mirror of https://github.com/ZDoom/raze-gles.git
132 lines
3.2 KiB
C++
132 lines
3.2 KiB
C++
//-------------------------------------------------------------------------
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/*
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Copyright (C) 2010-2019 EDuke32 developers and contributors
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Copyright (C) 2019 Nuke.YKT
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This file is part of NBlood.
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NBlood is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License version 2
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as published by the Free Software Foundation.
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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.
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See the 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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//-------------------------------------------------------------------------
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#include "ns.h" // Must come before everything else!
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "build.h"
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#include "common_game.h"
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#include "blood.h"
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#include "fire.h"
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#include "globals.h"
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#include "misc.h"
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#include "tile.h"
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BEGIN_BLD_NS
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int fireSize = 128;
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int gDamping = 6;
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char CoolTable[1024];
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void CellularFrame(char *pFrame, int sizeX, int sizeY);
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char FrameBuffer[17280];
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char SeedBuffer[16][128];
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char *gCLU;
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void InitSeedBuffers(void)
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{
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for (int i = 0; i < 16; i++)
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for (int j = 0; j < fireSize; j += 2)
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SeedBuffer[i][j] = SeedBuffer[i][j+1] = wrand();
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}
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void BuildCoolTable(void)
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{
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for (int i = 0; i < 1024; i++)
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CoolTable[i] = ClipLow((i-gDamping) / 4, 0);
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}
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void DoFireFrame(void)
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{
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int nRand = qrand()&15;
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for (int i = 0; i < 3; i++)
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{
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memcpy(FrameBuffer+16896+i*128, SeedBuffer[nRand], 128);
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}
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CellularFrame(FrameBuffer, 128, 132);
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auto pData = TileFiles.tileMakeWritable(2342);
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char *pSource = FrameBuffer;
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int x = fireSize;
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do
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{
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int y = fireSize;
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auto pDataBak = pData;
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do
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{
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*pData = gCLU[*pSource];
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pSource++;
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pData += fireSize;
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} while (--y);
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pData = pDataBak + 1;
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} while (--x);
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}
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void FireInit(void)
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{
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memset(FrameBuffer, 0, sizeof(FrameBuffer));
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BuildCoolTable();
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InitSeedBuffers();
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DICTNODE *pNode = gSysRes.Lookup("RFIRE", "CLU");
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if (!pNode)
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ThrowError("RFIRE.CLU not found");
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gCLU = (char*)gSysRes.Lock(pNode);
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for (int i = 0; i < 100; i++)
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DoFireFrame();
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}
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void FireProcess(void)
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{
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static ClockTicks lastUpdate;
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if (totalclock < lastUpdate || lastUpdate + 2 < totalclock)
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{
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DoFireFrame();
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lastUpdate = totalclock;
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tileInvalidate(2342, -1, -1);
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}
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}
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void CellularFrame(char *pFrame, int sizeX, int sizeY)
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{
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int nSquare = sizeX * sizeY;
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unsigned char *pPtr1 = (unsigned char*)pFrame;
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while (nSquare--)
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{
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unsigned char *pPtr2 = pPtr1+sizeX;
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int sum = *(pPtr2-1) + *pPtr2 + *(pPtr2+1) + *(pPtr2+sizeX);
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if (*(pPtr2+sizeX) > 96)
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{
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pPtr2 += sizeX;
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sum += *(pPtr2-1) + *pPtr2 + *(pPtr2+1) + *(pPtr2+sizeX);
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sum >>= 1;
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}
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*pPtr1 = CoolTable[sum];
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pPtr1++;
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}
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}
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END_BLD_NS
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