Grid the landscape, and shortcircuit checks on the collision array if there are no nearby checked in collisions to be collided with. This is a big win for fire's ammoshove in particular. Also add a +2 that seemed missing in the check, and update fire accordingly.

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/*

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** $Id: lapi.h,v 2.2.1.1 2007/12/27 13:02:25 roberto Exp $

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** Auxiliary functions from Lua API

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** See Copyright Notice in lua.h

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*/

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#ifndef lapi_h

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#define lapi_h

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#include "lobject.h"

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LUAI_FUNC void luaA_pushobject (lua_State *L, const TValue *o);

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#endif