Flatkit 추가 및 설정

Assets/FlatKit/Demos/[Demo] Desert/Scripts/BillboardLineRendererCircle.cs

@@ -0,0 +1,52 @@
+using UnityEngine;
+
+public class BillboardLineRendererCircle : MonoBehaviour {
+    public Color color = Color.black;
+    public float width = 1f;
+    public int numSegments = 50;
+    public float radius = 0.5f;
+
+    private LineRenderer _lineRenderer;
+
+    void Start() {
+        _lineRenderer = gameObject.GetComponent<LineRenderer>();
+        if (_lineRenderer != null) return;
+
+        // Initialize line renderer.
+        _lineRenderer = gameObject.AddComponent<LineRenderer>();
+        _lineRenderer.materials = new[] {
+            new Material(Shader.Find("Universal Render Pipeline/Unlit")) { color = color }
+        };
+        _lineRenderer.startWidth = width * 0.01f;
+        _lineRenderer.endWidth = width * 0.01f;
+        _lineRenderer.positionCount = numSegments + 1;
+        _lineRenderer.useWorldSpace = false;
+
+        // Create points.
+        float deltaTheta = (float)(2.0 * Mathf.PI) / numSegments;
+        float theta = 0f;
+
+        for (int i = 0; i < numSegments + 1; i++) {
+            float x = Mathf.Cos(theta);
+            float y = Mathf.Sin(theta);
+            Vector3 pos = new Vector3(x, y, 0);
+            _lineRenderer.SetPosition(i, pos * radius);
+            theta += deltaTheta;
+        }
+    }
+
+    [ContextMenu("Reinitialize")]
+    private void Reinitialize() {
+        if (_lineRenderer != null) {
+            DestroyImmediate(_lineRenderer);
+        }
+
+        Start();
+        Update();
+    }
+
+    private void Update() {
+        transform.LookAt(Camera.main.transform);
+        transform.Rotate(0, 180, 0);
+    }
+}