Re: [Audyssey] Bgt stuff that confuses me
Okay, I'll explain about functions, return values, etc.
Let's take an example function that adds two numbers. This would be
like you meeting some guy, and saying, From time to time I may call on you.
When I do, I'll give you two numbers. I want you to add them together, and
then give me the result, as a number. Then, you might tell the guy, 3 and
5. He would then say 8.
The return type of a function tells the program what type of value to
expect back from the function. If we say void, that means the function will
not return anything. If we say int, that means that, when we call the
function, we expect it to return an int to us.
When we specify function parameters, here's where the first and second
ints come into play. These are undefined outside our adding function,
because there's no need for them anywhere else. They're kind of like that
particular function's private workspace, where it can do anything it wants.
It can also define other variables that are only valid within that function,
within its private workspace. When the function returns, the janitor comes
along and clears away all the junk from the function's private workspace, so
nobody else will ever see it again.
When we call the function inside the main function, we're passing in
two parameters to the function. These parameters will fill the first and
second ints. That means, the function already has data in its private
workspace when it begins. It then manipulates that data, and returns the
result of those manipulations.
Hope that helped!
Jayson
- Original Message -
From: dark d...@xgam.org
To: Gamers@audyssey.org
Sent: Wednesday, March 24, 2010 2:57 PM
Subject: [Audyssey] Bgt stuff that confuses me
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and bits
and bytes. I'm rather uncertain why or when I would want to use variables
such as int8, double, or short which relate to the size of bits and bytes.
Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x,
however, hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first
and int second is all about, sinse how does bgt know what first and
second actually mean? it seems this function is working with a lot of
intagers which haven't been defigned successfully, but which work (I tried
creating a secript with this and it printed fine).
Any thoughts on this would be appreciated.
Btw, sinse I'm interested in rpg games (and sinse I'm not exactly
overflowing with useable sounds), I thought I'd begin by writing a basic
text box turn based combat game similar to acefire. I can't promise
anything astounding, but I'm hoping it'll be a good exercise for me if
nothing els, and teach me something useful about Bgt.
Beware the grue!
Dark.
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Re: [Audyssey] Bgt stuff that confuses me
Good analogy Jason.
Best Regards,
Hawyden
-Original Message-
From: gamers-boun...@audyssey.org [mailto:gamers-boun...@audyssey.org] On
Behalf Of Jayson Smith
Sent: Wednesday, March 24, 2010 2:31 PM
To: Gamers Discussion list
Subject: Re: [Audyssey] Bgt stuff that confuses me
Okay, I'll explain about functions, return values, etc.
Let's take an example function that adds two numbers. This would be
like you meeting some guy, and saying, From time to time I may call on you.
When I do, I'll give you two numbers. I want you to add them together, and
then give me the result, as a number. Then, you might tell the guy, 3 and
5. He would then say 8.
The return type of a function tells the program what type of value to
expect back from the function. If we say void, that means the function will
not return anything. If we say int, that means that, when we call the
function, we expect it to return an int to us.
When we specify function parameters, here's where the first and second
ints come into play. These are undefined outside our adding function,
because there's no need for them anywhere else. They're kind of like that
particular function's private workspace, where it can do anything it wants.
It can also define other variables that are only valid within that function,
within its private workspace. When the function returns, the janitor comes
along and clears away all the junk from the function's private workspace, so
nobody else will ever see it again.
When we call the function inside the main function, we're passing in
two parameters to the function. These parameters will fill the first and
second ints. That means, the function already has data in its private
workspace when it begins. It then manipulates that data, and returns the
result of those manipulations.
Hope that helped!
Jayson
- Original Message -
From: dark d...@xgam.org
To: Gamers@audyssey.org
Sent: Wednesday, March 24, 2010 2:57 PM
Subject: [Audyssey] Bgt stuff that confuses me
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and bits
and bytes. I'm rather uncertain why or when I would want to use variables
such as int8, double, or short which relate to the size of bits and bytes.
Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x,
however, hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first
and int second is all about, sinse how does bgt know what first and
second actually mean? it seems this function is working with a lot of
intagers which haven't been defigned successfully, but which work (I tried
creating a secript with this and it printed fine).
Any thoughts on this would be appreciated.
Btw, sinse I'm interested in rpg games (and sinse I'm not exactly
overflowing with useable sounds), I thought I'd begin by writing a basic
text box turn based combat game similar to acefire. I can't promise
anything astounding, but I'm hoping it'll be a good exercise for me if
nothing els, and teach me something useful about Bgt.
Beware the grue!
Dark.
---
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If you have any questions
Re: [Audyssey] Bgt stuff that confuses me
Hi,
I don't know where you got that idea. No, I didn't say that. My point
to Dark was that you can't call a function that hasn't been defined in
your script somewhere.
If you recall Dark said he didn't understand why he was writing an
add_numbers(() function when in the body of main he had already added
the numbers 3 and 5. What he failed to grasp at that point is that the
add_numbers function he used in main() hadn't been created yet. He
actually defines the contents of the add_numbers() function later on
in his script. Otherwise you can't call a function that doesn't exist.
A better way to explain it is when you open a book to the table of
contents and it tells you chapter 5 is on page 75. Well, what happens
if there is no page 75 in the book? The obvious answer is you can't
look up the contents of chapter 5 right?
Well, when writing scripts a similar concept comes into play. If you
write a little piece of code like
void main ()
{
int result = add_numbers (3, 5);
}
What you are telling main to do is to call the add_numbers function,
which should exist somewherein your script, and take the numbers 3 and
5 and add them together, and then return the result which happens to
be 8. If the add_numbers() function doesn't exist it is like turning
to a blank page in the book and the script can't continue. That's all
I was getting at.
However, to answer your immediate question i believe main can appear
anywhere in a BGT script. Although, in a lot of the examples I've
seen it appears at the top of the scripts. This makes sense since it
is the entry point for the script and initializes everything else.
Cheers!
On 3/25/10, Andy musicproa...@gmail.com wrote:
Hi Thom,
So you're saying, then, that main has to be at the bottom of the program?
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Re: [Audyssey] Bgt stuff that confuses me
Hi Dark,
I think the concept you are missing here is called scope. Variables
can be declared in the local scope or the global scope. There are
important differences and uses of each of these types of variables.
Global variables are generally declared at the top of your
program/script and are visable to every function and variable in your
program. Since these types of variables generally remain in memory
from the time you start it to the time it ends you want to use global
variables sparingly. Only use them for data that needs to remain in
memory at all times such as a player's health, ammo remaining, etc.
Local variables are variables declared inside a function which belong
specifically to that function. When that function exits the variable
and the data it contains is destroyed. Since it is specific to that
function other functions and variables elsewhere in your program can't
access them directly. This is where return types come in handy. A
function can return the data stored in a local variable making local
variables accessible to other functions and variables as needed. Here
is a case in point.
int Add (int x, int y)
{
return x+y;
}
void main ()
{
int result = Add (5, 7);
alert (results, result);
}
In this simple script I created a function which adds two numbers. The
variables x and y are local, specific to the add function. I don't
really want the values stored in x and y, but only the result of x+y.
Add returns an integer value which is the sum of x and y. and passes
it to the result variable in main(). Does that make sense?
As for changing global variables you can change the value stored in it
anywhere in your program including the same function multiple times.
You don't have to create new functions just to reset health or
whatever back to 100.
HTH
On 3/24/10, dark d...@xgam.org wrote:
I follow the printing business, but I'm uncertain as to the int first,
int second business, sinse these don't seem to have been defigned, also
I'm a litle confused as to what a return statement is exactly for.
I thought you make global variables and had your functions alter those.
For instance, you start with int hp = 100. You setup a function to change
this value, then is it not changed until you setup another function to
return it to 100 again?
Beware the grue!
Dark.
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Re: [Audyssey] Bgt stuff that confuses me
Hi,
Actually, return statements are alloud in functions that return void.
The only different is you don't return an actual value. The way you do
this is like this.
void main ()
{
return;
}
Since I didn't pass a value or variable to the return statement it
defaults to void.About the only time you want to do this is when your
function needs to exit early and without continuing with the rest of
the function.
HTH
On 3/24/10, Oriol Gómez ogomez@gmail.com wrote:
I'm going to try to answer your questions:
1. Void fucntions are functions that don't return anythin gI.e: No
return statements allowed.
2. 3+5 in between quotes is going to be printed as such.
Example:
if you say alert(3+5=8); it's going to print exactly that. if you
said something like.
alert(hey +3+5);
that would print 8 because you're putting it outside a string.
hth
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Re: [Audyssey] Bgt stuff that confuses me
Hi Dark,
Smile. Welcome to the wonderful world of resource management. Don't
feel too bad as this is an issue that comes up all the time with new
programmers, because they often think as you do that a number is just
a number and don't understand the difference between int, float, long,
short, double, etc.
Thing is with computers before you can actually store a value, like a
number, you have to allocate enough memory on the heap to store it in
memory. The value 3 requires a lot less memory than the value
3.14159265. For a small integer value like 3 you can use a short
integer which will create just enough space in memory to handle that
value. For a large floating point value like 3.14159265 you'll want a
double value which will create a much larger block of memory on the
heap for storage. While you could create all your numeric variables as
double you'll run into the problem of waisting memory needlessly and
waisting valuable system resources that could be used elsewhere. That
is why it is a good idea only to asign enough space on the heap that
you actually need rather than using the largest amount of memory
possible just to store a small integer like 3.
As for your script questions remember in the main() function when you
call the add_numbers() function it hasn't been defined in your script
yet. So while the add_numbers() function does indeed add two numbers
but if you don't actually create that function somewhere in your
script that function doesn't exist. As it happens you create the
add_numbers() function after the main() function and it gets called by
main to add two numbers of type int. Does that make sense?
As far as the variables first and second you declared them as function
parameters in the declaration of your function like
int add-numbers (int first, int second)
which is perfectly legal and proper code. What this does is tell the
function that it requires two parameters of type int, and they must be
entered when the function is called like
int result = add_numbers (5, 7);
in order to perform the calculation. Otherwise without declaring first
and second as part of the function declaration you couldn't pass any
values or parameters to the function.
HTH
On 3/24/10, dark d...@xgam.org wrote:
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and bits
and bytes. I'm rather uncertain why or when I would want to use variables
such as int8, double, or short which relate to the size of bits and bytes.
Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x, however,
hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first and
int second is all about, sinse how does bgt know what first and second
actually mean? it seems this function is working with a lot of intagers
which haven't been defigned successfully, but which work (I tried creating a
secript with this and it printed fine).
Any thoughts on this would be appreciated.
---
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All messages are archived and can be searched and read at
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Re: [Audyssey] Bgt stuff that confuses me
I've never understood that either, probably why I've always gotten such poor
grades in math.
Homer: Hey, uh, could you go across the street and get me a slice of pizza?
Vender: No pizza. Only Khlav Kalash.
- Original Message -
From: Thomas Ward thomasward1...@gmail.com
To: Gamers Discussion list gamers@audyssey.org
Sent: Thursday, March 25, 2010 4:36 AM
Subject: Re: [Audyssey] Bgt stuff that confuses me
Hi Dark,
Smile. Welcome to the wonderful world of resource management. Don't
feel too bad as this is an issue that comes up all the time with new
programmers, because they often think as you do that a number is just
a number and don't understand the difference between int, float, long,
short, double, etc.
Thing is with computers before you can actually store a value, like a
number, you have to allocate enough memory on the heap to store it in
memory. The value 3 requires a lot less memory than the value
3.14159265. For a small integer value like 3 you can use a short
integer which will create just enough space in memory to handle that
value. For a large floating point value like 3.14159265 you'll want a
double value which will create a much larger block of memory on the
heap for storage. While you could create all your numeric variables as
double you'll run into the problem of waisting memory needlessly and
waisting valuable system resources that could be used elsewhere. That
is why it is a good idea only to asign enough space on the heap that
you actually need rather than using the largest amount of memory
possible just to store a small integer like 3.
As for your script questions remember in the main() function when you
call the add_numbers() function it hasn't been defined in your script
yet. So while the add_numbers() function does indeed add two numbers
but if you don't actually create that function somewhere in your
script that function doesn't exist. As it happens you create the
add_numbers() function after the main() function and it gets called by
main to add two numbers of type int. Does that make sense?
As far as the variables first and second you declared them as function
parameters in the declaration of your function like
int add-numbers (int first, int second)
which is perfectly legal and proper code. What this does is tell the
function that it requires two parameters of type int, and they must be
entered when the function is called like
int result = add_numbers (5, 7);
in order to perform the calculation. Otherwise without declaring first
and second as part of the function declaration you couldn't pass any
values or parameters to the function.
HTH
On 3/24/10, dark d...@xgam.org wrote:
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and
bits
and bytes. I'm rather uncertain why or when I would want to use variables
such as int8, double, or short which relate to the size of bits and
bytes.
Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x,
however,
hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first
and
int second is all about, sinse how does bgt know what first and second
actually mean? it seems this function is working with a lot of intagers
which haven't been defigned successfully, but which work (I tried
creating a
secript with this and it printed fine).
Any thoughts on this would be appreciated.
---
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Re: [Audyssey] Bgt stuff that confuses me
Intt is the interjeter.
Contact info.
email:
muhamme...@googlemail.com
msn:
muhammed123...@hotmail.co.uk
Skype:
muhammed.deniz
Klango username.
muhammed
- Original Message -
From: Bryan Peterson bpeterson2...@cableone.net
To: Gamers Discussion list gamers@audyssey.org
Sent: Thursday, March 25, 2010 11:03 AM
Subject: Re: [Audyssey] Bgt stuff that confuses me
I've never understood that either, probably why I've always gotten such
poor grades in math.
Homer: Hey, uh, could you go across the street and get me a slice of
pizza?
Vender: No pizza. Only Khlav Kalash.
- Original Message -
From: Thomas Ward thomasward1...@gmail.com
To: Gamers Discussion list gamers@audyssey.org
Sent: Thursday, March 25, 2010 4:36 AM
Subject: Re: [Audyssey] Bgt stuff that confuses me
Hi Dark,
Smile. Welcome to the wonderful world of resource management. Don't
feel too bad as this is an issue that comes up all the time with new
programmers, because they often think as you do that a number is just
a number and don't understand the difference between int, float, long,
short, double, etc.
Thing is with computers before you can actually store a value, like a
number, you have to allocate enough memory on the heap to store it in
memory. The value 3 requires a lot less memory than the value
3.14159265. For a small integer value like 3 you can use a short
integer which will create just enough space in memory to handle that
value. For a large floating point value like 3.14159265 you'll want a
double value which will create a much larger block of memory on the
heap for storage. While you could create all your numeric variables as
double you'll run into the problem of waisting memory needlessly and
waisting valuable system resources that could be used elsewhere. That
is why it is a good idea only to asign enough space on the heap that
you actually need rather than using the largest amount of memory
possible just to store a small integer like 3.
As for your script questions remember in the main() function when you
call the add_numbers() function it hasn't been defined in your script
yet. So while the add_numbers() function does indeed add two numbers
but if you don't actually create that function somewhere in your
script that function doesn't exist. As it happens you create the
add_numbers() function after the main() function and it gets called by
main to add two numbers of type int. Does that make sense?
As far as the variables first and second you declared them as function
parameters in the declaration of your function like
int add-numbers (int first, int second)
which is perfectly legal and proper code. What this does is tell the
function that it requires two parameters of type int, and they must be
entered when the function is called like
int result = add_numbers (5, 7);
in order to perform the calculation. Otherwise without declaring first
and second as part of the function declaration you couldn't pass any
values or parameters to the function.
HTH
On 3/24/10, dark d...@xgam.org wrote:
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and
bits
and bytes. I'm rather uncertain why or when I would want to use
variables
such as int8, double, or short which relate to the size of bits and
bytes.
Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x,
however,
hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first
and
int second is all about, sinse how does bgt know what first and second
actually mean? it seems this function is working with a lot of intagers
which haven't been defigned successfully, but which work (I tried
creating a
secript with this and it printed fine).
Any thoughts on this would be appreciated.
---
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Re: [Audyssey] Bgt stuff that confuses me
Hi Thom,
So you're saying, then, that main has to be at the bottom of the program?
Thomas Ward wrote:
Hi Dark,
Smile. Welcome to the wonderful world of resource management. Don't
feel too bad as this is an issue that comes up all the time with new
programmers, because they often think as you do that a number is just
a number and don't understand the difference between int, float, long,
short, double, etc.
Thing is with computers before you can actually store a value, like a
number, you have to allocate enough memory on the heap to store it in
memory. The value 3 requires a lot less memory than the value
3.14159265. For a small integer value like 3 you can use a short
integer which will create just enough space in memory to handle that
value. For a large floating point value like 3.14159265 you'll want a
double value which will create a much larger block of memory on the
heap for storage. While you could create all your numeric variables as
double you'll run into the problem of waisting memory needlessly and
waisting valuable system resources that could be used elsewhere. That
is why it is a good idea only to asign enough space on the heap that
you actually need rather than using the largest amount of memory
possible just to store a small integer like 3.
As for your script questions remember in the main() function when you
call the add_numbers() function it hasn't been defined in your script
yet. So while the add_numbers() function does indeed add two numbers
but if you don't actually create that function somewhere in your
script that function doesn't exist. As it happens you create the
add_numbers() function after the main() function and it gets called by
main to add two numbers of type int. Does that make sense?
As far as the variables first and second you declared them as function
parameters in the declaration of your function like
int add-numbers (int first, int second)
which is perfectly legal and proper code. What this does is tell the
function that it requires two parameters of type int, and they must be
entered when the function is called like
int result = add_numbers (5, 7);
in order to perform the calculation. Otherwise without declaring first
and second as part of the function declaration you couldn't pass any
values or parameters to the function.
HTH
On 3/24/10, dark d...@xgam.org wrote:
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and bits
and bytes. I'm rather uncertain why or when I would want to use variables
such as int8, double, or short which relate to the size of bits and bytes.
Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x, however,
hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first and
int second is all about, sinse how does bgt know what first and second
actually mean? it seems this function is working with a lot of intagers
which haven't been defigned successfully, but which work (I tried creating a
secript with this and it printed fine).
Any thoughts on this would be appreciated.
---
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[Audyssey] Bgt stuff that confuses me
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and bits and
bytes. I'm rather uncertain why or when I would want to use variables such as
int8, double, or short which relate to the size of bits and bytes. Shorely, a
number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and return
result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x, however,
hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first and
int second is all about, sinse how does bgt know what first and second
actually mean? it seems this function is working with a lot of intagers which
haven't been defigned successfully, but which work (I tried creating a secript
with this and it printed fine).
Any thoughts on this would be appreciated.
Btw, sinse I'm interested in rpg games (and sinse I'm not exactly overflowing
with useable sounds), I thought I'd begin by writing a basic text box turn
based combat game similar to acefire. I can't promise anything astounding, but
I'm hoping it'll be a good exercise for me if nothing els, and teach me
something useful about Bgt.
Beware the grue!
Dark.
---
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Re: [Audyssey] Bgt stuff that confuses me
I'm going to try to answer your questions:
1. Void fucntions are functions that don't return anythin gI.e: No
return statements allowed.
2. 3+5 in between quotes is going to be printed as such.
Example:
if you say alert(3+5=8); it's going to print exactly that. if you
said something like.
alert(hey +3+5);
that would print 8 because you're putting it outside a string.
hth
On 3/24/10, dark d...@xgam.org wrote:
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and bits
and bytes. I'm rather uncertain why or when I would want to use variables
such as int8, double, or short which relate to the size of bits and bytes.
Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x, however,
hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first and
int second is all about, sinse how does bgt know what first and second
actually mean? it seems this function is working with a lot of intagers
which haven't been defigned successfully, but which work (I tried creating a
secript with this and it printed fine).
Any thoughts on this would be appreciated.
Btw, sinse I'm interested in rpg games (and sinse I'm not exactly
overflowing with useable sounds), I thought I'd begin by writing a basic
text box turn based combat game similar to acefire. I can't promise anything
astounding, but I'm hoping it'll be a good exercise for me if nothing els,
and teach me something useful about Bgt.
Beware the grue!
Dark.
---
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Re: [Audyssey] Bgt stuff that confuses me
I follow the printing business, but I'm uncertain as to the int first, int second business, sinse these don't seem to have been defigned, also I'm a litle confused as to what a return statement is exactly for. I thought you make global variables and had your functions alter those. For instance, you start with int hp = 100. You setup a function to change this value, then is it not changed until you setup another function to return it to 100 again? Beware the grue! Dark. - Original Message - From: Oriol Gómez ogomez@gmail.com To: Gamers Discussion list gamers@audyssey.org Sent: Wednesday, March 24, 2010 7:01 PM Subject: Re: [Audyssey] Bgt stuff that confuses me I'm going to try to answer your questions: 1. Void fucntions are functions that don't return anythin gI.e: No return statements allowed. 2. 3+5 in between quotes is going to be printed as such. Example: if you say alert(3+5=8); it's going to print exactly that. if you said something like. alert(hey +3+5); that would print 8 because you're putting it outside a string. hth --- Gamers mailing list __ Gamers@audyssey.org If you want to leave the list, send E-mail to gamers-unsubscr...@audyssey.org. You can make changes or update your subscription via the web, at http://audyssey.org/mailman/listinfo/gamers_audyssey.org. All messages are archived and can be searched and read at http://www.mail-archive.com/gam...@audyssey.org. If you have any questions or concerns regarding the management of the list, please send E-mail to gamers-ow...@audyssey.org.
Re: [Audyssey] Bgt stuff that confuses me
Yay, but you can also have function variables.
Ok for example, say you make a fucntionw here a user has to choose a
menu option.
Say taht option is called menu
You'd do soemthing like this
int menu() {
int userposition=0;
when you press down arrow userposition=userposition+1;
then
return userposition;
would make userposition a global variable
to get this value you'd have to use something like
option=menu();
that would call the menu function and give you what the user chose, as
the option var
Also it's not necessary to use all the different types of int, all you
need to know is void, int, double, and string.
On 3/24/10, dark d...@xgam.org wrote:
I follow the printing business, but I'm uncertain as to the int first,
int second business, sinse these don't seem to have been defigned, also
I'm a litle confused as to what a return statement is exactly for.
I thought you make global variables and had your functions alter those.
For instance, you start with int hp = 100. You setup a function to change
this value, then is it not changed until you setup another function to
return it to 100 again?
Beware the grue!
Dark.
- Original Message -
From: Oriol Gómez ogomez@gmail.com
To: Gamers Discussion list gamers@audyssey.org
Sent: Wednesday, March 24, 2010 7:01 PM
Subject: Re: [Audyssey] Bgt stuff that confuses me
I'm going to try to answer your questions:
1. Void fucntions are functions that don't return anythin gI.e: No
return statements allowed.
2. 3+5 in between quotes is going to be printed as such.
Example:
if you say alert(3+5=8); it's going to print exactly that. if you
said something like.
alert(hey +3+5);
that would print 8 because you're putting it outside a string.
hth
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Re: [Audyssey] Bgt stuff that confuses me
Hi Oriol,
A small correction, void functions can indeed contain return statements,
however only the word return with a semicolon after it and no actual value.
This allows you to break prematurely out of a function, even if it doesn't
return a value.
Kind regards,
Philip Bennefall
- Original Message -
From: Oriol Gómez ogomez@gmail.com
To: Gamers Discussion list gamers@audyssey.org
Sent: Wednesday, March 24, 2010 8:01 PM
Subject: Re: [Audyssey] Bgt stuff that confuses me
I'm going to try to answer your questions:
1. Void fucntions are functions that don't return anythin gI.e: No
return statements allowed.
2. 3+5 in between quotes is going to be printed as such.
Example:
if you say alert(3+5=8); it's going to print exactly that. if you
said something like.
alert(hey +3+5);
that would print 8 because you're putting it outside a string.
hth
On 3/24/10, dark d...@xgam.org wrote:
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and
bits
and bytes. I'm rather uncertain why or when I would want to use variables
such as int8, double, or short which relate to the size of bits and
bytes.
Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x,
however,
hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first
and
int second is all about, sinse how does bgt know what first and second
actually mean? it seems this function is working with a lot of intagers
which haven't been defigned successfully, but which work (I tried
creating a
secript with this and it printed fine).
Any thoughts on this would be appreciated.
Btw, sinse I'm interested in rpg games (and sinse I'm not exactly
overflowing with useable sounds), I thought I'd begin by writing a basic
text box turn based combat game similar to acefire. I can't promise
anything
astounding, but I'm hoping it'll be a good exercise for me if nothing
els,
and teach me something useful about Bgt.
Beware the grue!
Dark.
---
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Re: [Audyssey] Bgt stuff that confuses me
I'm more than mildly confused about all that Dark. That could be where I'm
having trouble with my current project. All I can say is I'm glad I never
went in expecting this to be completely easy, otherwise I'd have been in for
a nasty shock. I still have every intention of buying the Light and
eventually the pro versions but I think it'd best wait until I'm more
comfortable with this whole business.
Homer: Hey, uh, could you go across the street and get me a slice of pizza?
Vender: No pizza. Only Khlav Kalash.
- Original Message -
From: dark d...@xgam.org
To: Gamers@audyssey.org
Sent: Wednesday, March 24, 2010 12:57 PM
Subject: [Audyssey] Bgt stuff that confuses me
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and bits
and bytes. I'm rather uncertain why or when I would want to use variables
such as int8, double, or short which relate to the size of bits and bytes.
Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x,
however, hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first
and int second is all about, sinse how does bgt know what first and
second actually mean? it seems this function is working with a lot of
intagers which haven't been defigned successfully, but which work (I tried
creating a secript with this and it printed fine).
Any thoughts on this would be appreciated.
Btw, sinse I'm interested in rpg games (and sinse I'm not exactly
overflowing with useable sounds), I thought I'd begin by writing a basic
text box turn based combat game similar to acefire. I can't promise
anything astounding, but I'm hoping it'll be a good exercise for me if
nothing els, and teach me something useful about Bgt.
Beware the grue!
Dark.
---
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Re: [Audyssey] Bgt stuff that confuses me
My friend with the msc in computer science said his favourite book on games
programming had a first chapter entitled games programming is hard! and a
scond chapter ientitled games programming is bloody hard! ;D.
I am finding slowly things are indeed sinking into my brain, but it's taking
careful reading of the examples and wrestling with it, --- though to be
honest I've not had so much fun learning something in a long time.
Beware the grue!
Dark.
- Original Message -
From: Bryan Peterson bpeterson2...@cableone.net
To: Gamers Discussion list gamers@audyssey.org
Sent: Wednesday, March 24, 2010 8:15 PM
Subject: Re: [Audyssey] Bgt stuff that confuses me
I'm more than mildly confused about all that Dark. That could be where I'm
having trouble with my current project. All I can say is I'm glad I never
went in expecting this to be completely easy, otherwise I'd have been in
for a nasty shock. I still have every intention of buying the Light and
eventually the pro versions but I think it'd best wait until I'm more
comfortable with this whole business.
Homer: Hey, uh, could you go across the street and get me a slice of
pizza?
Vender: No pizza. Only Khlav Kalash.
- Original Message -
From: dark d...@xgam.org
To: Gamers@audyssey.org
Sent: Wednesday, March 24, 2010 12:57 PM
Subject: [Audyssey] Bgt stuff that confuses me
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and
bits and bytes. I'm rather uncertain why or when I would want to use
variables such as int8, double, or short which relate to the size of bits
and bytes. Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x,
however, hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first
and int second is all about, sinse how does bgt know what first and
second actually mean? it seems this function is working with a lot of
intagers which haven't been defigned successfully, but which work (I
tried creating a secript with this and it printed fine).
Any thoughts on this would be appreciated.
Btw, sinse I'm interested in rpg games (and sinse I'm not exactly
overflowing with useable sounds), I thought I'd begin by writing a basic
text box turn based combat game similar to acefire. I can't promise
anything astounding, but I'm hoping it'll be a good exercise for me if
nothing els, and teach me something useful about Bgt.
Beware the grue!
Dark.
---
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All messages are archived and can be searched and read at
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If you have any questions or concerns regarding the management of the
list,
please send E-mail to gamers-ow...@audyssey.org.
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Re: [Audyssey] Bgt stuff that confuses me
Hi Dark,
Lol! What's the third chapter called, Game Programming is Completely
Impossible!? Grin
Best Regards,
Hayden
-Original Message-
From: gamers-boun...@audyssey.org [mailto:gamers-boun...@audyssey.org] On
Behalf Of dark
Sent: Wednesday, March 24, 2010 3:27 PM
To: Gamers Discussion list
Subject: Re: [Audyssey] Bgt stuff that confuses me
My friend with the msc in computer science said his favourite book on games
programming had a first chapter entitled games programming is hard! and a
scond chapter ientitled games programming is bloody hard! ;D.
I am finding slowly things are indeed sinking into my brain, but it's taking
careful reading of the examples and wrestling with it, --- though to be
honest I've not had so much fun learning something in a long time.
Beware the grue!
Dark.
- Original Message -
From: Bryan Peterson bpeterson2...@cableone.net
To: Gamers Discussion list gamers@audyssey.org
Sent: Wednesday, March 24, 2010 8:15 PM
Subject: Re: [Audyssey] Bgt stuff that confuses me
I'm more than mildly confused about all that Dark. That could be where I'm
having trouble with my current project. All I can say is I'm glad I never
went in expecting this to be completely easy, otherwise I'd have been in
for a nasty shock. I still have every intention of buying the Light and
eventually the pro versions but I think it'd best wait until I'm more
comfortable with this whole business.
Homer: Hey, uh, could you go across the street and get me a slice of
pizza?
Vender: No pizza. Only Khlav Kalash.
- Original Message -
From: dark d...@xgam.org
To: Gamers@audyssey.org
Sent: Wednesday, March 24, 2010 12:57 PM
Subject: [Audyssey] Bgt stuff that confuses me
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and
bits and bytes. I'm rather uncertain why or when I would want to use
variables such as int8, double, or short which relate to the size of bits
and bytes. Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x,
however, hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first
and int second is all about, sinse how does bgt know what first and
second actually mean? it seems this function is working with a lot of
intagers which haven't been defigned successfully, but which work (I
tried creating a secript with this and it printed fine).
Any thoughts on this would be appreciated.
Btw, sinse I'm interested in rpg games (and sinse I'm not exactly
overflowing with useable sounds), I thought I'd begin by writing a basic
text box turn based combat game similar to acefire. I can't promise
anything astounding, but I'm hoping it'll be a good exercise for me if
nothing els, and teach me something useful about Bgt.
Beware the grue!
Dark.
---
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Re: [Audyssey] Bgt stuff that confuses me
Number/variable types relate to resource efficiency etc.
As in why store a number that'll never go higher than 32768 - limit for
something like an Int16/short - in a variable of a much larger type, like
Int64?
Same principle as in why would you store a piece of paper in a full on
rucksack if that's all you were trying to carry in it.
In terms of local and global variables, the theory is that a local variable
to only be used within a function/method doesn't need to be available to
every other part of the game/script/program etc, and therefore, why would
you want the applet to make use of resources to remember it all the time?
Lastly, the general difference between a method and a function, is that
while a method will carry out an activity/bit of functionality, a function
will return a specific value/result based on either what you asked it to
look at/do/handle, and a method would specifically just carry out activities
based on same types of input etc., and the use of the Return keyword is
simply a form of standardised way of telling a method or function that the
process has been completed, but if the function is meant to return an actual
output value - as in isn't a void function, it'll then use the keyword to
return it's output value.
There are a set of books called:
How to think like a computer scientist
And there are around 5 different versions involving the use of learning to
program from a very much beginners point of view, but making use of 5
different types of programming...LOL!
Stay well
Jacob Kruger
Blind Biker
Skype: BlindZA
'...fate had broken his body, but not his spirit...'
- Original Message -
From: dark d...@xgam.org
To: Gamers@audyssey.org
Sent: Wednesday, March 24, 2010 8:57 PM
Subject: [Audyssey] Bgt stuff that confuses me
Hi.
Having already read through the tutorial once, I stil find myself mildly
confused on a couple of matters.
Firstly, all the stuff relating to doubled short or long intagers and bits
and bytes. I'm rather uncertain why or when I would want to use variables
such as int8, double, or short which relate to the size of bits and bytes.
Shorely, a number is a number and can be written as such?
Secondly, I'm uncertain as to the difference betwene void functions and
return result functions, and I must confess I don't follow this example:
void main()
{
int x=add_numbers(3, 5);
alert(Wow, 3 + 5 is... + x + !);
}
int add_numbers(int first, int second)
{
int result=first+second;
I can see that the alert will write the text string with the int x,
however, hasn't the (3 + 5), already produced the result of 8 for x?
Also, I have absolutely no idea what the business involving int first
and int second is all about, sinse how does bgt know what first and
second actually mean? it seems this function is working with a lot of
intagers which haven't been defigned successfully, but which work (I tried
creating a secript with this and it printed fine).
Any thoughts on this would be appreciated.
Btw, sinse I'm interested in rpg games (and sinse I'm not exactly
overflowing with useable sounds), I thought I'd begin by writing a basic
text box turn based combat game similar to acefire. I can't promise
anything astounding, but I'm hoping it'll be a good exercise for me if
nothing els, and teach me something useful about Bgt.
Beware the grue!
Dark.
---
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gamers-unsubscr...@audyssey.org.
You can make changes or update your subscription via the web, at
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All messages are archived and can be searched and read at
http://www.mail-archive.com/gam...@audyssey.org.
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