You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
110 lines
3.2 KiB
110 lines
3.2 KiB
namespace VRTK
|
|
{
|
|
using UnityEngine;
|
|
using UnityEngine.UI;
|
|
[ExecuteInEditMode]
|
|
public class UICircle : Graphic
|
|
{
|
|
[Range(0, 100)]
|
|
public int fillPercent;
|
|
public bool fill = true;
|
|
public int thickness = 5;
|
|
[Range(0, 360)]
|
|
public int segments = 360;
|
|
|
|
[SerializeField]
|
|
protected Texture setTexture;
|
|
|
|
public override Texture mainTexture
|
|
{
|
|
get
|
|
{
|
|
return (setTexture == null ? s_WhiteTexture : setTexture);
|
|
}
|
|
}
|
|
|
|
// Texture to be used.
|
|
public Texture texture
|
|
{
|
|
get
|
|
{
|
|
return setTexture;
|
|
}
|
|
set
|
|
{
|
|
if (setTexture == value)
|
|
{
|
|
return;
|
|
}
|
|
setTexture = value;
|
|
SetVerticesDirty();
|
|
SetMaterialDirty();
|
|
}
|
|
}
|
|
|
|
protected virtual void Update()
|
|
{
|
|
thickness = (int)Mathf.Clamp(thickness, 0, rectTransform.rect.width / 2);
|
|
}
|
|
|
|
protected virtual UIVertex[] SetVbo(Vector2[] vertices, Vector2[] uvs)
|
|
{
|
|
UIVertex[] vbo = new UIVertex[4];
|
|
for (int i = 0; i < vertices.Length; i++)
|
|
{
|
|
UIVertex vert = UIVertex.simpleVert;
|
|
vert.color = color;
|
|
vert.position = vertices[i];
|
|
vert.uv0 = uvs[i];
|
|
vbo[i] = vert;
|
|
}
|
|
return vbo;
|
|
}
|
|
|
|
protected override void OnPopulateMesh(VertexHelper vh)
|
|
{
|
|
float outer = -rectTransform.pivot.x * rectTransform.rect.width;
|
|
float inner = -rectTransform.pivot.x * rectTransform.rect.width + thickness;
|
|
vh.Clear();
|
|
|
|
Vector2 prevX = Vector2.zero;
|
|
Vector2 prevY = Vector2.zero;
|
|
Vector2 uv0 = new Vector2(0, 0);
|
|
Vector2 uv1 = new Vector2(0, 1);
|
|
Vector2 uv2 = new Vector2(1, 1);
|
|
Vector2 uv3 = new Vector2(1, 0);
|
|
Vector2 pos0;
|
|
Vector2 pos1;
|
|
Vector2 pos2;
|
|
Vector2 pos3;
|
|
float f = (fillPercent / 100f);
|
|
float degrees = 360f / segments;
|
|
int fa = (int)((segments + 1) * f);
|
|
for (int i = -1 - (fa / 2); i < fa / 2 + 1; i++)
|
|
{
|
|
float rad = Mathf.Deg2Rad * (i * degrees);
|
|
float c = Mathf.Cos(rad);
|
|
float s = Mathf.Sin(rad);
|
|
uv0 = new Vector2(0, 1);
|
|
uv1 = new Vector2(1, 1);
|
|
uv2 = new Vector2(1, 0);
|
|
uv3 = new Vector2(0, 0);
|
|
pos0 = prevX;
|
|
pos1 = new Vector2(outer * c, outer * s);
|
|
if (fill)
|
|
{
|
|
pos2 = Vector2.zero;
|
|
pos3 = Vector2.zero;
|
|
}
|
|
else
|
|
{
|
|
pos2 = new Vector2(inner * c, inner * s);
|
|
pos3 = prevY;
|
|
}
|
|
prevX = pos1;
|
|
prevY = pos2;
|
|
vh.AddUIVertexQuad(SetVbo(new[] { pos0, pos1, pos2, pos3 }, new[] { uv0, uv1, uv2, uv3 }));
|
|
}
|
|
}
|
|
}
|
|
}
|