Add event counting to game log, completing section 5.29

src/components/serialize.rs

@@ -1,3 +1,5 @@
+use std::collections::HashMap;
+
 use ::serde::{Deserialize, Serialize};
 use ::specs::prelude::*;
 use ::specs_derive::*;
@@ -19,4 +21,5 @@ pub struct SerializationHelper {
 pub struct DMSerializationHelper {
     pub map: MasterDungeonMap,
     pub log: Vec<Vec<crate::gamelog::LogFragment>>,
+    pub events: HashMap<String, i32>,
 }

src/effects/damage.rs

@@ -11,6 +11,7 @@ use crate::{colors, gamelog, EquipmentChanged, Map, StatusEffect};
 
 pub fn inflict_damage(ecs: &mut World, damage: &EffectSpawner, target: Entity) {
     let mut pools = ecs.write_storage::<Pools>();
+    let player_entity = ecs.fetch::<Entity>();
     if let Some(pool) = pools.get_mut(target) {
         if !pool.god_mode {
             if let Some(creator) = damage.creator {
@@ -31,6 +32,14 @@ pub fn inflict_damage(ecs: &mut World, damage: &EffectSpawner, target: Entity) {
                     },
                     Targets::Single { target },
                 );
+                if target == *player_entity {
+                    gamelog::record_event("Damage Taken", amount);
+                }
+                if let Some(creator) = damage.creator {
+                    if creator == *player_entity {
+                        gamelog::record_event("Damage Inflicted", amount);
+                    }
+                }
 
                 if pool.hit_points.current < 1 {
                     add_effect(

src/gamelog.rs

@@ -2,11 +2,13 @@
 //!
 //! Where the exploits of the current game are recorded
 mod builder;
+mod events;
 mod logstore;
 
 use ::rltk::RGB;
 use ::serde::{Deserialize, Serialize};
 pub use builder::*;
+pub use events::*;
 use logstore::*;
 pub use logstore::{clear_log, clone_log, log_display, restore_log};
 

src/gamelog/builder.rs

@@ -81,7 +81,7 @@ impl Logger {
     pub fn damage(mut self, damage: i32) -> Self {
         self.fragments.push(LogFragment {
             color: colors::RED,
-            text: format!("{}", damage).to_string(),
+            text: format!("{}", damage),
         });
 
         self

src/gamelog/events.rs

@@ -0,0 +1,43 @@
+use std::collections::HashMap;
+use std::sync::Mutex;
+
+lazy_static! {
+    static ref EVENTS: Mutex<HashMap<String, i32>> = Mutex::new(HashMap::new());
+}
+
+pub fn clear_events() {
+    EVENTS.lock().unwrap().clear();
+}
+
+pub fn record_event<T: ToString>(event: T, n: i32) {
+    let event_name = event.to_string();
+    let mut events_lock = EVENTS.lock();
+    let events = events_lock.as_mut().unwrap();
+    if let Some(e) = events.get_mut(&event_name) {
+        *e += n;
+    } else {
+        events.insert(event_name, n);
+    }
+}
+
+pub fn get_event_count<T: ToString>(event: T) -> i32 {
+    let event_name = event.to_string();
+    let events_lock = EVENTS.lock();
+    let events = events_lock.unwrap();
+    if let Some(e) = events.get(&event_name) {
+        *e
+    } else {
+        0
+    }
+}
+
+pub fn clone_events() -> HashMap<String, i32> {
+    EVENTS.lock().unwrap().clone()
+}
+
+pub fn load_events(events: HashMap<String, i32>) {
+    clear_events();
+    events.iter().for_each(|(k, v)| {
+        EVENTS.lock().unwrap().insert(k.to_string(), *v);
+    });
+}

src/gui.rs

@@ -421,3 +421,56 @@ pub fn ranged_target(
 
     (ItemMenuResult::NoResponse, None)
 }
+
+pub fn game_over(ctx: &mut Rltk) -> GameOverResult {
+    ctx.print_color_centered(15, colors::YELLOW, colors::BLACK, "Your journey has ended!");
+    ctx.print_color_centered(
+        17,
+        colors::WHITE,
+        colors::BLACK,
+        "One day, we'll tell you all about how you did.",
+    );
+    ctx.print_color_centered(
+        18,
+        colors::WHITE,
+        colors::BLACK,
+        "That day, sadly, is not in this chapter...",
+    );
+
+    ctx.print_color_centered(
+        19,
+        colors::WHITE,
+        colors::BLACK,
+        format!("You lived for {} turns.", gamelog::get_event_count("Turn")),
+    );
+    ctx.print_color_centered(
+        20,
+        colors::RED,
+        colors::BLACK,
+        &format!(
+            "You suffered {} points of damage.",
+            gamelog::get_event_count("Damage Taken")
+        ),
+    );
+    ctx.print_color_centered(
+        21,
+        colors::RED,
+        colors::BLACK,
+        &format!(
+            "You inflicted {} points of damage.",
+            gamelog::get_event_count("Damage Inflicted")
+        ),
+    );
+
+    ctx.print_color_centered(
+        23,
+        colors::MAGENTA,
+        colors::BLACK,
+        "Press any key to return to the menu.",
+    );
+
+    match ctx.key {
+        None => GameOverResult::NoSelection,
+        Some(_) => GameOverResult::QuitToMenu,
+    }
+}

src/gui/menu.rs

@@ -336,34 +336,6 @@ pub fn main_menu(gs: &mut State, ctx: &mut Rltk) -> MainMenuResult {
     }
 }
 
-pub fn game_over(ctx: &mut Rltk) -> GameOverResult {
-    ctx.print_color_centered(15, colors::YELLOW, colors::BLACK, "Your journey has ended!");
-    ctx.print_color_centered(
-        17,
-        colors::WHITE,
-        colors::BLACK,
-        "One day, we'll tell you all about how you did.",
-    );
-    ctx.print_color_centered(
-        18,
-        colors::WHITE,
-        colors::BLACK,
-        "That day, sadly, is not in this chapter...",
-    );
-
-    ctx.print_color_centered(
-        20,
-        colors::MAGENTA,
-        colors::BLACK,
-        "Press any key to return to the menu.",
-    );
-
-    match ctx.key {
-        None => GameOverResult::NoSelection,
-        Some(_) => GameOverResult::QuitToMenu,
-    }
-}
-
 pub fn show_cheat_mode(_gs: &mut State, ctx: &mut Rltk) -> CheatMenuResult {
     let count = 4;
     let mut y = (25 - (count / 2)) as i32;

src/main.rs

@@ -164,6 +164,8 @@ fn register_components(state: &mut State) {
 /// * Creates the [`Player`](crate::spawner::player)
 /// * Generates the first [`map`](crate::state::State::generate_world_map)
 fn init_state() -> State {
+    use ::rltk::{Point, RandomNumberGenerator};
+
     let mut state = State::new();
 
     register_components(&mut state);
@@ -176,8 +178,8 @@ fn init_state() -> State {
 
     state.ecs.insert(MasterDungeonMap::new());
     state.ecs.insert(Map::new(1, 64, 64, "New Map"));
-    state.ecs.insert(::rltk::Point::zero());
+    state.ecs.insert(Point::zero());
-    state.ecs.insert(::rltk::RandomNumberGenerator::new());
+    state.ecs.insert(RandomNumberGenerator::new());
 
     let player_entity = spawner::player(&mut state.ecs, 0, 0);
     state.ecs.insert(player_entity);
@@ -193,10 +195,12 @@ fn init_state() -> State {
 
 /// The entry point
 fn main() -> ::rltk::BError {
-    let context = ::rltk::RltkBuilder::simple(80, 60)
+    use ::rltk::{main_loop, RltkBuilder};
+
+    let context = RltkBuilder::simple(80, 60)
         .unwrap()
         .with_title("Roguelike Tutorial")
         .build()?;
 
-    ::rltk::main_loop(context, init_state())
+    main_loop(context, init_state())
 }

src/saveload_system.rs

@@ -44,6 +44,7 @@ pub fn save_game(ecs: &mut World) {
         .with(DMSerializationHelper {
             map: dungeon_master,
             log: crate::gamelog::clone_log(),
+            events: crate::gamelog::clone_events(),
         })
         .marked::<SimpleMarker<SerializeMe>>()
         .build();
@@ -300,6 +301,7 @@ pub fn load_game(ecs: &mut World) {
             *dungeon_master = h.map.clone();
             deleteme2 = Some(e);
             crate::gamelog::restore_log(&mut h.log.clone());
+            crate::gamelog::load_events(h.events.clone());
         }
 
         for (e, _p, pos) in (&entities, &player, &position).join() {

src/state.rs

@@ -169,6 +169,8 @@ impl State {
         gamelog::line("Welcome to")
             .append_color(colors::CYAN, "Rusty Roguelike")
             .log();
+
+        gamelog::clear_events();
     }
 }
 
@@ -219,6 +221,9 @@ impl GameState for State {
             }
             RunState::AwaitingInput => {
                 newrunstate = player_input(self, ctx);
+                if newrunstate != RunState::AwaitingInput {
+                    crate::gamelog::record_event("Turn", 1);
+                }
             }
             RunState::Ticking => {
                 let mut should_change_target = false;