Super Mario World Level Format

How Super Mario World configures levels



Byte 1

P - T - F - Y - Y - Y - Y - Y

P="New Page" flag, which basically means that if turned on, this object, and all others passing it, are written to the next page.

0=No

1=Yes

T=Has multiple properties depending on other flags, explained later.

F=Which page to load. Standard objects have two pages to load from, this bit determines which page it will be.

0=Page 1

1=Page 2

Y=Object's Y-coordinate. The higher the value is, the lower the object goes. Past 0x1A, the object starts over on the next page.



Byte 2

S - S - S - S - X - X - X - X

S=Object value, these bit values are the core components of what the object will be. Certain bit values from the first byte can dramatically change the meaning of these bits.

X=Object's X-coordinate. The object travels more to the right the higher the value gets.



Byte 3

V - V - V - V - H - H - H - H

V=Vertical stretch of the object, extends downward.

H=Horizontal stretch of the object, extends to the right.



Standard Objects

If T=0 in byte 1, then the byte format is for standard objects.

There are 0x1F entries for standard objects. Two pages determined by F and 0x0F values determined by S.

For F=0, the S-bit values create the following objects:

0000=Creates extended objects, explained later.

0001=Dark blue water that Mario can swim through.

0010=Invisible coin block that only becomes visible when Mario hits it from below.

0011=Invisible jumping note block that only becomes visible when Mario hits it from below.

0100=Invisible coin that only becomes visible when mario hits a blue POW.

0101=An ordinary coin.

0110=A dirt tile that Mario can walk through.

0111=A water tile that Mario can swim through.

1000=A jumping note block that Mario can jump on.

1001=A turn block, which Mario can hit to start it turning, or break with a spin jump from

   above.

1010=A question block with a coin inside.

1011=A type of block that Mario can pick up and throw.

1100=A black pirhana plant.

1101=A grey cement block that Mario can't walk through.

1110=A brown block that will turn into a coin if Mario hits a blue POW.

1111=A vertical pipe that can have various styles.

   It's styles are determined by the H-bit in byte-3.

	0000-End on top

	0001-End on top, exit enabled

	0010-Double ended

	0011-End on bottom

	0100-End on bottom, exit enabled

	0101-No end

   All the rest are null.

For F=1, the S-bit values create the following objects:

0000=A horizintal pipe that can have various styles.

   It's styles are determined by the V-bit in byte-3.

	0000-End on left

	0001-End on left, exit enabled

	0010-End on right

	0011-End on right, exit enabled

   All the rest are null.

0001=A bullet machine.

   The H-bit is null, this is a vertical-only extendable object.

0010=A slope object that can have various styles.

   It's styles are determined by the H-bit.

	0000-Normal slope left

	0001-Steep slope left

	0010-Gradual slope left

	0011-Normal slope right

	0100-Steep slope right

	0101-Gradual slope right

	0110-Normal slope left, upside down

	0111-Normal slope right, upside down

	1000-Steep slope left, upside down

	1001-Steep slope right, upside down

	1010-Normal slope left

	1011-Steep slope left

	1100-Gradual slope left

	1101-Normal slope right

	1110-Steep slope right

	1111-Gradual slope right

   Note past 1001 is just repeats.

0011=A ledge edge object that can have various styles.

   It's styles are determined by the H-bit.

	0000-Left edge

	0001-Right edge

	0010-Vine

	0011-Solid left and top edge

	0100-Solid left edge

	0101-Solid right and top edge

	0110-Solid right edge

	0111-Left edge with solid top

	1000-Right edge with solid top

	1001-Solid left, very steep top left slope

	1010-Solid right, very steep top right slope

	1011-Solid left+top, left facing bottom edge

	1100-Solid left, left facing bottom edge

	1101-Solid right+top, right facing bottom edge

	1110-Solid right, right facing bottom edge

	1111-Null

0100=A standard type of ledge that Mario can walk on.

0101=A midway/goal point object, used to mark the midway point or the end of the level.

   The H-bit flags the goal point object.

	0000=Midway point

	0001=Goal point.

   Anything higher will still make a goal point.

0110=A purple coin. It acts like a regular coin, except when you hit a blue POW the brick it

   creates still acts like a coin.

0111=A rope/cloud object that Mario can walk on.

   The V-bit flags the clouds.

	0000=Rope

	0001=Clouds

   Anything higher will still make clouds.

1000=Water with an animated surface.

1001=Water with a non animated surface.

1010=Mud/Lava with an animated surface.

1011=A climbing net object with an edge on the top.

1100=A donut bridge that Mario can walk on.

   The V-bit is null, this is a horizontal-only extendable object.

1101=A climbing net object with an edge on the bottom.

1110=A climbing net object with a left/right edge. The top and bottom can automatically adjust for corners.

   The H-bit flags the right edge.

	0000-Left edge

	0001-Right edge

   Anything higher will still make a right edge net.

1111=A skinny vertical pipe/bone/log object.

   The H-bit is null, this is a vertical-only extendable object.



Lunar Magic Use

If T=1 and F=0 in byte 1, then the byte format is for Lunar Magic use. FuSoYa recreated some of the null objects in this index for ExGFX and map16 formating. Some objects are still used, and some will be used for later.

The objects created are determined by the S-bit values in byte 2:

0000=A skinny horizontal pipe/bone/log object.

   The V-bit is null, this is a horizontal-only extendable object.

0001=A wide-scale ground ledge object, often used to span an entire level.

   This object redifines byte 3 to "H H H H H H H H" it has a 0xFF extension.

0010=Loads page 0 of the direct map16 access.

0011=Loads page 1 of the direct map16 access.

   If a map16 page is loaded, then this become a four byte object. The fourth byte determines the tile to load along with the page.

0100=?Ex-BG/FG-GFX?

0101=?ExAnimation?

0110=?Nothing?

0111=?ExSpriteGFX

1000=?Nothing?

1001=Reserved for future use by Lunar Magic.

1010=Reserved for future use by Lunar Magic.

1011=Reserved for future use by Lunar Magic.

1100=Reserved for future use by Lunar Magic.

1101=Reserved for future use by Lunar Magic.

1110=Null

1111=Null



Tileset Specific Objects

If T=1 and F=1 in byte 1, then the byte format is for tileset specific objects.

The objects created are determined by the S-bit values in byte 2:

0000=An ice-blue vertical pipe with the end on top.

   The H-bit is null, this is a vertical-only extendable object.

0001=A frozen turn block that cannot turn.

0010=A blue switch block. This will appear as an outline if the Blue Switch Palace switch

 hasn't been activated yet.

0011=A forest tree top. Place this at Y=10 to 15 for best results.

   The V-bit is null, this is a horizontal-only extendable object.

0100=A solid ledge edge, usually only used in forests

   The H-bit flags the right edge.

	0000-Left edge

	0001-Right edge

   Anything higher will still make a right edge.

0101=A type of ledge that's usually only used in forsets.

0110=A large tree trunk object

   The H-bit is null, this is a vertical-only extendable object.

0111=A small tree trunk object.

   The H-bit flags going behind it.

	0000-Stay in front of it

	0001-Go behind it

   Anything higher will still make you go behind it.

1000=A red switch block. This will appear as an outline if the Red Switch Palace switch

 hasn't been activated yet.

1001=A right facing diagnal pipe.

   The H-bit is null, this is a vertical-only extendable object.

1010=A left facing diagnal ledge.

1011=A right facing diagnal ledge.

1100=A ledge built out of arches that Mario can walk on.

   The V-bit is null, this is a horizontal-only extendable object.

1101=A small top fringe with cloud type ledges.

   It's styles are determined by the H-bit.

	0000-Top cloud fringe

	0001-Top cloud fringe on white

   All the rest are null.

1110=A small side fringe used with cloud type ledges.

   It's styles are determined by the V-bit.

	0000-Left cloud fringe 1

	0001-Left cloud fringe 2

	0010-Left cloud fringe 1 on white

	0011-Left cloud fringe 2 on white

	0100-Right cloud fringe 1

	0100-Right cloud fringe 2

	0101-Right cloud fringe 1 on white

	0111-Right cloud fringe 2 in white

   It repeats afterwards

1111=A bush object available in various styles

   It's styles are determined by the H-bit.

	0000-Bush 1

	0001-Bush 2

	0010-Bush 3

   All the rest are null.



Extended Objects

As said earlier, if the standard object of F=0 is 0, then it is an extnded object, meaning that the third byte determines what the object is. It also means that the object is unextendable.

0x00-0x0F=FATAL! DO NOT USE!

0x10=A small door that Mario can only enter if he's small. But if you place the door one tile 

 above the ground, Mario can only enter it if he's small and riding Yoshi.

0x11=An invisible 1-UP question block that will only become visible when Mario hits it from 

 below.

0x12=Invisible jumping note block that only becomes visible when Mario hits it from below.

0x13=A top left corner edge tile

0x14=A top right corner edge tile

0x15=A small invisible door that Mario can only eneter when he's small, and will only be visible if he hits a blue POW.  And if you place the door one tile 

 above the ground, Mario can only enter it if he's small and riding Yoshi.

0x16=An invisible question block with a coin inside that will only show up when Mario hits a 

 blue POW.

0x17=A green star block with a 1-UP inside. Mario must collect 30 coins in the level before hitting this, or it will only give him another coin.

0x18=A moon that will give Mario 3 extra lives.

0x19=Invisible 1-UP point #1.

0x1A=Invisible 1-UP point #2.

0x1B=Invisible 1-UP point #3.

0x1C=Invisible 1-UP point #4.

0x1D=A red berry that Yoshi can eat. If he eats ten, he'll lay an egg with a mushroom inside.

0x1E=A pink berry that Yoshi can eat. If he eats two, he'll lay an egg with a coin game cloud 

 inside.

0x1F=A green berry that will increase the levels time limit by 20 if Yoshi eats it.

0x20=An always-turning turn block

0x21=

0x22=

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0x97=

0x98=NULL

0x99=NULL

0x9A=NULL

0x9B=NULL

0x9C=NULL (Actually, SnifflySquirrel created an ASM hack which turns this into a Green 

 Switch Palace block wich is solid before the switch is activated)

0x9D=NULL (Actually, SnifflySquirrel created an ASM hack which turns this into a Yellow 

 Switch Palace block wich is solid before the switch is activated)

0x9E=NULL (Actually, SnifflySquirrel created an ASM hack which turns this into a Blue 

 Switch Palace block wich is solid before the switch is activated)

0x9F=NULL (Actually, SnifflySquirrel created an ASM hack which turns this into a Red

 Switch Palace block wich is solid before the switch is activated)



Map16 Objects

Lunar Magic inserts custom map16 tiles past 0x200 all the way to 0xFFF. If T=1 and F=0 in byte 1, and if the second byte is "0 1 1 1 X X X X" then it is an expanded map 16 object. Expnded map16 objects require five bytes. The third byte, once again, determines the stretch. The fourth byte determines the page to load (note, page 0 and page 1 can be accessed this way through hex, but Lunar Magic won't do it). But because there are only 0x0F pages, the first four bits of the byte are meaningless. Lunar Magic will save them as 0. They can be altered, but it won't have an effect. The fifth byte determines which tile will be loaded.