Avalon: Routine at D04B

D04B: Creature collision check with room boundary and Maroc

Used by the routines at CDD7, CED4, CF0B, CF3E and CF58.
Check if a creature has collided with a room boundary or Maroc: Uses the generic room boundary check routine at E039 which checks for collision with the room walls, and if so, adjusts the creature's position Checks if a creature is at Maroc's position on screen/in room If so, reduce Maroc's energy based on the damage that creature type deals (last byte of creature data set at 6CB4) If the creature is a WRAITH, check if the WRAITHBANE spell is active & if so destroy the wraith
D04B	LD A,($EC9C)	FREEZE spell timer counter (> 0 means the FREEZE spell is in effect)
D04E	CP $00
D050	JR NZ,$D090	Maroc doesn't lose energy if he touches stationary creatures when the FREEZE spell is in effect
Check creature is within room wall boundary, adjusting if needed:
D052	LD A,($EB4A)	Creature's vertical pixel position in room
D055	ADD A,$08	Adjust the vertical point to check for collisions 8 pixels down, towards the middle of the creature, rather than the top
D057	LD E,A	Store in E register, which is what the room boundary is checked against
D058	CALL $E039	Run room boundary checks for creature, adjusting position accordingly if needed
Check collision detection with Maroc
D05B	LD C,$00	Collision event type 0 = collision with Maroc
D05D	CALL $DFCD	Run collision check
D060	CP $00	The A register is returned with 1 = collision, or 0 = no collision
D062	JP Z,$D27D	If no collision, can jump out of the entire routine here
The next routine follows if a creature has collided with Maroc