void CardinalSpline()
{
var splinePoints = new List <CCPoint> ();
splinePoints.Add(new CCPoint(0, 0));
splinePoints.Add(new CCPoint(50, 70));
splinePoints.Add(new CCPoint(0, 140));
splinePoints.Add(new CCPoint(100, 210));
drawNode.DrawCardinalSpline(
config: splinePoints,
tension: 0,
segments: 64,
color: CCColor4B.Red);
}
public override void OnEnter()
{
base.OnEnter();
CCSize windowSize = Layer.VisibleBoundsWorldspace.Size;
CCDrawNode draw = new CCDrawNode();
AddChild(draw, 10);
var s = windowSize;
// Draw 10 circles
for (int i = 0; i < 10; i++)
{
draw.DrawSolidCircle(s.Center, 10 * (10 - i),
new CCColor4F(CCRandom.Float_0_1(), CCRandom.Float_0_1(), CCRandom.Float_0_1(), 1));
}
// Draw polygons
CCPoint[] points = new CCPoint[]
{
new CCPoint(windowSize.Height / 4, 0),
new CCPoint(windowSize.Width, windowSize.Height / 5),
new CCPoint(windowSize.Width / 3 * 2, windowSize.Height)
};
draw.DrawPolygon(points, points.Length, new CCColor4F(1.0f, 0, 0, 0.5f), 4, new CCColor4F(0, 0, 1, 1));
// star poly (triggers buggs)
{
const float o = 80;
const float w = 20;
const float h = 50;
CCPoint[] star = new CCPoint[]
{
new CCPoint(o + w, o - h), new CCPoint(o + w * 2, o), // lower spike
new CCPoint(o + w * 2 + h, o + w), new CCPoint(o + w * 2, o + w * 2), // right spike
};
draw.DrawPolygon(star, star.Length, new CCColor4F(1, 0, 0, 0.5f), 1, new CCColor4F(0, 0, 1, 1));
}
// star poly (doesn't trigger bug... order is important un tesselation is supported.
{
const float o = 180;
const float w = 20;
const float h = 50;
var star = new CCPoint[]
{
new CCPoint(o, o), new CCPoint(o + w, o - h), new CCPoint(o + w * 2, o), // lower spike
new CCPoint(o + w * 2 + h, o + w), new CCPoint(o + w * 2, o + w * 2), // right spike
new CCPoint(o + w, o + w * 2 + h), new CCPoint(o, o + w * 2), // top spike
new CCPoint(o - h, o + w), // left spike
};
draw.DrawPolygon(star, star.Length, new CCColor4F(1, 0, 0, 0.5f), 1, new CCColor4F(0, 0, 1, 1));
}
// Draw segment
draw.DrawLine(new CCPoint(20, windowSize.Height), new CCPoint(20, windowSize.Height / 2), 10, new CCColor4F(0, 1, 0, 1), CCLineCap.Round);
draw.DrawLine(new CCPoint(10, windowSize.Height / 2), new CCPoint(windowSize.Width / 2, windowSize.Height / 2), 40,
new CCColor4F(1, 0, 1, 0.5f), CCLineCap.Round);
CCSize size = Layer.VisibleBoundsWorldspace.Size;
var visibleRect = VisibleBoundsWorldspace;
// draw quad bezier path
draw.DrawQuadBezier(new CCPoint(0, size.Height),
visibleRect.Center,
(CCPoint)visibleRect.Size,
50, 3,
new CCColor4B(255, 0, 255, 255));
// draw cubic bezier path
draw.DrawCubicBezier(visibleRect.Center,
new CCPoint(size.Width / 2 + 30, size.Height / 2 + 50),
new CCPoint(size.Width / 2 + 60, size.Height / 2 - 50),
new CCPoint(size.Width, size.Height / 2), 100, 2, CCColor4B.Green);
// draw an ellipse within rectangular region
draw.DrawEllipse(new CCRect(100, 300, 100, 200), 8, CCColor4B.AliceBlue);
var splinePoints = new List <CCPoint>();
splinePoints.Add(new CCPoint(0, 0));
splinePoints.Add(new CCPoint(50, 70));
splinePoints.Add(new CCPoint(0, 140));
splinePoints.Add(new CCPoint(100, 210));
splinePoints.Add(new CCPoint(0, 280));
splinePoints.Add(new CCPoint(150, 350));
int numberOfSegments = 64;
float tension = .05f;
draw.DrawCardinalSpline(splinePoints, tension, numberOfSegments);
draw.DrawSolidArc(
pos: new CCPoint(350, windowSize.Height * 0.75f),
radius: 100,
startAngle: CCMathHelper.ToRadians(45),
sweepAngle: CCMathHelper.Pi / 2, // this is in radians, clockwise
color: CCColor4B.Aquamarine);
}
