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Code Snippets / cool random message program!

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Gamer Making
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Posted: 7th Apr 2007 05:41
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Like it? say yes if you do.

Bach Tran
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Gamer Making
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Posted: 7th Apr 2007 05:50
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lots of beginners should figure out how this works.

Bach Tran
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Essence
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Posted: 7th Apr 2007 14:54
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why use the 'printat()' function while you can use the 'text' function?

text x,y,string$

Current project: MiRevu Visual Gaming Engine
thread: http://forum.thegamecreators.com/?m=forum_view&t=103073&b=8
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Xenocythe
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Posted: 7th Apr 2007 18:11
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Lol, not bad, I started with this kind of stuff when I was a newcomer.


FREE DBPRO MEDIA PACK
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n008
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Posted: 21st Apr 2007 03:08
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Uhh... WTF!? Ur program doesn't work!!

Ling creckt tsi nocreckto havela? NASA chetallnar mo lu'ul nasding!
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Code Dragon
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Posted: 24th Apr 2007 20:18 Edited at: 26th Apr 2007 22:37
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I don't think newcomers should figure out how it works, I'm not trying to be mean but it looks more like it was written by a newcomer to me.

1 - Colors are between 0 and 255, not 1 and 256
2 - A 640x480 screen has pixels 0-639 and 0-479, not 0-640 and 0-480
3 - You need a randomize timer
4 - printat() should be changed to a text command
5 - You should indent your code
6 - You need to close the quote (probably why n008 posted)

Here's the fixed version



By reading this sentence you have given me brief control of your mind.
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Zotoaster
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Posted: 24th Apr 2007 22:35
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Someone's been watching too much Bill & Ted

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sadsack
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Posted: 25th Apr 2007 02:58
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I am not going to say anything.
renny
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TDK
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Posted: 25th Apr 2007 04:45 Edited at: 25th Apr 2007 04:54
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Quote: "Colors are between 1 and 255"


Actually, using 256 is correct...

Rnd(X) returns a number between 0 and X-1 inclusive. So, Rnd(256) can return 0, 1, 2, and so on up to 255 - but never 256. What he put therefore returns 0-255 which is correct for colours.

Using Rnd(), the same can be said for the 640x480 screen resolution.

However, it still doesn't take anything away from the fact that the snippet is pretty naff and useless...

TDK_Man

* TDK's Game Programming Forums - Open To All - DB & Team Request Boards *

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Phaelax
DBPro Master
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Posted: 25th Apr 2007 11:45
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Quote: "Colors are between 1 and 255"

technically, 0 and 255 which gives the 256 bit range.


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dark coder
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Posted: 25th Apr 2007 12:08 Edited at: 25th Apr 2007 12:09
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Quote: "Rnd(X) returns a number between 0 and X-1 inclusive. So, Rnd(256) can return 0, 1, 2, and so on up to 255 - but never 256. What he put therefore returns 0-255 which is correct for colours."


Using DBP this isn't true, using rnd 255 you will get values from 0 to 255, using 256 you'll get 0 to 256. Try the code below, using your theory it should never quit.




Quote: "
technically, 0 and 255 which gives the 256 bit range."


You mean 8 bit range .

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Phaelax
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Posted: 25th Apr 2007 21:01
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i corrent one mistake and make another one myself, figures!


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Code Dragon
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Posted: 25th Apr 2007 23:13
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Quote: "Quote: Colors are between 1 and 255
technically, 0 and 255 which gives the 256 bit range.
"


I know, just a typo. What is range though, the number of bits required to hold that range of numbers?

By reading this sentence you have given me brief control of your mind.
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TDK
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Posted: 26th Apr 2007 00:34
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dark coder

You are correct - sorry, I was mixing up what you do if you want a random number between 1 and X (Rnd(X-1)+1).

Quote: "What is range though, the number of bits required to hold that range of numbers?"


8-bit colour values are stored in a byte (8 binary bits) which can store 256 unique bit patterns (0 to 255) - hence the 256 colour limit.

In higher colour modes (like 24 bit), each of the red, green and blue elements have a byte each - giving you a range of 0 to 255 shades of each colour.

TDK_Man

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Phaelax
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Posted: 27th Apr 2007 00:41
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This might help explain a few things for you.
http://zimnox.com/hexbin/


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Code Dragon
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Posted: 27th Apr 2007 04:23 Edited at: 27th Apr 2007 04:26
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Well, I know how 24-bit color works and how to convert from decimal to binary to hexidecimal to octal, I've just never heard of the term range. I usually say 8 bits would have 2^8 = 256 permutations rather than 256 range.

[edit]

Just found out what range is on wikipedia. Is it really neccessary that DBPro supports ranges of −9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 though?

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dark coder
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Posted: 27th Apr 2007 11:31
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Quote: "Is it really neccessary that DBPro supports ranges of −9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 though?"


DBP already does, it's called the Double Integer.

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Code Dragon
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Posted: 28th Apr 2007 03:37
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Quote: "DBP already does, it's called the Double Integer."


I know. I was just asking why in the world it supports 64 bit intergers because it seems kind of silly that DBP supports numbers up to 9 million trillion.

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TDK
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Posted: 30th Apr 2007 07:27
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Probably because DBC needed the ability to use bigger numbers and the types now used in DBP are just the next step up size-wise.

Remember, adding just one more byte for data storage with a variable increases the maximum number storable by an incredible amount.

1 byte = 255 max number
2 bytes = 65535 max number

TDK-Man

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