evade

server/WORKLOG.md

@@ -11,8 +11,6 @@ strangle
 
 * tutorial
 
-* demo registration
-
 * handle unserializable cryps
 
 * Global rolls

server/src/skill.rs

@@ -159,6 +159,11 @@ impl Effect {
                 Category::Physical => false,
                 _ => false,
             },
+            Effect::Evasion => match skill.category() {
+                Category::Spell => false,
+                Category::Physical => evade_roll(),
+                _ => false,
+            },
             Effect::Banish => true,
             _ => false,
         }
@@ -627,7 +632,7 @@ impl Skill {
             // Nature
             // -----------------
             Skill::Block => block(cryp, target, resolution),
-            Skill::Evade => panic!("nyi"), //
+            Skill::Evade => evade(cryp, target, resolution),
             Skill::Parry => panic!("nyi"), // avoid all dmg
             Skill::Snare => snare(cryp, target, resolution), // TODO prevent physical moves
 
@@ -825,6 +830,31 @@ fn block(_cryp: &mut Cryp, target: &mut Cryp, mut resolution: Resolution) -> Res
     return resolution;
 }
 
+fn evade(_cryp: &mut Cryp, target: &mut Cryp, mut resolution: Resolution) -> Resolution {
+    let evade = CrypEffect { effect: Effect::Evasion, duration: Skill::Evade.duration(), tick: None };
+    let immunity = target.immune(Skill::Evade);
+    let immune = immunity.immune;
+
+    let result = ResolutionResult::Effect {
+        effect: evade.effect,
+        duration: evade.duration,
+        immunity,
+    };
+
+    resolution.results.push(result);
+
+    if !immune {
+        target.effects.push(evade);
+    }
+
+    return resolution;
+}
+
+fn evade_roll() -> bool {
+    let mut rng = thread_rng();
+    return rng.gen_bool(0.5);
+}
+
 fn snare(_cryp: &mut Cryp, target: &mut Cryp, mut resolution: Resolution) -> Resolution {
     let snare = CrypEffect { effect: Effect::Snare, duration: Skill::Snare.duration(), tick: None };
     let immunity = target.immune(Skill::Snare);