santa/
session.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
use std::collections::{BTreeSet, HashMap};

use serde::{Deserialize, Serialize};

use abstutil::{deserialize_multimap, serialize_multimap, MultiMap, Timer};
use map_model::BuildingID;
use widgetry::{Color, EventCtx};

use crate::levels::Level;
use crate::music::Music;

/// Persistent state that lasts across levels.
#[derive(Serialize, Deserialize)]
pub struct Session {
    pub levels: Vec<Level>,
    /// Enable this to use the levels, instead of overwriting them with the version in the code.
    pub enable_modding: bool,
    pub colors: ColorScheme,

    /// Level title -> the top 3 scores
    pub high_scores: HashMap<String, Vec<usize>>,
    pub levels_unlocked: usize,
    pub current_vehicle: String,
    pub vehicles_unlocked: BTreeSet<String>,
    pub upzones_unlocked: usize,
    pub upzones_explained: bool,
    // This was added after the main release, so keep old save files working by allowing it to be
    // missing.
    #[serde(
        serialize_with = "serialize_multimap",
        deserialize_with = "deserialize_multimap",
        default
    )]
    pub upzones_per_level: MultiMap<String, BuildingID>,

    #[serde(skip_serializing, skip_deserializing)]
    pub music: Music,
    pub play_music: bool,
}

#[derive(Serialize, Deserialize)]
pub struct ColorScheme {
    pub house: Color,
    pub apartment: Color,
    pub store: Color,
    pub visited: Color,

    pub score: Color,
    pub energy: Color,
    pub boost: Color,
}

impl Session {
    pub fn load() -> Session {
        let levels = Level::all();

        if let Ok(mut session) = abstio::maybe_read_json::<Session>(
            abstio::path_player("santa.json"),
            &mut Timer::throwaway(),
        ) {
            if session.levels != levels {
                if session.enable_modding {
                    warn!("Using modified levels from the session data");
                } else {
                    warn!("Levels have changed; overwriting with the new version from the code");
                    session.levels = levels;
                }
            }
            return session;
        }

        let mut high_scores = HashMap::new();
        for level in &levels {
            high_scores.insert(level.title.clone(), Vec::new());
        }
        Session {
            levels,
            enable_modding: false,
            colors: ColorScheme {
                house: Color::hex("#688865"),
                apartment: Color::hex("#C0F879"),
                store: Color::hex("#EE702E"),
                visited: Color::BLACK,

                score: Color::hex("#83AA51"),
                energy: Color::hex("#D8B830"),
                boost: Color::hex("#A32015"),
            },

            high_scores,
            levels_unlocked: 1,
            current_vehicle: "bike".to_string(),
            vehicles_unlocked: vec!["bike".to_string()].into_iter().collect(),
            upzones_unlocked: 0,
            upzones_explained: false,
            upzones_per_level: MultiMap::new(),

            music: Music::empty(),
            play_music: true,
        }
    }

    /// If a message is returned, a new level and some powers were unlocked.
    pub fn record_score(&mut self, level: String, score: usize) -> Option<Vec<String>> {
        let scores = self.high_scores.get_mut(&level).unwrap();
        scores.push(score);
        scores.sort_unstable();
        scores.reverse();
        scores.truncate(3);

        let idx = self
            .levels
            .iter()
            .position(|lvl| lvl.title == level)
            .unwrap();
        let level = &self.levels[idx];
        let msg = if idx + 1 == self.levels_unlocked && score >= level.goal {
            if idx + 1 == self.levels.len() {
                Some(vec![
                    "All levels complete! Nice.".to_string(),
                    "Can you improve your score on other levels?".to_string(),
                ])
            } else {
                self.levels_unlocked += 1;
                let mut messages = vec!["New level unlocked!".to_string()];
                if level.unlock_upzones > 0 {
                    self.upzones_unlocked += level.unlock_upzones;
                    messages.push(format!(
                        "Unlocked the ability to upzone {} buildings",
                        level.unlock_upzones
                    ));
                }
                for x in &level.unlock_vehicles {
                    self.vehicles_unlocked.insert(x.clone());
                    messages.push(format!("Unlocked the {}", x));
                }
                Some(messages)
            }
        } else {
            // Nothing new unlocked
            None
        };
        self.save();
        msg
    }

    pub fn unlock_all(&mut self) {
        self.upzones_unlocked = 0;
        for level in &self.levels {
            self.vehicles_unlocked.extend(level.unlock_vehicles.clone());
            self.upzones_unlocked += level.unlock_upzones;
        }
        self.levels_unlocked = self.levels.len();
        self.upzones_explained = true;
    }

    pub fn update_music(&mut self, ctx: &mut EventCtx) {
        let play_music = self.play_music;
        self.music.event(ctx, &mut self.play_music);
        if play_music != self.play_music {
            self.save();
        }
    }

    pub fn save(&self) {
        abstio::write_json(abstio::path_player("santa.json"), self);
    }
}