Walls, Collisions, Mazes... ?

[$uper-$tar]

Umm... I need help.. alot of help.

I wanted to make a simple maze thing, were the user can move through a maze, but not going through the walls...

How can I make this, and How can I make the walls.

This thing is frying my brain, I need help

~$uper-$tar


If you have any tutorials or know of any that learn to make a 2d maze or something that can help... and that it is easy to learn from with out the complex ways... thanks

[Allanon]

Hi

How I would make a maze is by storing the maze in an array.

X columns
0 1 2 3 4 5 6 7 8 9 or however long the maze is
1
y 2
3
c 4
o 5
l 6
u 7
m8
n 9

Then filling the array with either 1's or 0's. A zero in the certain spot would mean you can walk there, and a 1 could be a wall

so the array could look like this, NOTE that a wall should be placed around the border, so you can't just walk off into nowhere, and using a 2 for the start, so you can place the person in a maze, and a 3 for the end

X columns
0 1 2 3 4 5 6 7 8 9 or however long the maze is
1 1 1 1 1 1 1 1 1 1
y 2 1 2 0 0 0 1 0 1 1
3 1 0 1 1 0 1 0 0 1
c 4 1 0 0 0 0 1 1 0 1
o 5 1 0 1 1 1 0 0 0 1
l 6 1 0 0 0 0 0 1 1 1
u 7 1 0 1 1 1 1 0 3 1
m8 1 0 0 0 0 0 0 1 1
n 9 1 1 1 1 1 1 1 1 1

Then you move through the maze by just adjusting the array +1 or -1 to move left and right in the x column, or +1, -1 in the y column to move up or down.

Hope this helps

[$uper-$tar]

I have no clure how to do that... could I ask for a small design so I can understand it more clearer?

~$uper-$tar

[vshammas]

hey,
i also need this info for an rpg. any concrete examples would be useful, i know how to do it theoretically, but i need the code! just something to get me started. thanks!
victor


btw, i know that there is a tutorial at http://markbutler.8m.com where it shows how to create a maze, but it is randomly created. how can i define a map without having it be random? thanks.

[$uper-$tar]

Only bad part is, they picture is slow compared to where the guy is. Though very easy to understand.

Thanks

~$uper-$tar

[vshammas]

that was a great maze tutorial! thanks, it really helped. i have one quick ? though.

in the timer1 where you are actually drawing out the graphics there is the following loops

For x = 1 To 10
For y = 1 To 10
If MazeArray(x, y) = 0 Then ' draw white box
color = RGB(255, 255, 255)
ElseIf MazeArray(x, y) = 1 Then ' draw black box
color = RGB(0, 0, 0)
ElseIf MazeArray(x, y) = 2 Then ' draw red box
color = RGB(200, 0, 0)
ElseIf MazeArray(x, y) = 3 Then ' draw blue box
color = RGB(0, 0, 200)
End If
Line (x * BOX_WIDTH, y * BOX_HEIGHT)-(x * BOX_WIDTH + BOX_WIDTH, y * BOX_HEIGHT + BOX_HEIGHT), color, BF
Next
Next


Specifically i have a question about this line:

Line (x * BOX_WIDTH, y * BOX_HEIGHT)-(x * BOX_WIDTH + BOX_WIDTH, y * BOX_HEIGHT + BOX_HEIGHT), color, BF


what is it that you are doing? what is BF and why are you multiplying the x coordinates with the width and height? thanks!

also, if i know want to use pictures (tiles) instead of blocks of colour, i have heard that i have to use something called BitBLT. what is this and is there a good tutorial?

[Allanon]

Hi

The line:
Line (x * BOX_WIDTH, y * BOX_HEIGHT)-(x * BOX_WIDTH + BOX_WIDTH, y * BOX_HEIGHT + BOX_HEIGHT), color, BF

this is used for drawing the colored boxes you see, BF means
B = Make a Box,
F = Fill box with the color

You could omit the F, and then the box would just be drawn and not filled with the color.

Line(x1, y1)-(x2, y2), color, (Box and or fill)

x1 = x * BOX_WIDTH
x2 = (x * BOX_WIDTH) + BOX_WIDTH
y1 = y * BOX_HEIGHT
y2 = (y * BOX_HEIGHT) + BOX_HEIGHT

okay I'll show you an example then I think you'll see why those lines are like that

we want to draw a box for MazeArray(0,0) so the very first one

so:

x1 = (0) * BOX_WIDTH = 0
x2 = ((0) * BOX_WIDTH) + BOX_WIDTH = BOX_WIDTH
y1 = (0) * BOX_HEIGHT = 0
y2 = ((0) * BOX_HEIGHT) + BOX_HEIGHT = BOX_HEIGHT

so after this first step
we have a box in the cordinates 0-BOX-WIDTH, and then 0-BOX_HEIGHT

so now if we wanted to draw the next box in the MazeArray
which would be MazeArray(0,1)

x1 = (0) * BOX_WIDTH = 0
x2 = ((0) * BOX_WIDTH) + BOX_WIDTH = BOX_WIDTH
y1 = (1) * BOX_HEIGHT = BOX_HEIGHT
y2 = ((1) * BOX_HEIGHT) + BOX_HEIGHT = BOX_HEIGHT * 2

so in effect the box is directly below the first box

if instead you used the equation

x1 = x
x2 = x + BOX_WIDTH
y1 = y
y2 = y + BOX_HEIGHT

we would only be moving 1 pixel over every time we drew a new box, so we need to move over the box's width or height everytime
we draw another box

I hope that helps

as for BitBlt, I've never used it before, I learned DirectDraw instead,

BitBlt is a way to take the images you've drawn and be able to display them into your project. Its sorta of like the Line command cept that you aren't confined to lines, but instead you use images

but www.planet-source-code.com should have something on BitBlt for a tutorial

[vshammas]

Great, thanks. i understand it now. i found a bitBLT/tile based game tutorial on this website in case anyone else is interested as well:

http://fox.acky.net/vb/english/codin...ial/index.html

merry christmas

[$uper-$tar]

How would you change the Box to a image?

~$uper-$tar

[$uper-$tar]

How could you make the white boxs to a picture...
How could you make the black boxs to a picture...
How could you make the guy to a picture...


~$uper-$tar

[vshammas]

the way i understood it is that you have to work with more complicated code using certain API calls (?, is that what you call it?). go to that tutorial website mentioned previously and look through all the posts. i don't think you can just replace the balls by typing in the path of a picture...

[$uper-$tar]

thats what i thought after tying other ways... i thought maybe I could try the path of the picture...

Btw, Merry Christmas

~$uper-$tar

[vshammas]

merry christmas!

i found a few good tutorials on the net, go to www.planet-source-code.com and search for tutorials under visual basic.

[$uper-$tar]

Here are some I will be reading over the long night

BitBlt Tutorial-
http://rookscape.com/vbgaming/GBeebe/bitblt.php

Tile Tutorial Part 1-
http://www.vbexplorer.com/tiletutor.asp

Tile Tutorial Part 2-
http://www.vbexplorer.com/tiletutor2.asp

The BitBlt API-
http://www.vbexplorer.com/library/bitbltprimer.htm

VB Role Playing Game Tutorial-
http://rookscape.com/vbgaming/vbrpgtut/vbrpgtut.php

Hole bunch of tutorials-
http://rookscape.com/vbgaming/tutorials.php

My gift from me to you all

~$uper-$tar

[Sastraxi]

I have one too if anyone is interested:

http://vbden.tripod.com/articles/invmask.htm

[$uper-$tar]

LoL, i will master this in... a day or too lol. So far I got like 50 pages on this stuff

~$uper-$tar

[vshammas]

thanks !