如何使用线渲染器绘制山峰

Question

我试图使用线渲染器在2d中使用中点平分法绘制山峰。所以我的想法是在山的左半部分然后在右半部分使用中点平分算法。但是结果却没有做到我想要的。这座山看起来不像是倒抛物线。

以下是代码：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
[ExecuteInEditMode]
public class DrawMountain : MonoBehaviour
{




    public Color c1 = Color.yellow;
    public Color c2 = Color.red;    
    public int lengthOfLeftLineRenderer = 10;
    public int lengthOfRightLineRenderer = 10;


    float start_x_left = -200f;
    float end_x_left = -100f;
    float start_x_right = -100f;
    float end_x_right = 0f;



    // Start is called before the first frame update
    void Start()
    {
        float[] heightsLeft = new float[10];
        float[] heightsRight = new float[10];
        LineRenderer lineRenderer = gameObject.AddComponent<LineRenderer>();
        lineRenderer.material = new Material(Shader.Find("Sprites/Default"));
        lineRenderer.widthMultiplier = 0.5f;
        lineRenderer.positionCount = lengthOfLeftLineRenderer;

        // A simple 2 color gradient with a fixed alpha of 1.0f.
    /*    float alpha = 1.0f;
        Gradient gradient = new Gradient();
        gradient.SetKeys(
            new GradientColorKey[] { new GradientColorKey(c1, 0.0f), new GradientColorKey(c2, 1.0f) },
            new GradientAlphaKey[] { new GradientAlphaKey(alpha, 0.0f), new GradientAlphaKey(alpha, 1.0f) }
        );
        lineRenderer.colorGradient = gradient; */

        int left = 0;
        int right = 9;
        heightsLeft[left] = -77;
        heightsLeft[right] = 0;
        currentVertex = startVertex;
        MidPointBisection(left, right,heightsLeft);

        heightsRight[left] = 0;
        heightsRight[right] = -77;
        MidPointBisection(left, right,heightsRight);
        DrawLine(heightsLeft, heightsRight);
    }





    void MidPointBisection(int left, int right, float[] heights)
    {
        int middle = (left + right) / 2;
        if (middle == left) return;

        heights[middle] = (heights[left] + heights[right]) / 2;

        MidPointBisection(left, middle,heights);
        MidPointBisection(middle, right,heights);
    }

    void DrawLine(float[] heightsLeft, float[] heightsRight)
    {

        LineRenderer lineRenderer = GetComponent<LineRenderer>();
        var t = Time.time;
        //lineRenderer.SetPosition(0, new Vector3(start_x + i * 5f, heights[i], 0.0f));
        for (int i = 0; i < lengthOfLeftLineRenderer; i++)
        {
            lineRenderer.SetPosition(i, new Vector3(start_x_left +i*10f, heightsLeft[i], 0.0f));
        }

        for (int i = 0; i < lengthOfRightLineRenderer; i++)
        {
            lineRenderer.SetPosition(i, new Vector3(start_x_right + i * 10f, heightsRight[i], 0.0f));
        }


    }
}