veloren_common/states/
basic_melee.rs

1use crate::{
2    combat,
3    comp::{
4        CharacterState, MeleeConstructor, StateUpdate, character_state::OutputEvents,
5        tool::ToolKind,
6    },
7    event::LocalEvent,
8    outcome::Outcome,
9    states::{
10        behavior::{CharacterBehavior, JoinData},
11        utils::*,
12    },
13};
14use serde::{Deserialize, Serialize};
15use std::time::Duration;
16
17/// Separated out to condense update portions of character state
18#[derive(Copy, Clone, Debug, PartialEq, Serialize, Deserialize)]
19pub struct StaticData {
20    /// How long until state should deal damage
21    pub buildup_duration: Duration,
22    /// How long the state is swinging for
23    pub swing_duration: Duration,
24    /// How long the state has until exiting
25    pub recover_duration: Duration,
26    /// At what fraction of swing_duration to make the hit
27    pub hit_timing: f32,
28    /// Used to construct the Melee attack
29    pub melee_constructor: MeleeConstructor,
30    /// Adjusts turning rate during the attack
31    pub ori_modifier: f32,
32    /// Used to indicate to the frontend what ability this is for any special
33    /// effects
34    pub frontend_specifier: Option<FrontendSpecifier>,
35    /// What key is used to press ability
36    pub ability_info: AbilityInfo,
37}
38
39#[derive(Copy, Clone, Debug, PartialEq, Serialize, Deserialize)]
40pub struct Data {
41    /// Struct containing data that does not change over the course of the
42    /// character state
43    pub static_data: StaticData,
44    /// Timer for each stage
45    pub timer: Duration,
46    /// What section the character stage is in
47    pub stage_section: StageSection,
48    /// Whether the attack can deal more damage
49    pub exhausted: bool,
50}
51
52impl CharacterBehavior for Data {
53    fn behavior(&self, data: &JoinData, output_events: &mut OutputEvents) -> StateUpdate {
54        let mut update = StateUpdate::from(data);
55
56        handle_orientation(data, &mut update, self.static_data.ori_modifier, None);
57        handle_move(data, &mut update, 0.7);
58        handle_jump(data, output_events, &mut update, 1.0);
59
60        match self.stage_section {
61            StageSection::Buildup => {
62                if self.timer < self.static_data.buildup_duration {
63                    // Build up
64                    update.character = CharacterState::BasicMelee(Data {
65                        timer: tick_attack_or_default(data, self.timer, None),
66                        ..*self
67                    });
68                } else {
69                    // Transitions to swing section of stage
70                    update.character = CharacterState::BasicMelee(Data {
71                        timer: Duration::default(),
72                        stage_section: StageSection::Action,
73                        ..*self
74                    });
75                }
76            },
77            StageSection::Action => {
78                if !self.exhausted
79                    && self.timer.as_secs_f32()
80                        >= self.static_data.swing_duration.as_secs_f32()
81                            * self.static_data.hit_timing
82                {
83                    update.character = CharacterState::BasicMelee(Data {
84                        timer: tick_attack_or_default(data, self.timer, None),
85                        exhausted: true,
86                        ..*self
87                    });
88
89                    let precision_mult = combat::compute_precision_mult(data.inventory, data.msm);
90                    let tool_stats = get_tool_stats(data, self.static_data.ability_info);
91
92                    data.updater.insert(
93                        data.entity,
94                        self.static_data
95                            .melee_constructor
96                            .create_melee(precision_mult, tool_stats)
97                            .with_block_breaking(
98                                data.inputs
99                                    .break_block_pos
100                                    .map(|p| {
101                                        (
102                                            p.map(|e| e.floor() as i32),
103                                            self.static_data.ability_info.tool,
104                                        )
105                                    })
106                                    .filter(|(_, tool)| {
107                                        matches!(tool, Some(ToolKind::Pick | ToolKind::Shovel))
108                                    }),
109                            ),
110                    );
111                    // Send local event used for frontend shenanigans
112                    if self.static_data.ability_info.tool == Some(ToolKind::Shovel) {
113                        output_events.emit_local(LocalEvent::CreateOutcome(Outcome::GroundDig {
114                            pos: data.pos.0 + *data.ori.look_dir() * (data.body.max_radius()),
115                        }));
116                    }
117                } else if self.timer < self.static_data.swing_duration {
118                    // Swings
119                    update.character = CharacterState::BasicMelee(Data {
120                        timer: tick_attack_or_default(data, self.timer, None),
121                        ..*self
122                    });
123                } else {
124                    // Transitions to recover section of stage
125                    update.character = CharacterState::BasicMelee(Data {
126                        timer: Duration::default(),
127                        stage_section: StageSection::Recover,
128                        ..*self
129                    });
130                }
131            },
132            StageSection::Recover => {
133                if self.timer < self.static_data.recover_duration {
134                    // Recovery
135                    update.character = CharacterState::BasicMelee(Data {
136                        timer: tick_attack_or_default(
137                            data,
138                            self.timer,
139                            Some(data.stats.recovery_speed_modifier),
140                        ),
141                        ..*self
142                    });
143                } else {
144                    // Done
145                    if input_is_pressed(data, self.static_data.ability_info.input) {
146                        reset_state(self, data, output_events, &mut update);
147                    } else {
148                        end_melee_ability(data, &mut update);
149                    }
150                }
151            },
152            _ => {
153                // If it somehow ends up in an incorrect stage section
154                end_melee_ability(data, &mut update);
155            },
156        }
157
158        // At end of state logic so an interrupt isn't overwritten
159        handle_interrupts(data, &mut update, output_events);
160
161        update
162    }
163}
164
165fn reset_state(
166    data: &Data,
167    join: &JoinData,
168    output_events: &mut OutputEvents,
169    update: &mut StateUpdate,
170) {
171    handle_input(
172        join,
173        output_events,
174        update,
175        data.static_data.ability_info.input,
176    );
177}
178
179#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
180pub enum FrontendSpecifier {
181    FlameTornado,
182}
veloren_common/states/basic_melee.rs

veloren_common/states/
basic_melee.rs
