Need the logic of a general programmer or mathematician..

[XA04]

For a game I'm programming I need the level to increase everytime the player gets a score that is a multiple of 5. E.g. Level 1 = Score 0. Level 2 = Score 5. Level 3 = Score 10, etc.

This is the kind of code I have already:

                if (playerScore == 5)
                {
                    playerLevel++;

                    //Difficulty modifiers
                    bulletSpeed /= (float)playerLevel;

                    goodieSpeed /= (float)playerLevel;

                    bombSpeed *= (float)playerLevel;

                }

But instead of using many many if statements, is there something else like an equation I could use?

Basically I'm wanting to check if playerScore is a mutliple of 5...



Thanks

[jim]

I know virtually nothing about programming, but is it not possible to divide playerScore by 5 and check whether the result is an integer?

Admittedly that wouldn't work "as is" - if you just checked that as an if statement then presumably it would happen an infinite number of times when playerScore=multiple of 5. Sorry I can't help with programming, I absolutely despise it . If I'm on the wrong track then sorry!

[abaxas]

Basic programing 101!

http://cnx.org/content/m18717/latest/
http://forums.hexus.net/help-technic...ematician.html

Division and modulus!!!!!

[jimbo90210us]

if(playerScore%5 == 0)
{
          //Write code here
}

[Fraz]

unsigned level = 0;
unsigned score = 0;
const unsigned levelFactor = 5;

//  Stuff happens, score gets increased

// Check to see if we have moved up a level
unsigned newLevel = score/levelFactor;   // Use properties of integer division
if(level < newLevel)
{
  level = newLevel
  bulletSpeed /= (float)playerLevel;
  goodieSpeed /= (float)playerLevel;
  bombSpeed *= (float)playerLevel;
}

[Fraz]

if(playerScore%5 == 0)
{
          //Write code here
}

Modulus operator is definitely a useful thing to know about here, although not all that useful if you are regularly checking to see if the score/level has increased, as if your score is stuck on a multiple of 5, you'll regularly increase the difficulty level.

[Fraz]

Another point... you're going to end up with a very short game if you're constantly dividing/multiplying some kind of speed by the current level.

Say bulletSpeed starts at 1000. Every time the level increases, you will be dividing by the new level number. This is a factorial division, and the denominator will get large VERY quickly.

So... say the bulletSpeed starts at 1000. By level 9, you will have done:

1000/(1*2*3*4*5*6*7*8*9) = 0.0028

[XA04]

if(playerScore%5 == 0)
{
          //Write code here
}

Perfect. Thankyou.

Another point... you're going to end up with a very short game if you're constantly dividing/multiplying some kind of speed by the current level.

Say bulletSpeed starts at 1000. Every time the level increases, you will be dividing by the new level number. This is a factorial division, and the denominator will get large VERY quickly.

So... say the bulletSpeed starts at 1000. By level 9, you will have done:

1000/(1*2*3*4*5*6*7*8*9) = 0.0028

Very true. I was just messing with the code there really trying to get something basic to work. Will sort something properly out now

Thanks everyone!