View source for SHP & Graphic info page

SHP (Shape) files contain the information to construct each frame of animation for a [[unit]] or a [[weapon and its effect]]. While [[SEQ & Animation info page|SEQ]] files describe in what order these frames are strung together, Shape files contain the raw data describing how they are loaded from the sprite sheet and constructed on screen.
 
==Section 1==
Using Type 1 SHP as an example:
          |Swim Ptr.  |Atk |SP+ |
 00000000: B2 0E 00 00 54 00 FF 00
these first few bytes dictate some information regarding loading graphic data:
*Swim Ptr. - this number points the game to where the start of the swimming graphics start. for type 1/2/cyoko units, this is about halfway through the file. monsters do not have swimming graphics.
*Atk       - first frame to load from the second half of a unit's spritesheet
*SP+      - first frame to load from SP2 (or greater if iron giant) (UNSURE)

The structure is slightly unique for WEP/EFF files. using WEP1 as an example:
          |Zero       |Fists|Knife|Sword|KnSwd|...
 00000000: 00 00 00 00 00 00 00 00 28 00 28 00 ...
these first few bytes dictate the 0-frame of the weapon to be animated. The data that seems to be related to hats/helmets in this category is actually for bombs and shuriken. (0x2c & 0x2e)

==Section 2==
Using Type 1 SHP as an example:
           Frame 1    |Frame 2    |Frame 3    |Frame 4    |...
 00000008: 00 00 00 00 06 00 00 00 0C 00 00 00 12 00 00 00 ...
These are all pointers to each frame. This section is 0x400 bytes long, except for WEP/EFF, in which it is 0x800 bytes long. (0xff frames, or 0x1ff frames.)

==Section 3==
Using Type 1 SHP as an example:
           Size |Frame 1          |Frame 2          |...
 00000408: A8 0A 00 00 FC FC DE 02 00 00 EF DD 00 2C ...
*Size - this is the size of the block of frame data.
This information consists of the data to compile each frame. (see Below.)

==Noteworthy RAM locations==
 0x800962f4 - Location of first unit sprite loaded section 1 + 2 (minus swimming sprite pointer)

 0x800bdf0c - location of first WEP/EFF loaded section 1 + 2 (may be variable?)

 0x800946c8 - Graphic size pairs (words, only loaded in pairs, height and width)
 
==Frame Data Layout==
each byte here is represented in bit-combined form, as that is how the data is constructed (0x7 for example means all 3 bits 0x1, 0x2, and 0x4 contribute to the information)
 0x00: 
 	- 0x07 - No. graphics to load
 	- 0xf8 - pointer to pre-existing Y rotation
 0x01
 	- 0x61 - VRAM flags for this frame (needs investigating, 0x40, 0x20)
 		- 0x60 - transparency type (see [[P00 GetTpage]])
 		- 0x01 - transparent flag
 	- 0x1e - ?
 	- 0x80 - ?
 0x02: x shift
 0x03: y shift
 0x04 - 0x05 (values are when loaded as a half word)
  	- 0x001f - load location of top-left corner in x tiles
  	- 0x03e0 - load location of top-left corner in y tiles
  	- 0x3c00 - reference to pre-existing x/y size (in tiles, see above)
  	- 0xc000 - reversal bytes
 0x02 - 0x05 are repeated depending on how many graphics are loaded.