Computer Science Canada

Transparency in DOSOOT v2.5

Author:  Qweet [ Wed Jun 11, 2003 9:33 pm ]
Post subject:  Transparency in DOSOOT v2.5

Is there any way to do transparent sprite blitting in DOSOOT v2.5? I can't find any but have to make a game in it for a project and it would really, really help if I could use transparency.

Thanks.

Author:  Tony [ Wed Jun 11, 2003 10:19 pm ]
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If your school is using DOS Turing v2.5... well I'm sure that violates more then one law Laughing

I'm serious though, like how old is that piece of crap?

Author:  Homer_simpson [ Wed Jun 11, 2003 10:31 pm ]
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we used turin 2.0 for half our course then our school got some money(principal went bank robbery) and we got new version 4.0.0(i think)

Author:  Catalyst [ Wed Jun 11, 2003 10:33 pm ]
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we did turing 8 for the first month then went over to 3.11

Author:  Mazer [ Thu Jun 12, 2003 7:00 am ]
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ha! i beat you all. when i started comp sci last year guess what we used for the first half of the course?

textbooks! and not even programming related textbooks, just noobish computers for dummies kind of textbook (they were actually 'for dummies' but you had to be pretty dumb if they taught you anything). it was halfway through the semester when the teacher actually introduced turing, and it was 3.11

but it was kinda funny, before we started he told us that if we wanted a copy of turing for home use we could order it for $75 or something like that. yet, as soon as you opened turing you'd get a nice message saying that it was registered to riverside secondary school. (but wait a minute... i go to massey...)

Author:  Bruski [ Thu Jun 12, 2003 7:16 am ]
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hehe...or u can rip them off the internet...in our class ppl hook each other up with turing...teachers like "yes im sure can get them by other illegal means"....but its all good we in canada...hehe we rich fuckers at this school, cept dude we have dells.... Mad ....i learned more from this site than i learned with my teacher...you ppl are too good with this shit...and sad to say...we learning this in CompEng

Author:  Qweet [ Thu Jun 12, 2003 7:51 am ]
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Well I'm glad I sparked such an interesting conversation... and our school has all sorts of Turing versions, but we have to use 2.5 (i think its from 1995). Anyway, back to my original question, is there a way to make transparent sprites in this version? Picmerge doesnt function so all i've got is XOR.

Any thoughts?

Author:  Tony [ Thu Jun 12, 2003 4:47 pm ]
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I dont think you can then... You could draw it pixel by pixel using whatdotcolor Confused If speed is not important to you.

Author:  Qweet [ Fri Jun 13, 2003 12:34 pm ]
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Yeah, I tried a pixel by pixel drawing routine, but it went really slow because there's no backbuffer support in this turing.

I've come upon a pretty reasonable solution. Since I'm drawing a targeting reticle that moves with the mouse (so you can shoot things!) I wanted it to be transparent as it moved over the background. What I do is draw the reticle (using like drawline and stuff), but how do i erase it right? What i did was set up a takepic before I draw the reticle, then I draw the reticle, delay, draw the image I takepicked, and then move the position and start all over again. It works pretty well.


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