Help with VB6

Ping Chow Chi

I am currently doing a little game, nothing fantastic just a 'dodge the falling objects' kind of thing. For the completion of an introduction to VB6 course I am currently doing.

The problem is that there appears a lot of 'clipping' (I think thats the term) when there are alot of moving objects.

maybe a link to the game would be helpfull

game

its still no where near finished, I know I have few things to sort, but I have no idea how to sort this 'clipping'

Evil Phil

Can you post the source files instead ping?

Ping Chow Chi

ok - the above link now points to the source files

just need help on the 'clipping' problem though - let me work out the rest of the stuff for myself though, so no pointing out the other errors of my code please :x

Ping Chow Chi

asked my tutor about this on saturday and apparently there is not a great deal I can do to solve it.

str8_away

There is way to get rid of 'clipping' fleaker whatever.
To do this you need 2 picture boxes and one API function

take a look of API function

Private Declare Function BitBlt Lib "gdi32" ( _
ByVal hDestDC As Long, ByVal X As Long, ByVal Y As Long, _
ByVal nWidth As Long, ByVal nHeight As Long, _
ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, _
ByVal dwRop As Long) As Long

This function can copy content of one picture box to an other.
So what you do is prepare your "Screen" on one picture box 1 in the back ground. When it is ready copy it to picture box 2 and it will display in one.

To show this working quickly,
1) copy yhte above function on top of your code in frmGame
2) create 2 picture box, picture1 and pitcure2 with same height and width. (4815 and 8400)
3)move your image array (imgGame) into picture1
4)add following code in generatePulse() just before end sub

BitBlt Picture2.hDC, 0, 0, Picture1.Width, Picture1.Height, Picture1.hDC, 0, 0, vbSrcCopy

5) set left and top of picture1 to (240,720)
6) set left and top of picture2 to (4560,5640)
7) set frmGame hight and width to (11520,13215)
8)press F5 and move the application to the centre of screen.

You will see that in Picture2 there is no 'clipping' and in pictureon there is.
You will also see something "funny" in picture2. This is because you have image array inside the picture box (I think)
To get ride of that you will need to resture your game. Use BitBlt to copy "bomb" and "gren" into picture2. instead of image array.

Hope this helps

Ping Chow Chi

thanks for the help - I think it will take me a little time to understand what this does before I impliment it though

str8_away

And you should.

Let me know if you have any question.