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Вот часть кода:

struct Point {
   int x;
   int y;
};

Point VectorForce;

struct AABB {
    Point c; 
    byte r[2];
};

//.........................
//............Код............................
//......................

boolean ScanCollision(AABB &a, AABB &b, Point &mt) {
   int rcx = module (a.c.x - b.c.x);
   int rx = (a.r[0] + b.r[0]);
    if (rcx > rx) return false;
   int rcy = module (a.c.y - b.c.y);
   int ry = (a.r[1] + b.r[1]);
    if (rcy > ry) return false;
   int overlap_x = rcx - rx;
   int overlap_y = rcy - ry;
   mt.x = 0;
   mt.y = 0;
   if (overlap_x < overlap_y)
  {
    mt.x = overlap_x;  
    if (a.c.x < b.c.x)
    {
       mt.x = -mt.x;
    }
  } else {
        mt.y = overlap_y;  
        if (a.c.y < b.c.y)
       {
          mt.y = -mt.y;
       }
    }
    return true;
}

Компилятор говорит: "

core:82: error: 'AABB' was not declared in this scope

core:82: error: 'AABB' was not declared in this scope