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Author Topic: Skweek (Turbografx-16) Levels and passwords  (Read 800 times)

picolo

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Skweek (Turbografx-16) Levels and passwords
« on: January 31, 2013, 02:06:20 pm »
I'm analyzing the game in the Japanese version sweek for Turbografx-16 and found where the pointers to the levels of the game and where the game's passwords.
But as the game does not use the data to draw level. I leave the information may be interesting to see if anyone can find out.
These offsets refer to where they are using a hex editor data.

Level Passwords:
Offsets: B672-B8C3 (99 levels. 6 characters for each password level = 594 bytes)

Level data pointers:
Offsets: 8200-82C5
Pointer Level 1: C6 40 -> $ 40C6 + $ 4000 + $ 200 = 82C6

Data level 1:
82C6-8317

Data Level 2:
8318-836b
....



February 01, 2013, 02:26:36 pm - (Auto Merged - Double Posts are not allowed before 7 days.)
I think I've found as you draw level through level data.
The level is plotted vertically. It is used for data compression level. 3 bits are used to indicate the number of times to repeat a tile (n+1).
For example: 100 = 4 +1 = 5 times.
5 bits are used to indicate the tile ($00 - $1F).
Each level has 32 rows and 7 columns.

The first bit of level 1 are:
95 61 00 81
$ 95 = 100 (4 +1 = 5) 10101 (Tile $ 15 = yellow box)
$ 61 = 011 (3 +1 = 4) 00001 (Tile $ 01 = blue box)
$ 00 = 000 (0 +1 = 1) 00000 (Tile $ 00 = no box)
$ 81 = 100 (4 +1 = 5) 00001 (Tile $ 01 = blue box)
....

Could anyone make a level editor for the game?
« Last Edit: February 01, 2013, 02:28:53 pm by picolo »