Spring RTS Engine

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#include "AbicAICallbackWrapper.h"
#include "AbicFeatureDefWrapper.h"
#include "AbicMoveDataWrapper.h"
#include "AbicUnitDefWrapper.h"

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DLL_EXPORT void InitAI(int team)
{
    char buffer[1024];
    
    SendTextMsg( "Hello from abi-called dll!", 0 );
    
    sprintf( buffer, "The map name is: %s", GetMapName() );
    SendTextMsg( buffer, 0 );
}

DLL_EXPORT void UnitCreated(int unit)									//called when a new unit is created on ai team
{
    char buffer[1024];
    
    const UnitDef *unitdef = GetUnitDef( unit );
    sprintf( buffer, "Unit created: %s", UnitDef_get_name( unitdef ) );
    SendTextMsg( buffer, 0 );

    const MoveData *movedata = UnitDef_get_movedata( unitdef );
    sprintf( buffer, "Max Slope: %f", MoveData_get_maxSlope( movedata ) );
    SendTextMsg( buffer, 0 );
}

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struct IAICallback_c {
	void (*SendTextMsg) (const char* text, int priority);
	const char* (*GetMapName) (void);
	const UnitDef* (*GetUnitDefByID) (int unitID);
        ...
};

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#pragma push(pack, 1)
#pragma pop

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struct __attribute__((packed)) {
  int blah;
}

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#define UNITDEF_MAXHEALTH  0
#define UNITDEF_NUMWEAPONS 1
//etc.
extern "C" {
int GetUnitDefInt(UnitDefHandleType handle, int which);
float GetUnitDefFloat(UnitDefHandleType handle, int which);
};

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extern "C" int GetUnitDefInt(UnitDefHandleType handle, int which) {
  static const int offset[10];
  // on first call, fill the offset table
  if (!offset[0]) {
    CUnitDef ud; // just here to calc offsets
    offset[0] = int(&ud.maxHealth - &ud),
    offset[1] = int(&ud.numWeapons - &ud),
    //etc.
  };
  // ud actually points to a CUnitDef
  char* ud = (char*)handle;
  return *(int*)(ud + offset[which]);
}

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#pragma pack(push, 1)
#pragma pack(pop)

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Player hughperkins joined as 0
GlobalAI0: Hello from abi-called dll!
GlobalAI0: The map name is: SmallDivide.smf
GlobalAI0: Unit created: ARMCOM
GlobalAI0: Max Slope: 0.330869
GlobalAI1: Hello from abi-called dll!
GlobalAI1: The map name is: SmallDivide.smf
GlobalAI1: Unit created: CORCOM
GlobalAI1: Max Slope: 0.330869
User exited

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struct IAICallback *aicallback;

DLL_EXPORT void InitAI( struct IAICallback *aicallback, int team)
{
    char buffer[1024];
    ::aicallback = aicallback;
    
    SendTextMsg( aicallback, "Hello from abi-called dll!", 0 );
    
    sprintf( buffer, "The map name is: %s", GetMapName( aicallback ) );
    SendTextMsg( aicallback, buffer, 0 );
    
    sprintf( buffer, "Our ally team is: %i", GetMyTeam( aicallback ) );
    SendTextMsg( aicallback, buffer, 0 );
}

DLL_EXPORT void UnitCreated(int unit)									//called when a new unit is created on ai team
{
    char buffer[1024];
    
    const UnitDef *unitdef = GetUnitDef( aicallback, unit );
    sprintf( buffer, "Unit created: %s", UnitDef_get_name( unitdef ) );
    SendTextMsg( aicallback, buffer, 0 );

    const MoveData *movedata = UnitDef_get_movedata( unitdef );
    sprintf( buffer, "Max Slope: %f", MoveData_get_maxSlope( movedata ) );
    SendTextMsg( aicallback, buffer, 0 );
}

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template<class type> inline std::string to_string( const type & value) {
	std::ostringstream streamOut;
	streamOut << value;
	return streamOut.str();
}

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AICALLBACK_API bool UnitDef_get_loaded( const UnitDef *self )
{
   return ( ( UnitDef *) self)->loaded;
}

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bool loaded = UnitDef_get_loaded(ud);

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bool loaded = ud->loaded;