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move arc drawing code into ShapeDraw, remove vertex count argument

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Xevion
2020-06-05 18:16:25 -05:00
parent a79daf7ed7
commit 4b10722a48
2 changed files with 27 additions and 39 deletions
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37
Boids/Assets/Scripts/Boid.cs
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@@ -261,41 +261,4 @@ public class Boid : MonoBehaviour {
// Add points to LineRenderer
line.SetPositions(points);
}
private void DrawArcCentered(float radius, float centerAngle, float angleWidth, string childName) {
float half = angleWidth / 2f;
DrawArc(radius, Util.AddAngle(centerAngle, -half), Util.AddAngle(centerAngle, half), childName);
}
private void DrawArc(float radius, float from, float to, string childName) {
// Create a new child GameObject to hold the LineRenderer Component
var child = new GameObject(childName);
child.transform.SetParent(transform);
child.transform.position = transform.position;
var line = child.AddComponent<LineRenderer>();
int vertexCount = _parent.arcVertexCount != -1 ? _parent.arcVertexCount : (int) Mathf.Abs(from - to) * 2;
// Setup LineRenderer properties
line.useWorldSpace = false;
line.startWidth = _parent.circleWidth;
line.endWidth = _parent.circleWidth;
line.positionCount = vertexCount + 1 + 2;
// Calculate points for circle
var pointCount = vertexCount + 1;
var points = new Vector3[pointCount + 2];
for (int i = 0; i < pointCount; i++) {
// Magic '180 - angle'
var rad = Mathf.Deg2Rad * Mathf.LerpAngle(from, to, i / (float) pointCount);
points[i + 1] = new Vector3(Mathf.Sin(rad), Mathf.Cos(rad), 0) * radius;
}
points[0] = new Vector3(0, 0, 0);
points[points.Length - 1] = points[0];
// Add points to LineRenderer
line.SetPositions(points);
}
}

29
Boids/Assets/Scripts/ShapeDraw.cs
View File

@@ -4,6 +4,12 @@
/// A simple static utility class that assists with drawing shapes using the <c>LineRenderer</c> class.
/// </summary>
public class ShapeDraw {
public static float CircleWidth = 1f;
public static float ArcWidth = 1f;
public static int CircleVertexCount = 360;
public static int ArcVertexCount = 77;
/// <summary>
/// Draw a Arc aimed straight up with a certain angle width and radius.
/// Use <see cref="RotateLineRenderer"/> to point the Arc at a certain direction.
@@ -11,10 +17,29 @@ public class ShapeDraw {
/// <param name="lineRenderer">The LineRenderer to draw the Arc upon.</param>
/// <param name="angle">Angle of the Arc</param>
/// <param name="radius">Radius of the Arc</param>
/// <param name="vertexCount">Number of vertexes to be used in the arc, clamp minimum 3 </param>
/// <seealso cref="RotateLineRenderer"/>
public static void DrawArc(LineRenderer lineRenderer, float angle, float radius, int vertexCount) {
public static void DrawArc(LineRenderer lineRenderer, float angle, float radius) {
// Setup LineRenderer properties
lineRenderer.useWorldSpace = false;
lineRenderer.startWidth = ArcWidth;
lineRenderer.endWidth = ArcWidth;
lineRenderer.positionCount = ArcVertexCount + 1 + 2;
// Calculate points for circle
var pointCount = ArcVertexCount + 1;
var points = new Vector3[pointCount + 2];
for (int i = 0; i < pointCount; i++) {
// Magic '180 - angle'
var rad = Mathf.Deg2Rad * Mathf.LerpAngle(0, angle, i / (float) pointCount);
points[i + 1] = new Vector3(Mathf.Sin(rad), Mathf.Cos(rad), 0) * radius;
}
points[0] = new Vector3(0, 0, 0);
points[points.Length - 1] = points[0];
// Add points to LineRenderer
lineRenderer.SetPositions(points);
}
/// <summary>