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lua_blockmaplib.c: added "polyobjs" option to searchBlockmap function

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also updated my copyright years in this file B)
This commit is contained in:
Monster Iestyn 2020-09-09 16:56:48 +01:00
parent 625aeb1560
commit e6136eb113
1 changed files with 55 additions and 1 deletions
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56
src/lua_blockmaplib.c
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@ -1,6 +1,6 @@
// SONIC ROBO BLAST 2
//-----------------------------------------------------------------------------
// Copyright (C) 2016 by Iestyn "Monster Iestyn" Jealous.
// Copyright (C) 2016-2020 by Iestyn "Monster Iestyn" Jealous.
// Copyright (C) 2016-2020 by Sonic Team Junior.
//
// This program is free software distributed under the
@ -13,6 +13,7 @@
#include "doomdef.h"
#include "p_local.h"
#include "r_main.h" // validcount
#include "p_polyobj.h"
#include "lua_script.h"
#include "lua_libs.h"
//#include "lua_hud.h" // hud_running errors
@ -20,6 +21,7 @@
static const char *const search_opt[] = {
"objects",
"lines",
"polyobjs",
NULL};
// a quickly-made function pointer typedef used by lib_searchBlockmap...
@ -167,6 +169,55 @@ static UINT8 lib_searchBlockmap_Lines(lua_State *L, INT32 x, INT32 y, mobj_t *th
return 0; // Everything was checked.
}
// Helper function for "polyobjs" search
static UINT8 lib_searchBlockmap_PolyObjs(lua_State *L, INT32 x, INT32 y, mobj_t *thing)
{
INT32 offset;
polymaplink_t *plink; // haleyjd 02/22/06
if (x < 0 || y < 0 || x >= bmapwidth || y >= bmapheight)
return 0;
offset = y*bmapwidth + x;
// haleyjd 02/22/06: consider polyobject lines
plink = polyblocklinks[offset];
while (plink)
{
polyobj_t *po = plink->po;
if (po->validcount != validcount) // if polyobj hasn't been checked
{
po->validcount = validcount;
lua_pushvalue(L, 1);
LUA_PushUserdata(L, thing, META_MOBJ);
LUA_PushUserdata(L, po, META_POLYOBJ);
if (lua_pcall(gL, 2, 1, 0)) {
if (!blockfuncerror || cv_debug & DBG_LUA)
CONS_Alert(CONS_WARNING,"%s\n",lua_tostring(gL, -1));
lua_pop(gL, 1);
blockfuncerror = true;
return 0; // *shrugs*
}
if (!lua_isnil(gL, -1))
{ // if nil, continue
if (lua_toboolean(gL, -1))
return 2; // stop whole search
else
return 1; // stop block search
}
lua_pop(gL, 1);
if (P_MobjWasRemoved(thing))
return 2;
}
plink = (polymaplink_t *)(plink->link.next);
}
return 0; // Everything was checked.
}
// The searchBlockmap function
// arguments: searchBlockmap(searchtype, function, mobj, [x1, x2, y1, y2])
// return value:
@ -195,6 +246,9 @@ static int lib_searchBlockmap(lua_State *L)
case 1: // "lines"
searchFunc = lib_searchBlockmap_Lines;
break;
case 2: // "polyobjs"
searchFunc = lib_searchBlockmap_PolyObjs;
break;
}
// the mobj we are searching around, the "calling" mobj we could say