180 lines
6.8 KiB
Rust
Executable File
180 lines
6.8 KiB
Rust
Executable File
use std::ops::Deref;
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use std::sync::Arc;
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use num_traits::abs;
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use crate::dynamic_data::Battle;
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use crate::dynamic_data::Pokemon;
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use crate::static_data::MoveTarget;
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/// Helper type for the vector of targets we will return.
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pub type TargetList = Vec<Option<Arc<Pokemon>>>;
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/// This returns all Pokemon in the battle.
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fn get_all_targets(battle: &Battle) -> TargetList {
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let mut v = Vec::with_capacity(battle.pokemon_per_side() as usize * battle.number_of_sides() as usize);
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for side in battle.sides() {
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for pokemon in side.pokemon().deref() {
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v.push(pokemon.as_ref().cloned());
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}
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}
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v
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}
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/// Little helper function to get the other side. 1 --> 0, 0 --> 1
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fn get_opposite_side(side: u8) -> u8 {
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if side == 0 {
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return 1;
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}
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0
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}
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/// Gets all Pokemon that are adjacent to of directly opposite of a Pokemon. This means the target,
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/// the Pokemon left of it, the Pokemon right of it, and the Pokemon opposite of it.
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fn get_all_adjacent_opponent(side: u8, index: u8, battle: &Battle) -> TargetList {
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let left = index as i32 - 1;
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let right = index + 1;
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if left < 0 && right >= battle.pokemon_per_side() {
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return vec![
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battle.get_pokemon(side, index).as_ref().cloned(),
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battle.get_pokemon(get_opposite_side(side), index).as_ref().cloned(),
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];
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}
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if left >= 0 {
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return if right < battle.pokemon_per_side() {
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vec![
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battle.get_pokemon(side, index).as_ref().cloned(),
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battle.get_pokemon(side, left as u8).as_ref().cloned(),
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battle.get_pokemon(side, right).as_ref().cloned(),
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battle
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.get_pokemon(get_opposite_side(side), left as u8)
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.as_ref()
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.cloned(),
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battle.get_pokemon(get_opposite_side(side), index).as_ref().cloned(),
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battle.get_pokemon(get_opposite_side(side), right).as_ref().cloned(),
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]
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} else {
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vec![
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battle.get_pokemon(side, index).as_ref().cloned(),
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battle.get_pokemon(side, left as u8).as_ref().cloned(),
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battle.get_pokemon(get_opposite_side(side), index).as_ref().cloned(),
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battle
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.get_pokemon(get_opposite_side(side), left as u8)
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.as_ref()
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.cloned(),
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]
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};
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}
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vec![
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battle.get_pokemon(side, index).as_ref().cloned(),
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battle.get_pokemon(side, right).as_ref().cloned(),
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battle.get_pokemon(get_opposite_side(side), index).as_ref().cloned(),
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battle.get_pokemon(get_opposite_side(side), right).as_ref().cloned(),
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]
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}
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/// Gets all Pokemon that are adjacent to a Pokemon. This includes the target, the Pokemon to the
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/// left of it, and the Pokemon to the right of it.
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fn get_all_adjacent(side: u8, index: u8, battle: &Battle) -> TargetList {
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let left = index as i32 - 1;
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let right = index + 1;
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if left < 0 && right >= battle.pokemon_per_side() {
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return vec![battle.get_pokemon(side, index).as_ref().cloned()];
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}
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if left >= 0 {
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if right < battle.pokemon_per_side() {
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return vec![
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battle.get_pokemon(side, index).as_ref().cloned(),
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battle.get_pokemon(side, left as u8).as_ref().cloned(),
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battle.get_pokemon(side, right).as_ref().cloned(),
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];
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}
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return vec![
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battle.get_pokemon(side, index).as_ref().cloned(),
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battle.get_pokemon(side, left as u8).as_ref().cloned(),
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];
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}
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vec![
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battle.get_pokemon(side, index).as_ref().cloned(),
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battle.get_pokemon(side, right).as_ref().cloned(),
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]
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}
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/// Gets the target for a specific move target type, given the targeted position.
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pub fn resolve_targets(side: u8, index: u8, target: MoveTarget, battle: &Battle) -> TargetList {
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match target {
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// These all resolve to a single position. We let the client deal with where the target is,
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// and just return the Pokemon at that given target here.
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MoveTarget::Adjacent
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| MoveTarget::AdjacentAlly
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| MoveTarget::AdjacentAllySelf
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| MoveTarget::AdjacentOpponent
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| MoveTarget::Any
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| MoveTarget::RandomOpponent
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| MoveTarget::SelfUse => {
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vec![battle.get_pokemon(side, index).as_ref().cloned()]
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}
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// If all pokemon are requested, give all Pokemon on the battlefield
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MoveTarget::All => get_all_targets(battle),
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// If the adjacent Pokemon are requested, pass those.
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MoveTarget::AllAdjacent => get_all_adjacent(side, index, battle),
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// If the adjacent and opponent Pokemon are requested, give those.
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MoveTarget::AllAdjacentOpponent => get_all_adjacent_opponent(side, index, battle),
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// If all Pokemon on a side are requested, simply give all Pokemon on the side back, and let
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// the client deal with what side is passed.
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MoveTarget::AllAlly | MoveTarget::AllOpponent => {
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let mut v = Vec::new();
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for pokemon in battle.sides()[side as usize].pokemon().deref() {
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v.push(pokemon.as_ref().cloned());
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}
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v
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}
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}
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}
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/// Checks whether a given side and index are valid for a given move target and user.
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pub fn is_valid_target(side: u8, index: u8, target: MoveTarget, user: &Pokemon) -> bool {
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let user_side = user.get_battle_side_index();
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let user_index = user.get_battle_index();
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// If the user is not on the field, nothing is a valid target
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if user_side.is_none() || user_index.is_none() {
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return false;
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}
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match target {
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MoveTarget::Adjacent | MoveTarget::AllAdjacent => {
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let diff = abs(index as i32 - user_index.unwrap() as i32);
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if diff == 0 {
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return user_side.unwrap() != side;
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}
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diff <= 1
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}
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MoveTarget::AdjacentAlly => {
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if user_side.unwrap() != side {
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false
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} else {
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abs(index as i32 - user_index.unwrap() as i32) == 1
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}
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}
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MoveTarget::AdjacentAllySelf => {
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if user_side.unwrap() != side {
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false
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} else {
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abs(index as i32 - user_index.unwrap() as i32) <= 1
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}
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}
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MoveTarget::AdjacentOpponent | MoveTarget::AllAdjacentOpponent => {
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if user_side.unwrap() == side {
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false
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} else {
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abs(index as i32 - user_index.unwrap() as i32) <= 1
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}
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}
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MoveTarget::All | MoveTarget::Any | MoveTarget::RandomOpponent => true,
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MoveTarget::AllAlly => user_side.unwrap() == side,
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MoveTarget::AllOpponent => user_side.unwrap() != side,
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MoveTarget::SelfUse => user_side.unwrap() == side && user_index.unwrap() == index,
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}
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}
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