Implement level change

src/game.rs

@@ -24,7 +24,21 @@ impl Game {
             }
         };
         if can_go {
-            self.player.change_position(dx, dy);
+            if level.get_element(new_x as i16, new_y as i16).unwrap() == LevelElement::StairDown {
+                self.player.set_position(
+                    player_pos.get_level() + 1,
+                    self.levels[(player_pos.get_level() + 1) as usize].start_x as u16,
+                    self.levels[(player_pos.get_level() + 1) as usize].start_y as u16,
+                );
+            } else if level.get_element(new_x as i16, new_y as i16).unwrap() == LevelElement::StairUp {
+                self.player.set_position(
+                    player_pos.get_level() - 1,
+                    self.levels[(player_pos.get_level() - 1) as usize].end_x as u16,
+                    self.levels[(player_pos.get_level() - 1) as usize].end_y as u16,
+                );
+            } else {
+                self.player.change_position(dx, dy);
+            }
         }
     }
 }

src/level.rs

@@ -24,6 +24,8 @@ pub struct Level {
     pub(crate) structure: [[LevelElement; LEVEL_HEIGHT]; LEVEL_WIDTH],
     pub(crate) start_x: usize,
     pub(crate) start_y: usize,
+    pub(crate) end_x: usize,
+    pub(crate) end_y: usize,
 }
 
 impl Level {
@@ -33,6 +35,8 @@ impl Level {
             structure: s,
             start_x: 1,
             start_y: 1,
+            end_x: 1,
+            end_y: 1
         }
     }
     pub fn get_element(&self, x: i16, y: i16) -> Option<LevelElement> {

src/level_generator.rs

@@ -44,7 +44,6 @@ impl Room {
             height: 0,
             connection_down: None,
             connection_right: None,
-            // connected: false,
         }
     }
     /// change the size and position of a room randomly within its bounds
@@ -228,6 +227,8 @@ impl LevelGenerator {
         let mut s = [[LevelElement::Wall; 1 + ROOMS_HORIZONTAL * ROOM_HEIGHT]; 1 + ROOMS_VERTICAL * ROOM_WIDTH];
         let mut start_x: usize = 0;
         let mut start_y: usize = 0;
+        let mut end_x: usize = 0;
+        let mut end_y: usize = 0;
         for c in 0..ROOMS_VERTICAL {
             for r in 0..ROOMS_HORIZONTAL {
                 let top = 1 + r * ROOM_HEIGHT;
@@ -239,7 +240,9 @@ impl LevelGenerator {
                     }
                 }
                 if room.kind == RoomType::StairDown {
-                    s[left + room.offset_x + rng.gen_range(0..room.width)][top + room.offset_y + rng.gen_range(0..room.height)] = LevelElement::StairDown;
+                    end_x = left + room.offset_x + rng.gen_range(0..room.width);
+                    end_y = top + room.offset_y + rng.gen_range(0..room.height);
+                    s[end_x][end_y] = LevelElement::StairDown;
                 }
                 if room.kind == RoomType::Start || room.kind == RoomType::StairUp {
                     start_x = left + room.offset_x + rng.gen_range(0..room.width);
@@ -283,6 +286,8 @@ impl LevelGenerator {
             structure: s,
             start_x,
             start_y,
+            end_x,
+            end_y,
         }
     }
 }

src/level_widget.rs

@@ -96,10 +96,10 @@ impl<'a> Widget for LevelWidget<'a> {
                                 self.set_cell(buf, x, y, " ", FG_BROWN, Color::Gray);
                             }
                             LevelElement::StairDown => {
-                                self.set_cell(buf, x, y, ">", Color::Yellow, Color::Gray);
+                                self.set_cell(buf, x, y, ">", Color::Black, Color::Gray);
                             }
                             LevelElement::StairUp => {
-                                self.set_cell(buf, x, y, "<", Color::Yellow, Color::Gray);
+                                self.set_cell(buf, x, y, "<", Color::Black, Color::Gray);
                             }
                         }
                     }

src/player.rs

@@ -32,6 +32,10 @@ impl Player {
     pub fn change_position(&mut self, dx: i8, dy: i8) {
         self.position.change(dx, dy);
     }
+
+    pub fn set_position(&mut self, level: u8, x: u16, y:u16) {
+        self.position.set(level, x, y);
+    }
 }
 
 #[test]

src/position.rs

@@ -29,4 +29,9 @@ impl Position {
         self.x = ((self.x as i16) + dx as i16) as u16;
         self.y = ((self.y as i16) + dy as i16) as u16;
     }
+    pub fn set(&mut self, level: u8, x: u16, y:u16) {
+        self.level = level;
+        self.x = x;
+        self.y = y;
+    }
 }