MicroPythonOS · ThomasFarstrike · Mar 11, 2026 · Mar 6, 2026
diff --git a/internal_filesystem/apps/cz.ucw.pavel.floodit/META-INF/MANIFEST.JSON b/internal_filesystem/apps/cz.ucw.pavel.floodit/META-INF/MANIFEST.JSON
@@ -0,0 +1,24 @@
+{
+"name": "Floodit",
+"publisher": "Pavel Machek",
+"short_description": "Simple game with colors.",
+"long_description": "Game with colors, where objective is to turn whole board into single color in minimum number of steps.",
+"icon_url": "https://apps.micropythonos.com/apps/cz.ucw.pavel.floodit/icons/cz.ucw.pavel.floodit_0.0.1_64x64.png",
+"download_url": "https://apps.micropythonos.com/apps/cz.ucw.pavel.floodit/mpks/cz.ucw.pavel.floodit_0.0.1.mpk",
+"fullname": "cz.ucw.pavel.floodit",
+"version": "0.0.1",
+"category": "utilities",
+"activities": [
+    {
+      "entrypoint": "assets/main.py",
+      "classname": "Main",
+      "intent_filters": [
+        {
+          "action": "main",
+          "category": "launcher"
+        }
+      ]
+    }
+  ]
+}
+
diff --git a/internal_filesystem/apps/cz.ucw.pavel.floodit/assets/main.py b/internal_filesystem/apps/cz.ucw.pavel.floodit/assets/main.py
@@ -0,0 +1,210 @@
+import time
+import random
+
+"""
+Flood-It game
+
+Fill the entire board with a single color
+using the smallest number of moves.
+
+Touch a color button to flood the region
+starting from the top-left corner.
+"""
+
+from mpos import Activity
+
+try:
+    import lvgl as lv
+except ImportError:
+    pass
+
+
+class Main(Activity):
+
+    COLS = 10
+    ROWS = 10
+
+    COLORS = [
+        0xE74C3C,  # red
+        0xF1C40F,  # yellow
+        0x2ECC71,  # green
+        0x3498DB,  # blue
+        0x9B59B6,  # purple
+        0xE67E22,  # orange
+    ]
+
+    def __init__(self):
+        super().__init__()
+
+        self.board = []
+        self.cells = []
+
+        self.moves = 0
+
+    # ---------------------------------------------------------------------
+
+    def onCreate(self):
+
+        self.screen = lv.obj()
+        self.screen.remove_flag(lv.obj.FLAG.SCROLLABLE)
+
+        font = lv.font_montserrat_20
+
+        score = lv.label(self.screen)
+        score.align(lv.ALIGN.TOP_LEFT, 5, 25)
+        score.set_text("Moves")
+        score.set_style_text_font(font, 0)
+        self.lb_score = score
+
+        d = lv.display_get_default()
+        self.SCREEN_WIDTH = d.get_horizontal_resolution()
+        self.SCREEN_HEIGHT = d.get_vertical_resolution()
+
+        # color buttons
+        btn_size = 45
+        spacing = 5
+
+        self.CELL = min(
+            self.SCREEN_WIDTH // (self.COLS + 2),
+            (self.SCREEN_HEIGHT - btn_size) // (self.ROWS + 3)
+        )
+
+        board_x = (self.SCREEN_WIDTH - self.CELL * self.COLS) // 2
+        board_y = (self.SCREEN_HEIGHT - self.CELL * self.ROWS) // 2
+
+        for r in range(self.ROWS):
+            row = []
+            for c in range(self.COLS):
+
+                o = lv.obj(self.screen)
+                o.set_size(self.CELL - 2, self.CELL - 2)
+
+                o.set_pos(
+                    board_x + c * self.CELL + 1,
+                    board_y + r * self.CELL + 1 - btn_size // 2
+                )
+
+                o.set_style_radius(4, 0)
+                o.set_style_border_width(1, 0)
+
+                row.append(o)
+
+            self.cells.append(row)
+
+
+        for i, col in enumerate(self.COLORS):
+
+            btn = lv.button(self.screen)
+            btn.set_size(btn_size, btn_size)
+
+            btn.align(
+                lv.ALIGN.BOTTOM_LEFT,
+                5 + i * (btn_size + spacing),
+                -5
+            )
+
+            btn.set_style_bg_color(lv.color_hex(col), 0)
+
+            btn.add_event_cb(
+                lambda e, c=i: self.pick_color(c),
+                lv.EVENT.CLICKED,
+                None
+            )
+
+        focusgroup = lv.group_get_default()
+        if focusgroup:
+            focusgroup.add_obj(self.screen)
+
+        self.setContentView(self.screen)
+
+        self.new_game()
+
+    # ---------------------------------------------------------------------
+
+    def new_game(self):
+
+        self.moves = 0
+        self.lb_score.set_text("Moves\n0")
+
+        self.board = [
+            [random.randrange(len(self.COLORS)) for _ in range(self.COLS)]
+            for _ in range(self.ROWS)
+        ]
+
+        self.redraw()
+
+    # ---------------------------------------------------------------------
+
+    def pick_color(self, color):
+
+        start_color = self.board[0][0]
+
+        if start_color == color:
+            return
+
+        self.flood_fill(start_color, color)
+
+        self.moves += 1
+        self.lb_score.set_text("Moves\n%d" % self.moves)
+
+        self.redraw()
+
+        if self.check_win():
+            self.win()
+
+    # ---------------------------------------------------------------------
+
+    def flood_fill(self, old, new):
+
+        stack = [(0, 0)]
+
+        while stack:
+
+            r, c = stack.pop()
+
+            if not (0 <= r < self.ROWS and 0 <= c < self.COLS):
+                continue
+
+            if self.board[r][c] != old:
+                continue
+
+            self.board[r][c] = new
+
+            stack.append((r + 1, c))
+            stack.append((r - 1, c))
+            stack.append((r, c + 1))
+            stack.append((r, c - 1))
+
+    # ---------------------------------------------------------------------
+
+    def check_win(self):
+
+        color = self.board[0][0]
+
+        for r in range(self.ROWS):
+            for c in range(self.COLS):
+                if self.board[r][c] != color:
+                    return False
+
+        return True
+
+    # ---------------------------------------------------------------------
+
+    def win(self):
+
+        label = lv.label(self.screen)
+        label.set_text("Finished in %d moves!" % self.moves)
+        label.center()
+
+    # ---------------------------------------------------------------------
+
+    def redraw(self):
+
+        for r in range(self.ROWS):
+            for c in range(self.COLS):
+
+                v = self.board[r][c]
+
+                self.cells[r][c].set_style_bg_color(
+                    lv.color_hex(self.COLORS[v]), 0
+                )
diff --git a/internal_filesystem/apps/cz.ucw.pavel.floodit/res/mipmap-mdpi/icon_64x64.png b/internal_filesystem/apps/cz.ucw.pavel.floodit/res/mipmap-mdpi/icon_64x64.png