mirror of
https://bitbucket.org/CPMADevs/cnq3
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104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
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#pragma once
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// arQon:
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// rather than have to cast the hell out of every single arg in every single trap
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// (the "no implict conversion from void*" rule is so fkn annoying on PODs) >:(
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// we provide an explicit conversion to a VM_Arg, which then implicitly converts
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// via operators to all the types we share with the VMs. CUNNING LIKE FOX :P
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// myT:
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// Yeah... except for one rather important issue.
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// When the type can't be deduced, no conversion operator is invoked at all.
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// In a case like `va("Say hello to %s", VMA(1))`, `VMA(1)` doesn't return a pointer
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// but a VM_Arg struct by value, which could be larger than just the intptr_t member.
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// The simplest fix I could think of was to use #pragma pack for this.
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// However, calling code should force an implicit conversion with a cast like so:
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// `va("Say hello to %s", (const char*)VMA(1))`
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#define VMA_CONVOP(T) operator T*() const { return (T*)p; }
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#pragma pack(push, 1)
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struct VM_Arg {
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VM_Arg( intptr_t x ) : p(x) {}
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intptr_t p;
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VMA_CONVOP( const char );
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VMA_CONVOP( char );
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VMA_CONVOP( void );
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VMA_CONVOP( byte );
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VMA_CONVOP( const byte );
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VMA_CONVOP( vmCvar_t );
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VMA_CONVOP( const vec3_t* );
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VMA_CONVOP( const vec3_t );
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VMA_CONVOP( const vec_t );
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VMA_CONVOP( vec3_t );
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VMA_CONVOP( vec_t );
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VMA_CONVOP( fileHandle_t );
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VMA_CONVOP( fontInfo_t );
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VMA_CONVOP( gameState_t );
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VMA_CONVOP( markFragment_t );
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VMA_CONVOP( orientation_t );
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VMA_CONVOP( playerState_t );
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VMA_CONVOP( qtime_t );
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VMA_CONVOP( trace_t );
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VMA_CONVOP( usercmd_t );
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// known types are, understandably, a little inconsistent between vm's
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#if defined(__TR_TYPES_H)
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VMA_CONVOP( glconfig_t );
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VMA_CONVOP( const polyVert_t );
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VMA_CONVOP( const refdef_t );
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VMA_CONVOP( const refEntity_t );
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VMA_CONVOP( snapshot_t );
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#endif
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#if defined(GAME_API_VERSION) // g_public, therefore game or cgame
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VMA_CONVOP( sharedEntity_t );
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#else
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VMA_CONVOP( uiClientState_t );
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#endif
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// all the bot stuff and the retarded crap that TA added
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#if defined(GAME_API_VERSION) // g_public, therefore game or cgame
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VMA_CONVOP( struct aas_altroutegoal_s );
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VMA_CONVOP( struct aas_areainfo_s );
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VMA_CONVOP( struct aas_clientmove_s );
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VMA_CONVOP( struct aas_entityinfo_s );
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VMA_CONVOP( struct aas_predictroute_s );
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VMA_CONVOP( struct bot_consolemessage_s );
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VMA_CONVOP( struct bot_goal_s );
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VMA_CONVOP( struct bot_initmove_s );
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VMA_CONVOP( struct bot_match_s );
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VMA_CONVOP( struct bot_moveresult_s );
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VMA_CONVOP( struct weaponinfo_s );
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VMA_CONVOP( bot_entitystate_t );
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VMA_CONVOP( bot_input_t );
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VMA_CONVOP( pc_token_t );
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#endif
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// this is not strictly necessary as it will fail otherwise,
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// but it improves the error message
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#if __cplusplus >= 201103L
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template<typename T>
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operator T*() const
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{
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static_assert( false, "VMA_CONVOP missing for this type" );
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return (T*)p;
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}
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#endif
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};
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#pragma pack(pop)
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#undef VMA_CONVOP
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#if __cplusplus >= 201103L
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static_assert( sizeof(VM_Arg) == sizeof(intptr_t), "Invalid VM_Arg struct packing" );
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#endif
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#define VMA(x) VM_Arg(VM_ArgPtr(args[x]))
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