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Search: Posts Made By: adrazar
Forum: Coders. AMOS 20 April 2018, 14:58
Replies: 6
Views: 434
Posted By adrazar
This sounds like a fun challenge! I would like to...

This sounds like a fun challenge! I would like to give it a try, but could use some additional technical info first:
1. How many colours (i.e. bitplanes) does the bobs use?
2. How many colours does...
Forum: Coders. AMOS 02 February 2018, 01:10
Replies: 17
Views: 5,119
Posted By adrazar
This is a way to make Bobsprite Col work on a...

This is a way to make Bobsprite Col work on a scrolling screen (assuming Bob Update has been turned off): Move the bob with the following instruction

Bob N,X Bob(N)-XOFFSET,Y Bob(N)-YOFFSET,
...
Forum: Coders. Asm / Hardware 04 January 2018, 19:29
Replies: 9
Views: 2,711
Posted By adrazar
You got it! The pipelining thing explains it all,...

You got it! The pipelining thing explains it all, thank you :)
Forum: Coders. Asm / Hardware 04 January 2018, 03:22
Replies: 9
Views: 2,711
Posted By adrazar
This thread describes no less than exactly what I...

This thread describes no less than exactly what I have been dabbling with lately, but after reading it I still fail to see why such a blit can't be done...!

To make it dead simple, let's say we...
Forum: Coders. AMOS 30 June 2017, 16:35
Replies: 15
Views: 1,946
Posted By adrazar
Good news! Turns out there is an easy way to...

Good news! Turns out there is an easy way to prevent AMOS from clipping bobs along the horizontal edges (at least for the simple testing program I made):

Doke Screen Base+76,NEW_SCREEN_WIDTH

By...
Forum: Coders. AMOS 22 June 2017, 15:26
Replies: 15
Views: 1,946
Posted By adrazar
I'm trying to make a horizontal scroller, which...

I'm trying to make a horizontal scroller, which means I don't require any vertical copper splitting. But your expert tip for handling bobs in this case is gratefully accepted :) Although, I probably...
Forum: Coders. AMOS 21 June 2017, 10:03
Replies: 15
Views: 1,946
Posted By adrazar
Assuming you by the extremes of the screen are...

Assuming you by the extremes of the screen are referring to the columns with x-coordinates 0 and (Screen Width - 1) respectively, I can't see how Screen Display could be used to hide these as soon as...
Forum: Coders. AMOS 20 June 2017, 21:47
Replies: 15
Views: 1,946
Posted By adrazar
Thanks for your reply :) There were indeed a...

Thanks for your reply :)

There were indeed a few threads on this forum discussing this method. Unfortunately I could not find anything of use considering handling bobs. Was there a particular...
Forum: Coders. AMOS 18 June 2017, 22:01
Replies: 15
Views: 1,946
Posted By adrazar
Disable bob clipping at screen edges

Hi all! I found a new and interesting scrolling method here: ftp://de.aminet.net/pub/aminet/dev/src/ScrollingTrick.lha. The idea is that continued increments of Screen Offset in x-direction will...
Forum: Coders. AMOS 27 February 2017, 16:43
Replies: 18
Views: 2,155
Posted By adrazar
The heights appears to be rounded down to nearest...

The heights appears to be rounded down to nearest multiple of 8 although the Screen Height instruction returns whatever number was given to Screen Open (unless between 1009 and 1023, these will be...
Forum: Coders. AMOS 27 February 2017, 15:01
Replies: 18
Views: 2,155
Posted By adrazar
I made the screen scroll one pixel to the right...

I made the screen scroll one pixel to the right every time I clicked the mouse, and as Retro1234 said there were no hickups. It's equally consistent scrolling left.



My experiments before...
Forum: Coders. AMOS 26 February 2017, 21:33
Replies: 18
Views: 2,155
Posted By adrazar
The chip ram is set to 2 MB. I tried adjusting it...

The chip ram is set to 2 MB. I tried adjusting it up to 8 MB, but it didn't do any difference.
Forum: Coders. AMOS 26 February 2017, 20:33
Replies: 18
Views: 2,155
Posted By adrazar
I might add that I'm using AMOS Pro v2.0 on...

I might add that I'm using AMOS Pro v2.0 on WinUAE.

Does anyone else get the same error message if writing, say

Screen Open 0,1024,200,8,Lowres
?
Forum: Coders. AMOS 25 February 2017, 23:38
Replies: 18
Views: 2,155
Posted By adrazar
Screen width 1024 doesn't work

I'm having trouble setting up screens of width 1024, although the manual says this should be possible. Setting the width or height parameter of a screen open instruction to 1024 results in an illegal...
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