move apply damage onto cryp struct

src/combat.rs

@@ -1,13 +1,13 @@
 use rand::prelude::*;
 use cryp::Cryp;
 
-struct Turn {
-  dmg: Roll,
-  def: Roll,
+pub struct Turn {
+  pub dmg: Roll,
+  pub def: Roll,
 }
 
 #[derive(Debug)]
-enum Attribute {
+pub enum Attribute {
   Dmg,
   Def,
 }
@@ -21,22 +21,23 @@ enum Attribute {
 //   }
 // }
 
-struct Roll {
-  value: u64,
-  roll: u64,
-  result: u64,
-  att: Attribute
+pub struct Roll {
+  pub value: u64,
+  pub roll: u64,
+  pub result: u64,
+  pub att: Attribute
 }
 
 struct Encounter {
   mob: Cryp,
   success: bool,
+  player: Cryp,
 }
 
 fn att_roll(value: u64, att: Attribute) -> Roll {
   let mut rng = thread_rng();
   let roll: u64 = rng.gen();
-  return Roll { att, value, roll, result: value ^ roll };
+  return Roll { att, value, roll, result: value & roll };
 }
 
 fn print_roll(r: &Roll) {
@@ -58,58 +59,26 @@ fn cryp_turn(c: &Cryp) -> Turn {
   return Turn { dmg, def }
 }
 
-fn assign_dmg(plr: &Cryp, opp: &Cryp, plr_t: &Turn, opp_t: &Turn) -> Cryp {
-  let final_dmg = opp_t.dmg.result.saturating_sub(plr_t.def.result);
-  let blocked = opp_t.dmg.result.saturating_sub(final_dmg);
-  let new_stam = plr.stam.saturating_sub(final_dmg);
-
-  println!("{:?} deals {:?} dmg to {:?} ({:?} blocked / {:?} hp remaining)"
-    ,opp.name
-    ,final_dmg
-    ,plr.name
-    ,blocked
-    ,new_stam);
-
-  return Cryp {
-    dmg: plr.dmg,
-    def: plr.def,
-    stam: new_stam,
-    xp: plr.xp,
-    lvl: plr.lvl,
-    id: plr.id,
-    name: plr.name.clone()
-  };
-}
-
-fn combat_phase(a: &Cryp, b: &Cryp) -> Vec<Cryp> {
-  let a_turn = cryp_turn(&a);
-  let b_turn = cryp_turn(&b);
-  return vec![
-  assign_dmg(&a, &b, &a_turn, &b_turn),
-  assign_dmg(&b, &a, &b_turn, &a_turn),
-  ];
-}
-
-pub fn battle(a: &Cryp, b: &Cryp) -> Vec<Cryp> {
-  let mut cryps = vec![
-    a.clone(),
-    b.clone()
-  ];
-
+pub fn battle(mut a: Cryp, mut b: Cryp) -> (Cryp, Cryp) {
   // println!("battle:",);
   // println!("{:?}", cryps[0]);
   // println!("{:?}", cryps[1]);
+
   loop {
-    let combat = combat_phase(&cryps[0], &cryps[1]);
+    let a_turn = cryp_turn(&a);
+    let b_turn = cryp_turn(&b);
+
+    a = a.assign_dmg(&b, &a_turn, &b_turn);
+    b = b.assign_dmg(&a, &b_turn, &a_turn);
     // println!("{:?}", combat);
-    if combat.iter().any(|c| c.stam == 0) {
-      return combat;
+
+    if vec![&a, &b].iter().any(|c| c.hp == 0) {
+      break (a, b);
     }
-    cryps = combat;
   }
 }
 
-fn pve(plr: &Cryp) -> Encounter {
+fn pve(plr: Cryp) -> Encounter {
   let mut rng = thread_rng();
   let mob_lvl: u8 = rng.gen_range(1, plr.lvl);
 
@@ -118,25 +87,29 @@ fn pve(plr: &Cryp) -> Encounter {
     .level(mob_lvl)
     .create();
 
-  let battle = battle(plr, &mob);
-  let win = battle.iter().any(|c| c.id == plr.id && c.stam > 0);
+  // have to reassign here because battle takes ownership
+  let (plr, mob) = battle(plr, mob);
+  let win = vec![&plr, &mob].iter().any(|c| c.id == plr.id && c.hp > 0);
 
   if win {
     return Encounter {
       mob: mob,
       success: true,
+      player: plr,
     };
   }
 
   return Encounter {
     mob: mob,
     success: false,
+    player: plr,
   };
 }
 
 pub fn levelling(mut c: Cryp) -> Cryp {
   loop {
-    let enc = pve(&c);
+    let enc = pve(c);
+    c = enc.player;
 
     if !enc.success {
       println!("{:?} has been KO'd", c.name);

src/cryp.rs

@@ -1,6 +1,8 @@
 use uuid::Uuid;
 use rand::prelude::*;
 
+use combat::{Turn};
+
 #[derive(Debug,Clone)]
 pub struct Cryp {
   pub id: Uuid,
@@ -9,6 +11,7 @@ pub struct Cryp {
   pub dmg: u64,
   pub def: u64,
   pub stam: u64,
+  pub hp: u64,
   pub xp: u64,
   pub lvl: u8,
   pub name: String,
@@ -27,6 +30,7 @@ impl Cryp {
       dmg: 0,
       def: 0,
       stam: 0,
+      hp: 0,
       lvl: 0,
       xp: 0,
       name: String::new()
@@ -69,8 +73,26 @@ impl Cryp {
     self.dmg = rng.gen_range(1, max);
     self.def = rng.gen_range(1, max);
     self.stam = rng.gen_range(1, max);
+    self.hp = self.stam;
     self
   }
+
+  pub fn assign_dmg(mut self, opp: &Cryp, plr_t: &Turn, opp_t: &Turn) -> Cryp {
+    let final_dmg = opp_t.dmg.result.saturating_sub(plr_t.def.result);
+    let blocked = opp_t.dmg.result.saturating_sub(final_dmg);
+    let hp = self.hp.saturating_sub(final_dmg);
+
+    println!("{:?} deals {:?} dmg to {:?} ({:?} blocked / {:?} hp remaining)"
+      ,opp.name
+      ,final_dmg
+      ,self.name
+      ,blocked
+      ,hp);
+
+    self.hp = hp;
+    self
+  }
+
 }
 
 

src/lib.rs

@@ -8,30 +8,30 @@ use combat::{battle, levelling};
 use cryp::Cryp;
 
 pub fn main() {
-  let a = Cryp::new()
-    .named("pronounced \"creeep\"".to_string())
-    .level(8)
-    .create();
+  // let a = Cryp::new()
+  //   .named("pronounced \"creeep\"".to_string())
+  //   .level(8)
+  //   .create();
 
-  let b = Cryp::new()
-    .named("lemongrass tea".to_string())
-    .level(8)
-    .create();
+  // let b = Cryp::new()
+  //   .named("lemongrass tea".to_string())
+  //   .level(8)
+  //   .create();
 
-  let battle = battle(&a, &b);
+  // let battle = battle(a, b);
+  // let b_vec = vec!(battle.0, battle.1);
+  // let draw = b_vec.iter().all(|c| c.hp == 0);
+  // if draw {
+  //   println!("{:?} was a draw", battle);
+  //   return;
+  // }
 
-  let draw = battle.iter().all(|c| c.stam == 0);
-  if draw {
-    println!("{:?} was a draw", battle);
-    return;
-  }
+  // let winner = match b_vec.iter().find(|c| c.hp > 0) {
+  //   Some(w) => w,
+  //   None => panic!("no winner found {:?}", battle),
+  // };
 
-  let winner = match battle.iter().find(|c| c.stam > 0) {
-    Some(w) => w,
-    None => panic!("no winner found {:?}", battle),
-  };
-
-  println!("{:?} is the winner with {:?} hp remaining", winner.name, winner.stam);
+  // println!("{:?} is the winner with {:?} hp remaining", winner.name, winner.hp);
 
   return;
 }