Object materials (EvilHack)

EvilHack's implementation of object materials uses modified code taken from xNetHack's implementation. As with xNetHack, an object's material affects its weight, its cost in a shop, how much protection it can grant as armor, how damage it delivers as a weapon, and what types of damage and decay it is subject to (if any). Material hatred is retained and expanded on as well. In addition, various material types will further affect spellcasting failure percentage, as well as magic cancellation rating.

In EvilHack, the material type of a desired item can be chosen if the category of object allows for it. Artifacts are the exception, as are a few other items.

List of material qualities

In the below table, iron is the baseline on which every other material is based. Density is an arbitrary value, as is cost - e.g., an item made of iron weighs X amount, while the same item made of cloth would be one-eighth its weight; an item made of iron costs X amount, while the same item made from gemstone will cost 50 times that amount. For armor class, a poor material can never make the wearer's AC worse if it's in an undamaged state.

Material	Density	AC (as armor)	Damage (as weapon)	Relative cost	Erosion type	Notes
Liquid	10	0		1
Wax	15	1		1
Veggy	10	1		1
Flesh	10	3		3
Paper	5	1	−2 damage penalty (all)	2	burn, rot	can be made fireproof via wielding object and reading a scroll of enchant weapon when confused (if object is armor, read a scroll of enchant armor while confused and wearing said object)
Cloth	10	2		3	burn, rot	can be made fireproof via wielding object and reading a scroll of enchant weapon when confused (if object is armor, read a scroll of enchant armor while confused and wearing said object)
Leather	15	3		5	burn, rot	can be made fireproof via wielding object and reading a scroll of enchant weapon when confused (if object is armor, read a scroll of enchant armor while confused and wearing said object)
Wood	30	4	−1 damage penalty (slash)	8	burn, rot	can be made fireproof via wielding object and reading a scroll of enchant weapon when confused (if object is armor, read a scroll of enchant armor while confused and wearing said object)
Bone	25	5		20	burn	can be made fireproof via wielding object and reading a scroll of enchant weapon when confused (if object is armor, read a scroll of enchant armor while confused and wearing said object), grants magic cancellation level 3 (MC3) for orcs when worn as body armor
Dragonhide	20	8		200	deteriorate	inherently fixed, but is subject to decay via the monster spell 'destroy armor'
Iron	80	5		10	corrode, rust	can be made rustproof via wielding object and reading a scroll of enchant weapon when confused (if object is armor, read a scroll of enchant armor while confused and wearing said object), bonus damage against elves, player as an elf cannot heal if iron armor or weapon touches their skin
Metal	75	5	+1 damage bonus	15	deteriorate	referred to as 'steel', inherently fixed, but is subject to decay via the monster spell 'destroy armor'
Copper	85	4		10	corrode	can be made corrodeproof via wielding object and reading a scroll of enchant weapon when confused (if object is armor, read a scroll of enchant armor while confused and wearing said object)
Silver	90	5		30	deteriorate	inherently fixed, but is subject to decay via the monster spell 'destroy armor', bonus damage against demons, werefoo, vampires and shades
Gold	120	3	+1 damage bonus (whack)	60	deteriorate	inherently fixed, but is subject to decay via the monster spell 'destroy armor'
Platinum	120	4	+1 damage bonus (whack)	80	deteriorate	inherently fixed, but is subject to decay via the monster spell 'destroy armor'
Mithril	30	6	+2 damage bonus (slash, pierce)	50	deteriorate	inherently fixed, but is subject to decay via the monster spell 'destroy armor', grants magic cancellation level 3 (MC3) for elves when worn as body armor (MC2 for all other races), bonus damage against orcs, player as an orc cannot heal if mithril armor or weapon touches their skin
Plastic	20	3	−2 damage penalty (all)	10	burn	can be made fireproof via wielding object and reading a scroll of enchant weapon when confused (if object is armor, read a scroll of enchant armor while confused and wearing said object)
Glass	60	5	+3 damage bonus (slash, pierce)	20	fracture	can be made shatterproof via wielding object and reading a scroll of enchant weapon when confused (if object is armor, read a scroll of enchant armor while confused and wearing said object)
Gemstone	55	7	+3 damage bonus (slash, pierce)	500		referred to as 'crystal', immune to erosion
Mineral	70	6	+2 damage bonus (slash, whack)	10	deteriorate	referred to as 'stone', inherently fixed, but is subject to decay via the monster spell 'destroy armor', grants magic cancellation level 3 (MC3) for orcs when worn as body armor

Material percentages

As in GruntHack, all objects have a probability of generating with a given set of materials; this also limits what object materials can be applied to items you wish for (e.g., wishing for dragonhide plate mail won't work, as plate mail base material is iron or metal).

Default base type iron or steel:

• 65% its base material
• 10% steel
• 5% bone
• 5% wood
• 4% each silver or copper
• 3% mithril
• 1% each gold, glass, platinum or stone

Default base type wood:

• 80% wood
• 8% stone
• 4% iron
• 2% each bone, steel or mithril
• 1% each silver or copper

Default base type cloth:

• 80% cloth
• 19% leather
• 1% dragonhide

Default base type leather:

• 86% leather
• 13% cloth
• 1% dragonhide

Armor of dwarvish make (minus cloth items):

• 60% iron
• 20% steel
• 15% mithril
• 3% silver
• 1% each gold or platinum

Weapons of dwarvish make:

• 50% iron
• 25% steel
• 20% mithril
• 5% gemstone

Armor and weapons of elven make (except cloth items):

• 60% its base material
• 20% wood
• 10% copper
• 5% mithril
• 3% silver
• 2% gold

Armor and weapons of orcish make (minus cloth items):

• 65% iron
• 25% bone
• 10% stone

Reflectable objects (shields of reflection and amulets):

• 50% its base material
• 20% silver
• 15% gold
• 5% mithril
• 4% each copper or steel
• 2% platinum

Most bows:

• 70% wood
• 7% iron
• 7% bone
• 6% mithril
• 2% each silver or copper
• 1% gold

Horns:

• 70% bone
• 10% copper
• 8% mithril
• 5% each wood or silver
• 2% gold