SHIELD defines that the block will protect with a shield.
Shields protect against a set amount of damage, then have to regenerate using energy.
Shields are defined within a block as an additional set of attributes.
Example shield code:shield=
{strength=1000.000,
regen=200.000,
radius=100.000,
color=0x191f2928,
lineColor=0xc1f2928,
damagedColor=0x4c536c68},
Shields can be defined by many attributes: