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https://github.com/libretro/scummvm.git
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132 lines
4.2 KiB
C++
132 lines
4.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "common/util.h"
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#include "common/stack.h"
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#include "graphics/primitives.h"
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#include "sci/sci.h"
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#include "sci/engine/state.h"
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#include "sci/engine/selector.h"
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#include "sci/graphics/compare.h"
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#include "sci/graphics/animate.h"
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#include "sci/graphics/cache.h"
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#include "sci/graphics/screen.h"
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#include "sci/graphics/view.h"
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namespace Sci {
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GfxCompare::GfxCompare(SegManager *segMan, Kernel *kernel, GfxCache *cache, GfxScreen *screen)
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: _segMan(segMan), _kernel(kernel), _cache(cache), _screen(screen) {
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}
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GfxCompare::~GfxCompare() {
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}
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uint16 GfxCompare::onControl(uint16 screenMask, Common::Rect rect) {
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int16 x, y;
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uint16 result = 0;
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if (rect.isEmpty())
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return 0;
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if (screenMask & SCI_SCREEN_MASK_PRIORITY) {
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for (y = rect.top; y < rect.bottom; y++) {
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for (x = rect.left; x < rect.right; x++) {
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result |= 1 << _screen->getPriority(x, y);
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}
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}
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} else {
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for (y = rect.top; y < rect.bottom; y++) {
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for (x = rect.left; x < rect.right; x++) {
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result |= 1 << _screen->getControl(x, y);
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}
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}
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}
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return result;
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}
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static inline int sign_extend_byte(int value) {
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if (value & 0x80)
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return value - 256;
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else
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return value;
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}
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bool GfxCompare::CanBeHereCheckRectList(reg_t checkObject, Common::Rect checkRect, List *list) {
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reg_t curAddress = list->first;
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Node *curNode = _segMan->lookupNode(curAddress);
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reg_t curObject;
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uint16 signal;
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Common::Rect curRect;
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while (curNode) {
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curObject = curNode->value;
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if (curObject != checkObject) {
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signal = GET_SEL32V(_segMan, curObject, signal);
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if ((signal & (kSignalIgnoreActor | kSignalRemoveView | kSignalNoUpdate)) == 0) {
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curRect.left = GET_SEL32V(_segMan, curObject, brLeft);
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curRect.top = GET_SEL32V(_segMan, curObject, brTop);
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curRect.right = GET_SEL32V(_segMan, curObject, brRight);
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curRect.bottom = GET_SEL32V(_segMan, curObject, brBottom);
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// Check if curRect is within checkRect
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if (curRect.right > checkRect.left && curRect.left < checkRect.right && curRect.bottom > checkRect.top && curRect.top < checkRect.bottom) {
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return false;
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}
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}
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}
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curAddress = curNode->succ;
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curNode = _segMan->lookupNode(curAddress);
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}
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return true;
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}
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void GfxCompare::SetNowSeen(reg_t objectReference) {
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View *view = NULL;
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Common::Rect celRect(0, 0);
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GuiResourceId viewId = (GuiResourceId)GET_SEL32V(_segMan, objectReference, view);
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int16 loopNo = sign_extend_byte((int16)GET_SEL32V(_segMan, objectReference, loop));
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int16 celNo = sign_extend_byte((int16)GET_SEL32V(_segMan, objectReference, cel));
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int16 x = (int16)GET_SEL32V(_segMan, objectReference, x);
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int16 y = (int16)GET_SEL32V(_segMan, objectReference, y);
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int16 z = 0;
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if (_kernel->_selectorCache.z > -1)
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z = (int16)GET_SEL32V(_segMan, objectReference, z);
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// now get cel rectangle
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view = _cache->getView(viewId);
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view->getCelRect(loopNo, celNo, x, y, z, &celRect);
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// TODO: sometimes loop is negative. Check what it means
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if (lookup_selector(_segMan, objectReference, _kernel->_selectorCache.nsTop, NULL, NULL) == kSelectorVariable) {
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PUT_SEL32V(_segMan, objectReference, nsLeft, celRect.left);
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PUT_SEL32V(_segMan, objectReference, nsRight, celRect.right);
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PUT_SEL32V(_segMan, objectReference, nsTop, celRect.top);
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PUT_SEL32V(_segMan, objectReference, nsBottom, celRect.bottom);
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}
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}
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} // End of namespace Sci
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