on linux assume datapath is always relative to cmake_install_prefix, unless you provide an absolute path; on win32/osx hardcode engine path to default installation prefixes (it gets overridden at runtime so it works even if you move the data folder)
#include "lua.h"
#include "physfs.h"
#define BUFSIZE 1024
void *physfsReaderBuffer;
PHYSFS_DECL const char * physfsReader(lua_State *L, PHYSFS_File *f, size_t *size)
{
if(PHYSFS_eof(f))
{
return NULL;
}
else
{
*size = PHYSFS_readBytes(f, physfsReaderBuffer, BUFSIZE);
if(*size == 0)
return NULL;
else
return physfsReaderBuffer;
}
}
PHYSFS_DECL void physfsReaderSetBuffer(void *buffer)
{
physfsReaderBuffer = buffer;
}