TheGameCreators - CodeBase - Intro to Programming 2

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Category: Complete Applications

Version: 1.0

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Uploaded: 4th Mar 2004 16:41

Modified: 1st Jan 1970 01:00

Author: MikeS

Summary

Introduction to darkbasic(Pro) programming.

Full Description

Introduction to darkbasic(Pro) programming.

DarkBASIC Professional Source Code

` This code was downloaded from The Game Creators

` It is reproduced here with full permission

` http://www.thegamecreators.com

` This tutorial was created by Yellow -Mike- 3-4-04

` Although not necessary, it would be nice to be credited and

` notified at yellow1dbp@hotmail.com if this was used in a game

` Thanks, and I hope the tutorial helps.

`Dark Basic Professional Introductory Programming

`This article is aimed towards newcomers or people who want to reinforce the basic

`Principles of Basic programming

`Welcome to programming

`As you may have noticed the "`" mark has been used many times

`This basically tells the compilier to ignore anything after that mark

`This is helpful for putting in notes you, so you remember information in long lines of code.

`Alternatvies to the ` mark are the statment "Rem". There are others, but don't worry

`about them at this moment.

`Now we begin

`This tutorial is broken down into _ lessons

`Please follow them 1 by 1

` Lesson 1- Print command

` Lesson 2- Variables

` Lesson 3- Input

` Lesson 4- text

` Lesson 5- Creating objects

` Lesson 6- Manipulating objects

` Lesson 7- Creating a Matrix

` Lesson 8- Moving in the 3D world

` Lesson 9- Manipulating the matrix

` Lesson 10- Texturing a matrix

`***********************KEEP IN MIND***********************************

`1.) It's possible there's mistakes, though I've tested all code

`2.) The Help key is F1 after the statement, or visit help at the menu

`3.) Expect headaches.

`4.) Have Fun!

`***********************************************************************

```````````````````````````

`````````Lesson 1``````````

```````````````````````````

do `This tells the program to do something

print "hello world" `This tells the compilier to print the words following in parenthesis

loop `The loop command constantly repeats this action

`This should rapidly repeat Hello world, because we're telling the program to

`Do(the action) print(the statement inside parentheses) and loop(continuly loop around and around).

```````````````````````````

`````````Lesson 2``````````

```````````````````````````

A=1 `This assigns A to 1. So whenever we use A in certain commands, the value returns 1.

print A

loop

`This should repeatedly repeat 1. This is because A is equal to 1.

```````````````````````````

`````````Lesson 3``````````

```````````````````````````

input "What is your name?",name$

`The input command tells the program to ask the user for information.

`This input is then stored in a variable name, with the $. This represents

`stored text information. This information can be stored with any value as long

`as it ends with $.

print name$

loop

`This should repeateadly print whatever you type as your name.

`We can also make things a little bit more advanced, by combinging a semicolon with

`the parenthese.

input "What is your name?",name$

print "Hello ";name$ `the semi-colon works like a space between strings of commands.

loop

`This should repeadetly print, hello ____(whatever your name is)

```````````````````````````

`````````Lesson 4``````````

```````````````````````````

`The text command is fairly versitile and can be used in many ways.

text 0,0,"This is a text"

`The numbers define the x,y position of the text on the 2d screen.

`The text inside the parenthesis tells what to display"

loop

`Text can also be combined with variables

A#=2

`the # sign works in the same way as the $ sign, but holds numbers.

text 0,0,"Your number is "+str$(A#)

`the str$ command is added to show a variable after the text.

loop

```````````````````````````

`````````Lesson 5``````````

```````````````````````````

make object cube 1,1

`This makes a cube with the unique number of 1, and size of 1.

`You should never really have objects with the same numbers, for these numbers are unique.

`They're later used to define what the object may do.

loop

`You should see a cube on your screen.

```````````````````````````

`````````Lesson 6``````````

```````````````````````````

make object cube 1,1

rotate object 1,0,object angle y(1)+0.1,0

`This rotates the object 1, 0.1 degreesY everytime the loop hits this statement.

loop

`You should see a rotating cube(from left to right) spinning.

```````````````````````````

`````````Lesson 7``````````

```````````````````````````

`Now we enter a more advanced subject

`Matrices are easy ways of making worlds. They're basically tiles, that can be moved up

`and down, and get textured.

make matrix 1,100,100,10,10

`This makes matrix number 1,100 wide,100 long,10 x and z segments

loop

`You should see a tile floor on your screen

```````````````````````````

`````````Lesson 8``````````

```````````````````````````

`When moving in a 3D world, we'll want things to be constantly updated

`Even in a 2D world, we still want to use this command.

`This may be the most important command you learn. The sync command

sync on

`Turns the refreshing of a screen on

sync rate 60

`Tells the screen to refresh at 60 Frames per second

make matrix 1,100,100,10,10

`The Controls (keep in mind, the default camera is 0, so it doesn't need to be in the statements)

if upkey() then move camera 1

`This says that if the upkey is pressed, move the camera 1 forward

if downkey() then move camera -1

`This says that if the down key is pressed, move the camera 1 backward

if leftkey() then turn camera left 1

`etc.

if rightkey() then turn camera right 1

`etc.

if shiftkey()

`This entire statement between the if and endif tells the camera to move up when shift is pressed.

pitch camera up 90

move camera 1

pitch camera down 90

endIf

if controlkey()

`Works the same way as above, except control moves camera down

pitch camera up 90

move camera -1

pitch camera down 90

endIf

sync

`refreshes the screen

loop

```````````````````````````

`````````Lesson 9``````````

```````````````````````````

`***Uses same source code from above***

sync on

sync rate 60

make matrix 1,100,100,10,10

randomize matrix 1,5

`Randomizes the points on a matrix between 1 and 5

update matrix 1

`updates the matrix to changes

if upkey() then move camera 1

if downkey() then move camera -1

if leftkey() then turn camera left 1

if rightkey() then turn camera right 1

if shiftkey()

pitch camera up 90

move camera 1

pitch camera down 90

endIf

if controlkey()

pitch camera up 90

move camera -1

pitch camera down 90

endIf

sync

loop

```````````````````````````

`````````Lesson 10`````````

```````````````````````````

`Same source as above

sync on

sync rate 60

make matrix 1,100,100,10,10

randomize matrix 1,5

update matrix 1

load image "PICK ANY IMAGE YOU WANT TO LOAD THAT IS A VALID FORMAT(.jpg,.bmp,etc.",1

`This loads an image. Place the path of the image in the parenthesis after you've

`loaded your desired image into the media menu.(a blue button at bottom right.Media/add/your picture)

`Then assign your unique number

prepare matrix texture 1,1,1,1

`This prepares matrix 1, to be textured by image 1, and the image

`is cut into 1 by 1 pieces.(Can be split if desired, but not necessary ex. 4x4,3x3,etc.)

update matrix 1

`We update the matrix once more, or we could have simply moved down the other

`update matrix statement.

if upkey() then move camera 1

if downkey() then move camera -1

if leftkey() then turn camera left 1

if rightkey() then turn camera right 1

if shiftkey()

pitch camera up 90

move camera 1

pitch camera down 90

endIf

if controlkey()

pitch camera up 90

move camera -1

pitch camera down 90

endIf

sync

loop

```````````````````````````

```````````Finale``````````

```````````````````````````

`Well, you've made it. Now you're ready to do some other cool stuff.

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Author Name:	MikeS
CodeBase Entries:	24

CodeBase - Intro to Programming 2

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DarkBASIC Professional Source Code

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