Display grid coordinates

rust/cli_player/src/ui_screens/set_boats_layout.rs

@@ -81,7 +81,12 @@ fn ui<B: Backend>(f: &mut Frame<B>, model: &mut SetBotsLayoutScreen, rules: &Gam
         .set_default_empty_char(' ')
         .add_colored_cells(current_boat)
         .add_colored_cells(other_boats)
-        .set_legend("n next boat \nr rotate boat \n\n↓ ↑ → ← move boat \n\nEnter confirm layout");
+        .set_legend(
+            "n        next boat     \n\
+                     r        rotate boat    \n\n\
+                     ← ↓↑ →   move boat      \n\n\
+                     Enter    confirm layout",
+        );
 
     let (w, h) = game_map_widget.estimated_size();
     let area = centered_rect_size(w, h, &f.size());

rust/cli_player/src/ui_widgets/game_map_widget.rs

@@ -1,11 +1,14 @@
-use crate::ui_screens::utils::centered_rect_size;
-use sea_battle_backend::data::{Coordinates, GameRules, PlayConfiguration};
 use std::fmt::Display;
+
 use tui::buffer::Buffer;
 use tui::layout::Rect;
 use tui::style::{Color, Style};
 use tui::widgets::{BorderType, Widget};
 
+use sea_battle_backend::data::{Coordinates, GameRules, PlayConfiguration};
+
+use crate::ui_screens::utils::centered_rect_size;
+
 pub struct ColoredCells {
     pub color: Color,
     pub cells: Vec<Coordinates>,
@@ -69,9 +72,23 @@ impl<'a> Widget for GameMapWidget<'a> {
 
         // Paint game grid
         for y in 0..(self.rules.map_height + 1) {
+            if y < self.rules.map_height {
+                buf.get_mut(area.x, area.y + 2 + (y as u16 * 2))
+                    .set_char(alphabet.chars().nth(y).unwrap());
+            }
+
             for x in 0..(self.rules.map_width + 1) {
-                let o_x = area.x + (x as u16 * 2);
-                let o_y = area.y + (y as u16 * 2);
+                if x < self.rules.map_width {
+                    buf.set_string(
+                        area.x + 2 + (x as u16 * 2) - (x as u16) / 10,
+                        area.y,
+                        x.to_string(),
+                        Style::default(),
+                    );
+                }
+
+                let o_x = 1 + area.x + (x as u16 * 2);
+                let o_y = 1 + area.y + (y as u16 * 2);
 
                 buf.get_mut(o_x, o_y).set_symbol(match (x, y) {
                     (0, 0) => symbols.top_left,