ILLUSIONS: More work on Duckman

- Implement Duckman cursor and interaction handling
- Add more script opcodes
- Add TextDrawer and ScreenText (needs minor refactoring for BBDOU)

1 files changed, 171 insertions, 0 deletions

diff --git a/engines/illusions/screentext.cpp b/engines/illusions/screentext.cpp
new file mode 100644
index 0000000000..684ab5a426
--- /dev/null
+++ b/engines/illusions/screentext.cpp
@@ -0,0 +1,171 @@
+/* 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.
+ *
+ */
+
+#include "illusions/illusions.h"
+#include "illusions/screentext.h"
+#include "illusions/dictionary.h"
+#include "illusions/fontresource.h"
+#include "illusions/screen.h"
+#include "illusions/textdrawer.h"
+#include "engines/util.h"
+#include "graphics/palette.h"
+
+namespace Illusions {
+
+ScreenText::ScreenText(IllusionsEngine *vm)
+	: _vm(vm), _surface(0) {
+}
+
+ScreenText::~ScreenText() {
+}
+
+void ScreenText::getTextInfoDimensions(WidthHeight &textInfoDimensions) {
+	textInfoDimensions = _dimensions;
+}
+
+void ScreenText::setTextInfoPosition(Common::Point position) {
+	_position = position;
+	clipTextInfoPosition(_position);
+}
+
+void ScreenText::updateTextInfoPosition(Common::Point position) {
+	WidthHeight dimensions;
+	getTextInfoDimensions(dimensions);
+	position.x = position.x - dimensions._width / 2;
+	position.y = position.y - dimensions._height / 2;
+	setTextInfoPosition(position);
+}
+
+void ScreenText::clipTextInfoPosition(Common::Point &position) {
+	// TODO Set min/max for BBDOU
+	if (position.x < 2)
+		position.x = 2;
+	else if (position.x + _dimensions._width > 318)
+		position.x = 318 - _dimensions._width;
+	if (position.y < 2)
+		position.y = 2;
+	else if (position.y + _dimensions._height > 198)
+		position.y = 198 - _dimensions._height;
+}
+
+bool ScreenText::refreshScreenText(FontResource *font, WidthHeight dimensions, Common::Point offsPt,
+	uint16 *text, uint textFlags, uint16 color2, uint16 color1, uint16 *&outTextPtr) {
+	TextDrawer textDrawer;
+	bool done = textDrawer.wrapText(font, text, &dimensions, offsPt, textFlags, outTextPtr);
+	_surface = _vm->_screen->allocSurface(dimensions._width, dimensions._height);
+	_dimensions = dimensions;
+	textDrawer.drawText(_vm->_screen, _surface, color2, color1);
+	return done;
+}
+
+bool ScreenText::insertText(uint16 *text, uint32 fontId, WidthHeight dimensions, Common::Point offsPt, uint flags,
+	uint16 color2, uint16 color1, byte colorR, byte colorG, byte colorB, uint16 *&outTextPtr) {
+	
+	if (!_screenTexts.empty()) {
+		ScreenTextEntry *screenText = _screenTexts.back();
+		screenText->_info._position = _position;
+		freeTextSurface();
+	}
+	
+	ScreenTextEntry *screenText = new ScreenTextEntry();
+	screenText->_info._fontId = fontId;
+	screenText->_info._dimensions = dimensions;
+	screenText->_info._offsPt = offsPt;
+	screenText->_info._flags = 0;
+	if (flags & 8)
+		screenText->_info._flags |= 8;
+	if (flags & 0x10)
+		screenText->_info._flags |= 0x10;
+	if (flags & 1)
+		screenText->_info._flags |= 1;
+	else
+		screenText->_info._flags |= 2;
+	screenText->_info._color2 = color2;
+	screenText->_info._color1 = color1;
+	screenText->_info._colorR = colorR;
+	screenText->_info._colorG = colorG;
+	screenText->_info._colorB = colorB;
+	_screenTexts.push_back(screenText);
+
+	FontResource *font = _vm->_dict->findFont(screenText->_info._fontId);
+	bool done = refreshScreenText(font, screenText->_info._dimensions, screenText->_info._offsPt,
+		text, screenText->_info._flags, screenText->_info._color2, screenText->_info._color1,
+		outTextPtr);
+	_vm->_screen->setPaletteEntry(font->getColorIndex(), screenText->_info._colorR, screenText->_info._colorG, screenText->_info._colorB);
+
+	uint16 *textPart = screenText->_text;
+	while (text != outTextPtr)
+		*textPart++ = *text++;
+	*textPart = 0;
+
+	updateTextInfoPosition(Common::Point(160, 100));
+
+	return done;
+}
+
+void ScreenText::removeText() {
+	freeTextSurface();
+
+	if (!_screenTexts.empty()) {
+		ScreenTextEntry *screenText = _screenTexts.back();
+		delete screenText;
+		_screenTexts.pop_back();
+	}
+
+	if (!_screenTexts.empty()) {
+		ScreenTextEntry *screenText = _screenTexts.back();
+		if (screenText->_info._fontId) {
+			uint16 *outTextPtr;
+			FontResource *font = _vm->_dict->findFont(screenText->_info._fontId);
+			refreshScreenText(font, screenText->_info._dimensions, screenText->_info._offsPt,
+				screenText->_text, screenText->_info._flags, screenText->_info._color2, screenText->_info._color1,
+				outTextPtr);
+			_vm->_screen->setPaletteEntry(font->getColorIndex(), screenText->_info._colorR, screenText->_info._colorG, screenText->_info._colorB);
+			setTextInfoPosition(screenText->_info._position);
+		}
+	}
+
+}
+
+void ScreenText::clearText() {
+	
+	if (!_screenTexts.empty()) {
+		ScreenTextEntry *screenText = _screenTexts.back();
+		screenText->_info._position = _position;
+		freeTextSurface();
+	}
+	
+	ScreenTextEntry *screenText = new ScreenTextEntry();
+	screenText->_info._fontId = 0;
+	_screenTexts.push_back(screenText);
+
+}
+
+void ScreenText::freeTextSurface() {
+	if (_surface) {
+		_surface->free();
+		delete _surface;
+		_surface = 0;
+	}
+}
+
+} // End of namespace Illusions