Some more functionality for battling, check if choice is valid, implement target resolvers.

src/dynamic_data/choices/mod.rs

@@ -5,7 +5,18 @@ use crate::dynamic_data::models::pokemon::Pokemon;
 pub enum TurnChoice<'a> {
     Move {
         user: &'a Pokemon<'a>,
-        used_move: Box<LearnedMove>,
+        used_move: Box<LearnedMove<'a>>,
+        target_side: u8,
+        target_index: u8,
+    },
+    Item {
+        user: &'a Pokemon<'a>,
+    },
+    Switch {
+        user: &'a Pokemon<'a>,
+    },
+    Flee {
+        user: &'a Pokemon<'a>,
     },
 }
 
@@ -13,6 +24,9 @@ impl<'a> TurnChoice<'a> {
     pub fn user(&self) -> &'a Pokemon<'a> {
         match self {
             TurnChoice::Move { user, .. } => user,
+            TurnChoice::Item { user, .. } => user,
+            TurnChoice::Switch { user, .. } => user,
+            TurnChoice::Flee { user, .. } => user,
         }
     }
 }

src/dynamic_data/flow/mod.rs

@@ -1 +1,2 @@
 pub mod choice_queue;
+pub mod target_resolver;

src/dynamic_data/flow/target_resolver.rs

@@ -0,0 +1,169 @@
+use crate::dynamic_data::models::battle::Battle;
+use crate::dynamic_data::models::pokemon::Pokemon;
+use crate::static_data::MoveTarget;
+use num_traits::abs;
+use parking_lot::RwLock;
+use std::sync::Arc;
+
+pub type TargetList<'a> = Vec<Option<Arc<RwLock<Pokemon<'a>>>>>;
+
+fn get_all_targets<'b>(battle: &Battle<'b>) -> TargetList<'b> {
+    let mut v =
+        Vec::with_capacity(battle.pokemon_per_side() as usize * battle.number_of_sides() as usize);
+    for side in battle.sides() {
+        for pokemon in side.pokemon() {
+            v.push(pokemon.as_ref().cloned());
+        }
+    }
+    v
+}
+
+fn get_opposite_side(side: u8) -> u8 {
+    if side == 0 {
+        return 1;
+    }
+    0
+}
+
+fn get_all_adjacent<'b>(side: u8, index: u8, battle: &Battle<'b>) -> TargetList<'b> {
+    let left = index as i32 - 1;
+    let right = index + 1;
+    if left < 0 && right >= battle.pokemon_per_side() {
+        return vec![
+            battle.get_pokemon(side, index).as_ref().cloned(),
+            battle
+                .get_pokemon(get_opposite_side(side), index)
+                .as_ref()
+                .cloned(),
+        ];
+    }
+    if left >= 0 {
+        return if right < battle.pokemon_per_side() {
+            vec![
+                battle.get_pokemon(side, index).as_ref().cloned(),
+                battle.get_pokemon(side, left as u8).as_ref().cloned(),
+                battle.get_pokemon(side, right).as_ref().cloned(),
+                battle
+                    .get_pokemon(get_opposite_side(side), index)
+                    .as_ref()
+                    .cloned(),
+            ]
+        } else {
+            vec![
+                battle.get_pokemon(side, index).as_ref().cloned(),
+                battle.get_pokemon(side, left as u8).as_ref().cloned(),
+                battle
+                    .get_pokemon(get_opposite_side(side), index)
+                    .as_ref()
+                    .cloned(),
+            ]
+        };
+    }
+
+    vec![
+        battle.get_pokemon(side, index).as_ref().cloned(),
+        battle.get_pokemon(side, right).as_ref().cloned(),
+        battle
+            .get_pokemon(get_opposite_side(side), index)
+            .as_ref()
+            .cloned(),
+    ]
+}
+
+fn get_all_adjacent_opponent<'b>(side: u8, index: u8, battle: &Battle<'b>) -> TargetList<'b> {
+    let left = index as i32 - 1;
+    let right = index + 1;
+    if left < 0 && right >= battle.pokemon_per_side() {
+        return vec![battle.get_pokemon(side, index).as_ref().cloned()];
+    }
+    if left >= 0 {
+        if right < battle.pokemon_per_side() {
+            return vec![
+                battle.get_pokemon(side, index).as_ref().cloned(),
+                battle.get_pokemon(side, left as u8).as_ref().cloned(),
+                battle.get_pokemon(side, right).as_ref().cloned(),
+            ];
+        }
+        return vec![
+            battle.get_pokemon(side, index).as_ref().cloned(),
+            battle.get_pokemon(side, left as u8).as_ref().cloned(),
+        ];
+    }
+    vec![
+        battle.get_pokemon(side, index).as_ref().cloned(),
+        battle.get_pokemon(side, right).as_ref().cloned(),
+    ]
+}
+
+pub fn resolve_targets<'b>(
+    side: u8,
+    index: u8,
+    target: MoveTarget,
+    battle: &Battle<'b>,
+) -> TargetList<'b> {
+    match target {
+        MoveTarget::Adjacent
+        | MoveTarget::AdjacentAlly
+        | MoveTarget::AdjacentAllySelf
+        | MoveTarget::AdjacentOpponent
+        | MoveTarget::Any
+        | MoveTarget::RandomOpponent
+        | MoveTarget::SelfUse => {
+            vec![battle.get_pokemon(side, index).as_ref().cloned()]
+        }
+        MoveTarget::All => get_all_targets(battle),
+        MoveTarget::AllAdjacent => get_all_adjacent(side, index, battle),
+        MoveTarget::AllAdjacentOpponent => get_all_adjacent_opponent(side, index, battle),
+        MoveTarget::AllAlly | MoveTarget::AllOpponent => {
+            let mut v = Vec::new();
+            for pokemon in battle.sides()[side as usize].pokemon() {
+                v.push(pokemon.as_ref().cloned());
+            }
+            v
+        }
+    }
+}
+
+pub fn is_valid_target(side: u8, index: u8, target: MoveTarget, user: &Pokemon) -> bool {
+    let user_side = user.get_battle_side_index();
+    let user_index = user.get_battle_index();
+    // If the user is not on the field, nothing is a valid target
+    if user_side.is_none() || user_index.is_none() {
+        return false;
+    }
+
+    match target {
+        MoveTarget::Adjacent | MoveTarget::AllAdjacent => {
+            let diff = abs(index as i32 - user_index.unwrap() as i32);
+            if diff == 0 {
+                return user_side.unwrap() != side;
+            }
+            diff <= 1
+        }
+        MoveTarget::AdjacentAlly => {
+            if user_side.unwrap() != side {
+                false
+            } else {
+                abs(index as i32 - user_index.unwrap() as i32) == 1
+            }
+        }
+        MoveTarget::AdjacentAllySelf => {
+            if user_side.unwrap() != side {
+                false
+            } else {
+                abs(index as i32 - user_index.unwrap() as i32) <= 1
+            }
+        }
+        MoveTarget::AdjacentOpponent | MoveTarget::AllAdjacentOpponent => {
+            if user_side.unwrap() == side {
+                false
+            } else {
+                abs(index as i32 - user_index.unwrap() as i32) <= 1
+            }
+        }
+        MoveTarget::All | MoveTarget::Any | MoveTarget::RandomOpponent => true,
+        MoveTarget::AllAlly => user_side.unwrap() == side,
+        MoveTarget::AllOpponent => user_side.unwrap() != side,
+        MoveTarget::SelfUse => user_side.unwrap() == side && user_index.unwrap() == index,
+    }
+}

src/dynamic_data/models/battle.rs

@@ -1,11 +1,14 @@
+use crate::dynamic_data::choices::TurnChoice;
 use crate::dynamic_data::event_hooks::event_hook::EventHook;
 use crate::dynamic_data::flow::choice_queue::ChoiceQueue;
+use crate::dynamic_data::flow::target_resolver::is_valid_target;
 use crate::dynamic_data::history::history_holder::HistoryHolder;
 use crate::dynamic_data::libraries::dynamic_library::DynamicLibrary;
 use crate::dynamic_data::models::battle_party::BattleParty;
 use crate::dynamic_data::models::battle_random::BattleRandom;
 use crate::dynamic_data::models::battle_result::BattleResult;
 use crate::dynamic_data::models::battle_side::BattleSide;
+use crate::dynamic_data::models::pokemon::Pokemon;
 use crate::dynamic_data::script_handling::script::Script;
 use crate::dynamic_data::script_handling::script_set::ScriptSet;
 use crate::dynamic_data::script_handling::volatile_scripts::VolatileScripts;
@@ -123,6 +126,18 @@ impl<'a> Battle<'a> {
         &self.current_turn_queue
     }
 
+    pub fn get_pokemon(&self, side: u8, index: u8) -> &Option<Arc<RwLock<Pokemon<'a>>>> {
+        let side = self.sides.get(side as usize);
+        if side.is_none() {
+            return &None;
+        }
+        let pokemon = side.unwrap().pokemon().get(index as usize);
+        if pokemon.is_none() {
+            return &None;
+        }
+        pokemon.unwrap()
+    }
+
     pub fn can_slot_be_filled(&self, side: u8, index: u8) -> bool {
         for party in &self.parties {
             if party.is_responsible_for_index(side, index) && party.has_pokemon_not_in_field() {
@@ -165,6 +180,34 @@ impl<'a> Battle<'a> {
         }
         self.has_ended = true;
     }
+
+    pub fn can_use(&self, choice: &TurnChoice) -> bool {
+        // If the user is not usable, we obviously can;t use the choice.
+        if !choice.user().is_usable() {
+            return false;
+        }
+        if let TurnChoice::Move {
+            used_move,
+            target_side,
+            target_index,
+            user,
+        } = choice
+        {
+            // TODO: Hook to change number of PP needed.
+            if used_move.remaining_pp() < 1 {
+                return false;
+            }
+            if !is_valid_target(
+                *target_side,
+                *target_index,
+                used_move.move_data().target(),
+                user,
+            ) {
+                return false;
+            }
+        }
+        true
+    }
 }
 
 impl<'a> VolatileScripts<'a> for Battle<'a> {

src/dynamic_data/models/executing_move.rs

@@ -61,7 +61,7 @@ pub struct ExecutingMove<'a, 'b> {
     number_of_hits: u8,
     hits: Vec<HitData>,
     user: &'a Pokemon<'b>,
-    chosen_move: &'a LearnedMove,
+    chosen_move: &'a LearnedMove<'a>,
     use_move: &'a MoveData,
     script: ScriptContainer,
     targets: Vec<Option<&'a Pokemon<'b>>>,

src/dynamic_data/models/learned_move.rs

@@ -1,2 +1,40 @@
+use crate::static_data::MoveData;
+
 #[derive(Debug)]
-pub struct LearnedMove {}
+pub struct LearnedMove<'a> {
+    move_data: &'a MoveData,
+    max_pp: u8,
+    remaining_pp: u8,
+    learn_method: MoveLearnMethod,
+}
+
+#[derive(Copy, Clone, Debug)]
+pub enum MoveLearnMethod {
+    Unknown = 0,
+    Level = 1,
+}
+
+impl<'a> LearnedMove<'a> {
+    pub fn new(move_data: &'a MoveData, learn_method: MoveLearnMethod) -> Self {
+        Self {
+            move_data,
+            max_pp: move_data.base_usages(),
+            remaining_pp: move_data.base_usages(),
+            learn_method,
+        }
+    }
+
+    pub fn move_data(&self) -> &MoveData {
+        self.move_data
+    }
+
+    pub fn max_pp(&self) -> u8 {
+        self.max_pp
+    }
+    pub fn remaining_pp(&self) -> u8 {
+        self.remaining_pp
+    }
+    pub fn learn_method(&self) -> MoveLearnMethod {
+        self.learn_method
+    }
+}

src/dynamic_data/models/pokemon.rs

@@ -81,7 +81,7 @@ pub struct Pokemon<'a> {
 
     battle_data: Option<PokemonBattleData<'a>>,
 
-    moves: [Option<LearnedMove>; MAX_MOVES],
+    moves: [Option<LearnedMove<'a>>; MAX_MOVES],
     allowed_experience: bool,
 
     types: Vec<u8>,

src/static_data/moves/move_data.rs

@@ -2,16 +2,16 @@ use crate::static_data::SecondaryEffect;
 use crate::StringKey;
 use std::collections::HashSet;
 
-#[derive(PartialEq, Debug)]
+#[derive(Copy, Clone, PartialEq, Debug)]
 pub enum MoveCategory {
-    Physical,
-    Special,
-    Status,
+    Physical = 0,
+    Special = 1,
+    Status = 2,
 }
 
-#[derive(PartialEq, Debug)]
+#[derive(Copy, Clone, PartialEq, Debug)]
 pub enum MoveTarget {
-    Adjacent,
+    Adjacent = 0,
     AdjacentAlly,
     AdjacentAllySelf,
     AdjacentOpponent,
@@ -69,6 +69,36 @@ impl MoveData {
         }
     }
 
+    pub fn name(&self) -> &StringKey {
+        &self.name
+    }
+    pub fn move_type(&self) -> u8 {
+        self.move_type
+    }
+    pub fn category(&self) -> MoveCategory {
+        self.category
+    }
+    pub fn base_power(&self) -> u8 {
+        self.base_power
+    }
+    pub fn accuracy(&self) -> u8 {
+        self.accuracy
+    }
+    pub fn base_usages(&self) -> u8 {
+        self.base_usages
+    }
+    pub fn target(&self) -> MoveTarget {
+        self.target
+    }
+
+    pub fn priority(&self) -> i8 {
+        self.priority
+    }
+
+    pub fn secondary_effect(&self) -> &SecondaryEffect {
+        &self.secondary_effect
+    }
+
     pub fn has_flag(&self, key: &str) -> bool {
         self.flags.contains(key)
     }