MissionBase.cs

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Random = UnityEngine.Random;

public enum MissionType
{
	SingleRun, TotalMeter, FishesSingleRun
}

public abstract class MissionBase : MonoBehaviour {

	public int max;
	public int progress;
	public int reward;
	public Player player;
	public int currentProgress;
	public MissionType missionType;

	public abstract void Created();
	public abstract string GetMissionDescription();
	public abstract void RunStart();
	public abstract void Update();

	public bool GetMissionComplete()
	{
		if((progress + currentProgress) >= max)
		{
			return true;
		}
		else
		{
			return false;
		}
	}
}

public class SingleRun : MissionBase
{
	public override void Created()
	{
		missionType = MissionType.SingleRun;
		int[] maxValues = { 1000, 2000, 3000, 4000 };
		int randomMaxValue = Random.Range(0, maxValues.Length);
		int[] rewards = { 100, 200, 300, 400 };
		reward = rewards[randomMaxValue];
		max = maxValues[randomMaxValue];
		progress = 0;
	}

	public override string GetMissionDescription()
	{
		return "Corra " + max + "m em uma corrida";
	}

	public override void RunStart()
	{
		progress = 0;
		player = FindObjectOfType<Player>();
	}

	public override void Update()
	{
		if (player == null)
			return;

		progress = (int)player.score;
	}
}

public class TotalMeters : MissionBase
{
	public override void Created()
	{
		missionType = MissionType.TotalMeter;
		int[] maxValues = { 10000, 20000, 30000, 40000 };
		int randomMaxValue = Random.Range(0, maxValues.Length);
		int[] rewards = { 1000, 2000, 3000, 4000 };
		reward = rewards[randomMaxValue];
		max = maxValues[randomMaxValue];
		progress = 0;
	}

	public override string GetMissionDescription()
	{
		return "Corra " + max + "m no total";
	}

	public override void RunStart()
	{
		progress += currentProgress;
		player = FindObjectOfType<Player>();
	}

	public override void Update()
	{
		if (player == null)
			return;

		currentProgress = (int)player.score;
	}
}

public class FishesSingleRun : MissionBase
{
	public override void Created()
	{
		missionType = MissionType.FishesSingleRun;
		int[] maxValues = { 100, 200, 300, 400, 500 };
		int randomMaxValue = Random.Range(0, maxValues.Length);
		int[] rewards = { 100, 200, 300, 400, 500 };
		reward = rewards[randomMaxValue];
		max = maxValues[randomMaxValue];
		progress = 0;
	}

	public override string GetMissionDescription()
	{
		return "Colete " + max + " peixes em uma corrida";
	}

	public override void RunStart()
	{
		progress = 0;
		player = FindObjectOfType<Player>();
	}

	public override void Update()
	{
		if (player == null)
			return;

		progress = player.coins;
	}
}