Points around a circumference C#
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by
Lautaro
on Game Development
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Published on 2012-12-15T07:42:06Z
Indexed on
2012/12/15
11:24 UTC
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c#
|trigonometry
Im trying to get a list of vectors that go around a circle, but i keep getting the circle to go around several times. I want one circel and the dots to be placed along its circumference. I want the first dot to start at 0 and the last dot to end just before 360. Also i need to be able to calculate the spacing by the ammount of points.
List<Vector2> pointsInPath = new List<Vector2>();
private int ammountOfPoints = 5;
private int blobbSize = 200;
private Vector2 topLeft = new Vector2(100, 100);
private Vector2 blobbCenter;
private int endAngle = 50;
private int angleIncrementation;
public Blobb()
{
blobbCenter = new Vector2(blobbSize / 2, blobbSize / 2) + topLeft;
angleIncrementation = endAngle / ammountOfPoints;
for (int i = 0; i < ammountOfPoints; i++)
{
pointsInPath.Add(getPointByAngle(i * angleIncrementation, 100, blobbCenter));
// pointsInPath.Add(getPointByAngle(i * angleIncrementation, blobbSize / 2, blobbCenter));
}
}
private Vector2 getPointByAngle(float angle, float distance, Vector2 centre)
{
return new Vector2((float)(distance * Math.Cos(angle) ), (float)(distance * Math.Sin(angle))) + centre ;
}
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