Difference between revisions of "Sonic the Hedgehog CD/MMD Tweaking"
From Sonic Retro
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==Maximum velocity and accelleration (with Super sneakers)== | ==Maximum velocity and accelleration (with Super sneakers)== | ||
$A968: | $A968: | ||
− | move.w | + | move.w #$C00,($FFFFF760).w ; Set maximum velocity to $C00 |
− | move.w | + | move.w #$18,($FFFFF762).w ; Set maximum accelleration to $18 |
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==Number of rings you get when you get a ring== | ==Number of rings you get when you get a ring== |
Revision as of 07:35, 11 August 2008
Here are some locations in an European Sonic CD level MMD which contain tweakable code (in 68k assembly).
Contents
- 1 Maximum rings allowed
- 2 Lowest number of rings required to access the special stage
- 3 Number of rings you get when you break the ring monitor
- 4 Invincibility duration time
- 5 Super Sneakers duration time
- 6 Maximum velocity and accelleration
- 7 Maximum velocity and accelleration (with Super sneakers)
- 8 Number of rings you get when you get a ring
Maximum rings allowed
$AEFA: move.w (word_FF1512).l,d1 ; Move number of rings into d1 cmpi.w #$3E8,d1 ; Compare $3E8 (1000) with d1 (number of rings) bcs.s loc_20AF10 ; If the number of rings is < 1000, branch move.w #$3E7,d1 ; Move $3E7 (999) into d1 move.w d1,(word_FF1512).l ; Move d1 back to the address where the number of rings is at
Lowest number of rings required to access the special stage
$D50C: cmpi.w #$32,(word_FF1512).l ; Compare 50 with the number of rings bcc.s loc_20D51C ; If number of rings >= 50, allow entrance to the special stage. jmp sub_20788C ; Otherwise jump here
Number of rings you get when you break the ring monitor
$A88E: addi.w #$A,(word_FF1512).l ; Add 10 to the current number of rings
Invincibility duration time
$A8F8: move.b #1,(byte_FF151F).l ; Enable invicibility move.w #$4b0,($ffffd032).w ; Set the invincibility duration time to $4B0
Super Sneakers duration time
$A95A: move.b #1,(byte_FF1520).l ; Enable super sneakers move.w #$4B0,($FFFFD034).w ; Set the super sneakers duration time to $4B0
Maximum velocity and accelleration
$4082: move.w #$600,($FFFFF760).w ; Maximum velocity move.w #$C,($FFFFF762).w ; Maximum accelleration
Maximum velocity and accelleration (with Super sneakers)
$A968: move.w #$C00,($FFFFF760).w ; Set maximum velocity to $C00 move.w #$18,($FFFFF762).w ; Set maximum accelleration to $18
Number of rings you get when you get a ring
$9F1A: addq.w #1,(word_FF1512).l ; Add 1 to number of rings