// Decompiled with JetBrains decompiler
// Type: Terraria.GameContent.Generation.ShapeRunner
// Assembly: Terraria, Version=1.4.0.5, Culture=neutral, PublicKeyToken=null
// MVID: 67F9E73E-0A81-4937-A22C-5515CD405A83
// Assembly location: C:\Users\mikeyisbaeyt\Downloads\depotdownloader-2.4.5\depots\105601\6707058\Terraria.exe

using Microsoft.Xna.Framework;
using System;
using Terraria.WorldBuilding;

namespace Terraria.GameContent.Generation
{
  public class ShapeRunner : GenShape
  {
    private float _startStrength;
    private int _steps;
    private Vector2 _startVelocity;

    public ShapeRunner(float strength, int steps, Vector2 velocity)
    {
      this._startStrength = strength;
      this._steps = steps;
      this._startVelocity = velocity;
    }

    public override bool Perform(Point origin, GenAction action)
    {
      float num1 = (float) this._steps;
      float steps = (float) this._steps;
      double num2 = (double) this._startStrength;
      Vector2 vector2_1 = new Vector2((float) origin.X, (float) origin.Y);
      Vector2 vector2_2 = this._startVelocity == Vector2.Zero ? Utils.RandomVector2(GenBase._random, -1f, 1f) : this._startVelocity;
      while ((double) num1 > 0.0 && num2 > 0.0)
      {
        num2 = (double) this._startStrength * ((double) num1 / (double) steps);
        float num3 = num1 - 1f;
        int num4 = Math.Max(1, (int) ((double) vector2_1.X - num2 * 0.5));
        int num5 = Math.Max(1, (int) ((double) vector2_1.Y - num2 * 0.5));
        int num6 = Math.Min(GenBase._worldWidth, (int) ((double) vector2_1.X + num2 * 0.5));
        int num7 = Math.Min(GenBase._worldHeight, (int) ((double) vector2_1.Y + num2 * 0.5));
        for (int x = num4; x < num6; ++x)
        {
          for (int y = num5; y < num7; ++y)
          {
            if ((double) Math.Abs((float) x - vector2_1.X) + (double) Math.Abs((float) y - vector2_1.Y) < num2 * 0.5 * (1.0 + (double) GenBase._random.Next(-10, 11) * 0.015))
              this.UnitApply(action, origin, x, y);
          }
        }
        int num8 = (int) (num2 / 50.0) + 1;
        num1 = num3 - (float) num8;
        vector2_1 += vector2_2;
        for (int index = 0; index < num8; ++index)
        {
          vector2_1 += vector2_2;
          vector2_2 += Utils.RandomVector2(GenBase._random, -0.5f, 0.5f);
        }
        vector2_2 = Vector2.Clamp(vector2_2 + Utils.RandomVector2(GenBase._random, -0.5f, 0.5f), -Vector2.One, Vector2.One);
      }
      return true;
    }
  }
}