Commit Graph

125 Commits

Author SHA1 Message Date
Jeremy Rand
63fb8a0e22 Fix a bug in the _collision macro where the mask was not being used. Remove an unnecessary and instruction when drawing heads and body segments. 2020-07-14 01:49:07 -04:00
Jeremy Rand
a718c8caef Lots of general sprite cleanup. Add sprites for the ship and the shots and include collision detection in those routines. I think all of the drawing code is done now, maybe? 2020-07-09 22:55:08 -04:00
Jeremy Rand
bc91429e3a Finish the centipede segment sprites. 2020-07-09 00:27:32 -04:00
Jeremy Rand
9e06ec991b Add a bunch more centipede segment sprites. 2020-07-06 00:01:44 -04:00
Jeremy Rand
5de91ba0ec Add the left body segment sprites. 2020-07-04 02:59:42 -04:00
Jeremy Rand
7f33c3d400 Create all of the left facing head segment sprites. 2020-07-04 02:45:53 -04:00
Jeremy Rand
72265face9 Start adding centipede head segment sprites. 2020-07-03 02:04:27 -04:00
Jeremy Rand
e5378bf5cb Add some info to the sprite design document about my plans for handling clipping. 2020-07-02 23:06:02 -04:00
Jeremy Rand
598934446b Finish the spider sprites and the explosion sprites. Remove "and" masking from the spider and scorpion sprites because they will be drawn first and will not overlap with anything on the foreground. Split the sprite.s file into a series of smaller files for each type of sprite. Add a file to describe the overall plan for the design of the sprites. 2020-07-02 22:57:52 -04:00
Jeremy Rand
e7ca4d4624 More spider sprites. 2020-07-01 13:53:42 -04:00
Jeremy Rand
5371b4e19e Add the first spider sprite. 2020-06-30 23:38:27 -04:00
Jeremy Rand
0393cf6bf6 Finish the sprites for the scorpion. 2020-06-30 23:17:55 -04:00
Jeremy Rand
cc03c8a0a0 Lots of optimization of the sprite code. More scorpions going in the right direction. 2020-06-29 23:45:40 -04:00
Jeremy Rand
3fce9d866a Change the way colour works to make it cheaper to overwrite any background colour with green which will make drawing centipede segments faster. 2020-06-28 22:21:32 -04:00
Jeremy Rand
1b1506aac8 Finish the left facing scorpion sprites. Still need to do the mirror image for right facing. 2020-06-23 23:38:47 -04:00
Jeremy Rand
e34ea58cc1 Add some more sprites for the scorpion. 2020-06-23 01:52:06 -04:00
Jeremy Rand
964da82807 Add some sprites for the scorpion. 2020-06-22 23:45:25 -04:00
Jeremy Rand
936b7315ce Finish the sprites for the flea and the 300, 600 and 900 score notices. 2020-06-18 23:35:20 -04:00
Jeremy Rand
eb480d76d8 Finish sprites for numbers and start work on the flea. 2020-06-18 00:03:41 -04:00
Jeremy Rand
d336ae86ff Finish the sprites for the letters. 2020-06-17 02:16:04 -04:00
Jeremy Rand
4766662de1 Add a readme and license file. 2020-06-17 00:02:46 -04:00
Jeremy Rand
fd72e9f18b Start coding up the sprite code. 2020-06-16 23:59:12 -04:00
Jeremy Rand
ceb2d00ff0 Add some code to set the scan line control bytes and the colour palette for all of the different levels of the game. 2020-06-16 00:02:20 -04:00
Jeremy Rand
a9810ecb75 Well, it launches, clears the screen, waits for a key and then quits. But it is a start. 2020-06-10 23:51:53 -04:00
Jeremy Rand
dbe7e7ad3f Initial Commit 2020-06-10 21:47:00 -04:00