initial commit

Assets/Scripts/Lesson_1/DrawDistanceLine.cs

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+using UnityEngine;
+
+[RequireComponent(typeof(LineRenderer))]
+public class DrawDistanceLine : MonoBehaviour
+{
+    private float radiusX;
+    private float radiusZ;
+
+    private float startAngle;
+    private float endAngle;
+
+    [Header("ßê³ñòü äóãè")]
+    public int segments = 50;
+
+    [Header("Öåíòð äóãè")]
+    private Vector3 center;
+
+    [Header("²íôîðìàö³ÿ (ò³ëüêè äëÿ ÷èòàííÿ)")]
+    [SerializeField] private float arcLength = 0f;
+
+    private LineRenderer lineRenderer;
+
+    void Start()
+    {
+        radiusX = GetComponent<RunlinePlacer>().radiusX;
+        radiusZ = GetComponent<RunlinePlacer>().radiusZ;
+        center = GetComponent<RunlinePlacer>().center;
+
+        lineRenderer = GetComponent<LineRenderer>();
+
+        lineRenderer.startColor = new Color(1f, 1f, 1f); 
+        lineRenderer.endColor = new Color(1f, 1f, 1f);
+        lineRenderer.startWidth = 1f;
+        lineRenderer.endWidth = 1f;
+        lineRenderer.useWorldSpace = true;
+        lineRenderer.material = new Material(Shader.Find("Sprites/Default"));
+    }
+
+    public void DrawDistanceArc()
+    {
+        
+        startAngle = GetComponent<RunlinePlacer>().GetStartLineAngle();
+        endAngle = GetComponent<RunlinePlacer>().GetEndLineAngle();
+
+        if (startAngle > endAngle) endAngle += 2 * Mathf.PI;
+
+        lineRenderer.positionCount = segments + 1;
+        float angleStep = (endAngle - startAngle) / segments;
+
+        Vector3 prevPos = Vector3.zero;
+        arcLength = 0f;
+
+        for (int i = 0; i <= segments; i++)
+        {
+            float angle = startAngle + i * angleStep;
+            float x = Mathf.Cos(angle) * radiusX;
+            float z = Mathf.Sin(angle) * radiusZ;
+            lineRenderer.SetPosition(i, new Vector3(x, 0f, z));
+            Vector3 pos = new Vector3(x, 0f, z) + center;
+
+            if (i > 0)
+                arcLength += Vector3.Distance(pos, prevPos);
+
+            prevPos = pos;
+        }
+        
+        GameObject startLine = GetComponent<RunlinePlacer>().GetStartLineGameObject();
+        startLine.GetComponent<LineData>().SetDistanceText((int)arcLength);
+        ClearArc();
+    }
+    public void ClearArc()
+    {
+        if (lineRenderer != null)
+        {
+            lineRenderer.positionCount = 0;
+            arcLength = 0f;
+        }
+    }
+}