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[joeclark77]

Quick question: is it possible to mod obsidian swords to make them comparable to steel?  I promise I'm not doing this because I don't have steel... I just really like the obsidian and wish they weren't useless.

[Deon]

Change obsidian material properties to be comparable to steel.

[i2amroy]

I believe you can get similar results by increasing the shear yield and shear fracture values of obsidian up to those of steel.

Edit: Ninja!

[joeclark77]

I believe you can get similar results by increasing the shear yield and shear fracture values of obsidian up to those of steel.

Edit: Ninja!

This is what I see in the raw file inorganic_stone_layer.txt:

Code: [Select]

[INORGANIC:OBSIDIAN]
[USE_MATERIAL_TEMPLATE:STONE_TEMPLATE]
[MELTING_POINT:13600]
[BOILING_POINT:16000]
[STATE_NAME_ADJ:ALL_SOLID:obsidian][DISPLAY_COLOR:0:7:1][TILE:177][LAVA]
[MAX_EDGE:20000]
[IGNEOUS_EXTRUSIVE]
[MATERIAL_VALUE:3]
[IS_STONE]
MELTING_POINT:11818 <-- I think this is from the data collected by the contributors above and is more accurate than the numbers we're using, but we're using a high melting point until environmental lava effects are further along.
[SOLID_DENSITY:2650]No shear yield and shear fracture.  Would changing DENSITY and MAX_EDGE do the trick?

[scamtank]

See that USE_MATERIAL_TEMPLATE thingo? That tag means that anything not explicitly overridden (like material value or density in this case) is checked from STONE_TEMPLATE in material_template_default.txt.

Just copy the shear/impact tags from steel and put them in there. They'll take hold.

[Deon]

There're no shear and other values, but you can add them. Just copy everything but name from steel.

Code: [Select]

[INORGANIC:OBSIDIAN]
[USE_MATERIAL_TEMPLATE:STONE_TEMPLATE]
[MELTING_POINT:13600]
[BOILING_POINT:16000]
[STATE_NAME_ADJ:ALL_SOLID:obsidian][DISPLAY_COLOR:0:7:1][TILE:177][LAVA]
[IGNEOUS_EXTRUSIVE]
[MATERIAL_VALUE:3]
[IS_STONE]
[SOLID_DENSITY:2650]
[IMPACT_YIELD:1505000]
[IMPACT_FRACTURE:2520000]
[IMPACT_STRAIN_AT_YIELD:940]
[COMPRESSIVE_YIELD:1505000]
[COMPRESSIVE_FRACTURE:2520000]
[COMPRESSIVE_STRAIN_AT_YIELD:940]
[TENSILE_YIELD:430000]
[TENSILE_FRACTURE:720000]
[TENSILE_STRAIN_AT_YIELD:225] 200
[TORSION_YIELD:430000]
[TORSION_FRACTURE:720000]
[TORSION_STRAIN_AT_YIELD:215]
[SHEAR_YIELD:430000]
[SHEAR_FRACTURE:720000]
[SHEAR_STRAIN_AT_YIELD:215] no data, used 200
[BENDING_YIELD:430000]
[BENDING_FRACTURE:720000]
[BENDING_STRAIN_AT_YIELD:215]
[MAX_EDGE:20000]

[joeclark77]

See that USE_MATERIAL_TEMPLATE thingo? That tag means that anything not explicitly overridden (like material value or density in this case) is checked from STONE_TEMPLATE in material_template_default.txt.

Just copy the shear/impact tags from steel and put them in there. They'll take hold.

OK, thanks, that's entirely reasonable.  By the way, obsidian swords are actually made of obsidian and wood.  Do we know if that affects what we need to to do make obsidian swords awesome?

[Putnam]

Nope. The wood never actually comes into play.

[Torrasque666]

wooden handle, presumably.

[Putnam]

Yeah, but the game doesn't know that. It just sees a sword made of obsidian.

[Urist Da Vinci]

I believe you can get similar results by increasing the shear yield and shear fracture values of obsidian up to those of steel.

Edit: Ninja!

Yes. Also, relevant bug: http://www.bay12games.com/dwarves/mantisbt/view.php?id=5346