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Routines |
| Prev: E699 | Up: Map | Next: E753 |
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Used by the routine at E641.
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When fire is pressed in a scroll list, the spell is initiated, and the spell text description displayed on the scroll.
The user has to re-confirm the selection by pressing fire again, which activates the spell.
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| E6FA | LD A,$00 | Reset the fire control value (back to 0) | ||
| E6FC | LD ($EB32),A | |||
| E6FF | CALL $DEF9 | Clear the scroll area | ||
| E702 | LD HL,($EAE7) | Address pointer for selected spell at 6DFC | ||
| E705 | LD DE,$EBC5 | Data store/buffer for selected spell | ||
| E708 | LD BC,$0010 | |||
| E70B | LDIR | Copy the 16 bytes over | ||
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Print the spell name at the top (first line) of the scroll:
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| E70D | LD HL,$EBCD | Address pointer to the current selected spell name | ||
| E710 | LD ($EAA1),HL | Store text address pointer for printing the spell name | ||
| E713 | LD HL,$5048 | Set the screen display address to the top left of the scroll | ||
| E716 | LD ($EAA4),HL | ...and store. | ||
| E719 | LD A,$08 | Each spell name is 8 characters long (includes spaces for padding if name is shorter) | ||
| E71B | LD ($EAA3),A | |||
| E71E | CALL $E2E0 | Print the spell name text on the scroll | ||
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Set display address and point at the spell icon graphics. Determine how many spell 'charges' are left.
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| E721 | LD A,$83 | Offset for graphics address table at 97C3. Graphics pointer to spell icon graphics at AEE7. | ||
| E723 | CALL $E0C2 | Setup graphics data, DE register pair now points to start of spell icon graphic | ||
| E726 | LD HL,$5050 | Set position for spell icon at top of scroll | ||
| E729 | LD A,($EBC8) | Counter for number of spell 'charges' | ||
| E72C | CP $04 | If the spell has 4 or more charges... | ||
| E72E | JR C,$E732 | |||
| E730 | LD A,$03 | ...Set the number to 3, as a maximum of 3 icons are printed on the scroll | ||
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Print the spell charge icons at the top of the scroll:
Up to 3 icons are drawn. If the player has 4 or more 'charges' for a spell, three icons are displayed.
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| E732 | LD ($EAC7),A | Store the counter for the spell charge icons (up to 3) | ||
| E735 | INC L | Move right one character square | ||
| E736 | LD ($EAA4),HL | Store the screen display address pointer | ||
| E739 | EX DE,HL | Switch into DE register | ||
| E73A | CALL $DD24 | Draw the spell charge icon at the top of the scroll | ||
| E73D | LD HL,($EAA4) | |||
| E740 | INC L | Move right one character square | ||
| E741 | LD A,($EAC7) | Retrieve and decrement the spell charge counter | ||
| E744 | DEC A | |||
| E745 | JR NZ,$E732 | Has it reached zero? If not, go back and draw the next icon | ||
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This routine draws the appropriate flashing icon for the selected spell in the top right of the scroll:
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| E747 | LD A,($EBCB) | Graphics pointer offset for the icon graphic to use for this spell (icons at A17E) | ||
| E74A | CALL $E0C2 | Setup graphics ready to draw | ||
| E74D | LD DE,$5057 | Set screen display address position to draw icon (top right of scroll) | ||
| E750 | CALL $DD24 | Draw the spell icon | ||
| Prev: E699 | Up: Map | Next: E753 |