#include "Area.h"

Direction getOppositeDirection(Direction dir)
{
    switch (dir)
    {
    case NORTH:
        return SOUTH;
    case EAST:
        return WEST;
    case SOUTH:
        return NORTH;
    case WEST:
        return EAST;
    case TOP:
        return BOTTOM;
    case BOTTOM:
        return TOP;
    default:
        return NO_DIRECTION;
    }
}

Directions getDirections(
    Framework::Vec3<float> currentPos, Framework::Vec3<float> otherPos)
{
    Directions result = NO_DIRECTION;
    if (currentPos.x < otherPos.x) result |= EAST;
    if (currentPos.x > otherPos.x) result |= WEST;
    if (currentPos.y < otherPos.y) result |= SOUTH;
    if (currentPos.y > otherPos.y) result |= NORTH;
    if (currentPos.z < otherPos.z) result |= TOP;
    if (currentPos.z > otherPos.z) result |= BOTTOM;
    return result;
}

Framework::Vec3<int> getDirection(Directions dir)
{
    Framework::Vec3<int> result(0, 0, 0);
    if ((dir | NORTH) == dir) --result.y;
    if ((dir | EAST) == dir) ++result.x;
    if ((dir | SOUTH) == dir) ++result.y;
    if ((dir | WEST) == dir) --result.x;
    if ((dir | TOP) == dir) ++result.z;
    if ((dir | BOTTOM) == dir) --result.z;
    return result;
}

int getDirectionIndex(Direction dir)
{
    if (dir == NORTH) return 0;
    if (dir == EAST) return 1;
    if (dir == SOUTH) return 2;
    if (dir == WEST) return 3;
    if (dir == TOP) return 4;
    if (dir == BOTTOM) return 5;
    assert(false);
    return -1;
}

Direction getDirectionFromIndex(int index)
{
    return (Direction)(1 << index);
}