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41
General Discussion / Have Fun experimenting with Mapping
« Last post by MR. Y on May 19, 2012, 01:11:53 pm »
When a flea hops, where he lands depends where he hopped from.
YOU can make up the rules!
It is fun because this way you can draw his tracks on the screen as fabulous coloured patterns.

For thousands of years everyone "knew" (it was "obvious") that simple mappings (hopping rules) give simple patterns (maps)

A very few people knew otherwise, but were ridiculed.
Then, surprisingly recently, it was discovered that even the SIMPLEST hopping rule can give results that are UTTERLY UNPREDICTABLE long term.
Where you will end up is fixed (predestined) but the ONLY way to find out is to take ALL the jumps and see!

For example  think of a flea hopping along a line.
He is now at position 0.6
He has an amount of energy we will call 1 (or 100%).
This would be enough to hop  from 0.6 to 2.4 (increasing his distance by 4 times)
But to get to 0.6 he used some of his energy, leaving him with only 1-.6 = .4

So his next position is 0.6 times 4 times (1- 0.6), which is 0.96
His next hop now takes him to 0.96 times 4 times (1-.96)
And so on.......

It is a bit like an animal population (rabbits) that would quadruple each year but cannot do that because there is not enough food.

The interersting thing is this ever-so-simple rule next x=4x(1-x) gives results that NEVER repeat!

One of the first games I ever wrote was like this.
I had fish and plants in a tank
The fish eat the plants and the plants give the oxygen needed by the fish.
So the fish population goes up and down (often while the plant population goes down and up - but not always!)
I called this the "Fish Oscillator" for it was spectacularly unpredictable.

You can do the same thing using a flea that hops horizontally (x) on the screen as well as vertically (y)
Start him at x=0.1, y=0.31 and use the mapping hop rules
next x=4x(1-x)
next y=4y(1-y)
You will eventually get the whole screen chaotically filled with flea-landings.

But now try not a 4 times growth but a growth between 3 and 4
Now VERY strange things happen! Not always chaos!
42
General Discussion / Re: let's get something straight here...
« Last post by axlyon on May 19, 2012, 12:34:06 pm »
well, the word balloon, if you mouse over the icons on my profile the one that says "Personal Message" or PM is how you contact me. you didn't "do it wrong" but it's easier to figure out who's contacting me with either a direct eMail or a PM
43
General Discussion / Re: let's get something straight here...
« Last post by MR. Y on May 19, 2012, 12:21:25 pm »
Yes it is a message from your forum!
A would-be poster is asking for your advice

HOW does he send you a PM - it nowhere says how
In what manner is a PM different of better or less confusing.

Sorry if I "did it wrong"
Your advice where and how (under what heading or topic) to post this would be very much appreciated and not only because it is your site.
I don't want to post just to please myself - I want to help you Attract valuable and helpful new members.
44
General Discussion / let's get something straight here...
« Last post by axlyon on May 18, 2012, 11:12:42 am »
john, please stop sending me eMails with nothing about who you are in them. a PM will suffice. you know my address, so you might just want to eMail me directly.
Quote
Please say WHERE you'd like this put in Techno Games

Is is HOW I wrote my very first game.
So it MIGHT appeal to a real beginner, scared to know WHERE and HOW to start!

I can remember being like that.


So maybe we should start a topic called
"How I wrote my first game"

Assuming you do do that, this is what I will say:-
(Put it straight in if you agree)

I wanted to write a game.
But soon found that all a computer could DO was write idiot things like "Hello World" on the screen.

So given a computer HOW do we get it to do something that helps ME!

Well for weeks I was disillusioned.
But one day, idly, I made it write Hello world so many time it filled the screen and I noticed it "jumped up one"
And it still did that whatever I told it to print
So I told it to print I a hundred times, each on a new line (PRINT "I")
This gave me a vertical line
Big deal!

So I moved the I a bit (Print " I", Print " I", and so on)
A wiggly line.
Not much use, eh

But TWO wiggly lines?
They are the edges of a RACE TRACK
which "Moves up" each time a new line is "added"

OK, so we need a car
My car was done like this
llll
llll
llll
and I started with it between the edges of my racetrack

I found I had WRITTEN a program!
Here th car is at the top of the screen and "moves down the track because the track edges move up!

To STEER the car I had to insert spaces before it to move it Right (or after it to move it left)

HOW you do this really DOES NOT MATTER.
In fact I ended up using the keyboard keys L and R.
You can use the "arrows" if you look up a bit of jargon what "codes" they use.

You can also make a far better car, and the colours you want.

Anyway the car "proceeds down the wiggly track"
(use RND to wiggle the track)
Soon it collides with the track edge.
Count how many times and you have both a score, a winner and a record score ever

By now I hope you are getting the idea and at least SOME of all that jargon code (in whatever language) is starting to make sense.

I suggest using QBAS, because it is "almost English" which means you can get help about it from a friend or parent. They can read your program and almose see what it is doing.

Unfortunately, Bill Gates, in one of his bodge "improvements" (this one called SP2) managed to STOP most people using QBAS. (I managed to defeat him.)
If he stops you then use QB64 - a free download that Google Search knows all about.
QB64 is very much faster than QBAS. Better.
"More powerful" - good luck with finding out what that actually means.

Having now written your first game, write to us here and tell us how it turned out and all your ideas for better games.
Create your own forum at http://www.createaforum.com/free-forum.php


contacting me like that just looks like another message from my forum, so please either eMail me from your eMail account, or PM me on here so i at least can tell who's writing me. i'm not trying to offend anyone, it's just a little confusing at times

45
Your Projects / Re: my text adventure
« Last post by axlyon on May 18, 2012, 10:59:38 am »
*SIGH*

a codebox is a place to put in text that you do not want changed by the forum when submitted. 
46
Your Projects / Re: my text adventure
« Last post by MR. Y on May 18, 2012, 05:13:04 am »
We are trying to get new people with ideas.
If you say "Copy this into qbas" then that is fine and is English (and they can get help from normal people, friends and parents)
If you just "throw a "codebox" at them, we may drive away folk for whom codebox is jargon
I try never to use jargon if I can say it in simple English
47
Ideas / Re: The game of Bagatelle
« Last post by MR. Y on May 18, 2012, 05:03:39 am »
The people hundreds of years ago (thousands?) were VERY smart
Those who never played bagatelle missed a lot of FUN - only slightly revisited in recent games like Pinball.

The whole thing is fascinating.
For a ball will rattle safely down a sloping U-section valley (child's slide), while a togoggan on the Creata Run will also survive PROVIDED the errors do not take it higher than the walls!

So the two things are utterly different:-
!. How safely CONSTRAINED you are for SMALL errors (e.g of calculation)
2. How BIG an error and you fly off over the side!

In the game of bagatelle there is always another pin to bounce off if you miss one!
But in other cases (Pascal's Triangle) there may not be.
Even in Bagatelle you CAN (and do rarely) escape (the same way you got in: by chance!)

It would be FUN to know how LONG you are likely to remain inside the ring. This depends how SMALL is the gap between pins through which the ball, diameter D, must pass.

I can write a programme that calculates this.
BUT
The errors (of computation) grow - each one an increase of the earlier error - until the result is meaningless! Indeed, eventually you get out but NOT EVEN between the correct two pins!

The "whole new interesting thing" is this:-
WHY are some problems not calculable due to error growth
HOW to tell if your problem DOES forgive errors and how BIG an error will be forgiven?
The best idea is to think of the U-section slide and find the answers by experimental trials.
48
Ideas / Re: The game of Bagatelle
« Last post by axlyon on May 15, 2012, 12:57:55 pm »
wow. that's a complicated idea. you might want to make it have several patterns it loads one from the patterns at random.
49
Your Projects / Re: my text adventure
« Last post by axlyon on May 15, 2012, 12:53:45 pm »
i will edit this for you. making a codebox.

john it took me only a few seconds to insert a codebox, how hard did you think it might be?
50
Your Projects / Re: my text adventure
« Last post by OlDosLover on May 15, 2012, 06:04:05 am »
Hi all,
    It doesn't matter what to run it in as its cannot be highlighted and copied even to notepad until the code is placed in code boxes and smileys turned off. Try highlighting a line with a smiley on it and paste that line into notepad. As you will see it doesn't replicate it correctly and hence the program wont run unless the end user manually edits it.
OlDosLover.
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