Botwoon

Consists of $0F parts total (including head and tail)


$0F78 - enemy pointer
$0F7A - enemy X pos (from room pop)
$0F7C - enemy sub-pixel X pos. Often unused.
$0F7E - enemy Y pos (from room pop_)
$0F80 - enemy sub-pixel Y pos. Often unused.
$0F82 - enemy collision width (1/2 pixel value from center)
$0F84 - enemy collision height (1/2 pixel value from center)
$0F86 - Property bits (from room pop: prop bits) (FEDC BA98 7654 3210)
        F makes their hitbox solid to Samus, 
	E respawns the enemies if they die,
        D tells the game to process the enemy's graphic AI, 
	C makes the enemy block Plasma shots
        B makes the enemy process even when offscreen, 
	A makes the enemy ignore Samus/Projectiles, 
        9 instantly deletes the enemy, 
	8 makes the enemy invisible?
        1 and 0 used by geemers as orientation
$0F88 - extra property bits (FEDC BA98 7654 3210)
        F signifies that the enemy processed a new enemy instruction with $0F92, update graphics.
        2 enables multiple hitbox/reactions (indepth $0F8E)
        0 disables processing of the enemy's movement AI, I think. Isn't disabled if 0F86 A is set (ignore Samus/Projectiles)
$0F8A - AI handler. Lowest bit set determines which AI pointer in enemy data to use
        (None = 18, 1 = 1A, 2 = 1C, 4 = 1E, 8 = 20)
$0F8C - Enemy HP
$0F8E - Main graphics/hitbox pointer
          Byte 0 is a counter of some sort. Byte 1 is unused, I think.
          Bytes 2-3 are X pixel offset. Bytes 4-5 are Y pixel offset.
          Bytes 6-7 are a pointer to a tilemap, I think. Bytes 8-9 are a pointer to collision detection:
            Byte 0 is a counter of some sort. Byte 1 is unused, I think.
            Bytes 2-3 are X pixel offset to left border. Bytes 4-5 are Y pixel offset to bottom border.
            Bytes 6-7 are X pixel offset to right border. Bytes 8-9 are Y pixel offset to top border.
            Bytes A-B are for collisions with Samus. Bytes C-D bytes are pointer to code for collision with projectiles.
            Bytes 2-D repeat 'byte 0' times. Total length is 2 + (n*C), n = byte 0.
          Bytes 2-9 repeat 'byte 0' times. Total length is 2 + (n*8), n = byte 0
$0F90 - ??? (Used by Mochtroid) (LN Chozo uses it as a loop counter)
$0F92 - pointer to AI structure. Acts like PLMs instruction pointer ($1D27,X). Positive Enemy instructions set delay timer and 0F8E, and highest bit of 0F88
$0F94 - action delay (apparantly) (Used with above?)
$0F96 - Which SNES palette the enemy uses (when drawing the sprite, from enemy set number). ORAed with other data to stick directly into OAM.
$0F98 - Index to graphics in VRAM
$0F9A - Layer control
$0F9C - Set to (0F78),#$0D + #$08 when shot? This - 8 = timer for using Hurt AI.
$0F9E - Enemy frozen timer
$0FA0 - Counter, forces a different kind of processing. Used when hit by Plasma Beam (powerbombs?)
$0FA2 - A value that works concurrently with $0FA4 to modify vertical position of sprite
$0FA4 - Value that determines if sprite vertical position is lowered or raised (with $0FA2).
	For many enemies it's used as come sort of counter though
$0FA6 - Bank of enemy data
$0FA7 - 
$0FA8 - initialized to #$0018, used as counter to spawn projectile #$EBA0 (run 14 (dec) times)
$0FAA - 
$0FAC - initialized to #$94BD (table of some sort (value of #$0018))
$0FAE - general AI variable run routine. (initialized to #$9878 (unknown routine))
$0FB0 - initialized to #$9BB7 (unknown routine)
$0FB2 - initialized to #$9DC0 (unknown routine)
$0FB4 - Speed in SMILE
$0FB6 - Speed2 in SMILE

$8000 - (hide timer?) initialized to #$0100
$8002 - 
$8004 - hit counter?  die if #$0100 or greater
$8006 - used for explosions during breaking wall (height value for explosions while breaking wall?)
$8008 - used for explosions during breaking wall (timer delay between explosions)
$800A - used for explosions during breaking wall (secondary timer delay between explosions, works concurrently with $8008)
$8010 - 
$801E - never initialized
$8020 - set to #$0001 by routine $96C6
$8026 - initialized to #$0001
$8028 - initialized to #$0001
$802C - initialized to #$FFFF
$802E - initialized to #$0000
$8030 - initialized to #$94BB (table of some sort (value of #$0002))
$8032 - initialized to #$0001
$8036 - part control graphic index?  Initialized to #$9389 (blank tilemap)
$8038 - never initialized
$803C - never initialized
$803E - never initialized


$8800 - 
$8816 - 
$881C - enemy palette, divided by 16, plus #$0100.
$881E - damage palette index (used for palette shift)
$8820 - part control, initialized to enemy x position
$8822 - part control, initialized to enemy y position
$8824 - part control, initialized to enemy x position
$8826 - part control, initialized to enemy y position
$8828 - part control, initialized to enemy x position
$882A - part control, initialized to enemy y position
$882C - part control, initialized to enemy x position
$882E - part control, initialized to enemy y position
$8832 - 
$8836 - initialized to enemy HP
$8838 - initialized to 1/2 enemy HP
$883A - initialized to 1/4 enemy HP
$883E - timer between death and wall breaking?




routines used in AI:

$96C6 - if both $801E and $803C are set, STA #$0001 to $8020, #$9A46 to $0FAE,x
	(general AI variable run routine) #$00F0 to $8004 (hit counter?), and 
	zero $801E and $803C.
$982B - damage palette shift routine
$9878 - Hide timer? if negative set $0FAE,x to #$989D
$989D - if $8038 is set, run series of JSR's, if not then zero $8038 and $12,
	if $8026, $8032, or $803E are negative then branch (skip random number then 
	AND #$000E STA $12), zero $8832 load $12 into x and JMP $988D,x (will either
	be $98EC or $9913)
	(series of JSR's: $0FB0,x (initialized to 9BB7)
	$9C7B: $9C90: $0FB2,X (initialized to #$9DC0): 
	$9D4D: $9D3C: $9F93)
$98EC - sets $0FAE,x to #$99A4; $0FB0,x to #$E250; zeros $8002; $0FB2,x to #$9DC0;
	zeros $8816, then JSR $9933. 
$9913 - sets $0FAE,x to #$99E4; $0FB2,x to #$9E7D; $8002 to #$0030; makes sure
	#$0400 is NOT set in property bits
$9933 - 
$99A4 - 
$99E4 - 
$9A46 - INC $8004 (hit counter?), if greater than or equal to #$0100 set 
	$0FAE,x to #$9A5E
$9A5E - fall and explode when dead routine:
	adjusts enemy y position, if less than #$00C8 add #$00C0 to $8010,
	if not, store #$C8 to enemy Y, #$9ACA to $0FAE (general AI variable 
	run routine) and spawn bomb blast gfx and sound, make invisible
$9ACA - check death/wall break timer, when timer is out set #$9AF9 to $0FAE 
	(general AI variable run routine) and JSR $9ADD
$9ADD - run Wall break PLM, JSL $A0BA3E (spawn item drops?) and set $8006, $8008, 
	and $800A to #$0000
$9AF9 - if $8006 is over #$C0 set boss bit, delete enemy, and change music.  If 
	over #$40, branch to $9B22.  Otherwise JMP to $9BAD
$9B22 - generates explosions for breaking wall 
$9BAD - just incriments $8006
$9BB7 - 
$9C7B - 
$9C90 - 
$9D3C - 
$9D4D - 
$9DC0 - 
$9E7D - 
$9F93 - 
$E250 -