scummvm/engines/kyra/text.cpp

344 lines
7.8 KiB
C++

/* 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.
*
* $URL$
* $Id$
*
*/
#include "kyra/kyra_v1.h"
#include "kyra/screen.h"
#include "kyra/text.h"
#include "common/system.h"
#include "common/endian.h"
namespace Kyra {
TextDisplayer::TextDisplayer(KyraEngine_v1 *vm, Screen *screen) {
_screen = screen;
_vm = vm;
_talkCoords.y = 0x88;
_talkCoords.x = 0;
_talkCoords.w = 0;
_talkMessageY = 0xC;
_talkMessageH = 0;
_talkMessagePrinted = false;
}
void TextDisplayer::setTalkCoords(uint16 y) {
_talkCoords.y = y;
}
int TextDisplayer::getCenterStringX(const char *str, int x1, int x2) {
_screen->_charWidth = -2;
Screen::FontId curFont = _screen->setFont(Screen::FID_8_FNT);
int strWidth = _screen->getTextWidth(str);
_screen->setFont(curFont);
_screen->_charWidth = 0;
int w = x2 - x1 + 1;
return x1 + (w - strWidth) / 2;
}
int TextDisplayer::getCharLength(const char *str, int len) {
int charsCount = 0;
if (*str) {
_screen->_charWidth = -2;
Screen::FontId curFont = _screen->setFont(Screen::FID_8_FNT);
int i = 0;
while (i <= len && *str) {
uint c = *str++;
c &= 0xFF;
if (c >= 0x7F && _vm->gameFlags().lang == Common::JA_JPN) {
c = READ_LE_UINT16(str - 1);
++str;
}
i += _screen->getCharWidth(c);
++charsCount;
}
_screen->setFont(curFont);
_screen->_charWidth = 0;
}
return charsCount;
}
int TextDisplayer::dropCRIntoString(char *str, int offs) {
int pos = 0;
str += offs;
while (*str) {
if (*str == ' ') {
*str = '\r';
return pos;
}
++str;
++pos;
}
return 0;
}
char *TextDisplayer::preprocessString(const char *str) {
if (str != _talkBuffer) {
assert(strlen(str) < sizeof(_talkBuffer) - 1);
strcpy(_talkBuffer, str);
}
char *p = _talkBuffer;
while (*p) {
if (*p == '\r') {
return _talkBuffer;
}
++p;
}
p = _talkBuffer;
Screen::FontId curFont = _screen->setFont(Screen::FID_8_FNT);
_screen->_charWidth = -2;
int textWidth = _screen->getTextWidth(p);
_screen->_charWidth = 0;
if (textWidth > 176) {
if (textWidth > 352) {
int count = getCharLength(p, textWidth / 3);
int offs = dropCRIntoString(p, count);
p += count + offs;
_screen->_charWidth = -2;
textWidth = _screen->getTextWidth(p);
_screen->_charWidth = 0;
count = getCharLength(p, textWidth / 2);
dropCRIntoString(p, count);
} else {
int count = getCharLength(p, textWidth / 2);
dropCRIntoString(p, count);
}
}
_screen->setFont(curFont);
return _talkBuffer;
}
int TextDisplayer::buildMessageSubstrings(const char *str) {
int currentLine = 0;
int pos = 0;
while (*str) {
if (*str == '\r') {
assert(currentLine < TALK_SUBSTRING_NUM);
_talkSubstrings[currentLine * TALK_SUBSTRING_LEN + pos] = '\0';
++currentLine;
pos = 0;
} else {
_talkSubstrings[currentLine * TALK_SUBSTRING_LEN + pos] = *str;
++pos;
if (pos >= TALK_SUBSTRING_LEN - 2)
pos = TALK_SUBSTRING_LEN - 2;
}
++str;
}
_talkSubstrings[currentLine * TALK_SUBSTRING_LEN + pos] = '\0';
return currentLine + 1;
}
int TextDisplayer::getWidestLineWidth(int linesCount) {
int maxWidth = 0;
Screen::FontId curFont = _screen->setFont(Screen::FID_8_FNT);
_screen->_charWidth = -2;
for (int l = 0; l < linesCount; ++l) {
int w = _screen->getTextWidth(&_talkSubstrings[l * TALK_SUBSTRING_LEN]);
if (maxWidth < w) {
maxWidth = w;
}
}
_screen->setFont(curFont);
_screen->_charWidth = 0;
return maxWidth;
}
void TextDisplayer::calcWidestLineBounds(int &x1, int &x2, int w, int cx) {
x1 = cx - w / 2;
if (x1 + w >= Screen::SCREEN_W - 12) {
x1 = Screen::SCREEN_W - 12 - w - 1;
} else if (x1 < 12) {
x1 = 12;
}
x2 = x1 + w + 1;
}
void TextDisplayer::restoreTalkTextMessageBkgd(int srcPage, int dstPage) {
if (_talkMessagePrinted) {
_talkMessagePrinted = false;
_screen->copyRegion(_talkCoords.x, _talkCoords.y, _talkCoords.x, _talkMessageY, _talkCoords.w, _talkMessageH, srcPage, dstPage, Screen::CR_NO_P_CHECK);
}
}
void TextDisplayer::printTalkTextMessage(const char *text, int x, int y, uint8 color, int srcPage, int dstPage) {
char *str = preprocessString(text);
int lineCount = buildMessageSubstrings(str);
int top = y - lineCount * 10;
if (top < 0) {
top = 0;
}
_talkMessageY = top;
_talkMessageH = lineCount * 10;
int w = getWidestLineWidth(lineCount);
int x1, x2;
calcWidestLineBounds(x1, x2, w, x);
_talkCoords.x = x1;
_talkCoords.w = w + 2;
_screen->copyRegion(_talkCoords.x, _talkMessageY, _talkCoords.x, _talkCoords.y, _talkCoords.w, _talkMessageH, srcPage, dstPage, Screen::CR_NO_P_CHECK);
int curPage = _screen->_curPage;
_screen->_curPage = srcPage;
if (_vm->gameFlags().platform == Common::kPlatformAmiga)
setTextColor(color);
for (int i = 0; i < lineCount; ++i) {
top = i * 10 + _talkMessageY;
char *msg = &_talkSubstrings[i * TALK_SUBSTRING_LEN];
int left = getCenterStringX(msg, x1, x2);
printText(msg, left, top, color, 0xC, 0);
}
_screen->_curPage = curPage;
_talkMessagePrinted = true;
}
void TextDisplayer::printText(const char *str, int x, int y, uint8 c0, uint8 c1, uint8 c2, Screen::FontId font) {
uint8 colorMap[] = { 0, 15, 12, 12 };
colorMap[3] = c1;
_screen->setTextColor(colorMap, 0, 3);
Screen::FontId curFont = _screen->setFont(font);
_screen->_charWidth = -2;
_screen->printText(str, x, y, c0, c2);
_screen->_charWidth = 0;
_screen->setFont(curFont);
}
void TextDisplayer::printCharacterText(const char *text, int8 charNum, int charX) {
int top, left, x1, x2, w, x;
char *msg;
text = preprocessString(text);
int lineCount = buildMessageSubstrings(text);
w = getWidestLineWidth(lineCount);
x = charX;
calcWidestLineBounds(x1, x2, w, x);
uint8 color = 0;
if (_vm->gameFlags().platform == Common::kPlatformAmiga) {
const uint8 colorTable[] = { 0x1F, 0x1B, 0xC9, 0x80, 0x1E, 0x81, 0x11, 0xD8, 0x55, 0x3A, 0x3A };
color = colorTable[charNum];
setTextColor(color);
} else {
const uint8 colorTable[] = { 0x0F, 0x09, 0xC9, 0x80, 0x05, 0x81, 0x0E, 0xD8, 0x55, 0x3A, 0x3A };
color = colorTable[charNum];
}
for (int i = 0; i < lineCount; ++i) {
top = i * 10 + _talkMessageY;
msg = &_talkSubstrings[i * TALK_SUBSTRING_LEN];
left = getCenterStringX(msg, x1, x2);
printText(msg, left, top, color, 0xC, 0);
}
}
void TextDisplayer::setTextColor(uint8 color) {
byte r, g, b;
switch (color) {
case 4:
// 0x09E
r = 0;
g = 37;
b = 58;
break;
case 5:
// 0xFF5
r = 63;
g = 63;
b = 21;
break;
case 27:
// 0x5FF
r = 21;
g = 63;
b = 63;
break;
case 34:
// 0x8E5
r = 33;
g = 58;
b = 21;
break;
case 58:
// 0x9FB
r = 37;
g = 63;
b = 46;
break;
case 85:
// 0x7CF
r = 29;
g = 50;
b = 63;
break;
case 114:
case 117:
// 0xFAF
r = 63;
g = 42;
b = 63;
break;
case 128:
case 129:
// 0xFCC
r = 63;
g = 50;
b = 50;
break;
case 201:
// 0xFD8
r = 63;
g = 54;
b = 33;
break;
case 216:
// 0xFC6
r = 63;
g = 50;
b = 25;
break;
default:
// 0xEEE
r = 58;
g = 58;
b = 58;
}
_screen->setPaletteIndex(0x10, r, g, b);
}
} // end of namespace Kyra