public void DrawTexturedSolidPolygon(SolidVertex[] vertices, Vector3 normal, Color color, Texture2D texture)
{
if (vertices.Length < 3)
{
return;
}
if (!texturedPolygonBuffer.ContainsKey(texture))
{
texturedPolygonBuffer[texture] = new List <PrimitiveVertex>();
}
List <PrimitiveVertex> vertexBuffer = texturedPolygonBuffer[texture];
PrimitiveVertex vertex = new PrimitiveVertex
{
color = new Vector3(color.R / 255.0f, color.G / 255.0f, color.B / 255.0f),
normal = normal
};
// trianglelize polygon and add to texture vertex polygon buffer
for (int i = 3; i < vertices.Length + 1; i++)
{
vertex.position = vertices[0].Position;
vertex.uv = vertices[0].DiffuseUv;
vertexBuffer.Add(vertex);
vertex.position = vertices[i - 2].Position;
vertex.uv = vertices[i - 2].DiffuseUv;
vertexBuffer.Add(vertex);
vertex.position = vertices[i - 1].Position;
vertex.uv = vertices[i - 1].DiffuseUv;
vertexBuffer.Add(vertex);
}
}
public void DrawSolidPolygon(SolidVertex[] vertices, Vector3 normal, Color color)
{
if (vertices.Length < 3)
{
return;
}
PrimitiveVertex vertex = new PrimitiveVertex
{
color = new Vector3(color.R / 255.0f, color.G / 255.0f, color.B / 255.0f),
normal = normal
};
// trianglelize polygon and add to lit polygon buffer
for (int i = 3; i < vertices.Length + 1; i++)
{
vertex.position = vertices[0].Position;
litPolygonBuffer.Add(vertex);
vertex.position = vertices[i - 2].Position;
litPolygonBuffer.Add(vertex);
vertex.position = vertices[i - 1].Position;
litPolygonBuffer.Add(vertex);
}
}
private void DrawDashedLine(Vector3 start, Vector3 end, Color color, float zoomFactor = 1.0f)
{
PrimitiveVertex vStart = new PrimitiveVertex();
PrimitiveVertex vEnd = new PrimitiveVertex();
float lineSize = 4 * zoomFactor;
float lineLength = (end - start).Length;
int linesToDraw = (int)(lineLength / lineSize) / 2;
float emptySpace = (lineLength - linesToDraw * lineSize) / (linesToDraw + 1);
Vector3 lineDir = (end - start);
lineDir.Normalize();
// set colors
vStart.color = new Vector3(color.R / 255.0f, color.G / 255.0f, color.B / 255.0f);
vEnd.color = new Vector3(color.R / 255.0f, color.G / 255.0f, color.B / 255.0f);
start = start + lineDir * emptySpace;
for (int i = 0; i < linesToDraw; i++)
{
vStart.position = start;
vEnd.position = start + lineDir * lineSize;
start = vEnd.position + lineDir * emptySpace;
lineBuffer.Add(vStart);
lineBuffer.Add(vEnd);
}
}
private void DrawNormalLine(Vector3 start, Vector3 end, Color color)
{
PrimitiveVertex vStart = new PrimitiveVertex();
PrimitiveVertex vEnd = new PrimitiveVertex();
// set positions
vStart.position = start;
vEnd.position = end;
// set colors
vStart.color = new Vector3(color.R / 255.0f, color.G / 255.0f, color.B / 255.0f);
vEnd.color = new Vector3(color.R / 255.0f, color.G / 255.0f, color.B / 255.0f);
lineBuffer.Add(vStart);
lineBuffer.Add(vEnd);
}
public void DrawSolidCircle(Vector3 bottomLeft, Vector3 bottomRight, Vector3 topRight, Vector3 topLeft, Color color)
{
if (!beginEndPair)
{
// Begin must be called before end
return;
}
Vector3 position = (topLeft + bottomRight) * 0.5f;
float radius = (topLeft - topRight).Length / 2.0f;
Vector2 dimensions = new Vector2
{
X = radius,
Y = radius
};
Vector3 hBase = (topRight - topLeft).Normalized();
Vector3 vBase = (topLeft - bottomLeft).Normalized();
int piePieces = 12;
float degToRad = (float)(Math.PI / 180.0);
float radPiece = (360.0f / piePieces * degToRad);
Vector3 lastVec = position + hBase * dimensions.X;
PrimitiveVertex vert = new PrimitiveVertex {
color = new Vector3(color.R, color.G, color.B)
};
for (int i = 1; i <= piePieces; i++)
{
vert.position = position;
polygonBuffer.Add(vert);
vert.position = lastVec;
polygonBuffer.Add(vert);
float cos = (float)Math.Cos(i * radPiece) * dimensions.X;
float sin = (float)Math.Sin(i * radPiece) * dimensions.Y;
vert.position = position + hBase * cos + vBase * sin;
polygonBuffer.Add(vert);
lastVec = vert.position;
}
}
public void DrawSolidRectangle(Vector3 bottomLeft, Vector3 bottomRight, Vector3 topRight, Vector3 topLeft, Color color)
{
if (!beginEndPair)
{
// Begin must be called before end
return;
}
PrimitiveVertex a = new PrimitiveVertex();
PrimitiveVertex b = new PrimitiveVertex();
PrimitiveVertex c = new PrimitiveVertex();
PrimitiveVertex d = new PrimitiveVertex();
Vector3 rectangleColor = new Vector3(color.R / 255.0f, color.G / 255.0f, color.B / 255.0f);
a.color = rectangleColor;
b.color = rectangleColor;
c.color = rectangleColor;
d.color = rectangleColor;
// counter clockwise
a.position = bottomLeft;
b.position = bottomRight;
c.position = topRight;
d.position = topLeft;
// create first polygon
polygonBuffer.Add(a);
polygonBuffer.Add(c);
polygonBuffer.Add(d);
// create second polygon
polygonBuffer.Add(a);
polygonBuffer.Add(b);
polygonBuffer.Add(c);
}
