From 7e43c2706d9b34f321600af70c73bb90dce6081b Mon Sep 17 00:00:00 2001
From: Tom Barrett <tom@tombarrett.xyz>
Date: Mon, 1 Feb 2021 20:08:27 +0100
Subject: added column and rows constants

---
 src/main.rs | 77 +++++++++++++++++++++++++++++++------------------------------
 1 file changed, 39 insertions(+), 38 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 4c2fdf8..cef5b84 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -17,6 +17,8 @@ pub const TILE_WIDTH: f32 = 16.0;
 pub const BORDER_SIZE: f32 = 3.0;
 pub const SHIFT_X: f32 = 50.0;
 pub const SHIFT_Y: f32 = 50.0;
+pub const COLUMNS: usize = 8;
+pub const ROWS: usize = 8;
 
 #[derive(Clone, Copy, PartialEq)]
 enum Occupant {
@@ -158,41 +160,15 @@ impl Game {
 
         let mut grid = Vec::new();
         let mut y = 0.0;
-        for _ in 0..8 {
-            let mut column = Vec::new();
-            column.push(Cell::new(Point2 {
-                x: SHIFT_X,
-                y: y + SHIFT_Y,
-            }));
-            column.push(Cell::new(Point2 {
-                x: 1.0 * (TILE_WIDTH * TILE_SCALE + BORDER_SIZE) + SHIFT_X,
-                y: y + SHIFT_Y,
-            }));
-            column.push(Cell::new(Point2 {
-                x: 2.0 * (TILE_WIDTH * TILE_SCALE + BORDER_SIZE) + SHIFT_X,
-                y: y + SHIFT_Y,
-            }));
-            column.push(Cell::new(Point2 {
-                x: 3.0 * (TILE_WIDTH * TILE_SCALE + BORDER_SIZE) + SHIFT_X,
-                y: y + SHIFT_Y,
-            }));
-            column.push(Cell::new(Point2 {
-                x: 4.0 * (TILE_WIDTH * TILE_SCALE + BORDER_SIZE) + SHIFT_X,
-                y: y + SHIFT_Y,
-            }));
-            column.push(Cell::new(Point2 {
-                x: 5.0 * (TILE_WIDTH * TILE_SCALE + BORDER_SIZE) + SHIFT_X,
-                y: y + SHIFT_Y,
-            }));
-            column.push(Cell::new(Point2 {
-                x: 6.0 * (TILE_WIDTH * TILE_SCALE + BORDER_SIZE) + SHIFT_X,
-                y: y + SHIFT_Y,
-            }));
-            column.push(Cell::new(Point2 {
-                x: 7.0 * (TILE_WIDTH * TILE_SCALE + BORDER_SIZE) + SHIFT_X,
-                y: y + SHIFT_Y,
-            }));
 
+        for _ in 0..COLUMNS {
+            let mut column = Vec::new();
+            for j in 0..ROWS {
+                column.push(Cell::new(Point2 {
+                    x: (j as f32) * (TILE_WIDTH * TILE_SCALE + BORDER_SIZE) + SHIFT_X,
+                    y: y + SHIFT_Y,
+                }));
+            }
             y += TILE_HEIGHT * TILE_SCALE + BORDER_SIZE;
             grid.push(column);
         }
@@ -226,17 +202,17 @@ impl EventHandler for Game {
 
         let mut last = Occupant::None;
         let mut connected = Vec::new();
-        for (i, row) in self.grid.iter_mut().enumerate() {
+        for i in 0..COLUMNS {
             let mut c = Vec::new();
-            for (j, cell) in row.iter_mut().enumerate() {
-                if cell.occupant == last {
+            for j in 0..ROWS {
+                if self.grid[i][j].occupant == last {
                     c.push((i, j));
                     c.push((i, j - 1));
                 } else {
                     connected.push(c.clone());
                     c.clear();
                 }
-                last = cell.occupant;
+                last = self.grid[i][j].occupant;
             }
             connected.push(c);
             last = Occupant::None;
@@ -250,6 +226,31 @@ impl EventHandler for Game {
             }
         }
 
+        connected.clear();
+        for i in 0..COLUMNS {
+            let mut c = Vec::new();
+            for j in 0..ROWS {
+                if self.grid[j][i].occupant == last {
+                    c.push((j, i));
+                    c.push((j - 1, i));
+                } else {
+                    connected.push(c.clone());
+                    c.clear();
+                }
+                last = self.grid[j][i].occupant;
+            }
+            connected.push(c);
+            last = Occupant::None;
+        }
+
+        for c in connected.iter() {
+            if c.len() > 3 {
+                for (j, i) in c.iter() {
+                    self.grid[*j][*i].occupant = Occupant::Explosion;
+                }
+            }
+        }
+
         Ok(())
     }
 
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