54 lines
1.7 KiB
Plaintext
54 lines
1.7 KiB
Plaintext
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There's a nasty bug in FlowView in R_Render.c.
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Here's the modified version that was used in Greed:
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void FlowView()
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{
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entry_t *process_p, *nextprocess_p;
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process_p=entries;
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process_p->tilex=viewtilex;
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process_p->tiley=viewtiley;
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process_p->mapspot=(viewtiley<<6)+viewtilex;
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process_p->xmin=0;
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process_p->xmax=windowWidth-1;
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entry_p=process_p+1;
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memset(entrycount,0,MAPCOLS*MAPROWS*4);
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entrycounter=1;
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while (process_p<entry_p)
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{
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if (process_p->mapspot==-1) // entry has been merged
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{
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process_p++;
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continue;
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}
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/* check for mergeable entries */
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if (entrycount[process_p->mapspot]>process_p->counter) // mergeable tile
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for (nextprocess_p=process_p+1;nextprocess_p<entry_p;nextprocess_p++) // scan for mergeable entries
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if (nextprocess_p->mapspot==process_p->mapspot)
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{
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if (nextprocess_p->xmin==process_p->xmax+1) process_p->xmax=nextprocess_p->xmax;
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else if (nextprocess_p->xmax==process_p->xmin-1) process_p->xmin=nextprocess_p->xmin;
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else // bad merge!
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MS_Error("Bad tile event combination:\n"
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" nextprocess_p=%d process_p=%d\n"
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" nextprocess_p->xmin=%d nextprocess_p->xmax=%d\n"
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" process_p->xmin=%d process_p->xmax=%d\n",
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(int)nextprocess_p,(int)process_p,
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nextprocess_p->xmin,nextprocess_p->xmax,
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process_p->xmin,process_p->xmax);
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entrycount[nextprocess_p->mapspot]=0;
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nextprocess_p->mapspot=-1;
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}
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/* check for a dublicate entry */
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if (entrymap[process_p->mapspot]==frameon) goto end;
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entrymap[process_p->mapspot]=frameon;
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RenderTileWalls(process_p);
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RenderTileEnds();
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end:
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process_p++;
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}
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}
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