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Double Hi-Res Graphics


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#101 Casey OFFLINE  

Casey

    Chopper Commander

  • 129 posts

Posted Sun May 14, 2017 5:23 PM

Did you do the steps in order?  If you did, there is legible text with instructions on how to proceed through the program.  If you didn't, there are flashing characters and random symbols all over the bottom of the screen.



#102 2600problems OFFLINE  

2600problems

    Chopper Commander

  • 234 posts

Posted Sun May 14, 2017 6:33 PM

well, I've got the second one, even though I followed through. am I using an inferior version of prodos, do I have to go through basic? what do I need to do?



#103 Iamgroot OFFLINE  

Iamgroot

    Chopper Commander

  • 118 posts
  • Location:Saskatchewan

Posted Sun May 14, 2017 9:55 PM

The program should work fine with or without DOS.

 

The dbl-hi-res screen views random graphics for page 1 or a picture if one was previously loaded and random graphics for screen #2.

 

The four lines at the bottom of the screen should tell you which dbl-hi-res screen you are viewing, and while viewing screen #2 you will see text on text page #2.

 

While viewing screen#2 the program then clears screen #1 to all white, then switches to view screen #1 and text page #1.

 

I didn't get too extravagant with the graphics as the program was getting long enough.

 

When booting up, make sure the FLASH command is not invoked at any time.  If you have a startup program, rename it to something else temporarily and let it boot straight to the applesoft prompt. Then follow the directions given earlier.



#104 sarkeizen OFFLINE  

sarkeizen

    Space Invader

  • 11 posts

Posted Wed Jul 26, 2017 1:18 PM

New post:  Double hi-res from the ground up part 8.

 

https://lastrational...ound-up_11.html



#105 sarkeizen OFFLINE  

sarkeizen

    Space Invader

  • 11 posts

Posted Mon Aug 21, 2017 6:15 AM

Part Nine - is now up, where I tie everything together with a nice API -- as an added bonus I show off my (lack of) artistic talent!

 

swordforge.jpg

 

 

I've also started using the domain http://battlestations.zone - all the old links to my previous (and somewhat pretentious) domain http://lastrationalman.blogspot.com will get redirected.



#106 Jackel192 OFFLINE  

Jackel192

    Star Raider

  • 94 posts

Posted Mon Sep 4, 2017 7:34 PM

works perfect. do you know any other MC programs



#107 thorr OFFLINE  

thorr

    Chopper Commander

  • 155 posts

Posted Thu Sep 21, 2017 11:33 PM

 

Part Nine - is now up, where I tie everything together with a nice API -- as an added bonus I show off my (lack of) artistic talent!

 

 

 

I've also started using the domain http://battlestations.zone - all the old links to my previous (and somewhat pretentious) domain http://lastrationalman.blogspot.com will get redirected.

 

Thanks!  Your articles are awesome and I am really looking forward to the future articles.  Please keep them coming!  I am really looking forward to seeing how to handle animated objects moving on a background.



#108 Michaelangel007 OFFLINE  

Michaelangel007

    Combat Commando

  • 1 posts

Posted Thu Oct 26, 2017 5:42 PM

This deficiency about not being able to examine/change a DHGR screen at the bit level has been addressed.  Please see my DHGR.BYTE program.

https://github.com/M.../apple2_hgrbyte

 

Examples, and full assembly source is included.

 

Michael

AppleWin Developer

 

 

Oh what about sprite tools!

 

Speaking of DHR drawing programs, there are only two I know of for the Apple II - 816 Paint and Dazzle Draw.  I use them both.  Often I draw a sprite sheet using Dazzle Draw then write a BASIC program to load it and get it into the format I want and save it as a binary file.  One annoying thing is that neither of these programs lets you manipulate individual bits.





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