Avalon: Routine at 59389

There are 5 sorts of spell type, the value stored in the current spell data byte at 60359.

MOVE spell, which switches player control to Maroc (byte value = 1)
Spell which switches player control to a graphic/icon cursor, e.g. SERVANT, MISSILE, OPEN (byte value = 2)
Missile type spells that don't deactivate after a bolt is fired, reserved just for ELECTRIC and FLAME spells (byte value = 3)
Ongoing effect spell, e.g. SHIELD, WRAITHBANE (byte value = 4)
Instant effect spell, e.g. ENERGIZE, FREEZE, PORTAL (byte value = 5)

This routine checks for spell type, and jumps to the routine that deals with it.

Check for 'active effect' spell (type = 4):


There are 5 sorts of spell type, the value stored in the current spell data byte at 60359. MOVE spell, which switches player control to Maroc (byte value = 1) Spell which switches player control to a graphic/icon cursor, e.g. SERVANT, MISSILE, OPEN (byte value = 2) Missile type spells that don't deactivate after a bolt is fired, reserved just for ELECTRIC and FLAME spells (byte value = 3) Ongoing effect spell, e.g. SHIELD, WRAITHBANE (byte value = 4) Instant effect spell, e.g. ENERGIZE, FREEZE, PORTAL (byte value = 5) This routine checks for spell type, and jumps to the routine that deals with it. Check for 'active effect' spell (type = 4):
59389	LD A,(60359)
59392	CP 4
59394	JP Z,59933	Jump here if so, as casting this sort of spell may be cancelling an existing active spell.
Check for other types of spell:
59397	LD A,(60134)	Get spell number counter (for spell list at 28604)
59400	LD (60140),A	...and put in temporary store
59403	LD A,(60359)	Get spell type
Check for MOVE spell
59406	CP 1
59408	JR NZ,59417
59410	LD A,32	Move spell selected. Set the spell selection byte accordingly.
59412	LD (60129),A
59415	JR 59474
Check if spell is an 'instant effect' spell (ENERGIZE, HAIL, WAYSTONE, FREEZE, SUMMON, PORTAL, MESSAGE):
59417	CP 5
59419	JR NZ,59430
Spell is an 'instant effect' spell. These spells have an energy cost to their casting (positive in the case of ENERGIZE).
59421	LD A,(60358)	Get energy cost of spell. This is the second byte in each spell set at 28156, e.g.: ENERGIZE = +64 HAIL = -1 WAYSTONE = -4 FREEZE = -4 SUMMON = -4 PORTAL = -8
59424	CALL 58316	Reduce/increase Maroc's energy
59427	JP 60018	Reduce/increase Maroc's energy
The spell cast needs a controllable cursor (e.g. SERVANT, OPEN, MISSILE, FIND)
59430	LD A,1
59432	LD (60240),A	Set graphic address pointer frame offset (1 = no offset, start at first graphics frame)
59435	LD (60569),A	Copy to controllable spell cursor/graphic frame buffer
59438	LD A,(60364)	Get graphic number for controllable cursor. This will either be a pointer to the servant graphic (38931/41180) or the flashing eye cursor (38935/41221)
59441	CALL 57538	Setup graphics (for servant or eye cursor)
Copy/initialize a few spell-related bytes in the spell data buffer:
59444	LD HL,(60241)	Get cursor graphics address pointer (38931/38935)
59447	LD (60564),HL	...and store in temporary game buffer
59450	LD A,(60239)	Pre-graphics data byte, indicating frames & if graphic can be 'flipped'
59453	LD (60570),A
59456	LD A,40	Starting vertical position for the controllable graphic, in pixels, from the top of the playing area
59458	LD (60159),A
59461	LD A,112	Starting horizontal position for the controllable graphic, in pixels, from the left of the playing area
59463	LD (60160),A
59466	LD A,48	Spell selection status - 48 = servant/cursor controllable spell
59468	LD (60129),A
59471	JP 59689