mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-28 20:55:19 +00:00
367 lines
8.2 KiB
C++
367 lines
8.2 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 "cruise/cruise_main.h"
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#include "common/util.h"
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namespace Cruise {
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uint8 *workBuffer;
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uint8 *polyStruct;
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uint8 *adrStructPoly;
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uint8 *polyStructNorm;
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uint8 *polyStructExp;
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uint8 *ctpVar17;
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uint8 *polyStruct0;
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int currentWalkBoxCenterX;
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int currentWalkBoxCenterY;
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int currentWalkBoxCenterXBis;
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int currentWalkBoxCenterYBis;
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int ctpVarUnk;
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uint8 walkboxTable[0x12];
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int computeDistance(int varX, int varY, int paramX, int paramY) {
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int diffX = ABS(paramX - varX);
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int diffY = ABS(paramY - varY);
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if (diffX > diffY) {
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diffY = diffX;
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}
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return (diffY);
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}
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// this function process path finding coordinates
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void computeAllDistance(int16 table[][10], short int coordCount) {
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for(int i=0; i<coordCount; i++) {
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int x1 = ctp_routeCoords[i][0];
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int y1 = ctp_routeCoords[i][1];
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for(int j=0; j<ctp_routes[i][0]; j++) {
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int p = ctp_routes[i][j+1];
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int x2 = ctp_routeCoords[p][0];
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int y2 = ctp_routeCoords[p][1];
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table[i][p] = computeDistance(x1, y1, x2, y2);
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}
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}
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}
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void getWalkBoxCenter(int n, int16 table[][40]) {
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int minX = 1000;
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int minY = 1000;
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int maxX = -1;
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int maxY = -1;
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for(int i=0; i< table[n][0]; i++) {
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int x = table[n][i*2+1];
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int y = table[n][i*2+2];
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if (x < minX)
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minX = x;
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if (x > maxX)
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maxX = x;
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if (y < minY)
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minY = y;
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if (y > maxY)
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maxY = y;
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}
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currentWalkBoxCenterX = ((maxX - minX) / 2) + minX;
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currentWalkBoxCenterY = ((maxY - minY) / 2) + minY;
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}
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// ax dx bx
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void renderCTPWalkBox(int16 *walkboxData, int hotPointX, int hotPointY, int X, int Y, int scale ) {
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int numPoints;
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int i;
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int16 *destination;
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int startX = X - ((upscaleValue(hotPointX, scale) + 0x8000) >> 16);
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// int startY = Y - ((upscaleValue(hotPointY, scale) + 0x8000) >> 16);
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numPoints = *(walkboxData++);
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destination = polyBuffer2;
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for (i = 0; i < numPoints; i++) {
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int pointX = *(walkboxData++);
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int pointY = *(walkboxData++);
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int scaledX =((upscaleValue(pointX, scale) + 0x8000) >> 16) + startX;
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int scaledY =((upscaleValue(pointY, scale) + 0x8000) >> 16) + startX;
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*(destination++) = scaledX;
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*(destination++) = scaledY;
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}
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m_color = 0;
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ctpVarUnk = 0;
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for (i = 0; i < numPoints; i++) {
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walkboxTable[i] = i;
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}
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drawPolyMode2((unsigned char *)walkboxTable, numPoints);
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}
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// this process the walkboxes
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void makeCtStruct(uint8* str, int16 table[][40], int num, int z) {
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int minX = 1000;
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int maxX = -1;
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if(table[num][0] < 1)
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return;
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getWalkBoxCenter(num, table);
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currentWalkBoxCenterXBis = currentWalkBoxCenterX;
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currentWalkBoxCenterYBis = currentWalkBoxCenterY;
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renderCTPWalkBox(&table[num][0], currentWalkBoxCenterX, currentWalkBoxCenterY, currentWalkBoxCenterX, currentWalkBoxCenterY, z + 0x200 );
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int16* a1;
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int16* a2;
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a1 = a2 = (int16*)str;
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a2 += 4+sizeof(int16*); // skip header
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int16* XArray = XMIN_XMAX;
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int minY = *XArray++;
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int i=0;
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while( *XArray >= 0 ) {
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int x1 = *XArray++;
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int x2 = *XArray++;
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if(x1<minX)
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minX = x1;
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if(x2>maxX)
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maxX = x2;
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*a2++ = x1;
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*a2++ = x2;
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i++;
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}
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*(int16**)a1 = a2;
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adrStructPoly = (uint8*)a2;
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*(uint16**)a2 = (uint16*)-1;
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a1+=sizeof(int16*);
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*a1++=num;
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*a1++=walkboxColor[num];
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*a1++=minX;
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*a1++=maxX;
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*a1++=minY;
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*a1++=minY+i+2;
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}
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int getNode(int nodeResult[2], int nodeId){
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if (nodeId < 0 || nodeId >= ctp_routeCoordCount)
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return -1;
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nodeResult[0] = ctp_routeCoords[nodeId][0];
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nodeResult[1] = ctp_routeCoords[nodeId][1];
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return 0;
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}
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int setNodeColor(int nodeIdx, int nodeColor) {
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if (nodeIdx < 0 || nodeIdx >= ctp_routeCoordCount)
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return -1;
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int oldColor = walkboxColor[nodeIdx];
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if(nodeColor == -1)
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return
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walkboxColor[nodeIdx] = nodeColor;
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return oldColor;
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}
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int setNodeState(int nodeIdx, int nodeState) {
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if (nodeIdx < 0 || nodeIdx >= ctp_routeCoordCount)
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return -1;
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int oldState = walkboxState[nodeIdx];
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if(nodeState == -1)
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return
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walkboxState[nodeIdx] = nodeState;
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return oldState;
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}
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int initCt(const char *ctpName) {
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uint8 *dataPointer; // ptr2
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char fileType[5]; // string2
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short int segementSizeTable[7]; // tempTable
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if ( !loadCtFromSave) {
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for (int i = 0; i < 10; i++) {
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persoTable[i] = NULL;
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}
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}
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uint8* ptr = NULL;
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if (!loadFileSub1(&ptr, ctpName, 0)) {
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free(ptr);
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return (-18);
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}
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dataPointer = ptr;
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fileType[4] = 0;
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memcpy(fileType, dataPointer, 4); // get the file type, first 4 bytes of the CTP file
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dataPointer += 4;
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if (strcmp(fileType, "CTP ")) {
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free(ptr);
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return (0);
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}
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ctp_routeCoordCount = readB16(dataPointer); // get the number of nods
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dataPointer += 2;
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for(int i=0; i<7; i++) {
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segementSizeTable[i] = readB16(dataPointer);
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dataPointer += 2;
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}
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// get the path-finding coordinates
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ASSERT((segementSizeTable[0]%4) == 0);
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for(int i=0; i<segementSizeTable[0]/4; i++) {
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ctp_routeCoords[i][0] = readB16(dataPointer);
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dataPointer += 2;
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ctp_routeCoords[i][1] = readB16(dataPointer);
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dataPointer += 2;
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}
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// get the path-finding line informations (indexing the routeCoords array)
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ASSERT((segementSizeTable[1]%20) == 0);
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for(int i=0; i<segementSizeTable[1]/20; i++) {
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for(int j=0; j<10; j++) {
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ctp_routes[i][j] = readB16(dataPointer);
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dataPointer += 2;
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}
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}
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// read polygons
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ASSERT((segementSizeTable[2]%80) == 0);
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for(int i=0; i<segementSizeTable[2]/80; i++) {
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for(int j=0; j<40; j++) {
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ctp_walkboxTable[i][j] = readB16(dataPointer);
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dataPointer += 2;
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}
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}
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if (loadCtFromSave) {
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// loading from save, ignore the initial values
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dataPointer += segementSizeTable[3];
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dataPointer += segementSizeTable[4];
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} else {
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// get the walkbox type
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// Type: 0x00 - non walkable, 0x01 - walkable, 0x02 - exit zone
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ASSERT((segementSizeTable[3] % 2) == 0);
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for(int i=0; i<segementSizeTable[3]/2; i++) {
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walkboxColor[i] = readB16(dataPointer);
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dataPointer += 2;
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}
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// change indicator, walkbox type can change, i.e. blocked by object (values are either 0x00 or 0x01)
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ASSERT((segementSizeTable[4] % 2) == 0);
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for(int i=0; i<segementSizeTable[4]/2; i++) {
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walkboxState[i] = readB16(dataPointer);
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dataPointer += 2;
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}
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}
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//
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ASSERT((segementSizeTable[5] % 2) == 0);
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for(int i=0; i<segementSizeTable[5]/2; i++) {
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walkboxColorIndex[i] = readB16(dataPointer);
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dataPointer += 2;
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}
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//
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ASSERT((segementSizeTable[6] % 2) == 0);
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for(int i=0; i<segementSizeTable[6]/2; i++) {
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walkboxZoom[i] = readB16(dataPointer);
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dataPointer += 2;
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}
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free(ptr);
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strcpy(currentCtpName, ctpName);
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numberOfWalkboxes = segementSizeTable[6] / 2; // get the number of walkboxes
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computeAllDistance(distanceTable, ctp_routeCoordCount); // process path-finding stuff
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polyStruct = polyStructNorm = adrStructPoly = workBuffer;
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ptr = (uint8 *) polyStruct;
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for(int i= numberOfWalkboxes-1; i >=0; i--) {
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makeCtStruct(adrStructPoly, ctp_walkboxTable, i, 0 );
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}
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polyStructExp = adrStructPoly += 4;
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for(int i= numberOfWalkboxes-1; i >=0; i--) {
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makeCtStruct(adrStructPoly, ctp_walkboxTable, i, walkboxZoom[i] * 20 );
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}
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int ctSize = (adrStructPoly - ptr) + 4; // for now, the +4 is a safe zone
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adrStructPoly = polyStructNorm = polyStruct = (uint8 *) malloc(ctSize);
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for(int i= numberOfWalkboxes-1; i >=0; i--) {
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makeCtStruct(adrStructPoly, ctp_walkboxTable, i, 0);
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}
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polyStructExp = adrStructPoly += 4;
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for(int i= numberOfWalkboxes-1; i >=0; i--) {
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makeCtStruct(adrStructPoly, ctp_walkboxTable, i, walkboxZoom[i] * 20);
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}
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polyStruct0 = polyStructNorm;
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return (1);
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}
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} // End of namespace Cruise
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