (size_t i = 0; i < strlen(buffer); i++)
+		if (buffer[i] & 0x80)
+			buffer[i] ^= 0x80;
+}
+
+void PreAgiEngine::printStrXOR(char *szMsg) {
+	XOR80(szMsg);
+	printStr(szMsg);
+}
+
+// Input functions
+
+int PreAgiEngine::getSelection(SelectionTypes type) {
+	Common::Event event;
+
+	while (!shouldQuit()) {
+		while (_eventMan->pollEvent(event)) {
+			switch (event.type) {
+			case Common::EVENT_RTL:
+			case Common::EVENT_QUIT:
+				return 0;
+			case Common::EVENT_RBUTTONUP:
+				return 0;
+			case Common::EVENT_LBUTTONUP:
+				if (type == kSelYesNo || type == kSelAnyKey)
+					return 1;
+			case Common::EVENT_KEYDOWN:
+				if (event.kbd.keycode == Common::KEYCODE_d && (event.kbd.flags & Common::KBD_CTRL) && _console) {
+					_console->attach();
+					_console->onFrame();
+					//FIXME: If not cleared, clicking again will start the console
+					event.kbd.keycode = Common::KEYCODE_INVALID;
+					event.kbd.flags = 0;
+					continue;
+				}
+				switch (event.kbd.keycode) {
+				case Common::KEYCODE_y:
+					if (type == kSelYesNo)
+						return 1;
+				case Common::KEYCODE_n:
+					if (type == kSelYesNo)
+						return 0;
+				case Common::KEYCODE_ESCAPE:
+					if (type == kSelNumber || type == kSelAnyKey)
+						return 0;
+				case Common::KEYCODE_1:
+				case Common::KEYCODE_2:
+				case Common::KEYCODE_3:
+				case Common::KEYCODE_4:
+				case Common::KEYCODE_5:
+				case Common::KEYCODE_6:
+				case Common::KEYCODE_7:
+				case Common::KEYCODE_8:
+				case Common::KEYCODE_9:
+					if (type == kSelNumber)
+						return event.kbd.keycode - Common::KEYCODE_1 + 1;
+				case Common::KEYCODE_SPACE:
+					if (type == kSelSpace)
+						return 1;
+				case Common::KEYCODE_BACKSPACE:
+					if (type == kSelBackspace)
+						return 0;
+				default:
+					if (event.kbd.flags & Common::KBD_CTRL)
+						break;
+					if (type == kSelYesNo) {
+						return 2;
+					} else if (type == kSelNumber) {
+						return 10;
+					} else if (type == kSelAnyKey || type == kSelBackspace) {
+						return 1;
+					}
+				}
+				break;
+			default:
+				break;
+			}
+		}
+		_system->updateScreen();
+		_system->delayMillis(10);
+	}
+	return 0;
+}
+
+void PreAgiEngine::playNote(int16 frequency, int32 length) {
+	_speakerStream->play(Audio::PCSpeaker::kWaveFormSquare, frequency, length);
+	waitForTimer(length);
+}
+
+void PreAgiEngine::waitForTimer(int msec_delay) {
+	uint32 start_time = _system->getMillis();
+
+	while (_system->getMillis() < start_time + msec_delay) {
+		_gfx->doUpdate();
+		_system->updateScreen();
+		_system->delayMillis(10);
+	}
+}
+
 } // End of namespace Agi