BlockProperties are what makes a block distinctive from other blocks. It mainly serves as superinterface to IBlockState, that means all these functions are also available to all IBlockState objects.

It might be required for you to import the package if you encounter any issues, so better be safe than sorry and add the import.
import crafttweaker.block.IBlockProperties;

ZenGetter	Return Type	Description
ZenGetter canProvidePower	Return Type bool	Description Returns if the refered block can provide Redstone Power
ZenGetter mobilityFlag	Return Type string	Description Returns the mobility flag as string
ZenGetter material	Return Type IMaterial	Description Returns the block's material
ZenGetter causesSuffocation	Return Type bool	Description Returns whether the block can choke you.
ZenGetter hasCustomBreakingProgress	Return Type bool	Description ​
ZenGetter blockNormalCube	Return Type bool	Description ​
ZenGetter fullBlock	Return Type bool	Description ​
ZenGetter fullCube	Return Type bool	Description ​
ZenGetter normalCube	Return Type bool	Description ​
ZenGetter opaqueCube	Return Type bool	Description ​
ZenGetter translucent	Return Type bool	Description ​
ZenGetter useNeighborBrightness	Return Type bool	Description ​

boolean isReplaceable(IWorld world, IBlockPos pos);
Parameters:

• IWorld world → The world to be checked in
• IBlockPos pos → The Block's position

Returns a boolean that sais whether the block can be replaced or not.

int getLightValue(IWorld world, IBlockPos blockPos);
Parameters:

• IBlockAccess world → The world to be checked in
• IBlockPos pos → The Block's position

Returns an int representing the current light value at the given location.

int getWeakPower(IBlockAccess world, IBlockPos blockPos, Facing facing);
int getStrongPower(IBlockAccess world, IBlockPos blockPos, Facing facing);
Parameters:

• IBlockAccess world → The world to be checked in
• IBlockPos pos → The Block's position
• Facing facing → The side to be checked Returns an int representing the current redstone power on this side.

int getComparatorInputOverride(IWorld world, IBlockPos blockPos);

Parameters:

• IWorld world → The world to be checked in
• IBlockPos pos → The Block's position

Returns an int representing the block's redstone comparator input override type.

Use an IEntity.
Returns a bool.

ZenScript
 Copy
blockProperties.canEntitySpawn(IEntity entity);

Use an IBlockAccess and an IBlockPos.
Returns a new IBlockProperties object.

ZenScript
 Copy
blockProperties.getActualState(IBlockAccess world, IBlockPos pos);

Use IWorld and an IBlockPos.
Returns a float.

ZenScript
 Copy
blockProperties.getBlockHardness(IWorld world, IBlockPos pos);

Use IWorld and an IBlockPos.
Returns an int.

ZenScript
 Copy
blockProperties.getLightOpacy(IWorld world, IBlockPos pos);

Use an IPlayer, an IWorld and an IBlockPos.
Returns a float.

ZenScript
 Copy
blockProperties.getPlayerRelativeBlockHardness(IPlayer player, IWorld world, IBlockPos pos);

Use an IBlockAccess, an IBlockPos and an IFacing object.
Returns a bool.

ZenScript
 Copy
blockProperties.isSideSolid(IBlockAccess world, IBlockPos pos, IFacing facing);