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use crate::{
    comp::{character_state::OutputEvents, controller::InputKind, CharacterState, StateUpdate},
    states::{
        behavior::{CharacterBehavior, JoinData},
        utils::*,
    },
};
use serde::{Deserialize, Serialize};
use std::time::Duration;

/// Separated out to condense update portions of character state
#[derive(Copy, Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct StaticData {
    /// How long the state is playing for
    pub play_duration: Duration,
    /// Adjusts turning rate during the attack
    pub ori_modifier: f32,
    /// What key is used to press ability
    pub ability_info: AbilityInfo,
}

#[derive(Copy, Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct Data {
    /// Struct containing data that does not change over the course of the
    /// character state
    pub static_data: StaticData,
    /// Timer for each stage
    pub timer: Duration,
    /// What section the character stage is in
    pub stage_section: StageSection,
    /// Whether the attack can deal more damage
    pub exhausted: bool,
}

impl CharacterBehavior for Data {
    fn behavior(&self, data: &JoinData, output_events: &mut OutputEvents) -> StateUpdate {
        let mut update = StateUpdate::from(data);

        handle_orientation(data, &mut update, self.static_data.ori_modifier, None);
        handle_move(data, &mut update, 0.7);
        handle_jump(data, output_events, &mut update, 1.0);

        match self.stage_section {
            StageSection::Action => {
                if !self.exhausted {
                    update.character = CharacterState::Music(Data {
                        timer: Duration::default(),
                        exhausted: true,
                        ..*self
                    });
                } else if self.timer < self.static_data.play_duration {
                    // Play
                    update.character = CharacterState::Music(Data {
                        timer: tick_attack_or_default(data, self.timer, None),
                        ..*self
                    });
                } else {
                    // Done
                    if input_is_pressed(data, self.static_data.ability_info.input) {
                        reset_state(self, data, output_events, &mut update);
                    } else {
                        end_ability(data, &mut update);
                    }
                }
            },
            _ => {
                // If it somehow ends up in an incorrect stage section
                end_ability(data, &mut update);
            },
        }

        // At end of state logic so an interrupt isn't overwritten
        if !input_is_pressed(data, self.static_data.ability_info.input)
            && input_is_pressed(data, InputKind::Roll)
        {
            handle_input(data, output_events, &mut update, InputKind::Roll);
        }

        update
    }
}

fn reset_state(
    data: &Data,
    join: &JoinData,
    output_events: &mut OutputEvents,
    update: &mut StateUpdate,
) {
    handle_input(
        join,
        output_events,
        update,
        data.static_data.ability_info.input,
    );
}