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Some fixes for non-existent particles in Lua

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Return 0 for get_property("type", ...) instead of erroring, to make checking for
particles easier. Also stop x coordinate being used as a particle index if
no particle exists at that location.
This commit is contained in:
jacksonmj 2011-07-02 20:40:29 +08:00 committed by Simon Robertshaw
parent 25a2b52b64
commit 80fd7edd7f
1 changed files with 15 additions and 1 deletions
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16
src/luaconsole.c
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@ -455,6 +455,8 @@ int luatpt_set_property(lua_State* l)
r = pmap[y][i];
if (!r || (r>>8)>=NPART || (partsel && partsel != parts[r>>8].type))
r = photons[y][i];
if (!r || (r>>8)>=NPART || (partsel && partsel != parts[r>>8].type))
return 0;
i = r>>8;
}
if (i < 0 || i >= NPART)
@ -483,6 +485,14 @@ int luatpt_get_property(lua_State* l)
r = pmap[y][i];
if (!r || (r>>8)>=NPART)
r = photons[y][i];
if (!r || (r>>8)>=NPART)
{
if (strcmp(prop,"type")==0){
lua_pushinteger(l, 0);
return 1;
}
return luaL_error(l, "Particle does not exist");
}
i = r>>8;
}
else if (y!=-1)
@ -528,7 +538,11 @@ int luatpt_get_property(lua_State* l)
return 1;
}
}
return luaL_error(l, "Particle does not exist", i);
else if (strcmp(prop,"type")==0){
lua_pushinteger(l, 0);
return 1;
}
return luaL_error(l, "Particle does not exist");
}
int luatpt_drawpixel(lua_State* l)