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## Apparently, no so simple Math.....

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### #1cavendert  Members

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Posted 19 August 2014 - 03:26 PM

Pokemon battling again for practice. Tried to make it a little harder this time with attack and defense. Health - (attack - defense).

I get the feeling my order of operations is getting messed up somehow, because no matter, how I re-code it, somebody is always gaining life.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication9
{
class Pokemon
{
public string Name;
public int Health;
public int Attack;
public int Defense;
}
class Program
{
static List<Pokemon> shaunPokemon = new List<Pokemon>() {
new Pokemon {
Name = "Mega Bidoof",
Health = 700,
Attack = 600,
Defense = 500
},
new Pokemon {
Name = "Bidoof",
Health = 350,
Attack = 150,
Defense = 50,
},
new Pokemon {
Name = "Bidoof",
Health = 350,
Attack = 150,
Defense = 50,
}
};

static List<Pokemon> myPokemon = new List<Pokemon>() {
new Pokemon {
Name = "Scizor",
Health = 400,
Attack = 180,
Defense = 100
},
new Pokemon {
Name = "Houndoom",
Health = 380,
Attack = 220,
Defense = 50
},
new Pokemon {
Name = "Tyranitar",
Health = 350,
Attack = 100,
Defense = 80
}
};

static void Main(string[] args)
{
//Random Generator
var rnd = new Random();
var randomChoice = shaunPokemon[rnd.Next(shaunPokemon.Count)];

Console.WriteLine("Writer Shaun challenges you to a battle!");
Console.WriteLine("I choose you, " + randomChoice.Name + "! \n");
for (int i = 0; i < myPokemon.Count; i++)
{
Console.WriteLine("Press " + (i + 1) + " for " + myPokemon[i].Name + ".");
}
int index = int.Parse(myInput) - 1;
Console.WriteLine();
Pokemon selected = myPokemon[index];

Console.WriteLine("I choose you, " + selected.Name + "! \n");
Console.WriteLine("Press Enter to attack.");

while (selected.Health > 0 && randomChoice.Health > 0)
{
selected.Health -= (randomChoice.Attack - selected.Defense);
randomChoice.Health -= (selected.Attack - randomChoice.Defense);
Console.WriteLine(selected.Name + "'s health = " + selected.Health);
Console.WriteLine(randomChoice.Name + "'s health = " + randomChoice.Health);
Console.WriteLine();
Console.WriteLine("Press Enter to Attack again.");
};
}
}
}

As you can see, I even raised the attacks, to make sure that (Attack-Defense) should always be positive.

Am I missing something that simple?

### #2cavendert  Members

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Posted 19 August 2014 - 03:31 PM

If it helps, I just found that my compiler got stuck.....so, this might actually work. So, I have a follow up question!! This code should work about 60% of the time, every time.

Until "Mega Bidoof" is chosen. As a joke, his stats are so high, that he is ruining the equation. Other than writing an if/else statement for bidoof, and mega bidoof, with their own while statements, is there a better way to write that?

### #3Lactose  GDNet+

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Posted 19 August 2014 - 03:42 PM

Something like this should do the trick:

int damageTaken = attack - defense;
if (damageTaken > 0)
health -= damageTaken;


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### #4cavendert  Members

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Posted 19 August 2014 - 04:05 PM

Something like this should do the trick:

int damageTaken = attack - defense;
if (damageTaken > 0)
health -= damageTaken;


damn........that's genius.........Then make two? One for my damage, and one for their damage?

### #5cavendert  Members

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Posted 19 August 2014 - 04:09 PM

I still have the same issue, where Mega Bidoof throws off the numbers. Though, as I look at it, my health should always hit 0 in the first move anyway, so I'm not sure I care that much. Thanks again for the idea!

### #6TheChubu  Members

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Posted 19 August 2014 - 04:16 PM

POPULAR

Something like this should do the trick:

int damageTaken = attack - defense;
if (damageTaken > 0)
health -= damageTaken;

health -= max(attack - defense, 0)

Doing min/max ops is objectively prettier

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### #7Lactose  GDNet+

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Posted 19 August 2014 - 04:18 PM

I see your min/max ops and raise you blocking logic!

int damageTaken = attack - defense;
if (damageTaken > 0)
health -= damageTaken;
else
Console.WriteLine("Attack blocked!");


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### #8TheChubu  Members

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Posted 19 August 2014 - 04:22 PM

I see your min/max ops and raise you blocking logic!

int damageTaken = attack - defense;
if (damageTaken > 0)
health -= damageTaken;
else
Console.WriteLine("Attack blocked!");


I wouldn't put game logic and (arguably) UI code in the same place. Just saiyan.

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### #9slicer4ever  GDNet+

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Posted 19 August 2014 - 04:24 PM

I see your min/max ops and raise you blocking logic!

int damageTaken = attack - defense;
if (damageTaken > 0)
health -= damageTaken;
else
Console.WriteLine("Attack blocked!");


In pokemon, all offensive attacks do at least one damage even if they should be 100% negated(except for move types that are uneffective against the opponent types(i.e ghost/normal iirc))

so, let me just fix chubu's real quick:
health -= max(attack - defense, 1)


Edited by slicer4ever, 19 August 2014 - 04:31 PM.

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### #10Lactose  GDNet+

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Posted 19 August 2014 - 04:24 PM

It could also easily be non-UI related. E.g. every time you block all damage 4 times in a row, gain double damage for next attack. Do counter related things inside the if/else blocks. Just to continue the derail a bit.

But we both know you're just typing stuff here to avoid coding!

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### #11cavendert  Members

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Posted 19 August 2014 - 04:43 PM

I see your min/max ops and raise you blocking logic!

int damageTaken = attack - defense;
if (damageTaken > 0)
health -= damageTaken;
else
Console.WriteLine("Attack blocked!");


In pokemon, all offensive attacks do at least one damage even if they should be 100% negated(except for move types that are uneffective against the opponent types(i.e ghost/normal iirc))

so, let me just fix chubu's real quick:
health -= max(attack - defense, 1)


All very nice! I do have one question. In this line of code right at the bottom, what is the 1 for? I get that we are trying to always do atleast 1 damage, but does that effect the code if normal damage is done?

### #12Ectara  Members

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Posted 19 August 2014 - 04:43 PM

I see your min/max ops and raise you blocking logic!

int damageTaken = attack - defense;
if (damageTaken > 0)
health -= damageTaken;
else
Console.WriteLine("Attack blocked!");


In pokemon, all offensive attacks do at least one damage even if they should be 100% negated(except for move types that are uneffective against the opponent types(i.e ghost/normal iirc))

so, let me just fix chubu's real quick:
health -= max(attack - defense, 1)


I was just about to say that.

Then make two?

If you find yourself saying that, consider making it a method of the class.

### #13Lactose  GDNet+

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Posted 19 August 2014 - 04:47 PM

All very nice! I do have one question. In this line of code right at the bottom, what is the 1 for? I get that we are trying to always do atleast 1 damage, but does that effect the code if normal damage is done?

int x = max(attack - defense, 1);

is equivalent to
int x = attack - defense;
if (x < 1)
x = 1;


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### #14cavendert  Members

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Posted 20 August 2014 - 11:31 AM

Ah. That's what I was assuming, but I didn't want to assume. Thank you all for the advice!!!!

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