fungus/Assets/Fungus/Flowchart/Scripts/Commands/Break.cs

/**
 * This code is part of the Fungus library (http://fungusgames.com) maintained by Chris Gregan (http://twitter.com/gofungus).
 * It is released for free under the MIT open source license (https://github.com/snozbot/fungus/blob/master/LICENSE)
 */

using UnityEngine;
using System;
using System.Collections;
using System.Collections.Generic;

namespace Fungus
{
	[CommandInfo("Flow", 
	             "Break", 
	             "Force a loop to terminate immediately.")]
	[AddComponentMenu("")]
	public class Break : Command
	{
		public override void OnEnter()
		{
			// Find index of previous while command
			int whileIndex = -1;
			int whileIndentLevel = -1;
			for (int i = commandIndex - 1; i >=0; --i)
			{
				While whileCommand = parentBlock.commandList[i] as While;
				if (whileCommand != null)
				{
					whileIndex = i;
					whileIndentLevel = whileCommand.indentLevel;
					break;
				}
			}

			if (whileIndex == -1)
			{
				// No enclosing While command found, just continue
				Continue();
				return;
			}

			// Find matching End statement at same indent level as While
			for (int i = whileIndex + 1; i < parentBlock.commandList.Count; ++i)
			{
				End endCommand = parentBlock.commandList[i] as End;
				
				if (endCommand != null && 
				    endCommand.indentLevel == whileIndentLevel)
				{
					// Sanity check that break command is actually between the While and End commands
					if (commandIndex > whileIndex && commandIndex < endCommand.commandIndex)
					{
						// Continue at next command after End
						Continue (endCommand.commandIndex + 1);
						return;
					}
					else
					{
						break;
					}
				}
			}

			// No matching End command found so just continue
			Continue();
		}

		public override Color GetButtonColor()
		{
			return new Color32(253, 253, 150, 255);
		}		
	}
	
}