Print game state differences to log

.gitignore

@@ -1,2 +1,3 @@
 /target
 Cargo.lock
+*.log

src/game.rs

@@ -1,4 +1,6 @@
 use std::{
+    fs::OpenOptions,
+    io::Write,
     sync::{
         atomic::{AtomicBool, AtomicU32, Ordering::SeqCst},
         Arc, Mutex, MutexGuard,
@@ -8,7 +10,10 @@ use std::{
 
 use anyhow::Result;
 use assetpath::AssetPath;
-use engine::prelude::{cgmath::vec3, *};
+use engine::prelude::{
+    cgmath::{vec3, Vector2},
+    *,
+};
 
 use crate::{
     board::{Board, BoardSlot, BoardSlotState},
@@ -49,12 +54,14 @@ pub enum MillState {
     None,
 }
 
+#[derive(Debug, Clone, Copy)]
 pub enum LogSeverity {
     Basic,
     Debug,
 }
 
-const LOG_SEVERITY: LogSeverity = LogSeverity::Debug;
+const LOG_SEVERITY: LogSeverity = LogSeverity::Basic;
+const LOG_FILE: &str = "millgame.log";
 
 impl PlayerColor {
     pub fn swap(&mut self) {
@@ -80,6 +87,135 @@ impl PlayerColor {
     }
 }
 
+#[derive(Default, Debug)]
+struct TurnState {
+    white_infos: Vec<(StoneState, Entity, Option<Vector2<f32>>)>,
+    black_infos: Vec<(StoneState, Entity, Option<Vector2<f32>>)>,
+    board_infos: Vec<((usize, usize, usize), Vector2<f32>, BoardSlotState)>,
+}
+
+impl TurnState {
+    pub fn new(game: &MillGame) -> Result<Self> {
+        let mut white_infos = Vec::new();
+        let mut black_infos = Vec::new();
+
+        game.scene.lock().unwrap().on_scene(|scene| {
+            for white_stone in game.white_stones.lock().unwrap().iter() {
+                let pos = match white_stone.state {
+                    StoneState::ReadyToBePlaced => None,
+                    StoneState::Placed => Some(
+                        scene
+                            .entity(white_stone.stone)?
+                            .get_component::<Location>()?
+                            .position()
+                            .truncate(),
+                    ),
+                    StoneState::Dead => None,
+                };
+
+                white_infos.push((white_stone.state, white_stone.stone, pos));
+            }
+
+            for black_stone in game.black_stones.lock().unwrap().iter() {
+                let pos = match black_stone.state {
+                    StoneState::ReadyToBePlaced => None,
+                    StoneState::Placed => Some(
+                        scene
+                            .entity(black_stone.stone)?
+                            .get_component::<Location>()?
+                            .position()
+                            .truncate(),
+                    ),
+                    StoneState::Dead => None,
+                };
+
+                black_infos.push((black_stone.state, black_stone.stone, pos));
+            }
+
+            Ok(())
+        })?;
+
+        let board_infos: Vec<((usize, usize, usize), Vector2<f32>, BoardSlotState)> = game
+            .board
+            .lock()
+            .unwrap()
+            .slots()
+            .iter()
+            .flatten()
+            .flatten()
+            .map(|slot| ((slot.x, slot.y, slot.z), slot.position, slot.state()))
+            .collect();
+
+        Ok(Self {
+            white_infos,
+            black_infos,
+            board_infos,
+        })
+    }
+
+    pub fn diff(&self, other: &Self) -> (Self, Self) {
+        let mut my_diffs = Self::default();
+        let mut other_diffs = Self::default();
+
+        for my_info in self.white_infos.iter() {
+            let other_info = other.white_infos.iter().find(|o| my_info.1 == o.1).unwrap();
+
+            if my_info.0 != other_info.0 || my_info.2 != other_info.2 {
+                my_diffs.white_infos.push(*my_info);
+                other_diffs.white_infos.push(*other_info);
+            }
+        }
+
+        for my_info in self.black_infos.iter() {
+            let other_info = other.black_infos.iter().find(|o| my_info.1 == o.1).unwrap();
+
+            if my_info.0 != other_info.0 || my_info.2 != other_info.2 {
+                my_diffs.black_infos.push(*my_info);
+                other_diffs.black_infos.push(*other_info);
+            }
+        }
+
+        for my_slot in self.board_infos.iter() {
+            let other_slot = other.board_infos.iter().find(|o| my_slot.0 == o.0).unwrap();
+
+            if my_slot.2 != other_slot.2 {
+                my_diffs.board_infos.push(*my_slot);
+                other_diffs.board_infos.push(*other_slot);
+            }
+        }
+
+        (my_diffs, other_diffs)
+    }
+
+    pub fn log(&self, severity: LogSeverity) {
+        if !self.white_infos.is_empty() {
+            MillGame::log(" == WHITE STONES ==", severity);
+
+            for white_info in self.white_infos.iter() {
+                MillGame::log(&format!("{:?}", white_info), severity);
+            }
+        }
+
+        if !self.black_infos.is_empty() {
+            MillGame::log(" == BLACK STONES ==", severity);
+
+            for black_info in self.black_infos.iter() {
+                MillGame::log(&format!("{:?}", black_info), severity);
+            }
+        }
+
+        MillGame::log(" == BOARD ==", severity);
+
+        for board_info in self.board_infos.iter() {
+            MillGame::log(&format!("{:?}", board_info), severity);
+        }
+    }
+
+    pub fn is_empty(&self) -> bool {
+        self.white_infos.is_empty() && self.black_infos.is_empty() && self.board_infos.is_empty()
+    }
+}
+
 pub struct MillGame {
     engine: Arc<Engine>,
     last_turn_timing: Mutex<Duration>,
@@ -98,6 +234,7 @@ pub struct MillGame {
     mouse_y: AtomicU32,
 
     turn_finished: AtomicBool,
+    turn_states: Mutex<Vec<TurnState>>,
 
     selected_field: Mutex<Option<(usize, usize, usize)>>,
 
@@ -105,10 +242,10 @@ pub struct MillGame {
 
     white_player_label: Arc<Label>,
     black_player_label: Arc<Label>,
-    start_button: Arc<Button>,
+    _start_button: Arc<Button>,
-    grid: Arc<Grid>,
+    _grid: Arc<Grid>,
 
-    gui: Arc<GuiBuilder>,
+    _gui: Arc<GuiBuilder>,
 }
 
 impl MillGame {
@@ -222,17 +359,18 @@ impl MillGame {
             mouse_y: AtomicU32::new(0),
 
             turn_finished: AtomicBool::new(false),
+            turn_states: Mutex::default(),
 
             selected_field: Mutex::default(),
 
             simple_ai: SimpleAI::new(PlayerColor::White),
 
-            grid: grid.clone(),
+            _grid: grid.clone(),
             white_player_label,
             black_player_label,
-            start_button: start_button.clone(),
+            _start_button: start_button.clone(),
 
-            gui,
+            _gui: gui,
         });
 
         start_button.set_callback({
@@ -245,7 +383,7 @@ impl MillGame {
                 }
 
                 if let Some(me) = weak_self.upgrade() {
-                    Self::log("start game", LogSeverity::Debug);
+                    Self::log(" ===== START GAME =====", LogSeverity::Basic);
 
                     *me.state.lock().unwrap() = GameState::Placing;
                     *me.current_player.lock().unwrap() = PlayerColor::Black;
@@ -271,15 +409,46 @@ impl MillGame {
         self.turn_finished.store(true, SeqCst);
     }
 
+    fn print_game_state(&self, severity: LogSeverity, log_state: bool) -> Result<()> {
+        let current_turn_state = TurnState::new(self)?;
+
+        // verity that last turn actually something happened
+        debug_assert!(!current_turn_state.is_empty());
+
+        if log_state {
+            current_turn_state.log(severity);
+        }
+
+        let mut turn_states = self.turn_states.lock().unwrap();
+
+        if !turn_states.is_empty() {
+            let (new_diff, old_diff) = current_turn_state.diff(turn_states.last().unwrap());
+
+            Self::log(" ===== OLD DIFF =====", severity);
+            old_diff.log(severity);
+            Self::log(" ===== NEW DIFF =====", severity);
+            new_diff.log(severity);
+        }
+
+        turn_states.push(current_turn_state);
+
+        Ok(())
+    }
+
     fn next_game_step(&self) -> Result<()> {
         {
             let mut state = self.state.lock().unwrap();
 
             Self::log(
-                &format!(" ===== NEW TURN ({:?}) =====", state),
+                &format!(
+                    " =========================== NEW TURN ({:?}) ===========================",
+                    state
+                ),
                 LogSeverity::Basic,
             );
 
+            self.print_game_state(LogSeverity::Basic, false)?;
+
             match *state {
                 GameState::Placing => {
                     if !self
@@ -440,7 +609,11 @@ impl MillGame {
         match player_color {
             PlayerColor::White => {
                 Self::log(
-                    &format!(" ==> white stone placed at {:?}", (x, y, z)),
+                    &format!(
+                        " ==> white stone ({:?}) placed at {:?}",
+                        stone.stone,
+                        (x, y, z)
+                    ),
                     LogSeverity::Basic,
                 );
 
@@ -448,7 +621,11 @@ impl MillGame {
             }
             PlayerColor::Black => {
                 Self::log(
-                    &format!(" ==> black stone placed at {:?}", (x, y, z)),
+                    &format!(
+                        " ==> black stone ({:?}) placed at {:?}",
+                        stone.stone,
+                        (x, y, z)
+                    ),
                     LogSeverity::Basic,
                 );
 
@@ -507,7 +684,8 @@ impl MillGame {
                 BoardSlotState::Black(e) => {
                     Self::log(
                         &format!(
-                            " ==> black stone moved from {:?} to {:?}",
+                            " ==> black stone ({:?}) moved from {:?} to {:?}",
+                            e,
                             (x, y, z),
                             (tx, ty, tz)
                         ),
@@ -519,7 +697,8 @@ impl MillGame {
                 BoardSlotState::White(e) => {
                     Self::log(
                         &format!(
-                            " ==> white stone moved from {:?} to {:?}",
+                            " ==> white stone ({:?}) moved from {:?} to {:?}",
+                            e,
                             (x, y, z),
                             (tx, ty, tz)
                         ),
@@ -556,7 +735,8 @@ impl MillGame {
             BoardSlotState::Black(e) => {
                 Self::log(
                     &format!(
-                        " ==> white player removes black stone at {:?}",
+                        " ==> white player removes black stone ({:?}) at {:?}",
+                        e,
                         (slot.x, slot.y, slot.z)
                     ),
                     LogSeverity::Basic,
@@ -567,7 +747,8 @@ impl MillGame {
             BoardSlotState::White(e) => {
                 Self::log(
                     &format!(
-                        " ==> black player removes white stone at {:?}",
+                        " ==> black player removes white stone ({:?}) at {:?}",
+                        e,
                         (slot.x, slot.y, slot.z)
                     ),
                     LogSeverity::Basic,
@@ -693,10 +874,16 @@ impl MillGame {
 
     pub fn log(s: &str, log_severity: LogSeverity) {
         match (LOG_SEVERITY, log_severity) {
-            (LogSeverity::Basic, LogSeverity::Basic) => println!("{}", s),
+            (LogSeverity::Basic, LogSeverity::Basic) => Self::write(s),
             (LogSeverity::Basic, LogSeverity::Debug) => (),
-            (LogSeverity::Debug, LogSeverity::Basic) => println!("{}", s),
+            (LogSeverity::Debug, LogSeverity::Basic) => Self::write(s),
-            (LogSeverity::Debug, LogSeverity::Debug) => println!("{}", s),
+            (LogSeverity::Debug, LogSeverity::Debug) => Self::write(s),
+        }
+    }
+
+    fn write(s: &str) {
+        if let Ok(mut file) = OpenOptions::new().append(true).create(true).open(&LOG_FILE) {
+            if let Err(_) = file.write_all(format!("{}\n", s.to_string()).as_bytes()) {}
         }
     }
 }
@@ -842,6 +1029,11 @@ impl EngineObject for MillGame {
                                             ) {
                                                 (BoardSlotState::Black(_), PlayerColor::Black)
                                                 | (BoardSlotState::White(_), PlayerColor::White) => {
+                                                    Self::log(
+                                                        &format!("Selected ({:?})", (tx, ty, tz)),
+                                                        LogSeverity::Basic,
+                                                    );
+
                                                     *selected_slot = Some((tx, ty, tz));
                                                 }
 
@@ -857,7 +1049,17 @@ impl EngineObject for MillGame {
                         }
                     }
                     MouseButton::Middle => self.camera_controls.lock().unwrap().hold(),
-                    MouseButton::Right => (),
+                    MouseButton::Right => {
+                        let mut selected_slot = self.selected_field.lock().unwrap();
+
+                        if selected_slot.is_some() {
+                            Self::log(
+                                &format!("Released selection ({:?})", selected_slot.unwrap()),
+                                LogSeverity::Basic,
+                            );
+                            *selected_slot = None;
+                        }
+                    }
                     MouseButton::Forward => (),
                     MouseButton::Backward => (),
                 }