mirror of
https://github.com/libretro/scummvm.git
synced 2024-11-30 12:50:51 +00:00
7696081c54
in the object flags code cleanup. Flags used: indent *.cpp -br -bap -nbc -lp -ce -cdw -brs -nbad -nbc -npsl -nip -ts2 -ncs -nbs -npcs -nbap -Tbyte -Tuint32 -Tuint8 -Tuint16 -TArrayHeader -TMemBlkHeader -TVerbSlot -TObjectData -Tvoid -TImageHeader -TRoomHeader -TCodeHeader -TResHdr -TBompHeader -TMidiChannelAdl -TGui -TScumm -TSoundEngine -TPart -TPlayer svn-id: r3908
1022 lines
21 KiB
C++
1022 lines
21 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 "math.h"
|
|
|
|
byte Scumm::getMaskFromBox(int box)
|
|
{
|
|
Box *ptr = getBoxBaseAddr(box);
|
|
if (!ptr)
|
|
return 0;
|
|
return ptr->mask;
|
|
}
|
|
|
|
byte Scumm::getBoxFlags(int box)
|
|
{
|
|
Box *ptr = getBoxBaseAddr(box);
|
|
if (!ptr)
|
|
return 0;
|
|
return ptr->flags;
|
|
}
|
|
|
|
int Scumm::getBoxScale(int box)
|
|
{
|
|
if (_features & GF_NO_SCALLING)
|
|
return (255);
|
|
Box *ptr = getBoxBaseAddr(box);
|
|
if (!box)
|
|
return 255;
|
|
return FROM_LE_16(ptr->scale);
|
|
}
|
|
|
|
byte Scumm::getNumBoxes()
|
|
{
|
|
byte *ptr = getResourceAddress(rtMatrix, 2);
|
|
if (!ptr)
|
|
return 0;
|
|
return ptr[0];
|
|
}
|
|
|
|
Box *Scumm::getBoxBaseAddr(int box)
|
|
{
|
|
byte *ptr = getResourceAddress(rtMatrix, 2);
|
|
if (!ptr)
|
|
return NULL;
|
|
checkRange(ptr[0] - 1, 0, box, "Illegal box %d");
|
|
if (_features & GF_SMALL_HEADER) {
|
|
if (_features & GF_OLD256)
|
|
return (Box *) (ptr + box * (SIZEOF_BOX - 2) + 1);
|
|
else
|
|
return (Box *) (ptr + box * SIZEOF_BOX + 1);
|
|
} else
|
|
return (Box *) (ptr + box * SIZEOF_BOX + 2);
|
|
}
|
|
|
|
bool Scumm::checkXYInBoxBounds(int b, int x, int y)
|
|
{
|
|
BoxCoords box;
|
|
|
|
if (b == 0 && (!(_features & GF_SMALL_HEADER)))
|
|
return 0;
|
|
|
|
getBoxCoordinates(b, &box);
|
|
|
|
if (x < box.ul.x && x < box.ur.x && x < box.ll.x && x < box.lr.x)
|
|
return 0;
|
|
|
|
if (x > box.ul.x && x > box.ur.x && x > box.ll.x && x > box.lr.x)
|
|
return 0;
|
|
|
|
if (y < box.ul.y && y < box.ur.y && y < box.ll.y && y < box.lr.y)
|
|
return 0;
|
|
|
|
if (y > box.ul.y && y > box.ur.y && y > box.ll.y && y > box.lr.y)
|
|
return 0;
|
|
|
|
if (box.ul.x == box.ur.x &&
|
|
box.ul.y == box.ur.y &&
|
|
box.ll.x == box.lr.x &&
|
|
box.ll.y == box.lr.y ||
|
|
box.ul.x == box.lr.x &&
|
|
box.ul.y == box.lr.y && box.ur.x == box.ll.x && box.ur.y == box.ll.y) {
|
|
|
|
ScummPoint pt;
|
|
pt = closestPtOnLine(box.ul.x, box.ul.y, box.ll.x, box.ll.y, x, y);
|
|
if (distanceFromPt(x, y, pt.x, pt.y) <= 4)
|
|
return 1;
|
|
}
|
|
|
|
if (!getSideOfLine(box.ul.x, box.ul.y, box.ur.x, box.ur.y, x, y, b))
|
|
return 0;
|
|
|
|
if (!getSideOfLine(box.ur.x, box.ur.y, box.ll.x, box.ll.y, x, y, b))
|
|
return 0;
|
|
|
|
if (!getSideOfLine(box.ll.x, box.ll.y, box.lr.x, box.lr.y, x, y, b))
|
|
return 0;
|
|
|
|
if (!getSideOfLine(box.lr.x, box.lr.y, box.ul.x, box.ul.y, x, y, b))
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
void Scumm::getBoxCoordinates(int boxnum, BoxCoords * box)
|
|
{
|
|
Box *bp = getBoxBaseAddr(boxnum);
|
|
|
|
box->ul.x = (int16) FROM_LE_16(bp->ulx);
|
|
box->ul.y = (int16) FROM_LE_16(bp->uly);
|
|
box->ur.x = (int16) FROM_LE_16(bp->urx);
|
|
box->ur.y = (int16) FROM_LE_16(bp->ury);
|
|
|
|
if (_features & GF_OLD256) {
|
|
box->ll.x = (int16) FROM_LE_16(bp->lrx);
|
|
box->ll.y = (int16) FROM_LE_16(bp->lry);
|
|
box->lr.x = (int16) FROM_LE_16(bp->llx);
|
|
box->lr.y = (int16) FROM_LE_16(bp->lly);
|
|
} else {
|
|
box->ll.x = (int16) FROM_LE_16(bp->llx);
|
|
box->ll.y = (int16) FROM_LE_16(bp->lly);
|
|
box->lr.x = (int16) FROM_LE_16(bp->lrx);
|
|
box->lr.y = (int16) FROM_LE_16(bp->lry);
|
|
}
|
|
|
|
}
|
|
|
|
uint Scumm::distanceFromPt(int x, int y, int ptx, int pty)
|
|
{
|
|
int diffx, diffy;
|
|
|
|
diffx = abs(ptx - x);
|
|
|
|
if (diffx >= 0x100)
|
|
return 0xFFFF;
|
|
|
|
diffy = abs(pty - y);
|
|
|
|
if (diffy >= 0x100)
|
|
return 0xFFFF;
|
|
diffx *= diffx;
|
|
diffy *= diffy;
|
|
return diffx + diffy;
|
|
}
|
|
|
|
bool Scumm::getSideOfLine(int x1, int y1, int x2, int y2, int x, int y,
|
|
int box)
|
|
{
|
|
return (x - x1) * (y2 - y1) <= (y - y1) * (x2 - x1);
|
|
}
|
|
|
|
ScummPoint Scumm::closestPtOnLine(int ulx, int uly, int llx, int lly, int x,
|
|
int y)
|
|
{
|
|
int lydiff, lxdiff;
|
|
int32 dist, a, b, c;
|
|
int x2, y2;
|
|
ScummPoint pt;
|
|
|
|
if (llx == ulx) {
|
|
x2 = ulx;
|
|
y2 = y;
|
|
} else if (lly == uly) {
|
|
x2 = x;
|
|
y2 = uly;
|
|
} else {
|
|
lydiff = lly - uly;
|
|
|
|
lxdiff = llx - ulx;
|
|
|
|
if (abs(lxdiff) > abs(lydiff)) {
|
|
dist = lxdiff * lxdiff + lydiff * lydiff;
|
|
|
|
a = ulx * lydiff / lxdiff;
|
|
b = x * lxdiff / lydiff;
|
|
|
|
c = (a + b - uly + y) * lydiff * lxdiff / dist;
|
|
|
|
x2 = c;
|
|
y2 = c * lydiff / lxdiff - a + uly;
|
|
} else {
|
|
dist = lydiff * lydiff + lxdiff * lxdiff;
|
|
|
|
a = uly * lxdiff / lydiff;
|
|
b = y * lydiff / lxdiff;
|
|
|
|
c = (a + b - ulx + x) * lydiff * lxdiff / dist;
|
|
|
|
y2 = c;
|
|
x2 = c * lxdiff / lydiff - a + ulx;
|
|
}
|
|
}
|
|
|
|
lxdiff = llx - ulx;
|
|
lydiff = lly - uly;
|
|
|
|
if (abs(lydiff) < abs(lxdiff)) {
|
|
if (lxdiff > 0) {
|
|
if (x2 < ulx) {
|
|
type1:;
|
|
x2 = ulx;
|
|
y2 = uly;
|
|
} else if (x2 > llx) {
|
|
type2:;
|
|
x2 = llx;
|
|
y2 = lly;
|
|
}
|
|
} else {
|
|
if (x2 > ulx)
|
|
goto type1;
|
|
if (x2 < llx)
|
|
goto type2;
|
|
}
|
|
} else {
|
|
if (lydiff > 0) {
|
|
if (y2 < uly)
|
|
goto type1;
|
|
if (y2 > lly)
|
|
goto type2;
|
|
} else {
|
|
if (y2 > uly)
|
|
goto type1;
|
|
if (y2 < lly)
|
|
goto type2;
|
|
}
|
|
}
|
|
|
|
pt.x = x2;
|
|
pt.y = y2;
|
|
return pt;
|
|
}
|
|
|
|
bool Scumm::inBoxQuickReject(int b, int x, int y, int threshold)
|
|
{
|
|
int t;
|
|
BoxCoords box;
|
|
|
|
getBoxCoordinates(b, &box);
|
|
|
|
if (threshold == 0)
|
|
return 1;
|
|
|
|
t = x - threshold;
|
|
if (t > box.ul.x && t > box.ur.x && t > box.ll.x && t > box.lr.x)
|
|
return 0;
|
|
|
|
t = x + threshold;
|
|
if (t < box.ul.x && t < box.ur.x && t < box.ll.x && t < box.lr.x)
|
|
return 0;
|
|
|
|
t = y - threshold;
|
|
if (t > box.ul.y && t > box.ur.y && t > box.ll.y && t > box.lr.y)
|
|
return 0;
|
|
|
|
t = y + threshold;
|
|
if (t < box.ul.y && t < box.ur.y && t < box.ll.y && t < box.lr.y)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
AdjustBoxResult Scumm::getClosestPtOnBox(int b, int x, int y)
|
|
{
|
|
ScummPoint pt;
|
|
AdjustBoxResult best;
|
|
uint dist;
|
|
uint bestdist = (uint) 0xFFFF;
|
|
BoxCoords box;
|
|
|
|
getBoxCoordinates(b, &box);
|
|
|
|
pt = closestPtOnLine(box.ul.x, box.ul.y, box.ur.x, box.ur.y, x, y);
|
|
dist = distanceFromPt(x, y, pt.x, pt.y);
|
|
if (dist < bestdist) {
|
|
bestdist = dist;
|
|
best.x = pt.x;
|
|
best.y = pt.y;
|
|
}
|
|
|
|
pt = closestPtOnLine(box.ur.x, box.ur.y, box.ll.x, box.ll.y, x, y);
|
|
dist = distanceFromPt(x, y, pt.x, pt.y);
|
|
if (dist < bestdist) {
|
|
bestdist = dist;
|
|
best.x = pt.x;
|
|
best.y = pt.y;
|
|
}
|
|
|
|
pt = closestPtOnLine(box.ll.x, box.ll.y, box.lr.x, box.lr.y, x, y);
|
|
dist = distanceFromPt(x, y, pt.x, pt.y);
|
|
if (dist < bestdist) {
|
|
bestdist = dist;
|
|
best.x = pt.x;
|
|
best.y = pt.y;
|
|
}
|
|
|
|
pt = closestPtOnLine(box.lr.x, box.lr.y, box.ul.x, box.ul.y, x, y);
|
|
dist = distanceFromPt(x, y, pt.x, pt.y);
|
|
if (dist < bestdist) {
|
|
bestdist = dist;
|
|
best.x = pt.x;
|
|
best.y = pt.y;
|
|
}
|
|
|
|
best.dist = bestdist;
|
|
return best;
|
|
}
|
|
|
|
byte *Scumm::getBoxMatrixBaseAddr()
|
|
{
|
|
byte *ptr = getResourceAddress(rtMatrix, 1);
|
|
if (*ptr == 0xFF)
|
|
ptr++;
|
|
return ptr;
|
|
}
|
|
|
|
int Scumm::getPathToDestBox(byte from, byte to)
|
|
{
|
|
byte *boxm;
|
|
byte i;
|
|
|
|
if (from == to)
|
|
return to;
|
|
|
|
boxm = getBoxMatrixBaseAddr();
|
|
|
|
i = 0;
|
|
while (i != from) {
|
|
while (*boxm != 0xFF)
|
|
boxm += 3;
|
|
i++;
|
|
boxm++;
|
|
}
|
|
|
|
while (boxm[0] != 0xFF) {
|
|
if (boxm[0] <= to && boxm[1] >= to)
|
|
return boxm[2];
|
|
boxm += 3;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int Scumm::findPathTowards(Actor * a, byte box1nr, byte box2nr, byte box3nr)
|
|
{
|
|
BoxCoords box1;
|
|
BoxCoords box2;
|
|
ScummPoint tmp;
|
|
int i, j;
|
|
int flag;
|
|
int q, pos;
|
|
|
|
getBoxCoordinates(box1nr, &box1);
|
|
getBoxCoordinates(box2nr, &box2);
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
for (j = 0; j < 4; j++) {
|
|
if (box1.ul.x == box1.ur.x &&
|
|
box1.ul.x == box2.ul.x && box1.ul.x == box2.ur.x) {
|
|
flag = 0;
|
|
if (box1.ul.y > box1.ur.y) {
|
|
SWAP(box1.ul.y, box1.ur.y);
|
|
flag |= 1;
|
|
}
|
|
|
|
if (box2.ul.y > box2.ur.y) {
|
|
SWAP(box2.ul.y, box2.ur.y);
|
|
flag |= 2;
|
|
}
|
|
|
|
if (box1.ul.y > box2.ur.y || box2.ul.y > box1.ur.y ||
|
|
(box1.ur.y == box2.ul.y || box2.ur.y == box1.ul.y) &&
|
|
box1.ul.y != box1.ur.y && box2.ul.y != box2.ur.y) {
|
|
if (flag & 1)
|
|
SWAP(box1.ul.y, box1.ur.y);
|
|
if (flag & 2)
|
|
SWAP(box2.ul.y, box2.ur.y);
|
|
} else {
|
|
if (box2nr == box3nr) {
|
|
int diffX = a->walkdata.destx - a->x;
|
|
int diffY = a->walkdata.desty - a->y;
|
|
int boxDiffX = box1.ul.x - a->x;
|
|
|
|
if (diffX != 0) {
|
|
int t;
|
|
|
|
diffY *= boxDiffX;
|
|
t = diffY / diffX;
|
|
if (t == 0 && (diffY <= 0 || diffX <= 0)
|
|
&& (diffY >= 0 || diffX >= 0))
|
|
t = -1;
|
|
pos = a->y + t;
|
|
} else {
|
|
pos = a->y;
|
|
}
|
|
} else {
|
|
pos = a->y;
|
|
}
|
|
|
|
q = pos;
|
|
if (q < box2.ul.y)
|
|
q = box2.ul.y;
|
|
if (q > box2.ur.y)
|
|
q = box2.ur.y;
|
|
if (q < box1.ul.y)
|
|
q = box1.ul.y;
|
|
if (q > box1.ur.y)
|
|
q = box1.ur.y;
|
|
if (q == pos && box2nr == box3nr)
|
|
return 1;
|
|
_foundPathY = q;
|
|
_foundPathX = box1.ul.x;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (box1.ul.y == box1.ur.y &&
|
|
box1.ul.y == box2.ul.y && box1.ul.y == box2.ur.y) {
|
|
flag = 0;
|
|
if (box1.ul.x > box1.ur.x) {
|
|
SWAP(box1.ul.x, box1.ur.x);
|
|
flag |= 1;
|
|
}
|
|
|
|
if (box2.ul.x > box2.ur.x) {
|
|
SWAP(box2.ul.x, box2.ur.x);
|
|
flag |= 2;
|
|
}
|
|
|
|
if (box1.ul.x > box2.ur.x || box2.ul.x > box1.ur.x ||
|
|
(box1.ur.x == box2.ul.x || box2.ur.x == box1.ul.x) &&
|
|
box1.ul.x != box1.ur.x && box2.ul.x != box2.ur.x) {
|
|
if (flag & 1)
|
|
SWAP(box1.ul.x, box1.ur.x);
|
|
if (flag & 2)
|
|
SWAP(box2.ul.x, box2.ur.x);
|
|
} else {
|
|
|
|
if (box2nr == box3nr) {
|
|
int diffX = a->walkdata.destx - a->x;
|
|
int diffY = a->walkdata.desty - a->y;
|
|
int boxDiffY = box1.ul.y - a->y;
|
|
|
|
pos = a->x;
|
|
if (diffY != 0) {
|
|
pos += diffX * boxDiffY / diffY;
|
|
}
|
|
} else {
|
|
pos = a->x;
|
|
}
|
|
|
|
q = pos;
|
|
if (q < box2.ul.x)
|
|
q = box2.ul.x;
|
|
if (q > box2.ur.x)
|
|
q = box2.ur.x;
|
|
if (q < box1.ul.x)
|
|
q = box1.ul.x;
|
|
if (q > box1.ur.x)
|
|
q = box1.ur.x;
|
|
if (q == pos && box2nr == box3nr)
|
|
return 1;
|
|
_foundPathX = q;
|
|
_foundPathY = box1.ul.y;
|
|
return 0;
|
|
}
|
|
}
|
|
tmp = box1.ul;
|
|
box1.ul = box1.ur;
|
|
box1.ur = box1.ll;
|
|
box1.ll = box1.lr;
|
|
box1.lr = tmp;
|
|
}
|
|
tmp = box2.ul;
|
|
box2.ul = box2.ur;
|
|
box2.ur = box2.ll;
|
|
box2.ll = box2.lr;
|
|
box2.lr = tmp;
|
|
}
|
|
return 0;
|
|
}
|
|
void Scumm::setBoxFlags(int box, int val)
|
|
{
|
|
/* FULL_THROTTLE stuff */
|
|
if (val & 0xC000) {
|
|
assert(box >= 0 && box < 65);
|
|
_extraBoxFlags[box] = val;
|
|
} else {
|
|
Box *b = getBoxBaseAddr(box);
|
|
b->flags = val;
|
|
}
|
|
}
|
|
|
|
void Scumm::setBoxScale(int box, int scale)
|
|
{
|
|
Box *b = getBoxBaseAddr(box);
|
|
b->scale = scale;
|
|
}
|
|
|
|
#define BOX_MATRIX_SIZE 2000
|
|
|
|
void Scumm::createBoxMatrix()
|
|
{
|
|
byte *matrix_ptr;
|
|
int num, i, j;
|
|
byte flags;
|
|
int table_1[66], table_2[66];
|
|
int counter, val;
|
|
int code;
|
|
|
|
PathVertex *vtx;
|
|
PathNode *node, *node2 = NULL;
|
|
|
|
_maxBoxVertexHeap = 1000;
|
|
|
|
createResource(rtMatrix, 4, 1000);
|
|
createResource(rtMatrix, 3, 4160); //65 items of something of size 64
|
|
createResource(rtMatrix, 1, BOX_MATRIX_SIZE);
|
|
|
|
matrix_ptr = getResourceAddress(rtMatrix, 1);
|
|
|
|
_boxMatrixPtr4 = getResourceAddress(rtMatrix, 4);
|
|
_boxMatrixPtr1 = getResourceAddress(rtMatrix, 1);
|
|
_boxMatrixPtr3 = getResourceAddress(rtMatrix, 3);
|
|
|
|
_boxPathVertexHeapIndex = _boxMatrixItem = 0;
|
|
|
|
num = getNumBoxes();
|
|
|
|
for (i = 0; i < num; i++) {
|
|
for (j = 0; j < num; j++) {
|
|
if (i == j) {
|
|
_boxMatrixPtr3[i * 64 + j] = 0;
|
|
} else if (areBoxesNeighbours(i, j)) {
|
|
_boxMatrixPtr3[i * 64 + j] = 1;
|
|
} else {
|
|
_boxMatrixPtr3[i * 64 + j] = 250;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (j = 0; j < num; j++) {
|
|
flags = getBoxFlags(j);
|
|
if (flags & 0x80) {
|
|
addToBoxMatrix(0xFF);
|
|
addToBoxMatrix(j);
|
|
addToBoxMatrix(j);
|
|
addToBoxMatrix(j);
|
|
} else {
|
|
vtx = addPathVertex();
|
|
for (i = 0; i < num; i++) {
|
|
flags = getBoxFlags(j);
|
|
if (!(flags & 0x80)) {
|
|
node = unkMatrixProc2(vtx, i);
|
|
if (i == j)
|
|
node2 = node;
|
|
}
|
|
}
|
|
table_1[j] = 0;
|
|
table_2[j] = j;
|
|
vtx = unkMatrixProc1(vtx, node2);
|
|
node = vtx ? vtx->left : NULL;
|
|
|
|
counter = 250;
|
|
while (node) {
|
|
val = _boxMatrixPtr3[j * 64 + node->index];
|
|
table_1[node->index] = val;
|
|
if (val < counter)
|
|
counter = val;
|
|
|
|
if (table_1[node->index] != 250)
|
|
table_2[node->index] = node->index;
|
|
else
|
|
table_2[node->index] = -1;
|
|
|
|
node = node->left;
|
|
}
|
|
|
|
while (vtx) {
|
|
counter = 250;
|
|
node2 = node = vtx->left;
|
|
|
|
while (node) {
|
|
if (table_1[node->index] < counter) {
|
|
counter = table_1[node->index];
|
|
node2 = node;
|
|
}
|
|
node = node->left;
|
|
}
|
|
vtx = unkMatrixProc1(vtx, node2);
|
|
node = vtx ? vtx->left : NULL;
|
|
while (node) {
|
|
code = _boxMatrixPtr3[node2->index * 64 + node->index];
|
|
code += table_1[node2->index];
|
|
if (code < table_1[node->index]) {
|
|
table_1[node->index] = code;
|
|
table_2[node->index] = table_2[node2->index];
|
|
}
|
|
node = node->left;
|
|
}
|
|
}
|
|
|
|
addToBoxMatrix(0xFF);
|
|
for (i = 1; i < num;) {
|
|
if (table_2[i - 1] != -1) {
|
|
addToBoxMatrix(i - 1); /* lo */
|
|
if (table_2[i - 1] != table_2[i]) {
|
|
addToBoxMatrix(i - 1); /* hi */
|
|
addToBoxMatrix(table_2[i - 1]); /* dst */
|
|
} else {
|
|
while (table_2[i - 1] == table_2[i]) {
|
|
if (++i == num)
|
|
break;
|
|
}
|
|
addToBoxMatrix(i - 1); /* hi */
|
|
addToBoxMatrix(table_2[i - 1]); /* dst */
|
|
}
|
|
}
|
|
if (++i == num && table_2[i - 1] != -1) {
|
|
addToBoxMatrix(i - 1); /* lo */
|
|
addToBoxMatrix(i - 1); /* hi */
|
|
addToBoxMatrix(table_2[i - 1]); /* dest */
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
addToBoxMatrix(0xFF);
|
|
nukeResource(rtMatrix, 4);
|
|
nukeResource(rtMatrix, 3);
|
|
}
|
|
|
|
PathVertex *Scumm::unkMatrixProc1(PathVertex * vtx, PathNode * node)
|
|
{
|
|
if (node == NULL || vtx == NULL)
|
|
return NULL;
|
|
|
|
if (!node->right) {
|
|
vtx->left = node->left;
|
|
} else {
|
|
node->right->left = node->left;
|
|
}
|
|
|
|
if (!node->left) {
|
|
vtx->right = node->right;
|
|
} else {
|
|
node->left->right = node->right;
|
|
}
|
|
|
|
if (vtx->left)
|
|
return vtx;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
PathNode *Scumm::unkMatrixProc2(PathVertex * vtx, int i)
|
|
{
|
|
PathNode *node;
|
|
|
|
if (vtx == NULL)
|
|
return NULL;
|
|
|
|
if (!vtx->right) {
|
|
node = (PathNode *) addToBoxVertexHeap(sizeof(PathNode));
|
|
vtx->left = vtx->right = node;
|
|
|
|
node->index = i;
|
|
node->left = 0;
|
|
node->right = 0;
|
|
} else {
|
|
node = (PathNode *) addToBoxVertexHeap(sizeof(PathNode));
|
|
vtx->right->left = node;
|
|
|
|
node->right = vtx->right;
|
|
node->index = i;
|
|
node->left = 0;
|
|
|
|
vtx->right = node;
|
|
}
|
|
|
|
return vtx->right;
|
|
}
|
|
|
|
/* Check if two boxes are neighbours */
|
|
bool Scumm::areBoxesNeighbours(int box1nr, int box2nr)
|
|
{
|
|
int j, k, m, n;
|
|
int tmp_x, tmp_y;
|
|
bool result;
|
|
BoxCoords box;
|
|
BoxCoords box2;
|
|
|
|
if (getBoxFlags(box1nr) & 0x80 || getBoxFlags(box2nr) & 0x80)
|
|
return false;
|
|
|
|
getBoxCoordinates(box1nr, &box2);
|
|
getBoxCoordinates(box2nr, &box);
|
|
|
|
result = false;
|
|
j = 4;
|
|
|
|
do {
|
|
k = 4;
|
|
do {
|
|
if (box2.ur.x == box2.ul.x &&
|
|
box.ul.x == box2.ul.x && box.ur.x == box2.ur.x) {
|
|
n = m = 0;
|
|
if (box2.ur.y < box2.ul.y) {
|
|
n = 1;
|
|
SWAP(box2.ur.y, box2.ul.y);
|
|
}
|
|
if (box.ur.y < box.ul.y) {
|
|
m = 1;
|
|
SWAP(box.ur.y, box.ul.y);
|
|
}
|
|
if (box.ur.y < box2.ul.y ||
|
|
box.ul.y > box2.ur.y ||
|
|
(box.ul.y == box2.ur.y ||
|
|
box.ur.y == box2.ul.y) &&
|
|
box2.ur.y != box2.ul.y && box.ul.y != box.ur.y) {
|
|
if (n) {
|
|
SWAP(box2.ur.y, box2.ul.y);
|
|
}
|
|
if (m) {
|
|
SWAP(box.ur.y, box.ul.y);
|
|
}
|
|
} else {
|
|
if (n) {
|
|
SWAP(box2.ur.y, box2.ul.y);
|
|
}
|
|
if (m) {
|
|
SWAP(box.ur.y, box.ul.y);
|
|
}
|
|
result = true;
|
|
}
|
|
}
|
|
|
|
if (box2.ur.y == box2.ul.y &&
|
|
box.ul.y == box2.ul.y && box.ur.y == box2.ur.y) {
|
|
n = m = 0;
|
|
if (box2.ur.x < box2.ul.x) {
|
|
n = 1;
|
|
SWAP(box2.ur.x, box2.ul.x);
|
|
}
|
|
if (box.ur.x < box.ul.x) {
|
|
m = 1;
|
|
SWAP(box.ur.x, box.ul.x);
|
|
}
|
|
if (box.ur.x < box2.ul.x ||
|
|
box.ul.x > box2.ur.x ||
|
|
(box.ul.x == box2.ur.x ||
|
|
box.ur.x == box2.ul.x) &&
|
|
box2.ur.x != box2.ul.x && box.ul.x != box.ur.x) {
|
|
|
|
if (n) {
|
|
SWAP(box2.ur.x, box2.ul.x);
|
|
}
|
|
if (m) {
|
|
SWAP(box.ur.x, box.ul.x);
|
|
}
|
|
} else {
|
|
if (n) {
|
|
SWAP(box2.ur.x, box2.ul.x);
|
|
}
|
|
if (m) {
|
|
SWAP(box.ur.x, box.ul.x);
|
|
}
|
|
result = true;
|
|
}
|
|
}
|
|
|
|
tmp_x = box2.ul.x;
|
|
tmp_y = box2.ul.y;
|
|
box2.ul.x = box2.ur.x;
|
|
box2.ul.y = box2.ur.y;
|
|
box2.ur.x = box2.ll.x;
|
|
box2.ur.y = box2.ll.y;
|
|
box2.ll.x = box2.lr.x;
|
|
box2.ll.y = box2.lr.y;
|
|
box2.lr.x = tmp_x;
|
|
box2.lr.y = tmp_y;
|
|
} while (--k);
|
|
|
|
tmp_x = box.ul.x;
|
|
tmp_y = box.ul.y;
|
|
box.ul.x = box.ur.x;
|
|
box.ul.y = box.ur.y;
|
|
box.ur.x = box.ll.x;
|
|
box.ur.y = box.ll.y;
|
|
box.ll.x = box.lr.x;
|
|
box.ll.y = box.lr.y;
|
|
box.lr.x = tmp_x;
|
|
box.lr.y = tmp_y;
|
|
} while (--j);
|
|
|
|
return result;
|
|
}
|
|
|
|
void Scumm::addToBoxMatrix(byte b)
|
|
{
|
|
if (++_boxMatrixItem > BOX_MATRIX_SIZE)
|
|
error("Box matrix overflow");
|
|
*_boxMatrixPtr1++ = b;
|
|
}
|
|
|
|
void *Scumm::addToBoxVertexHeap(int size)
|
|
{
|
|
byte *ptr = _boxMatrixPtr4;
|
|
|
|
_boxMatrixPtr4 += size;
|
|
_boxPathVertexHeapIndex += size;
|
|
|
|
if (_boxPathVertexHeapIndex >= _maxBoxVertexHeap)
|
|
error("Box path vertex heap overflow");
|
|
|
|
return ptr;
|
|
}
|
|
|
|
PathVertex *Scumm::addPathVertex()
|
|
{
|
|
_boxMatrixPtr4 = getResourceAddress(rtMatrix, 4);
|
|
_boxPathVertexHeapIndex = 0;
|
|
|
|
return (PathVertex *) addToBoxVertexHeap(sizeof(PathVertex));
|
|
}
|
|
|
|
int Scumm::findPathTowardsOld(Actor * a, byte trap1, byte trap2,
|
|
byte final_trap)
|
|
{
|
|
GetGates(trap1, trap2);
|
|
ScummPoint pt;
|
|
|
|
p[1].x = actor->x;
|
|
p[1].y = actor->y;
|
|
p[2].x = 32000;
|
|
p[3].x = 32000;
|
|
p[4].x = 32000;
|
|
|
|
if (trap2 == final_trap) { /* next = final box? */
|
|
p[4].x = actor->walkdata.destx;
|
|
p[4].y = actor->walkdata.desty;
|
|
|
|
if (getMaskFromBox(trap1) == getMaskFromBox(trap2) || 1) {
|
|
if (CompareSlope(p[1].x, p[1].y, p[4].x, p[4].y, gate1ax, gate1ay) !=
|
|
CompareSlope(p[1].x, p[1].y, p[4].x, p[4].y, gate1bx, gate1by) &&
|
|
CompareSlope(p[1].x, p[1].y, p[4].x, p[4].y, gate2ax, gate2ay) !=
|
|
CompareSlope(p[1].x, p[1].y, p[4].x, p[4].y, gate2bx, gate2by)) {
|
|
return 0; /* same zplane and between both gates? */
|
|
}
|
|
}
|
|
}
|
|
|
|
pt = closestPtOnLine(gate2ax, gate2ay, gate2bx, gate2by, p[1].x, p[1].y);
|
|
p[3].x = pt.x;
|
|
p[3].y = pt.y;
|
|
|
|
if (CompareSlope(p[1].x, p[1].y, p[3].x, p[3].y, gate1ax, gate1ay) ==
|
|
CompareSlope(p[1].x, p[1].y, p[3].x, p[3].y, gate1bx, gate1by)) {
|
|
closestPtOnLine(gate1ax, gate1ay, gate1bx, gate1by, p[1].x, p[1].y);
|
|
p[2].x = pt.x; /* if point 2 between gates, ignore! */
|
|
p[2].y = pt.y;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void Scumm::GetGates(int trap1, int trap2)
|
|
{
|
|
int i;
|
|
int Closest1 = 0, Closest2 = 0, Closest3 = 0;
|
|
int Dist[8];
|
|
int Dist1, Dist2, Dist3;
|
|
int Box1, Box2, Box3;
|
|
BoxCoords box;
|
|
int polyx[8];
|
|
int polyy[8];
|
|
AdjustBoxResult pt;
|
|
|
|
getBoxCoordinates(trap1, &box);
|
|
polyx[0] = box.ul.x;
|
|
polyy[0] = box.ul.y;
|
|
polyx[1] = box.ur.x;
|
|
polyy[1] = box.ur.y;
|
|
polyx[2] = box.ll.x;
|
|
polyy[2] = box.ll.y;
|
|
polyx[3] = box.lr.x;
|
|
polyy[3] = box.lr.y;
|
|
for (i = 0; i < 4; i++) {
|
|
pt = getClosestPtOnBox(trap2, polyx[i], polyy[i]);
|
|
Dist[i] = pt.dist;
|
|
CloX[i] = pt.x;
|
|
CloY[i] = pt.y;
|
|
}
|
|
|
|
getBoxCoordinates(trap2, &box);
|
|
polyx[4] = box.ul.x;
|
|
polyy[4] = box.ul.y;
|
|
polyx[5] = box.ur.x;
|
|
polyy[5] = box.ur.y;
|
|
polyx[6] = box.ll.x;
|
|
polyy[6] = box.ll.y;
|
|
polyx[7] = box.lr.x;
|
|
polyy[7] = box.lr.y;
|
|
for (i = 4; i < 8; i++) {
|
|
pt = getClosestPtOnBox(trap1, polyx[i], polyy[i]);
|
|
Dist[i] = pt.dist;
|
|
CloX[i] = pt.x;
|
|
CloY[i] = pt.y;
|
|
}
|
|
|
|
|
|
Dist1 = 0xFFFF;
|
|
for (i = 0; i < 8; i++) {
|
|
if (Dist[i] < Dist1) {
|
|
Dist1 = Dist[i];
|
|
Closest1 = i;
|
|
}
|
|
}
|
|
Dist[Closest1] = 0xFFFF;
|
|
|
|
Dist2 = 0xFFFF;
|
|
for (i = 0; i < 8; i++) {
|
|
if (Dist[i] < Dist2) {
|
|
Dist2 = Dist[i];
|
|
Closest2 = i;
|
|
}
|
|
}
|
|
Dist[Closest2] = 0xFFFF;
|
|
|
|
Dist3 = 0xFFFF;
|
|
for (i = 0; i < 8; i++) {
|
|
if (Dist[i] < Dist3) {
|
|
Dist3 = Dist[i];
|
|
Closest3 = i;
|
|
}
|
|
}
|
|
|
|
Box1 = (Closest1 > 3);
|
|
Box2 = (Closest2 > 3);
|
|
Box3 = (Closest3 > 3);
|
|
|
|
Dist1 = (int)sqrt(Dist1);
|
|
Dist2 = (int)sqrt(Dist2);
|
|
Dist3 = (int)sqrt(Dist3);
|
|
|
|
if (Box1 == Box2 && abs(Dist1 - Dist2) < 4) {
|
|
SetGate(Closest1, Closest2, polyx, polyy);
|
|
|
|
} else if (Box1 == Box2 && Dist1 == Dist2) { /* parallel */
|
|
SetGate(Closest1, Closest2, polyx, polyy);
|
|
} else if (Box1 == Box3 && Dist1 == Dist3) { /* parallel */
|
|
SetGate(Closest1, Closest3, polyx, polyy);
|
|
} else if (Box2 == Box3 && Dist2 == Dist3) { /* parallel */
|
|
SetGate(Closest2, Closest3, polyx, polyy);
|
|
|
|
|
|
} else if (Box1 == Box3 && abs(Dist1 - Dist3) < 4) {
|
|
SetGate(Closest1, Closest3, polyx, polyy);
|
|
} else if (abs(Dist1 - Dist3) < 4) { /* if 1 close to 3 then use 2-3 */
|
|
SetGate(Closest2, Closest3, polyx, polyy);
|
|
} else if (abs(Dist1 - Dist2) < 4) {
|
|
SetGate(Closest1, Closest2, polyx, polyy);
|
|
} else {
|
|
SetGate(Closest1, Closest1, polyx, polyy);
|
|
}
|
|
}
|
|
|
|
int Scumm::CompareSlope(int X1, int Y1, int X2, int Y2, int X3, int Y3)
|
|
{
|
|
if ((Y2 - Y1) * (X3 - X1) > (Y3 - Y1) * (X2 - X1))
|
|
return (0);
|
|
return (1);
|
|
}
|
|
|
|
void Scumm::SetGate(int line1, int line2, int polyx[8], int polyy[8])
|
|
{
|
|
|
|
if (line1 < 4) { /* from box 1 to box 2 */
|
|
gate1ax = polyx[line1];
|
|
gate1ay = polyy[line1];
|
|
gate2ax = CloX[line1];
|
|
gate2ay = CloY[line1];
|
|
|
|
} else {
|
|
gate2ax = polyx[line1];
|
|
gate2ay = polyy[line1];
|
|
gate1ax = CloX[line1];
|
|
gate1ay = CloY[line1];
|
|
}
|
|
|
|
if (line2 < 4) { /* from box */
|
|
gate1bx = polyx[line2];
|
|
gate1by = polyy[line2];
|
|
gate2bx = CloX[line2];
|
|
gate2by = CloY[line2];
|
|
|
|
} else {
|
|
gate2bx = polyx[line2];
|
|
gate2by = polyy[line2];
|
|
gate1bx = CloX[line2];
|
|
gate1by = CloY[line2];
|
|
}
|
|
}
|