premades and many-v-many combat

Cargo.toml

@@ -17,3 +17,9 @@ strum = "0.24"
 strum_macros = "0.24"
 rayon = "1.7.0"
 
+log = "0.4.18"
+env_logger = "0.10.0"
+
+[dev-dependencies]
+
+test-log = "0.2.11"

examples/arena.rs

@@ -44,6 +44,8 @@ where
 }
 
 fn main() {
+    env_logger::init();
+
     let mut rng = thread_rng();
 
     let n = 100;
@@ -52,8 +54,6 @@ fn main() {
 
     let mut characters: Vec<Character> = iter::repeat_with(random_character).take(n).collect();
     print_chars(characters.iter().take(keep).collect::<Vec<&Character>>());
-    // print_chars(&characters1);
-    // print_chars(&characters2);
 
     for g in 0..gen {
         characters.shuffle(&mut rng);
@@ -76,7 +76,7 @@ fn main() {
                 for _i in 0..n_rounds {
                     let mut c1l = c1.to_owned();
                     let mut c2l = c2.to_owned();
-                    let t = make_them_fight(&mut c1l, &mut c2l);
+                    let t = make_them_fight(vec![&mut c1l], vec![&mut c2l]);
 
                     match t {
                         Some(_turns) => {

examples/bob_v_drub.rs

@@ -1,40 +1,43 @@
 use kartsimrust::{
-    character::create_character,
-    class::Class,
-    combat::EncounterType,
-    equipment::{Armor, WeaponType},
-    stats::StatBlock,
+    combat::make_them_fight,
+    premade::{get_bob, get_drub},
 };
 
 fn main() {
-    let mut bob = create_character(
-        String::from("Bob"),
-        Class::Guard,
-        Class::Brawler,
-        StatBlock::from((1, 0, 1, 0, 0, 0, 0, 0)),
-        StatBlock::from((2, 0, 2, 0, -1, -2, 0, -1)),
-        Armor::Medium,
-        WeaponType::BladedWeapon.create_weapon("Longsword".to_owned()),
-    );
+    let mut a = 1.0;
+    let mut b = 1.0;
 
-    let mut drub = create_character(
-        String::from("Drub"),
-        Class::Hunter,
-        Class::Thief,
-        StatBlock::from((0, 1, 1, 0, 0, 0, 0, 0)),
-        StatBlock::from((0, 2, 2, 0, -2, 0, 0, -2)),
-        Armor::Light,
-        WeaponType::RangedWeapon.create_weapon(String::from("Shortbow")),
-    );
+    let mut total_turns = 0.0;
+    let mut battles = 0.0;
 
-    bob.init_dice_pool(EncounterType::Physical);
-    drub.init_dice_pool(EncounterType::Physical);
+    loop {
+        let mut bob = get_bob();
 
-    println!("{}", bob);
-    println!("{}", drub);
+        let mut drub = get_drub();
+        let mut drub2 = get_drub();
 
-    bob.attacks(&mut drub);
+        if let Some(turns) = make_them_fight(vec![&mut bob], vec![&mut drub, &mut drub2]) {
+            battles += 1.0;
+            total_turns += turns as f64;
 
-    println!("{}", bob);
-    println!("{}", drub);
+            if bob.hp <= 0 {
+                b += 1.0;
+                println!("Bob died in {} turns.", turns)
+            } else {
+                a += 1.0;
+                println!("Drub died in {} turns.", turns)
+            }
+
+            if (a * b) / (f64::powi(a + b, 2) * (a + b + 1.0)) <= 0.00001 {
+                break;
+            }
+        } else {
+            println!("No one died.")
+        }
+    }
+    println!(
+        "Bob won {:.2}% of battles in an average of {:.1} turns.",
+        a / (a + b) * 100.0,
+        total_turns / battles
+    )
 }

src/character.rs

@@ -107,6 +107,10 @@ impl Character {
 
         adjusted_stat_block[stat]
     }
+
+    pub fn is_dead(&self) -> bool {
+        self.hp <= 0
+    }
 }
 
 pub fn create_character(
@@ -120,6 +124,7 @@ pub fn create_character(
 ) -> Character {
     if !(Vec::from(stat_choice).iter().all(|s| *s >= 0)
         && Vec::from(stat_choice).iter().sum::<i64>() == 2i64)
+        && !(class1 == Class::NPC && class2 == Class::NPC)
     {
         panic!("Invalid stat choice: {:?}", stat_choice)
     }

src/class.rs

@@ -19,6 +19,7 @@ pub enum Class {
     Hunter,
     Witch,
     Wizard,
+    NPC, // Stubbed in for "no class"
 }
 
 impl ToStatBlock for Class {
@@ -36,6 +37,8 @@ impl ToStatBlock for Class {
             // -----
             Class::Witch => StatBlock::from((0, 0, 0, 0, 1, 1, 1, 0)),
             Class::Wizard => StatBlock::from((0, 0, 0, 0, 1, 1, 0, 1)),
+            // -----
+            Class::NPC => StatBlock::from((0, 0, 0, 0, 0, 0, 0, 0)),
         }
     }
 }
@@ -103,6 +106,7 @@ impl ToProficiencies for Class {
                 ..Default::default()
             },
             Class::Wizard => Proficiencies::default(),
+            Class::NPC => Proficiencies::default(),
         }
     }
 }
@@ -119,33 +123,23 @@ mod class_tests {
 
     use crate::{class::Class, stats::ToStatBlock};
 
-    // const CLASSES: [Class; 9] = [
-    //     Class::Guard,
-    //     Class::Knight,
-    //     Class::Brawler,
-    //     Class::Thief,
-    //     Class::Swashbuckler,
-    //     Class::Survivalist,
-    //     Class::Hunter,
-    //     Class::Witch,
-    //     Class::Wizard,
-    // ];
-
     #[test]
     fn stat_sums() {
         for class in Class::iter() {
             let stat_block = class.stat_block();
-            assert_eq!(
-                3,
-                stat_block.STR
-                    + stat_block.DEX
-                    + stat_block.CON
-                    + stat_block.STB
-                    + stat_block.INT
-                    + stat_block.KND
-                    + stat_block.CMP
-                    + stat_block.CHA
-            )
+            if class != Class::NPC {
+                assert_eq!(
+                    3,
+                    stat_block.STR
+                        + stat_block.DEX
+                        + stat_block.CON
+                        + stat_block.STB
+                        + stat_block.INT
+                        + stat_block.KND
+                        + stat_block.CMP
+                        + stat_block.CHA
+                )
+            }
         }
     }
 

src/combat.rs

@@ -1,6 +1,6 @@
 use crate::{character::Character, dice::successes};
 
-#[derive(Debug,PartialEq, Eq, Clone, Copy)]
+#[derive(Debug, PartialEq, Eq, Clone, Copy)]
 pub enum EncounterType {
     Physical,
     Mental,
@@ -13,41 +13,158 @@ impl Character {
             (opponent.ac() - self.weapon_proficiency() as i64).clamp(1, 12),
         );
 
-        let damage = self.compute_damage(margin);//(margin + self.weapon_proficiency()).max(0) * self.weapon.damage_dice;
+        let damage = self.compute_damage(margin); //(margin + self.weapon_proficiency()).max(0) * self.weapon.damage_dice;
 
         opponent.hp = opponent.hp - damage as i64;
 
         self.adjust_dice_pool((-fail_dice).min(0), EncounterType::Physical);
 
-        // println!(
-        //     "{} attacks {} getting a margin of {} (s: {}, f: {}) and dealing {} damage.",
-        //     self.name, opponent.name, margin, succ, fail, damage
-        // )
+        log::trace!(
+            "{} attacks {} getting a margin of {} and dealing {} damage.",
+            self.name,
+            opponent.name,
+            margin,
+            damage
+        )
     }
 }
 
-pub fn make_them_fight(character1: &mut Character, character2: &mut Character) -> Option<i64> {
-    character1.init_encounter(EncounterType::Physical);
-    character2.init_encounter(EncounterType::Physical);
+pub fn make_them_fight(mut red: Vec<&mut Character>, mut blue: Vec<&mut Character>) -> Option<i64> {
+    for character in red.iter_mut() {
+        character.init_encounter(EncounterType::Physical);
+    }
+
+    for character in blue.iter_mut() {
+        character.init_encounter(EncounterType::Physical);
+    }
 
     let mut turn = 0;
 
-    loop {
+    let mut dead_r = 0;
+    let mut dead_b = 0;
+
+    while red.iter().any(|c| !c.is_dead()) && blue.iter().any(|c| !c.is_dead()) {
         turn += 1;
-        character1.attacks(character2);
-        if character2.hp <= 0 {
-            break;
+        if turn > 15 {
+            return None;
         }
 
-        character2.attacks(character1);
-        if character1.hp <= 0 {
-            break;
-        }
+        log::trace!("Turn {}", turn);
+        log::trace!(
+            "{:?}",
+            red.iter()
+                .map(|c| (c.name.to_owned(), c.hp))
+                .collect::<Vec<(String, i64)>>()
+        );
+        log::trace!(
+            "{:?}",
+            blue.iter()
+                .map(|c| (c.name.to_owned(), c.hp))
+                .collect::<Vec<(String, i64)>>()
+        );
 
-        if turn > 15 {
-            return None
+        let mut init_r = 0;
+        let mut init_b = 0;
+
+        let mut target_r = 0;
+        let mut target_b = 0;
+
+        while init_r < red.len() || init_b < blue.len() {
+            // Find next living red char
+            log::trace!("Searching init");
+            while init_r < red.len() && red[init_r].is_dead() {
+                init_r += 1;
+            }
+
+            // If character is found
+            if init_r < red.len() {
+                // Find target
+                log::trace!("Searching target");
+                while blue[target_b].is_dead() {
+                    target_b += 1;
+                    target_b %= blue.len();
+                }
+                log::trace!("Target found");
+
+                // Attack target
+                red[init_r].attacks(blue[target_b]);
+
+                if blue[target_b].is_dead() {
+                    log::trace!("{} is dead.", blue[target_b].name);
+                    dead_b += 1;
+                }
+
+                target_b += 1;
+                target_b %= blue.len();
+                init_r += 1;
+            }
+
+            // All blues are dead
+            if dead_b == blue.len() {
+                break;
+            }
+
+            // Find next living blue
+            log::trace!("Searching init");
+            while init_b < blue.len() && blue[init_b].is_dead() {
+                init_b += 1;
+            }
+
+            // If found
+            if init_b < blue.len() {
+                log::trace!("Searching target");
+                while red[target_r].hp <= 0 {
+                    target_r += 1;
+                    target_r %= red.len();
+                }
+
+                blue[init_b].attacks(red[target_r]);
+
+                if red[target_r].is_dead() {
+                    log::trace!("{} is dead.", red[target_r].name);
+                    dead_r += 1;
+                }
+
+                target_r += 1;
+                target_r %= red.len();
+                init_b += 1;
+            }
+
+            if dead_r == red.len() {
+                break;
+            }
         }
     }
 
     Some(turn)
 }
+
+#[cfg(test)]
+mod combat_tests {
+    use crate::premade::{get_bob, get_drub};
+
+    use super::make_them_fight;
+
+    #[test_log::test]
+    fn make_them_fight_debug() {
+        let mut red = vec![get_bob(), get_bob()];
+        red[1].name = "Bob 2".to_owned();
+        let mut blue = vec![get_drub(), get_drub()];
+        blue[1].name = "Drub 2".to_owned();
+
+        make_them_fight(red.iter_mut().collect(), blue.iter_mut().collect());
+
+        print!(
+            "{:?}",
+            red.into_iter()
+                .map(|c| (c.name, c.hp))
+                .collect::<Vec<(String, i64)>>()
+        );
+        print!(
+            "{:?}",
+            blue.into_iter()
+                .map(|c| (c.name, c.hp))
+                .collect::<Vec<(String, i64)>>()
+        );
+    }
+}

src/lib.rs

@@ -7,4 +7,6 @@ pub mod equipment;
 pub mod skills;
 pub mod stats;
 
-pub mod random_character;
+pub mod random_character;
+
+pub mod premade;

src/premade/mod.rs

@@ -0,0 +1,61 @@
+use super::character::{create_character, Character};
+use super::class::Class;
+use super::equipment::{Armor, WeaponType};
+use super::stats::StatBlock;
+
+/*
+ * Bob has chosen to play a knight who is also an [NPC].
+ * He has chosen to make a knight who is strong and dexterous.
+ * He has also decided that his knight is not charismatic, but rather athletic.
+ */
+pub fn get_bob() -> Character {
+    create_character(
+        "Bob".to_owned(),
+        Class::Knight,
+        Class::NPC,
+        StatBlock::from((1, 1, 0, 0, 0, 0, 0, 0)),
+        StatBlock::from((0, 0, 2, 0, 0, 0, 0, -2)),
+        Armor::Medium,
+        WeaponType::BladedWeapon.create_weapon("Longsword".to_owned()),
+    )
+}
+
+/*
+ * Drub is a goblin.
+ */
+pub fn get_drub() -> Character {
+    let mut drub = create_character(
+        String::from("Drub"),
+        Class::NPC,
+        Class::NPC,
+        StatBlock::from((2, 3, 2, 0, 1, 0, -3, -2)),
+        StatBlock::default(),
+        Armor::Light,
+        WeaponType::SimpleWeapon.create_weapon(String::from("Knife")),
+    );
+
+    drub.proficiencies.simple_weapons = true;
+    drub.proficiencies.light_armor = true;
+
+    return drub
+}
+
+#[cfg(test)]
+mod premade_tests {
+
+    use super::{get_bob, get_drub};
+
+    #[test]
+    fn print_bob() {
+        let bob = get_bob();
+
+        println!("{}", bob);
+    }
+
+    #[test]
+    fn print_drub() {
+        let drub = get_drub();
+
+        println!("{}", drub);
+    }
+}