public void DrawLine(CCPoint from, CCPoint to, float lineWidth, CCColor4B color, CCLineCap lineCap = CCLineCap.Butt)
{
System.Diagnostics.Debug.Assert(lineWidth >= 0, "Invalid value specified for lineWidth : value is negative");
if (lineWidth <= 0)
return;
var cl = color;
var a = from;
var b = to;
var normal = CCPoint.Normalize(a - b);
if (lineCap == CCLineCap.Square)
{
var nr = normal * lineWidth;
a += nr;
b -= nr;
}
var n = CCPoint.PerpendicularCCW(normal);
var nw = n * lineWidth;
var v0 = b - nw;
var v1 = b + nw;
var v2 = a - nw;
var v3 = a + nw;
// Triangles from beginning to end
AddTriangleVertex(new CCV3F_C4B(v1, cl));
AddTriangleVertex(new CCV3F_C4B(v2, cl));
AddTriangleVertex(new CCV3F_C4B(v0, cl));
AddTriangleVertex(new CCV3F_C4B(v1, cl));
AddTriangleVertex(new CCV3F_C4B(v2, cl));
AddTriangleVertex(new CCV3F_C4B(v3, cl));
if (lineCap == CCLineCap.Round)
{
var mb = (float)Math.Atan2(v1.Y - b.Y, v1.X - b.X);
var ma = (float)Math.Atan2(v2.Y - a.Y, v2.X - a.X);
// Draw rounded line caps
DrawSolidArc(a, lineWidth, -ma, -MathHelper.Pi, color);
DrawSolidArc(b, lineWidth, -mb, -MathHelper.Pi, color);
}
dirty = true;
}
public void DrawLine(CCPoint from, CCPoint to, float lineWidth = 1, CCLineCap lineCap = CCLineCap.Butt)
{
DrawLine(from, to, lineWidth, new CCColor4B(Color.R, Color.G, Color.B, Opacity));
}
public void DrawLine(CCPoint from, CCPoint to, CCColor4B color, CCLineCap lineCap = CCLineCap.Butt)
{
DrawLine(from, to, 1, color);
}
public void DrawSegment(CCPoint from, CCPoint to, float radius, CCColor4F color, CCLineCap lineCap = CCLineCap.Round)
{
DrawLine(from, to, radius, (CCColor4B)color, lineCap);
}
public void DrawLine(CCPoint from, CCPoint to, float lineWidth, CCColor4B color, CCLineCap lineCap = CCLineCap.Butt)
{
System.Diagnostics.Debug.Assert(lineWidth >= 0, "Invalid value specified for lineWidth : value is negative");
if (lineWidth <= 0)
{
return;
}
var cl = color;
var a = from;
var b = to;
var normal = CCPoint.Normalize(a - b);
if (lineCap == CCLineCap.Square)
{
var nr = normal * lineWidth;
a += nr;
b -= nr;
}
var n = CCPoint.PerpendicularCCW(normal);
var nw = n * lineWidth;
var v0 = b - nw;
var v1 = b + nw;
var v2 = a - nw;
var v3 = a + nw;
// Triangles from beginning to end
AddTriangleVertex(new CCV3F_C4B(v1, cl));
AddTriangleVertex(new CCV3F_C4B(v2, cl));
AddTriangleVertex(new CCV3F_C4B(v0, cl));
AddTriangleVertex(new CCV3F_C4B(v1, cl));
AddTriangleVertex(new CCV3F_C4B(v2, cl));
AddTriangleVertex(new CCV3F_C4B(v3, cl));
if (lineCap == CCLineCap.Round)
{
var mb = (float)Math.Atan2(v1.Y - b.Y, v1.X - b.X);
var ma = (float)Math.Atan2(v2.Y - a.Y, v2.X - a.X);
// Draw rounded line caps
DrawSolidArc(a, lineWidth, -ma, -MathHelper.Pi, color);
DrawSolidArc(b, lineWidth, -mb, -MathHelper.Pi, color);
}
dirty = true;
}
public void DrawLine(CCPoint from, CCPoint to, CCColor4B color, CCLineCap lineCap = CCLineCap.Butt)
{
DrawLine(from, to, 1, color);
}
public void DrawLine(CCPoint from, CCPoint to, float lineWidth = 1, CCLineCap lineCap = CCLineCap.Butt)
{
DrawLine(from, to, lineWidth, new CCColor4B(Color.R, Color.G, Color.B, Opacity));
}
public void DrawSegment(CCPoint from, CCPoint to, float radius, CCColor4F color, CCLineCap lineCap = CCLineCap.Round)
{
DrawLine(from, to, radius, (CCColor4B)color, lineCap);
}
