How to extend the water tables in Sonic 2

Discussion in 'Approved' started by Dani, Feb 9, 2009.

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  1. Dani

    Dani Newcomer Trialist

    Joined:
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    (Originally found at Sonic Retro Wiki)


    If you have tried to add water to a zone ID between $00 and $07, you may have noticed strange effects with the water, such as the entire level filling with water or no water showing up at all (only the water line). To correct this problem, several changes need to be done to your disassembly. (This guide will use the Xenowhirl 2007 Sonic 2 disassembly; other disassemblies may vary.)


    First, find the section marked loc_402C and find the following line:



    subi.w #$800,d0



    and either comment it out or delete it entirely.


    Next, locate the following:



    WaterHeight:
    dc.w $600, $600, $600, $600


    dc.w $600, $600, $600, $600


    dc.w $600, $600, $600, $710


    dc.w $600, $600, $410, $510



    and change it to:



    WaterHeight:
    dc.w $600, $600; EHZ


    dc.w $600, $600; Zone 01


    dc.w $600, $600; WZ


    dc.w $600, $600; Zone 03


    dc.w $600, $600; MZ


    dc.w $600, $600; MZ3


    dc.w $600, $600; WFZ


    dc.w $600, $600; HTZ


    dc.w $600, $600; HPZ


    dc.w $600, $600; Zone 09


    dc.w $600, $600; OOZ


    dc.w $600, $600; MCZ


    dc.w $600, $600; CNZ


    dc.w $600, $710; CPZ


    dc.w $600, $600; DEZ


    dc.w $410, $510; ARZ


    dc.w $600, $600; SCZ



    Next, in the section marked DynamicWater, locate the following line:



    subi.w #$800,d0



    and either comment it out or delete it entirely.


    Next, locate this section:



    Dynamic_water_routine_table:
    dc.w DynamicWaterNull - Dynamic_water_routine_table; 0


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 3


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 4


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 5


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 6


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 7


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 8


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 9


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 10


    dc.w DynamicWaterCPZ2 - Dynamic_water_routine_table; 11 ; the only one that does anything


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 12


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 13


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 14


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 15



    and replace the section with:



    Dynamic_water_routine_table:
    dc.w DynamicWaterNull - Dynamic_water_routine_table; EHZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; EHZ2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 01-1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 01-2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; WZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; WZ2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 03-1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 03-2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; MZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; MZ2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; MZ3


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 05-2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; WFZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; WFZ2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; HTZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; HTZ2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; HPZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; HPZ2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 09-1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; 09-2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; OOZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; OOZ2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; MCZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; MCZ2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; CNZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; CNZ2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; CPZ1


    dc.w DynamicWaterCPZ2 - Dynamic_water_routine_table; CPZ2 ; the only one that does anything


    dc.w DynamicWaterNull - Dynamic_water_routine_table; DEZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; DEZ2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; ARZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; ARZ2


    dc.w DynamicWaterNull - Dynamic_water_routine_table; SCZ1


    dc.w DynamicWaterNull - Dynamic_water_routine_table; SCZ2



    Once these changes have been made, you will be able to add water to any zone in Sonic the Hedgehog 2. If you run into any problems, please let me know. ^_~
     
    Dani, Feb 9, 2009
    #1
  2. Irixion

    Irixion Well-Known Member Member

    Joined:
    Aug 11, 2007
    Messages:
    670
    Location:
    Ontario, Canada
    I Love you :). THANKS for this guide, you have no idea how much this will help me <.<
     
    Irixion, Feb 9, 2009
    #2
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