Finish Wrestling

[DigitalLibrarian]

Since the content project has become functional, we can make our hard-coded wrestling moves hook into the body part move system in our content model.

[DigitalLibrarian]

Wrestling maneuvers include:

• Grabbing is the basic wrestling move—a grabbed body part cannot be used to attack you, and the opponent will be unable to dodge to a different square or move until it breaks all your grabs (though you will also be unable to move without releasing it). Grabbing is required to use the more advanced maneuvers.
• Take-down maneuvers that render an opponent prone
• Throws (as in throwing a creature, not an object) which render an opponent prone and stunned
• Choke Holds and Strangling which can render an opponent unconscious and eventually kill
• Joint Locks and Breaking Bones which can break limbs
• Shaking around by the teeth, after latching on from biting, which can do extra damage or sever body parts
• Gouging (eyes, for example) and Pinching, yes, PINCHING, which can damage, destroy, or even sever body parts
• Disarming maneuvers which can remove weapons, shields, clothing, or armor from an opponent.

When wrestling, the advantage always goes to the creature with greater mass. A stronger wrestler's moves will fail against larger opponents, and they will be unable to break holds. Blood loss will cause a proportionate reduction in a creature's mass, so a sufficiently injured Minotaur can become vulnerable to a dwarven wrestler. Wrestling skill also improves defense against wrestling moves, so even a relatively light creature can benefit from developing it.

[DigitalLibrarian]

This wiki page contains several actual test cases:

http://dwarffortresswiki.org/index.php/DF2014:Wrestling

[DigitalLibrarian]

This includes filling out the materials system to include the unimplemented stress modes:

    Compressive,
    Tensile,
    Torsion,
    Bending

This means more combat sniffer logs of wrestlers, test cases, and research. Cursory ideas include categorizing this list into impact vs shear modes, then use the blunt code to handle impact modes, and the edged code to handle shear modes. This method would require some modification to the MaterialStrikeResultBuilder so that it uses the relevant stress properties, paired with the stress mode class(edged or blunt) code.

[DigitalLibrarian]

Here is a guess as to how the wrestling moves map to stress modes :

Non-strikes, and therefore not stress related moves :

• Grabbing
• Take-down
• Throws
• Disarming
• Joint Locks

"Normal" Blunt/Edge stress:

• Biting

Compressive stress:

• Choke Holds
• Strangling
• Pinching

Bending stress:

• Breaking Bones

Torsion stress:

• Shaking

Shear/Edge:

• Gouging

Throws can result in the throwee "skidding" along the ground and potentially "splitting in gore". The same "splitting in gore" language is used for a maximally successful gouging attempt. This probably means that both of those events use the same shear-class stress mode.

Joint locks are special kind of grab, that enable the "Break (Bones)" move. Requires [JOINT] on target part.

Bending sometimes results in " collapses" language.

Biting is a special kind of grab that enables the "Shake" move.

[DigitalLibrarian]

This from DF wiki :

"biting can deal [TENSILE] or [TORSION] damage depending on whether the attack is edged."

Biting moves are defined in the raws. Here is an example:

[ATTACK:BITE:BODYPART:BY_CATEGORY:BEAK]
    [ATTACK_SKILL:BITE]
    [ATTACK_VERB:bite:bites]
    [ATTACK_CONTACT_PERC:100]
    [ATTACK_PENETRATION_PERC:100]
    [ATTACK_FLAG_EDGE]
    [ATTACK_PREPARE_AND_RECOVER:3:3]
    [ATTACK_PRIORITY:MAIN]
    [ATTACK_FLAG_CANLATCH]

Needless to say, the choice between torsion and tensile doesn't make much sense. Since we already have many biting tests cases that assume biting is treated like normal shear/edged damage, it is likely that the [ATTACK_FLAG_EDGE] really switches between the normal blunt and shear/edge damage types. Or it means simply that the different Yield, Fracture, and StrainAtYield values are equivalent, across stress modes, for tissue cases, which seems to be the case (at least for muscle). Need some way to distinguish between these mutually exclusive theories.

One possibility that squares all of these problems is that the TORSION vs TENSILE debacle only applies to the "shake" move that occurs after a bite has latched on. Under such a regime, the bite move itself could still be treated as a edged or blunt strike. This rehabilitates all those passing initial bite incision tests that we have.