scummvm/scumm/verbs.cpp

318 lines
7.1 KiB
C++

/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001/2002 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include "stdafx.h"
#include "scumm.h"
#include "object.h"
#include "resource.h"
void Scumm::redrawVerbs()
{
int i;
for (i = 0; i < _maxVerbs; i++)
drawVerb(i, 0);
verbMouseOver(0);
}
void Scumm::checkExecVerbs()
{
int i, over;
VerbSlot *vs;
if (_userPut <= 0 || _mouseButStat == 0)
return;
if (_mouseButStat < MBS_MAX_KEY) {
/* Check keypresses */
vs = &_verbs[1];
for (i = 1; i < _maxVerbs; i++, vs++) {
if (vs->verbid && vs->saveid == 0 && vs->curmode == 1) {
if (_mouseButStat == vs->key) {
runInputScript(1, vs->verbid, 1);
return;
}
}
}
runInputScript(4, _mouseButStat, 1);
} else if (_mouseButStat & MBS_MOUSE_MASK) {
byte code = _mouseButStat & MBS_LEFT_CLICK ? 1 : 2;
if (mouse.y >= virtscr[0].topline && mouse.y < virtscr[0].topline + virtscr[0].height) {
over = checkMouseOver(mouse.x, mouse.y);
if (over != 0) {
runInputScript(1, _verbs[over].verbid, code);
return;
}
runInputScript(2, 0, code);
} else {
over = checkMouseOver(mouse.x, mouse.y);
// FIXME For the future: Indy3 and under inv scrolling
/*
if (over >= 31 && over <= 36)
over += _inventoryOffset;
*/
runInputScript(1, over != 0 ? _verbs[over].verbid : 0, code);
}
}
}
void Scumm::verbMouseOver(int verb)
{
if (_verbMouseOver == verb)
return;
if (_verbs[_verbMouseOver].type != 1) {
drawVerb(_verbMouseOver, 0);
_verbMouseOver = verb;
}
if (_verbs[verb].type != 1 && _verbs[verb].hicolor) {
drawVerb(verb, 1);
_verbMouseOver = verb;
}
}
int Scumm::checkMouseOver(int x, int y)
{
VerbSlot *vs;
int i = _maxVerbs - 1;
vs = &_verbs[i];
do {
if (vs->curmode != 1 || !vs->verbid || vs->saveid || y < vs->y || y >= vs->bottom)
continue;
if (vs->center) {
if (x < -(vs->right - vs->x - vs->x) || x >= vs->right)
continue;
} else {
if (x < vs->x || x >= vs->right)
continue;
}
return i;
} while (--vs, --i);
return 0;
}
void Scumm::drawVerb(int vrb, int mode)
{
VerbSlot *vs;
byte tmp;
if (!vrb)
return;
vs = &_verbs[vrb];
if (!vs->saveid && vs->curmode && vs->verbid) {
if (vs->type == 1) {
drawVerbBitmap(vrb, vs->x, vs->y);
return;
}
restoreVerbBG(vrb);
_string[4].charset = vs->charset_nr;
_string[4].xpos = vs->x;
_string[4].ypos = vs->y;
_string[4].right = 319;
_string[4].center = vs->center;
if (vs->curmode == 2)
_string[4].color = vs->dimcolor;
else if (mode && vs->hicolor)
_string[4].color = vs->hicolor;
else
_string[4].color = vs->color;
// FIXME For the future: Indy3 and under inv scrolling
/*
if (vrb >= 31 && vrb <= 36)
vrb += _inventoryOffset;
*/
_messagePtr = getResourceAddress(rtVerb, vrb);
if (!_messagePtr)
return;
assert(_messagePtr);
tmp = charset._center;
charset._center = 0;
drawString(4);
charset._center = tmp;
vs->right = charset._strRight;
vs->bottom = charset._strBottom;
vs->oldleft = charset._strLeft;
vs->oldright = charset._strRight;
vs->oldtop = charset._strTop;
vs->oldbottom = charset._strBottom;
charset._strLeft = charset._strRight;
} else {
restoreVerbBG(vrb);
}
}
void Scumm::restoreVerbBG(int verb)
{
VerbSlot *vs;
vs = &_verbs[verb];
if (vs->oldleft != -1) {
_bkColor = vs->bkcolor;
restoreBG(vs->oldleft, vs->oldtop, vs->oldright, vs->oldbottom);
vs->oldleft = -1;
}
}
void Scumm::drawVerbBitmap(int vrb, int x, int y)
{
VirtScreen *vs;
VerbSlot *vst;
byte twobufs, *imptr;
int ydiff, xstrip;
int imgw, imgh;
int i, tmp;
byte *obim;
ImageHeader *imhd;
uint32 size;
if ((vs = findVirtScreen(y)) == NULL)
return;
_lastXstart = virtscr[0].xstart;
gdi.disableZBuffer();
twobufs = vs->alloctwobuffers;
vs->alloctwobuffers = 0;
xstrip = x >> 3;
ydiff = y - vs->topline;
obim = getResourceAddress(rtVerb, vrb);
if (_features & GF_SMALL_HEADER) {
int obj;
obj = READ_LE_UINT16(obim + 6);
size = READ_LE_UINT32(obim);
imgw = (*(obim + size + 11));
imgh = (*(obim + size + 17)) >> 3;
imptr = (obim + 8);
} else {
imhd = (ImageHeader *)findResourceData(MKID('IMHD'), obim);
if (_features & GF_AFTER_V7) {
imgw = READ_LE_UINT16(&imhd->v7.width) >> 3;
imgh = READ_LE_UINT16(&imhd->v7.height) >> 3;
} else {
imgw = READ_LE_UINT16(&imhd->old.width) >> 3;
imgh = READ_LE_UINT16(&imhd->old.height) >> 3;
}
imptr = findResource(MKID('IM01'), obim);
if (!imptr)
error("No image for verb %d", vrb);
}
for (i = 0; i < imgw; i++) {
tmp = xstrip + i;
if ((uint) tmp < 40)
gdi.drawBitmap(imptr, vs, tmp, ydiff, imgh << 3, i, 1, true);
}
vst = &_verbs[vrb];
vst->right = vst->x + imgw * 8 - 1;
vst->bottom = vst->y + imgh * 8 - 1;
vst->oldleft = vst->x;
vst->oldright = vst->right;
vst->oldtop = vst->y;
vst->oldbottom = vst->bottom;
gdi.enableZBuffer();
vs->alloctwobuffers = twobufs;
}
int Scumm::getVerbSlot(int id, int mode)
{
int i;
for (i = 1; i < _maxVerbs; i++) {
if (_verbs[i].verbid == id && _verbs[i].saveid == mode) {
return i;
}
}
return 0;
}
void Scumm::killVerb(int slot)
{
VerbSlot *vs;
if (slot == 0)
return;
vs = &_verbs[slot];
vs->verbid = 0;
vs->curmode = 0;
nukeResource(rtVerb, slot);
if (vs->saveid == 0) {
drawVerb(slot, 0);
verbMouseOver(0);
}
vs->saveid = 0;
}
void Scumm::setVerbObject(uint room, uint object, uint verb)
{
byte *obimptr;
byte *obcdptr;
uint32 size, size2;
FindObjectInRoom foir;
int i;
if (whereIsObject(object) == WIO_FLOBJECT)
error("Can't grab verb image from flobject");
if (_features & GF_SMALL_HEADER) {
for (i = _numObjectsInRoom; i > 0; i--) {
if (_objs[i].obj_nr == object) {
findObjectInRoom(&foir, foImageHeader, object, room);
size = READ_LE_UINT32(foir.obim);
obcdptr = getResourceAddress(rtRoom, room) + getOBCDOffs(object);
size2 = READ_LE_UINT32(obcdptr);
createResource(rtVerb, verb, size + size2);
obimptr = getResourceAddress(rtRoom, room) - foir.roomptr + foir.obim;
obcdptr = getResourceAddress(rtRoom, room) + getOBCDOffs(object);
memcpy(getResourceAddress(rtVerb, verb), obimptr, size);
memcpy(getResourceAddress(rtVerb, verb) + size, obcdptr, size2);
}
}
} else {
findObjectInRoom(&foir, foImageHeader, object, room);
size = READ_BE_UINT32_UNALIGNED(foir.obim + 4);
createResource(rtVerb, verb, size);
obimptr = getResourceAddress(rtRoom, room) - foir.roomptr + foir.obim;
memcpy(getResourceAddress(rtVerb, verb), obimptr, size);
}
}