public PolyRenderShape(Vector2[] points, float thickness, Color color, PolyCapStyle polyCapStyle = PolyCapStyle.None, bool closed = false)
{
thickness = (CVars.Get<bool>("graphics_feathering")) ? thickness : 1.5f * thickness;
Color[] colors = new Color[points.Length];
for(int i = 0; i < colors.Length; i++)
{
colors[i] = color;
}
Init(points, thickness, colors, polyCapStyle, closed);
}
private void Init(Vector2[] points, float thickness, Color[] colors, PolyCapStyle polyCapStyle = PolyCapStyle.None, bool closed = false)
{
bool feathering = CVars.Get<bool>("graphics_feathering");
float feather = CVars.Get<float>("graphics_feathering_width");
thickness = feathering ? thickness : 1.5f * thickness;
int count = points.Length;
if(closed)
{
count++;
}
switch(polyCapStyle)
{
case PolyCapStyle.Filled:
_verts = new VertexPositionColor[(count - 1) * (feathering ? 27 : 9)];
break;
case PolyCapStyle.AwayFromCenter:
default:
_verts = new VertexPositionColor[(count - 1) * (feathering ? 18 : 6)];
break;
}
int v = 0;
for(int i = 1; i < points.Length + (closed ? 1 : 0); i++)
{
Vector2 p1 = points[i - 1];
Color c1 = colors[i - 1];
Vector2 p2;
Color c2;
if (i >= points.Length) {
p2 = points[0];
c2 = colors[0];
} else
{
p2 = points[i];
c2 = colors[i];
}
Vector2 p2p1 = p2 - p1;
Vector2 d = new Vector2(-p2p1.Y, p2p1.X);
d.Normalize();
if (polyCapStyle == PolyCapStyle.AwayFromCenter)
{
Vector2 oToP1 = new Vector2(p1.X, p1.Y);
oToP1.Normalize();
Vector2 oToP2 = new Vector2(p2.X, p2.Y);
oToP2.Normalize();
float p1Thickness = thickness / Math.Abs(Vector2.Dot(d, oToP1));
float p2Thickness = thickness / Math.Abs(Vector2.Dot(d, oToP2));
Vector2 v1b = p1 - p1Thickness / 2 * oToP1;
Vector2 v1t = p1 + p1Thickness / 2 * oToP1;
Vector2 v2b = p2 - p2Thickness / 2 * oToP2;
Vector2 v2t = p2 + p2Thickness / 2 * oToP2;
if (MathHelper.WrapAngle((float)(Math.Atan2(p2.Y, p2.X) - Math.Atan2(p1.Y, p1.X))) > 0)
{
_verts[v++] = new VertexPositionColor(new Vector3(v1b.X, v1b.Y, 0), c1);
_verts[v++] = new VertexPositionColor(new Vector3(v1t.X, v1t.Y, 0), c1);
_verts[v++] = new VertexPositionColor(new Vector3(v2t.X, v2t.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v1b.X, v1b.Y, 0), c1);
_verts[v++] = new VertexPositionColor(new Vector3(v2t.X, v2t.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v2b.X, v2b.Y, 0), c2);
}
else
{
_verts[v++] = new VertexPositionColor(new Vector3(v2t.X, v2t.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v1t.X, v1t.Y, 0), c1);
_verts[v++] = new VertexPositionColor(new Vector3(v1b.X, v1b.Y, 0), c1);
_verts[v++] = new VertexPositionColor(new Vector3(v2b.X, v2b.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v2t.X, v2t.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v1b.X, v1b.Y, 0), c1);
}
continue;
}
{ // Empty
// These are outside because they are needed for end cap feathering
Vector2 v2b = p2 - d * thickness / 2;
Vector2 v2t = p2 + d * thickness / 2;
Vector2 v1b = p1 - d * thickness / 2;
Vector2 v1t = p1 + d * thickness / 2;
_verts[v++] = new VertexPositionColor(new Vector3(v2t.X, v2t.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v1t.X, v1t.Y, 0), c1);
_verts[v++] = new VertexPositionColor(new Vector3(v1b.X, v1b.Y, 0), c1);
_verts[v++] = new VertexPositionColor(new Vector3(v2b.X, v2b.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v2t.X, v2t.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v1b.X, v1b.Y, 0), c1);
Vector2 v2tf = v2t + d * feather;
Vector2 v2bf = v2b - d * feather;
Color featherColor1 = new Color(c1, 0);
Color featherColor2 = new Color(c2, 0);
//Color featherColor = Color.HotPink;
if (feathering)
{
Vector2 v1tf = v1t + d * feather;
Vector2 v1bf = v1b - d * feather;
// Top feather
_verts[v++] = new VertexPositionColor(new Vector3(v1t.X, v1t.Y, 0), c1);
_verts[v++] = new VertexPositionColor(new Vector3(v2t.X, v2t.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v2tf.X, v2tf.Y, 0), featherColor2);
_verts[v++] = new VertexPositionColor(new Vector3(v1t.X, v1t.Y, 0), c1);
_verts[v++] = new VertexPositionColor(new Vector3(v2tf.X, v2tf.Y, 0), featherColor2);
_verts[v++] = new VertexPositionColor(new Vector3(v1tf.X, v1tf.Y, 0), featherColor1);
// Bottom feather
_verts[v++] = new VertexPositionColor(new Vector3(v1b.X, v1b.Y, 0), c1);
_verts[v++] = new VertexPositionColor(new Vector3(v2bf.X, v2bf.Y, 0), featherColor2);
_verts[v++] = new VertexPositionColor(new Vector3(v2b.X, v2b.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v1b.X, v1b.Y, 0), c1);
_verts[v++] = new VertexPositionColor(new Vector3(v1bf.X, v1bf.Y, 0), featherColor1);
_verts[v++] = new VertexPositionColor(new Vector3(v2bf.X, v2bf.Y, 0), featherColor2);
}
if (polyCapStyle == PolyCapStyle.Filled)
{
int j;
if (i >= points.Length)
{
j = 0;
}
else
{
j = i;
}
Vector2 p3 = points[j];
Color c3 = colors[j];
Vector2 p4;
if(j == points.Length - 1)
{
if(!closed)
{
continue;
}
p4 = points[0];
} else
{
p4 = points[j + 1];
}
Vector2 p4p3 = p4 - p3;
Vector2 d2 = new Vector2(-p4p3.Y, p4p3.X);
d2.Normalize();
Vector2 v3b = p3 - d2 * thickness / 2;
Vector2 v3t = p3 + d2 * thickness / 2;
Color featherColor3 = new Color(c3, 0);
Color c23;
{
Vector4 c2_vec = c2.ToVector4();
Vector4 c3_vec = c3.ToVector4();
Vector4 c23_vec = c2_vec * c2_vec + c3_vec * c3_vec;
c23_vec.X = (float)Math.Sqrt(c23_vec.X);
c23_vec.Y = (float)Math.Sqrt(c23_vec.Y);
c23_vec.Z = (float)Math.Sqrt(c23_vec.Z);
c23_vec.W = (float)Math.Sqrt(c23_vec.W);
c23 = new Color(c23_vec);
}
// Check which to fill in - top or bottom
Vector2 top = v3t - v2t;
Vector2 midpoint = p2;
if (Vector2.Dot(top, p2p1) > 0)
{
_verts[v++] = new VertexPositionColor(new Vector3(v3t.X, v3t.Y, 0), c3);
_verts[v++] = new VertexPositionColor(new Vector3(v2t.X, v2t.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(midpoint.X, midpoint.Y, 0), c23);
if (feathering)
{
Vector2 v3tf = v3t + d2 * feather;
_verts[v++] = new VertexPositionColor(new Vector3(v3tf.X, v3tf.Y, 0), featherColor3);
_verts[v++] = new VertexPositionColor(new Vector3(v2tf.X, v2tf.Y, 0), featherColor2);
_verts[v++] = new VertexPositionColor(new Vector3(v2t.X, v2t.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v3tf.X, v3tf.Y, 0), featherColor3);
_verts[v++] = new VertexPositionColor(new Vector3(v2t.X, v2t.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v3t.X, v3t.Y, 0), c3);
}
} else
{
_verts[v++] = new VertexPositionColor(new Vector3(v2b.X, v2b.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v3b.X, v3b.Y, 0), c3);
_verts[v++] = new VertexPositionColor(new Vector3(midpoint.X, midpoint.Y, 0), c23);
if (feathering)
{
Vector2 v3bf = v3b - d2 * feather;
_verts[v++] = new VertexPositionColor(new Vector3(v2bf.X, v2bf.Y, 0), featherColor2);
_verts[v++] = new VertexPositionColor(new Vector3(v3bf.X, v3bf.Y, 0), featherColor3);
_verts[v++] = new VertexPositionColor(new Vector3(v2b.X, v2b.Y, 0), c2);
_verts[v++] = new VertexPositionColor(new Vector3(v3bf.X, v3bf.Y, 0), featherColor3);
_verts[v++] = new VertexPositionColor(new Vector3(v3b.X, v3b.Y, 0), c3);
_verts[v++] = new VertexPositionColor(new Vector3(v2b.X, v2b.Y, 0), c2);
}
}
}
}
}
}
public PolyRenderShape(Vector2[] points, float thickness, Color[] colors, PolyCapStyle polyCapStyle = PolyCapStyle.None, bool closed = false)
{
Init(points, thickness, colors, polyCapStyle, closed);
}