navrastertypes.h

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/*
* Copyright 2016 Autodesk, Inc. All rights reserved.
* Use of this software is subject to the terms of the Autodesk license agreement and any attachments or Appendices thereto provided at the time of installation or download,
* or which otherwise accompanies this software in either electronic or hard copy form, or which is signed by you and accepted by Autodesk.
*/

#pragma once

#include "gwnavruntime/math/vec2i.h"

namespace Kaim
{

typedef KyUInt16 NavRasterNeighborType;
static const NavRasterNeighborType NavRasterNeighborType_CONNECT    = 0;
static const NavRasterNeighborType NavRasterNeighborType_HOLE       = 1;
static const NavRasterNeighborType NavRasterNeighborType_WALL       = 2;
static const NavRasterNeighborType NavRasterNeighborType_OUTSIDE    = 4;

typedef KyUInt32 PixelColor;
static const PixelColor PixelColor_Unset           = KyUInt32MAXVAL;
static const PixelColor PixelColor_IrrelevantColor = KyUInt32MAXVAL - 7; //to be compliant with boundary colors

typedef KyUInt32 NavRasterFloorIdx;
static const NavRasterFloorIdx NavRasterFloorIdx_Invalid = KyUInt32MAXVAL;

typedef KyUInt32 NavRasterCardinalDir;
static const NavRasterCardinalDir NavRasterCardinalDir_EAST       = CardinalDir_EAST ; // 0
static const NavRasterCardinalDir NavRasterCardinalDir_NORTH      = CardinalDir_NORTH; // 1
static const NavRasterCardinalDir NavRasterCardinalDir_WEST       = CardinalDir_WEST ; // 2
static const NavRasterCardinalDir NavRasterCardinalDir_SOUTH      = CardinalDir_SOUTH; // 3
static const NavRasterCardinalDir NavRasterCardinalDir_NORTH_EAST = 4;
static const NavRasterCardinalDir NavRasterCardinalDir_NORTH_WEST = 5;
static const NavRasterCardinalDir NavRasterCardinalDir_SOUTH_WEST = 6;
static const NavRasterCardinalDir NavRasterCardinalDir_SOUTH_EAST = 7;
KY_INLINE bool IsNavRasterCardinalDirOnDiagonal(const NavRasterCardinalDir dir) { return dir >= 4; }

KY_INLINE Vec2i GetNavRasterPixelNeighbor(const Vec2i& v, NavRasterCardinalDir dir)
{
    //                     N   E   S   W  NE  NW  SW  SE
    const KyInt8 dx[8] = { 1,  0, -1,  0,  1, -1, -1,  1};
    const KyInt8 dy[8] = { 0,  1,  0, -1,  1,  1, -1, -1};
    return Vec2i(v.x + dx[dir], v.y + dy[dir]);
}

enum NavRasterFeatureMask
{
    NavRasterPixelFeature_None = 0,
    NavRasterPixelFeature_Hole = 1,
    NavRasterPixelFeature_Wall = 2,
    NavRasterPixelFeature_Wall_And_Hole = NavRasterPixelFeature_Hole | NavRasterPixelFeature_Wall
};

}