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P & I Type

Posted by SpiceWare, in Draconian 21 June 2017 · 52 views

The I-Type and P-Type missiles are in play. The I-Type will try to intercept you while the P-Type are just out on patrol.
 For a real challenge, try Sector 256!
For Harmony or Stella (requires Stella 5.0.0-pre8 or newer)

Station revisions

Posted by SpiceWare, in Draconian 19 June 2017 · 145 views

Reworked the stations to fire from the 2 closest pods.  For that I revised the closest pod to player tests from before, it now shows the 2 pods it'll fire from as well as the targeting line from the closest pod:

Additionally I finally tracked down a bug where you could shoot a station pod that you shouldn't be able to.  For that I bui...

Revised station shots

Posted by SpiceWare, in Draconian 17 June 2017 · 181 views

In the prior builds the stations would randomly shoot in 1 of 8 directions.  I've revised the routines to do the following:
station shots can travel in 32 different directions
identify the pod closest to player
randomly decide to shoot from that pod, as well as the 2 adjacent to it (the chance of firing is tied to the difficulty level and the sector...

Rules of the Game

Posted by SpiceWare, in Draconian 12 June 2017 · 415 views

In order to finish writing Draconian, I need to figure out the Rules of the Game . Information gathered from StrategyWiki , Gaming History and by playing in MAME.  Sometimes StrategyWiki differs from what I see in MAME, most likely due to how the dip switches are set.
If you spot something that's incorrect, can fill in any blank spots, or an...

AA in the house

Posted by SpiceWare, in Draconian 11 June 2017 · 122 views

Got quite a bit done the past few days!
AtariAge logo in place.  Not tune yet, so it's blink and you'll miss it ;)
fixed the screen roll issue on B-8.  It was due to left over code from this build , which took 6+ scanlines of time to set the positions of the objects during vertical blank.  This was no longer needed as object positions...

it exploded

Posted by SpiceWare, in Draconian 07 June 2017 · 168 views

Quite a few updates in this one!
There's all new graphics and color sequences for the explosions.  To support this the existing explosion routine had to be rewritten from scratch.  In fact, a number of routines have undergone revisions so let me know if you spot something odd....

Minor revision

Posted by SpiceWare, in Draconian 31 May 2017 · 214 views

I'm not very familiar with Bosconian, so I've decided I best put in some time to get a better understanding of how it plays. I cut the cord a few years back and use a Mac mini to drive my TV . Besides DVR software for broadcast TV , I've installed MAME , Stella , and OpenEMU on it.  I also have a couple PS3 controllers that are paired via bluetooth....

Time to play!

Posted by SpiceWare, in Draconian 29 May 2017 · 186 views

This blog entry is short and sweet!
All the features of the last DPC+ version of Draconian are back in place, so the game is once again playable.
As a reminder the difficulty switches are currently used for:
Left: A = display VB and OS time remaining (only meaningful on real hardware), B = display score
Right: A = freeze screen (used to rev...

Starfield returns, new station cores

Posted by SpiceWare, in Draconian 23 May 2017 · 345 views

Starfield's back.  New station cores are in place, they look awesome!

As a reminder, this is what they looked like in the DPC+ version:

Due to TIA limitations, the station cores may not always be drawn in red when 2+ are shown in the same horizontal zone.  In this screenshot taken with phosphor mode on:

you can see how...

Missile Engine rebooted

Posted by SpiceWare, in Draconian 20 May 2017 · 215 views

While there's still more to do with it, the Missile engine's been rewritten to support line by line HMOVEs. Additionally, it can now use the ball object to draw things.  In all prior builds the ball was limited to drawing the starfield.
Starting from the top:
horizontal player shot
diagonal player shot
diagonal player shot
vertical player shot...

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