public NormalMappedWall(GraphicsDevice graphicsDevice, Vector3 corner1, Vector3 corner2,
Vector3 corner3, Vector3 corner4, Vector3 normal)
{
Vector3[] wallCorners = new Vector3[4];
wallCorners[0] = corner1;//near left
wallCorners[1] = corner2;//near right
wallCorners[2] = corner3;//far right
wallCorners[3] = corner4;//far left
float size = Vector3.Distance(corner1, corner3);
size /= 100;
Vector2[] wallTexCoords =
{
new Vector2(0.0f, 0.0f), // top left corner
new Vector2(GameConstants.FLOOR_TILE_FACTOR_NORMAL*size, 0.0f), // top right corner
new Vector2(GameConstants.FLOOR_TILE_FACTOR_NORMAL*size, GameConstants.FLOOR_TILE_FACTOR_NORMAL*size), // bottom right corner
new Vector2(0.0f, GameConstants.FLOOR_TILE_FACTOR_NORMAL*size) // bottom left corner
};
int offset = 0;
vertices = new NormalMappedVertex[6];
vertices[offset++] = new NormalMappedVertex(wallCorners[3], wallTexCoords[0], Vector3.Up, Vector4.Zero);//btm left
vertices[offset++] = new NormalMappedVertex(wallCorners[2], wallTexCoords[1], Vector3.Up, Vector4.Zero);//btm rigth
vertices[offset++] = new NormalMappedVertex(wallCorners[1], wallTexCoords[2], Vector3.Up, Vector4.Zero);//top right
vertices[offset++] = new NormalMappedVertex(wallCorners[1], wallTexCoords[2], Vector3.Up, Vector4.Zero);//top right
vertices[offset++] = new NormalMappedVertex(wallCorners[0], wallTexCoords[3], Vector3.Up, Vector4.Zero);//top left
vertices[offset++] = new NormalMappedVertex(wallCorners[3], wallTexCoords[0], Vector3.Up, Vector4.Zero);//btm left
CalcTangent(graphicsDevice);
}
private void GenerateRoomGeometry(float floorSize,float wallHeight,
float floorTileFactor,float ceilingTileFactor,
float wallTileFactorX,float wallTileFactorY)
{
#region wrapyourbrainarroundthis
/* 5--------6
* |\ /|
* | 4----7 |
* | | | |
* | | | |
* | 0----3 |
* |/ \|
* 1--------2
*
* +z wall: 6512 tri1: 651 tri2: 126
* -z wall: 4730 tri1: 473 tri2: 304
* +x wall: 7623 tri1: 762 tri2: 237
* -x wall: 5401 tri1: 540 tri2: 015
*
* +y ceiling: 5674 tri1: 567 tri2: 745
* -y floor: 0321 tri1: 032 tri2: 210
*/
#endregion
int offset = 0;
float halfSize = floorSize * 0.5f;
#region vertexcoords
Vector3[] corners =
{
new Vector3(-halfSize, 0.0f, -halfSize), // 0
new Vector3(-halfSize, 0.0f, halfSize), // 1
new Vector3( halfSize, 0.0f, halfSize), // 2
new Vector3( halfSize, 0.0f, -halfSize), // 3
new Vector3(-halfSize, wallHeight, -halfSize), // 4
new Vector3(-halfSize, wallHeight, halfSize), // 5
new Vector3( halfSize, wallHeight, halfSize), // 6
new Vector3( halfSize, wallHeight, -halfSize), // 7
};
Vector2[] wallTexCoords =
{
new Vector2(0.0f, 0.0f), // top left corner
new Vector2(wallTileFactorX, 0.0f), // top right corner
new Vector2(wallTileFactorX, wallTileFactorY), // bottom right corner
new Vector2(0.0f, wallTileFactorY) // bottom left corner
};
Vector2[] floorTexCoords =
{
new Vector2(0.0f, 0.0f), // top left corner
new Vector2(floorTileFactor, 0.0f), // top right corner
new Vector2(floorTileFactor, floorTileFactor), // bottom right corner
new Vector2(0.0f, floorTileFactor) // bottom left corner
};
Vector2[] ceilingTexCoords =
{
new Vector2(0.0f, 0.0f), // top left corner
new Vector2(ceilingTileFactor, 0.0f), // top right corner
new Vector2(ceilingTileFactor, ceilingTileFactor), // bottom right corner
new Vector2(0.0f, ceilingTileFactor) // bottom left corner
};
#endregion
wallsIndex = offset;
// -z wall: 4730 tri1: 473 tri2: 304
vertices[offset++] = new NormalMappedVertex(corners[4], wallTexCoords[0], Vector3.Backward, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[7], wallTexCoords[1], Vector3.Backward, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[3], wallTexCoords[2], Vector3.Backward, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[3], wallTexCoords[2], Vector3.Backward, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[0], wallTexCoords[3], Vector3.Backward, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[4], wallTexCoords[0], Vector3.Backward, Vector4.Zero);
// +z wall: 6512 tri1: 651 tri2: 126
vertices[offset++] = new NormalMappedVertex(corners[6], wallTexCoords[0], Vector3.Forward, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[5], wallTexCoords[1], Vector3.Forward, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[1], wallTexCoords[2], Vector3.Forward, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[1], wallTexCoords[2], Vector3.Forward, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[2], wallTexCoords[3], Vector3.Forward, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[6], wallTexCoords[0], Vector3.Forward, Vector4.Zero);
// -x wall: 5401 tri1: 540 tri2: 015
vertices[offset++] = new NormalMappedVertex(corners[5], wallTexCoords[0], Vector3.Right, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[4], wallTexCoords[1], Vector3.Right, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[0], wallTexCoords[2], Vector3.Right, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[0], wallTexCoords[2], Vector3.Right, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[1], wallTexCoords[3], Vector3.Right, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[5], wallTexCoords[0], Vector3.Right, Vector4.Zero);
// +x wall: 7623 tri1: 762 tri2: 237
vertices[offset++] = new NormalMappedVertex(corners[7], wallTexCoords[0], Vector3.Left, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[6], wallTexCoords[1], Vector3.Left, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[2], wallTexCoords[2], Vector3.Left, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[2], wallTexCoords[2], Vector3.Left, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[3], wallTexCoords[3], Vector3.Left, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[7], wallTexCoords[0], Vector3.Left, Vector4.Zero);
// +y ceiling: 5674 tri1: 567 tri2: 745
ceilingIndex = offset;
vertices[offset++] = new NormalMappedVertex(corners[5], ceilingTexCoords[0], Vector3.Down, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[6], ceilingTexCoords[1], Vector3.Down, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[7], ceilingTexCoords[2], Vector3.Down, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[7], ceilingTexCoords[2], Vector3.Down, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[4], ceilingTexCoords[3], Vector3.Down, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[5], ceilingTexCoords[0], Vector3.Down, Vector4.Zero);
//// -y floor: 0321 tri1: 032 tri2: 210
floorIndex = offset;
vertices[offset++] = new NormalMappedVertex(corners[0], floorTexCoords[0], Vector3.Up, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[3], floorTexCoords[1], Vector3.Up, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[2], floorTexCoords[2], Vector3.Up, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[2], floorTexCoords[2], Vector3.Up, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[1], floorTexCoords[3], Vector3.Up, Vector4.Zero);
vertices[offset++] = new NormalMappedVertex(corners[0], floorTexCoords[0], Vector3.Up, Vector4.Zero);
}
/// <summary>
/// Generates a wall from the starting position, using the innVector
/// as the normal of the surface and doing the wall perpendicularly
/// towards the length
/// </summary>
/// <param name="startPos"></param>
/// <param name="innVec">The normal of the wall. If the wall should point up positive
/// z axis, 90 degrees on the x axis, the vector would be (0, 0, 1)</param>
/// <param name="lenght"></param>
private void GenerateWall(Vector3 startPos, Vector3 endPos, Vector3 innVec,
float height, GraphicsDevice graphicsDevice)
{
float length = Vector3.Distance(startPos, endPos);
length /= 100;
Vector2[] wallTexCoords =
{
new Vector2(0.0f, 0.0f), // top left corner
new Vector2(GameConstants.WallTileFactorNormalX*length, 0.0f), // top right corner
new Vector2(GameConstants.WallTileFactorNormalX*length, GameConstants.WallTileFactorNormalY),// bottom right corner
new Vector2(0.0f, GameConstants.WallTileFactorNormalY) // bottom left corner
};
int offset = 0;
vertices = new NormalMappedVertex[6];
Vector3[] wallCorners = new Vector3[4];
wallCorners[0] = startPos; //Starting point, bottom left corner when facing wall
wallCorners[1] = endPos; //Bottom right corner when facing wall
wallCorners[2] = new Vector3(endPos.X, height, endPos.Z);//top right
wallCorners[3] = new Vector3(startPos.X, height, startPos.Z);//top left
vertices[offset++] = new NormalMappedVertex(wallCorners[0], wallTexCoords[0], innVec, Vector4.Zero);//btm left
vertices[offset++] = new NormalMappedVertex(wallCorners[1], wallTexCoords[1], innVec, Vector4.Zero);//btm rigth
vertices[offset++] = new NormalMappedVertex(wallCorners[2], wallTexCoords[2], innVec, Vector4.Zero);//top right
vertices[offset++] = new NormalMappedVertex(wallCorners[2], wallTexCoords[2], innVec, Vector4.Zero);//top right
vertices[offset++] = new NormalMappedVertex(wallCorners[3], wallTexCoords[3], innVec, Vector4.Zero);//top left
vertices[offset++] = new NormalMappedVertex(wallCorners[0], wallTexCoords[0], innVec, Vector4.Zero);//btm left
CalcTangent(graphicsDevice);
}
/// <summary>
/// Generates a ceiling from the 4 given corners
/// </summary>
/// <param name="graphicsDevice"></param>
/// <param name="corner1"></param>
/// <param name="corner2"></param>
/// <param name="corner3"></param>
/// <param name="corner4"></param>
/// <param name="normal"></param>
private void GenerateCeiling(GraphicsDevice graphicsDevice, Vector3 corner1, Vector3 corner2,
Vector3 corner3, Vector3 corner4, Vector3 normal)
{
Vector3[] wallCorners = new Vector3[4];
wallCorners[0] = corner1;//near left
wallCorners[1] = corner2;//near right
wallCorners[2] = corner3;//far right
wallCorners[3] = corner4;//far left
float size = Vector3.Distance(corner1, corner3);
size /= 100;
Vector2[] wallTexCoords =
{
new Vector2(0.0f, 0.0f), // top left corner
new Vector2(GameConstants.FLOOR_TILE_FACTOR_NORMAL*size, 0.0f), // top right corner
new Vector2(GameConstants.FLOOR_TILE_FACTOR_NORMAL*size, GameConstants.FLOOR_TILE_FACTOR_NORMAL*size), // bottom right corner
new Vector2(0.0f, GameConstants.FLOOR_TILE_FACTOR_NORMAL*size) // bottom left corner
};
int offset = 0;
vertices = new NormalMappedVertex[6];
vertices[offset++] = new NormalMappedVertex(wallCorners[0], wallTexCoords[0], normal, Vector4.Zero);//btm left
vertices[offset++] = new NormalMappedVertex(wallCorners[1], wallTexCoords[1], normal, Vector4.Zero);//btm rigth
vertices[offset++] = new NormalMappedVertex(wallCorners[2], wallTexCoords[2], normal, Vector4.Zero);//top right
vertices[offset++] = new NormalMappedVertex(wallCorners[2], wallTexCoords[2], normal, Vector4.Zero);//top right
vertices[offset++] = new NormalMappedVertex(wallCorners[3], wallTexCoords[3], normal, Vector4.Zero);//top left
vertices[offset++] = new NormalMappedVertex(wallCorners[0], wallTexCoords[0], normal, Vector4.Zero);//btm left
Vector4 tangent;
for (int i = 0; i < vertices.Length; i += 3)
{
NormalMappedVertex.CalcTangent(
ref vertices[i].Position,
ref vertices[i + 1].Position,
ref vertices[i + 2].Position,
ref vertices[i].TexCoord,
ref vertices[i + 1].TexCoord,
ref vertices[i + 2].TexCoord,
ref vertices[i].Normal,
out tangent);
vertices[i].Tangent = tangent;
vertices[i + 1].Tangent = tangent;
vertices[i + 2].Tangent = tangent;
}
vertexBuffer = new VertexBuffer(graphicsDevice, typeof(NormalMappedVertex),
vertices.Length, BufferUsage.WriteOnly);
vertexBuffer.SetData(vertices);
}