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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,146 @@ | ||
| import 'package:edgehead/fractal_stories/action.dart'; | ||
| import 'package:edgehead/fractal_stories/actor.dart'; | ||
| import 'package:edgehead/fractal_stories/anatomy/body_part.dart'; | ||
| import 'package:edgehead/fractal_stories/pose.dart'; | ||
| import 'package:edgehead/fractal_stories/simulation.dart'; | ||
| import 'package:edgehead/fractal_stories/situation.dart'; | ||
| import 'package:edgehead/fractal_stories/storyline/storyline.dart'; | ||
| import 'package:edgehead/fractal_stories/world_state.dart'; | ||
| import 'package:edgehead/src/fight/actions/start_slash_at_body_part.dart'; | ||
| import 'package:edgehead/src/fight/common/defense_situation.dart'; | ||
| import 'package:edgehead/src/fight/common/start_defensible_action.dart'; | ||
| import 'package:edgehead/src/fight/common/weapon_as_object2.dart'; | ||
| import 'package:edgehead/src/fight/slash/slash_defense/slash_defense_situation.dart'; | ||
| import 'package:edgehead/src/fight/slash/slash_situation.dart'; | ||
| import 'package:edgehead/src/predetermined_result.dart'; | ||
|
|
||
| class StartSlashAtArm extends StartDefensibleActionBase { | ||
| static final StartSlashAtArm singleton = StartSlashAtArm(); | ||
|
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| static const String className = "StartSlashAtArm"; | ||
|
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| @override | ||
| List<String> get commandPathTemplate { | ||
| throw StateError('$className has its own getCommandPath'); | ||
| } | ||
|
|
||
| @override | ||
| String get commandTemplate => "slash >> <object's> >> arm"; | ||
|
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| @override | ||
| String get helpMessage => "Arms tend to be important in fight, and they " | ||
| "are often exposed. A disabled arm cannot hold a sword that would later " | ||
| "slash your neck."; | ||
|
|
||
| @override | ||
| String get name => className; | ||
|
|
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| @override | ||
| bool get rerollable => true; | ||
|
|
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| @override | ||
| Resource get rerollResource => Resource.stamina; | ||
|
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| @override | ||
| String get rollReasonTemplate => "will <subject> slash the arm?"; | ||
|
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| @override | ||
| bool get shouldShortCircuitWhenFailed => false; | ||
|
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| @override | ||
| void applyShortCircuit(Actor actor, Simulation sim, WorldStateBuilder world, | ||
| Storyline storyline, Actor enemy, Situation mainSituation) { | ||
| throw StateError("This action doesn't short-circuit on failure."); | ||
| } | ||
|
|
||
| @override | ||
| void applyStart(Actor a, Simulation sim, WorldStateBuilder world, Storyline s, | ||
| Actor enemy, Situation mainSituation) { | ||
| a.report( | ||
| s, | ||
| "<subject> swing<s> {${weaponAsObject2(a)} |}at " | ||
| "<objectOwner's> <object>", | ||
| object: Entity(name: 'arm'), | ||
| objectOwner: enemy, | ||
| actionThread: mainSituation.id, | ||
| isSupportiveActionInThread: true); | ||
| } | ||
|
|
||
| @override | ||
| DefenseSituation defenseSituationBuilder(Actor a, Simulation sim, | ||
| WorldStateBuilder w, Actor enemy, Predetermination predetermination) { | ||
| return createSlashDefenseSituation( | ||
| w.randomInt(), a, enemy, predetermination); | ||
| } | ||
|
|
||
| @override | ||
| List<String> getCommandPath(Actor target) { | ||
| final livingArms = _getAllArms(target).length; | ||
| assert(livingArms > 0, | ||
| "Trying to apply $className when there is no leg left."); | ||
| final isLast = livingArms == 1; | ||
|
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||
| final commandPathTemplate = [ | ||
| "attack <object>", | ||
| "maim", | ||
| "slash at <objectPronoun's> ${isLast ? 'remaining ' : ''}arm", | ||
| ]; | ||
|
|
||
| // Realize the "<object>" parts of the template. | ||
| return (Storyline()..add(commandPathTemplate.join('>>'), object: target)) | ||
| .realizeAsString() | ||
| // Then split again into a list. | ||
| .split('>>'); | ||
| } | ||
|
|
||
| @override | ||
| bool isApplicable(Actor a, Simulation sim, WorldState w, Actor enemy) => | ||
| !a.isOnGround && | ||
| // This is here because we currently don't have a way to dodge | ||
| // a thrust while on ground. TODO: fix and remove | ||
| !enemy.isOnGround && | ||
| !a.anatomy.isBlind && | ||
| a.currentWeapon.damageCapability.isSlashing && | ||
| // Only allow arm attacks when enemy is at least extended. | ||
| enemy.pose <= Pose.extended && | ||
| enemy.anatomy.anyWeaponAppendageAvailable; | ||
|
|
||
| @override | ||
| Situation mainSituationBuilder( | ||
| Actor a, Simulation sim, WorldStateBuilder w, Actor enemy) { | ||
| final arm = _getTargetArm(enemy); | ||
|
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| return createSlashSituation(w.randomInt(), a, enemy, | ||
| designation: arm.designation); | ||
| } | ||
|
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||
| @override | ||
| ReasonedSuccessChance successChanceGetter( | ||
| Actor a, Simulation sim, WorldState w, Actor enemy) { | ||
| final leg = _getTargetArm(enemy); | ||
| return computeStartSlashAtBodyPartGenerator(leg, a, sim, w, enemy); | ||
| } | ||
|
|
||
| static Iterable<BodyPart> _getAllArms(Actor target) { | ||
| assert( | ||
| target.anatomy.isHumanoid, | ||
| "This function currently assumes that legs are the only " | ||
| "body parts providing mobility."); | ||
|
|
||
| return target.anatomy.allParts | ||
| .where((part) => part.function == BodyPartFunction.wielding); | ||
| } | ||
|
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| static BodyPart _getTargetArm(Actor enemy) { | ||
| assert(enemy.anatomy.isHumanoid, "Assuming just two arms."); | ||
| if (enemy.anatomy.primaryWeaponAppendageAvailable) { | ||
| // The "appendage" is a hand. We are targeting the arm. | ||
| return enemy.anatomy.findByDesignation(BodyPartDesignation.primaryArm); | ||
| } | ||
| if (enemy.anatomy.secondaryWeaponAppendageAvailable) { | ||
| // The "appendage" is a hand. We are targeting the arm. | ||
| return enemy.anatomy.findByDesignation(BodyPartDesignation.secondaryArm); | ||
| } | ||
| throw StateError('_getTargetArm was called when no arm is available'); | ||
| } | ||
| } |
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