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AVALANCHE: Partially implement Help::getMe().

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The drawing of the buttons are still missing.
This commit is contained in:
uruk 2014-02-11 22:34:27 +01:00
parent 62ad697c9a
commit db2baa6f06
4 changed files with 76 additions and 4 deletions
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19
engines/avalanche/graphics.cpp
View File

@ -352,6 +352,25 @@ void GraphicManager::drawNormalText(const Common::String text, FontType font, by
drawText(_surface, text, font, fontHeight, x, y, color);
}
/**
* Used in Help. Draws text double the size of the normal.
*/
void GraphicManager::drawBigText(const Common::String text, FontType font, byte fontHeight, int16 x, int16 y, Color color) {
for (uint i = 0; i < text.size(); i++) {
for (int j = 0; j < fontHeight; j++) {
byte pixel = font[(byte)text[i]][j];
byte pixelBit = 0;
for (int bit = 0; bit < 16; bit++) {
if ((bit % 2) == 0)
pixelBit = (pixel >> (bit / 2)) & 1;
for (int k = 0; k < 2; k++)
if (pixelBit)
*(byte *)_surface.getBasePtr(x + i * 16 + 16 - bit, y + j * 2 + k) = color;
}
}
}
}
void GraphicManager::drawScrollText(const Common::String text, FontType font, byte fontHeight, int16 x, int16 y, Color color) {
drawText(_scrolls, text, font, fontHeight, x, y, color);
}

1
engines/avalanche/graphics.h
View File

@ -67,6 +67,7 @@ public:
void drawFilledRectangle(Common::Rect rect, Color color);
void drawRectangle(Common::Rect rect, Color color);
void drawNormalText(const Common::String text, FontType font, byte fontHeight, int16 x, int16 y, Color color);
void drawBigText(const Common::String text, FontType font, byte fontHeight, int16 x, int16 y, Color color); // Very similar to drawText. TODO: Try to unify the two.
void drawScrollText(const Common::String text, FontType font, byte fontHeight, int16 x, int16 y, Color color);
void drawDigit(int index, int x, int y);
void drawDirection(int index, int x, int y);

58
engines/avalanche/help.cpp
View File

@ -43,12 +43,64 @@ void Help::plotButton(int8 y, byte which) {
}
void Help::getMe(byte which) {
_highlightWas = 177; // Forget where the highlight was.
Common::File file;
if (!file.open("help.avd"))
error("AVALANCHE: Help: File not found: help.avd");
file.seek(which * 2);
uint16 offset = file.readUint16LE();
file.seek(offset);
Common::String title = getLine(file);
_vm->_graphics->drawFilledRectangle(Common::Rect(0, 0, 640, 200), kColorBlue);
_vm->_graphics->drawFilledRectangle(Common::Rect(8, 40, 450, 200), kColorWhite);
byte index = file.readByte();
plotButton(-177, index);
// Plot the title:
_vm->_graphics->drawNormalText(title, _vm->_font, 8, 629 - 8 * title.size(), 26, kColorBlack);
_vm->_graphics->drawNormalText(title, _vm->_font, 8, 630 - 8 * title.size(), 25, kColorCyan);
_vm->_graphics->drawBigText("help!", _vm->_font, 8, 549, 1, kColorBlack);
_vm->_graphics->drawBigText("help!", _vm->_font, 8, 550, 0, kColorCyan);
byte y = 0;
do {
Common::String line = getLine(file);
if (!line.empty()) {
if (line.compareTo(Common::String('!')) == 0) // End of the help text is signalled with a '!'.
break;
if (line[0] == '\\') {
line.deleteChar(0);
_vm->_graphics->drawNormalText(line, _vm->_font, 8, 16, 41 + y * 10, kColorRed);
}
else
_vm->_graphics->drawNormalText(line, _vm->_font, 8, 16, 41 + y * 10, kColorBlack);
}
y++;
} while (true);
warning("STUB: Help::getMe()");
_vm->_graphics->refreshScreen();
file.close();
}
Common::String Help::getLine() {
warning("STUB: Help::getLine()");
return "STUB: Help::getLine()";
Common::String Help::getLine(Common::File &file) {
Common::String line;
byte length = file.readByte();
for (int i = 0; i < length; i++) {
char c = file.readByte();
line += (c ^ 177);
}
return line;
}
byte Help::checkMouse() {

2
engines/avalanche/help.h
View File

@ -51,7 +51,7 @@ private:
void plotButton(int8 y, byte which);
void getMe(byte which);
Common::String getLine(); // It was a nested function in getMe().
Common::String getLine(Common::File &file); // It was a nested function in getMe().
byte checkMouse(); // Returns clicked-on button, or 0 if none.
void continueHelp();
};