New Batari one-line sprite Kernel / demo

[New Batari one-line sprite Kernel / demo]

 

On 1/30/2021 at 7:11 PM, Darthtom said:

 

1-line sprite kernel with batari basic. 

Playfield PF1 and PF2 also with 1-line res.

You can choose of different modi 

Modus 0  Add two flickered balls, at any height

Modus 1 : add multicolor sprite support for p0 and flickered p0 

Modus 2: colored playfield

Modus 3: colored background

Modus 4: add PF0 support 

the sprites must be all in the same height , it is done with sprite masking to reduce the cycles 

Greetings Tom

 

On 1/30/2021 at 7:11 PM, Darthtom said:

lemans.bas.bin 4 kB · 0 downloads

 

lemans.bas.bin

[New Batari one-line sprite Kernel / demo]

i flickered p0 and p1 == 4 sprites 

the flicker is done with 30hz , that don't hurt your eyes too much

collision with p0/p1 with playfield works, collision through sprites not, you have to check the borders ( it is shown in my demo game Le Mans)

the ball is also flickered --> ball1 + ball2 and could have independent positions on x/y

also you could tweak the nusiz registers during run time --> for resize or double / triple sprites 

 

 

lemans.bas.bin

[New Batari one-line sprite Kernel / demo]

2 minutes ago, Darthtom said:

Yes , I will post the source code tommorrow, in case you can live without ball /missile0 , P0 could me multicolored- in 1 line res

The playfield ist mirrored or repeated in rom , yes of course, there is no available ram . You can use PF1 + PF2 , also PFO in case you don't need ball / multicolored support

 

 

asymetrical playfield is nearly impossible in a 1 -line kernel without DPC + etc. 

 

[New Batari one-line sprite Kernel / demo]

i will write an tutorial to use this kernel out of batari basic. It's a complete rewriten multi sprite kernel

tom

[New Batari one-line sprite Kernel / demo]

37 minutes ago, splendidnut said:

I may be mistaken, but I believe this was talked about on @ZeroPage Homebrew's show a few months back.

 

https://www.youtube.com/watch?v=0XePsHLZDkM

yes you are right, my early kernel was in the show 

 

[New Batari one-line sprite Kernel / demo]

2 hours ago, Karl G said:

Pretty cool stuff. I'm guessing the playfield is in ROM? Is it a mirrored / repeated playfield instead of asymmetrical? Are you planning on releasing the supporting code for others to use as well?

Yes , I will post the source code tommorrow, in case you can live without ball /missile0 , P0 could me multicolored- in 1 line res

The playfield ist mirrored or repeated in rom , yes of course, there is no available ram . You can use PF1 + PF2 , also PFO in case you don't need ball / multicolored support

 

 

[New Batari one-line sprite Kernel / demo]

28 minutes ago, TheMajorHavoc said:

Looking great so far! Do multi-color sprites work in your kernal?

not yet, but it will be soon, when I found more cycles left to do it

 

[1- LINE SPRITE / Playfield KERNEL]

Spoiler

 

Hi Guys,

 

I finished my work on one-line sprite kernel for the use within batari basic.

You have 4 sprites  flickered, scrolling, sprites have one line resolution or if you want 2 -line res.

Playfield could be also 1 line res or even higher, if you want .

Any sugesstions please

Attached is a little car race demo ( Le Mans - c64 port WIP)

 

greetings Tom from Berlin

 

 

 

lemans.bas.bin

[New Batari one-line sprite Kernel / demo]

great addition to batari , one -line sprites rocks !!

thank you

[New Batari one-line sprite Kernel / demo]

HI Guys,

 

I just wrote an new one-line kernel for Batari Basic . Playfield could have any height, sprite is one-line resolution. Up to 4 sprites possible via flicker.

Any suggest please.

 

I attached a demo game ( Le Mans - start of the c64 game clone)

 

Have a nice day

 

Tom from Berlin

 

 

 

lemans.bas.bin

[Stratovox (2600)]

On 9/5/2020 at 4:41 AM, RaymanC said:

Hello Friends !!

Attached you will find my second homebrew game for the Atari 2600...

 

STRATOVOX 2600

 

It is a port of the 1980 Taito arcade game Stratovox also known as Speak and Rescue.

 

The object of this game is to shoot UFOs attempting to kidnap astronauts that appear on the right side of the screen.

If all astronauts are kidnapped, the game is over.

 

Use the joystick to move your spaceship left or right and press the button to fire.

You have to destroy 12 UFOs to complete the first level. On the second level, you have to destroy 15 UFOs, then 18, 21, 24 and so on.

At the end of each level, you will receive 100 bonus points for each astronaut not kidnapped. Also novice players will receive an extra astronaut without exceeding the maximum of 10 astronauts in the screen at once.

You start the game with 3 spaceships. Reach 5,000 points to receive an extra spaceship.

Yellow UFOs score 50 points and Red UFOs score 100 points.

UFOs carrying an astronaut score random points from 300 to 1,000 depending on their color and speed.

There are 36 levels in this game. Levels 1 to 4 are the easiest levels, the real action starts in level 5.

 

This game does not have voices like the arcade but I am planning to add some using Atarivox+ or SAM.

 

If you find any bug please let me know.

Enjoy !!

 

Carlos

RaymanC

 

Stratovox_2600_NTSC_RC1.bin 32 kB · 59 downloads Stratovox_2600_PAL60_RC1.bin 32 kB · 19 downloads