Changes: Opacity/Placement

Revision as of 18:15, 19 January 2020

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Many transparent blocks exhibit unique behavior when it comes to being placed or being placed on. This page only covers blocks that exhibit unique behavior. For example, glass is not covered as everything can be placed on it. In addition, only blocks that need some sort of support are covered in the columns.

Placement on top of blocks

Block		Block Being Placed
Block		Button	Lever	Pressure Plate	Rails	Redstone	Sign	Snow	Torch	Cake	Doors	Lantern	Repeater	Comparator	Bell	Scaffolding	Sea Pickle	Banner
Block Being Placed On
	Leaves	No	No	No	No	No	Yes	Yes	No	Yes	No	No	No	No	No	No	Yes	Yes
	Ice	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
	Anvil	No	No	Yes	No	No	Yes	No	Yes	Yes	No	Yes	No	No	No	No	Yes	Yes
	Bamboo	No	No	No	No	No	Yes	No	No	Yes	No	No	No	No	No	No	Yes	Yes
	Brewing Stand	No	No	No	No	No	Yes	No	No	Yes	No	No	No	No	No	No	No	Yes
	Cactus	No	No	No	No	No	Yes	No	No	Yes	No	No	No	No	No	No	No	Yes
	Cauldron	No	No	Yes	Yes	No	Yes	No	No	Yes	No	No	Yes	Yes	No	No	Yes	Yes
	Walls	No	No	Yes	No	No	Yes	No	Yes	Yes	No	Yes	No	No	No	No	Yes	Yes
	Doors	No	No	No	No	No	Yes	No	No	Yes	No	No	No	No	No	No	Yes	Yes
	Dragon Egg	No	No	Yes	No	No	Yes	No	Yes	Yes	No	Yes	No	No	No	No	Yes	Yes
	End Rod	No	No	Yes	No	No	No	No	Yes	No	No	Yes	No	No	No	No	Yes	No
	Farmland	No	No	No	No	No	Yes^{[n 1]}	No	No	Yes^{[n 1]}	No	No	No	No	No	No	No	Yes^{[n 1]}
	Fences	No	No	Yes	No	No	Yes	No	Yes	Yes	No	Yes	No	No	No	No	Yes	Yes
	Fence Gates	No	No	Yes	No	No	Yes	No	Yes	Yes	No	Yes	No	No	No	No	Yes	Yes
	Glass Panes	No	No	Yes	No	No	Yes	No	Yes	Yes	No	Yes	No	No	No	No	Yes	Yes
	Hopper	No	No	Yes	Yes	Yes	Yes	No	No	Yes	No	No	Yes	Yes	No	No	Yes	Yes
	Iron Bars	No	No	Yes	No	No	Yes	No	Yes	Yes	No	Yes	No	No	No	No	Yes	Yes
	Ladder	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	Yes	No
	Lectern	No	No	No	No	No	Yes	No	No	Yes	No	No	No	No	No	No	No	Yes
	Snow Layer (2–8)	No	No	No	No	No	No	Yes	No	No	No	No	No	No	No	No	No	No
	Grass Path	No	No	No	No	No	Yes^{[n 1]}	No	No	Yes^{[n 1]}	No	No	No	No	No	No	No	Yes^{[n 1]}
	Portal Frame (no eye)	No	No	No	No	No	Yes	No	No	Yes	No	No	No	No	No	No	No	Yes
	Portal Frame (eye)	No	No	Yes	No	No	Yes	No	Yes	Yes	No	Yes	No	No	No	No	Yes	Yes
	Barrier	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
	Scaffolding	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
	Grindstone	No	No	Yes	No	No	Yes	No	Yes	Yes	No	Yes	No	No	No	No	Yes	Yes
	Bell	No	No	Yes	No	No	Yes	No	Yes	Yes	No	Yes	No	No	No	No	Yes	Yes
	Composter	No	No	Yes	Yes	No	Yes	No	No	Yes	No	No	Yes	Yes	No	No	Yes	Yes
	Soul Sand	No	No	No	No	No	Yes	No	No	Yes	No	No	No	No	No	No	No	Yes
	Cobweb	No	No	No	No	No	Yes	No	No	Yes	No	No	No	No	No	No	No	Yes
	Chorus Flower	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
	Honey Block	No	No	No	No	No	Yes	Yes	No	Yes	No	No	No	No	No	No	No	Yes

Everything can be placed on:

Trapdoors (top, closed)
Observer

↑ ^a ^b ^c ^d ^e ^f Block will be converted to dirt

Placement on the side of blocks

Block		Block Being Placed
Block		Ladder	Buttons	Lever	Signs	Torch	Vines	Bell	Banners	Tripwire Hook
Block Being Placed On
	Leaves	No	No	No	Yes	No	Yes	No	Yes	No
	Anvil	No	No	No	Yes	No	No	No	Yes	No
	Bamboo	No	No	No	Yes	No	No	No	Yes	No
	Brewing Stand	No	No	No	Yes	No	No	No	Yes	No
	Cactus	No	No	No	Yes^{[n 1]}	No	No	No	Yes^{[n 1]}	No
	Cauldron	No	No	No	Yes	No	No	No	Yes	No
	Walls	No	No	No	Yes	No	No	No	Yes	No
	Dragon Egg	No	No	No	Yes	No	No	No	Yes	No
	Farmland	No	No	No	Yes	No	No	No	Yes	No
	Fences	No	No	No	Yes	No	No	No	Yes	No
	Fence Gates	No	No	No	Yes	No	No	No	Yes	No
	Glass Panes	No	No	No	Yes	No	No	No	Yes	No
	Hopper	No	No	No	Yes	No	No	No	Yes	No
	Iron Bars	No	No	No	Yes	No	No	No	Yes	No
	Lectern	No	No	No	Yes	No	No	No	Yes	No
	Grass Path	No	No	No	Yes	No	No	No	Yes	No
	End Portal Frame	No	No	No	Yes	No	No	No	Yes	No
	Grindstone	No	No	No	Yes	No	No	No	Yes	No
	Bell	No	No	No	Yes	No	No	No	Yes	No
	Observer	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
	Soul Sand	No	No	No	Yes	No	No	No	Yes	No
	Cobweb	No	No	No	Yes	No	No	No	Yes	No
	Chorus Flower	Yes^{[n 2]}	Yes^{[n 2]}	Yes^{[n 2]}	No	Yes^{[n 2]}	Yes^{[n 2]}	Yes^{[n 2]}	No	Yes^{[n 2]}
	Honey Block	No	No	No	Yes	No	No	No	Yes	No

Everything can be placed on:

Everything cannot be placed on:

↑ ^a ^b The block being placed on will be destroyed
↑ ^a ^b ^c ^d ^e ^f ^g The chorus flower may break, depending on its placement.

Placement on bottom of blocks

Block		Block being placed
Block		Lantern	Bell	Buttons	Lever	Vines
Block being placed on
	Leaves	No	No	No	No	Yes
	Brewing Stand	Yes	No	No	No	No
	Walls	Yes	No	No	No	No
	End Rod	Yes	No	No	No	No
	Farmland	Yes	Yes	Yes	Yes	No
	Fences	Yes	No	No	No	No
	Fence Gates	Yes	No	No	No	No
	Glass Panes	Yes	No	No	No	No
	Hopper	Yes	No	No	No	No
	Iron Bars	Yes	No	No	No	No
	Lectern	Yes	Yes	Yes	Yes	No
	Grass Path	Yes	Yes	Yes	Yes	No
	End Portal Frame	Yes	Yes	Yes	Yes	No
	Composter	Yes	Yes	Yes	Yes	No
	Soul Sand	Yes	Yes	Yes	Yes	No
	Honey Block	Yes	No	No	No	No

Everything can be placed on:

Ice
Barrier
Observer
Chorus Flower (the chorus flower will break)

Everything cannot be placed on:

Doors and trapdoors

Doors and trapdoors behave in unique ways. The flat side of each block acts as an opaque surface, allowing anything to be placed on it. However, all other sides act as transparent blocks. Because of this, many blocks that can be placed on doors and trapdoors will not stay if the door or trapdoor is opened or closed.

Signs and banners can be placed anywhere on a door or a trapdoor and will never be destroyed unless the door or trapdoor itself is destroyed. Cakes and sea pickles can be placed on the tops of doors and trapdoors and will not be destroyed when the door or trapdoor opens and closes. Rails, redstone dust, redstone repeaters, and redstone comparators can only be placed on a closed trapdoor in the top half of a block, but will not be destroyed if the trapdoor is opened until the block is updated. All other blocks will be destroyed when the door or trapdoor changes states.

Shulker boxes

Shulker boxes typically act as a solid block in that they allow everything to be placed on them. However, many of these blocks will be destroyed when the shulker box is opened. This behavior is also dependent on the rotation of the shulker box.

Upwards-facing shulker boxes

Upwards facing shulker boxes do not destroy most transparent blocks placed on their tops or bottoms when opened. However, some blocks stop the opening of the box.

While most blocks placed on top of upwards facing shulker boxes, the same is not true for blocks placed on the sides. Signs are not destroyed, but the following blocks are.

Sideways-facing shulker boxes

The following blocks stop a sideways shulker box from opening when placed on their front

Ladder
Bell

Sideways facing shulker boxes destroy the following blocks when opened.

Buttons (top, side, and bottom only)
Lever (top, side, and bottom only)
Snow Layer
Torch (side only)
Doors
Ladder (side only)
Vines (side and bottom only)
Bell (top, side, and bottom only)
Scaffolding
Tripwire Hook (side only)

Downwards-facing shulker boxes

The following blocks stop downwards facing shulker boxes from opening.

Bell (bottom only)
Lantern (bottom only)

Downwards facing shulker boxes do not destroy any blocks placed on their tops or bottoms when opened. However, they do destroy some when placed on the sides.

Pistons

All transparent blocks can be placed on unextended pistons. However on Java, many blocks cannot be placed on extended pistons and/or are destroyed when pistons extend or retract.

Upwards-facing pistons

All blocks (except for vines) can be placed on the top or bottom of an extended upwards facing pistons. Only signs and banners can be placed on the sides of extended upwards facing pistons. However, they destroy most blocks when extending or retracting.

Blocks destroyed on extention^{[n 1]}	Blocks destroyed on retraction	Blocks that stop extention^{[n 2]}	Blocks not destroyed
Buttons (top, side) Lever (top, side) Pressure Plates Redstone Snow Layer Torch Doors Lantern (top) Repeater Comparator Vines Bell (top, side) Scaffolding Sea Pickle Tripwire Hook Cake	Rails (normal pistons only) Bell (bottom) Lantern (bottom) Buttons (bottom) Lever (bottom)	Signs (top) Banners (top)	Signs (side) Banners (side) Rails (sticky pistons only)

Sideways-facing pistons

The following blocks can be placed on extended sideways pistons.

Pressure Plates
Signs
Torch (top, head, and back of piston only)
Cake
Lantern
Ladder (head and back of piston only)
Buttons (head and back of piston only)
Lever (head and back of piston only)
Vines (head and back of piston only)
Bell (head and back of piston only)
Sea Pickle
Banners
Tripwire Hook (head and back of piston only)

Blocks destroyed on extention^{[n 1]}	Blocks destroyed on retraction	Blocks that stop extention^{[n 2]}	Blocks not destroyed
Buttons (top, side, head, bottom) Lever (top, side, head, bottom) Rails Redstone Snow Layer Doors Repeater Comparator Ladder (side, head) Torch (side, head) Vines (side, head, bottom) Bell (top, side, head, bottom) Scaffolding Tripwire Hook (side, head)	Pressure Plates Torch (top, back) Lantern Ladder (back) Buttons (back) Lever (back) Vines (back) Bell (back) Sea Pickle Tripwire Hook (back)	Signs (head) Banners (head)	Signs (top, side, back) Banners (top, side, back) Cake

Downwards-facing pistons

All blocks (except vines) can be placed on the top and bottom of extended downward facing pistons. The only blocks that can be placed on the sides of extended downward facing pistons are signs.

Blocks destroyed on extention^{[n 1]}	Blocks destroyed on retraction	Blocks not destroyed
Ladder Buttons (side, bottom) Lever (side, bottom) Torch (side) Vines Bell (side, bottom) Lantern (bottom) Tripwire Hook	Buttons (top) Lever (top) Pressure Plates Rails Redstone Snow Layer Torch (top) Doors Lantern (top) Repeater Comparator Bell (top) Sea Pickle	Signs Banners Cake Scaffolding

↑ ^a ^b ^c If the block can be placed on an extended piston, it will also be broken on retraction.
↑ ^a ^b If the block is placed on the extended piston, it will be destroyed on retraction.

[Dirt-1] ↑ ^a ^b ^c ^d ^e ^f Block will be converted to dirt

[Cactus-2] The block being placed on will be destroyed

[Chorus_Flower-3] ↑ ^a ^b ^c ^d ^e ^f ^g The chorus flower may break, depending on its placement.

[Extending-4] If the block can be placed on an extended piston, it will also be broken on retraction.

[Stops-5] If the block is placed on the extended piston, it will be destroyed on retraction.

[n 1]

[n 1]

[n 2]

[n 1]

[n 2]

@@ Line 1,139: / Line 1,139: @@
 ==Pistons==
-All transparent blocks can be placed on unextended pistons. However, many blocks cannot be placed on extended pistons and/or are destroyed when pistons extend or retract.
+All transparent blocks can be placed on unextended pistons. However on Java, many blocks cannot be placed on extended pistons and/or are destroyed when pistons extend or retract.
 ===Upwards-facing pistons===