Commit Graph

77 Commits

Author SHA1 Message Date
a8319e9fb7 refactoring: macro for memset, memcpy, mov_word_mem 2021-11-07 22:52:31 +01:00
6e0d335b83 polishing 2021-11-07 21:09:27 +01:00
157c8598e6 doc: custom semi-graphic chars 2021-11-07 20:58:02 +01:00
db8707bebf refactoring: reorganize syntax sugar for segments handling 2021-11-07 20:37:44 +01:00
f67017c9a6 makefile: remove unused variable 2021-11-07 20:37:44 +01:00
85ac2cf971 refactoring: wip: move code segments 2021-11-07 20:37:44 +01:00
51477cff9d some code documentation + memset macro 2021-11-07 20:37:34 +01:00
b19754f3d5 "snake" movement is more fluid
but not perfect, yet
2021-06-01 21:53:34 +02:00
61515025a5 stable bounce 2021-04-15 14:33:29 +02:00
d13e88b0fd moustache notation 2021-04-14 11:24:36 +02:00
493d69f669 magic moustaches fixed 2021-04-14 09:50:46 +02:00
a41ae70993 proper intro 2021-04-14 00:30:42 +02:00
05ed319d93 new demo/intro draft 2021-04-13 23:19:47 +02:00
2c4130899c updated memory map with new sid 2021-04-12 23:31:21 +02:00
c8199e7144 updated sid tune
new sid tune is bigger than 4k, so charset had to be moved
now (part of) first half of the charset actually is used by the sid
and ignored by the VIC; chars had to be redefined
2021-04-12 23:28:34 +02:00
a82c9e94fe disk and tape loader
the loader is a small program with liblzg only, which loads data from
the snake.pack.lz (from either disk or tape), inflates the ram, and
starts the game
2021-04-12 22:00:04 +02:00
2f6a4e6735 cartridge + prg binary added in distribution directory 2020-11-21 14:57:53 +01:00
f81f087a13 fixed plain .prg version
actually it takes a "lot" of space more, but it is not a problem and it works,
anyhow a future version with a "fast" loader is required
2020-11-14 19:12:10 +01:00
55e0a550ea fixed font name 2020-11-14 17:40:30 +01:00
999844460a ported lzgmini_6502 for dasm, and embedded in this game's code 2020-10-04 20:58:08 +02:00
bb17b78251 updated LICENSE 2020-10-04 17:59:30 +02:00
fa2269afb8 compression routine for cartridge version, temporarily deprecates tape version 2020-10-04 17:51:35 +02:00
d61a7bf284 dual version: prg + cartridge (8k) 2020-09-15 15:10:09 +02:00
8b8cb19651 current development repository added to readme 2020-04-23 19:01:05 +02:00
1a6f4bb078 link to the binary file 2020-04-23 12:34:23 +02:00
f426a6d4d7 added distribution binary file .prg 2020-04-23 12:32:51 +02:00
e67a84d669 small fix 2020-04-23 12:29:43 +02:00
e548f48e72 added cute screenshot 2020-04-23 12:26:19 +02:00
72d5e6b33e to pass the level, you have to get at least 0x40 (64) points 2020-04-23 12:10:08 +02:00
541f3225c1 added some levels 2020-04-08 11:54:08 +02:00
86ec781787 levels rotation (first -> second -> ... -> last -> first -> ...) 2020-04-08 11:36:18 +02:00
977c3cf0e6 printString subroutine generalization 2020-04-08 11:03:03 +02:00
4498d045de level change + score management 2020-04-08 10:54:54 +02:00
cd1820d834 level introduction screen 2020-04-08 09:15:25 +02:00
22a5feb2a1 level loading colors with memory saving
loading colors was done in a dummy way by reading color of each tile
from the RLE array; but actually a tile always have the same color, then
this info is redundant; anyhow the character set had to be reshaped
properly in order to make easy infer the tile color from the tile value
2020-04-06 22:53:28 +02:00
90cc0dbabd final restyling of the custom charset 2020-04-06 22:00:15 +02:00
fcdea3cc08 charset organization improved + doc 2020-04-06 18:44:54 +02:00
c33178ceac some better colors 2020-04-06 16:22:48 +02:00
e828776a14 tiles loaded from level RLE binary now have color 2020-04-02 18:12:39 +02:00
5f85203028 commented code for level loading 2020-04-02 17:09:57 +02:00
5fb94c3162 level layout is unpacked on screen correctly 2020-04-02 16:17:48 +02:00
f628645740 first level draft - level txt parser 2020-04-02 01:13:10 +02:00
70b2b7ad47 repository organization fix 2020-04-01 21:11:08 +02:00
de38d95b74 Unused bug tracker 2018-09-22 11:10:16 +02:00
5d9248e580 Big memory and repository reorganization 2018-09-22 10:58:10 +02:00
868d1e6253 Moved gamereset routine to external file 2018-09-16 18:20:48 +02:00
fcc479eaed Tabs to space, official vim adoption 2018-09-14 16:22:01 +02:00
bb86656068 Moved costants to external file 2018-09-14 15:58:31 +02:00
68456fe39e Memory segments relocation and exposed bugs
- Declared uninitialized segment in zero page: used assembler directives
to reduce errors probability and improve code maintenance; now zeropage
variables addresses are automagically computed by assembler
- Added other debug messages, and rewritten some cycles for good readability and good software engineering
- Fixed more uninitialized stucture bug (maybe I had some sawdust in my
brain when I did this?)
- Fixed concurrency bug in home screen
2018-09-14 15:23:21 +02:00
299eee1257 Reorganized memory
Now program takes less space in RAM.
All variables, costants and Lists are moved before the SID song,
in a previously unused space (BASIC RAM).
SID song edit has been changed:
	- same song but slightly different
	- takes up a bit less than 4k
	- more catchy :-)
	- perfectly fits in $1000-$2000 and allows...
...the new custom charset to be put at $2000!
	- Taken TGGS font and properly customized with tiles
Now actual program starts at $2800.

Also added some useful code for assembler to output debug infos when
assembling with -DDEBUG=1

In the meanwhile discovered tremendous subtle bug due to uninitialized
structure (listX and listY). Fixed.

Memory map now is:
	+-------------------------------+
0000	| things in zero page		|
	|	and low RAM		|
	+-------------------------------+
0800	| BASIC autostart		|
	| then data (variables,		|
	|	costants and strings)	|	<-- this can be done better using segments. Reminder for the future.
	|				|
	+-------------------------------+
0E00	| listX				|
	+-------------------------------+
0F00	| listY				|
	+-------------------------------+
1000	| SID song			|
	|				|
	|				|
	+-------------------------------+
2000	| TGGS Custom font charset	|
	|				|
	+-------------------------------+
2800	| ACTUAL CODE			|
	|				|	<-- plus some garbage data, see above (segments TODO)
	.				.
	.				.
2018-09-10 21:39:53 +02:00