From 4a85861d6be944aee0ae037f12825f9e60058d6f Mon Sep 17 00:00:00 2001
From: Stan Soldatov <118521851+iwatkot@users.noreply.github.com>
Date: Fri, 20 Dec 2024 15:38:04 +0100
Subject: [PATCH] Hotfix: Docker Exit Code 139 when rotating the map

---
 maps4fs/generator/component.py |  7 ++++++-
 maps4fs/generator/grle.py      | 11 +++++++++++
 maps4fs/generator/i3d.py       |  1 +
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/maps4fs/generator/component.py b/maps4fs/generator/component.py
index c256e8b..dce0b02 100644
--- a/maps4fs/generator/component.py
+++ b/maps4fs/generator/component.py
@@ -356,6 +356,7 @@ def fit_polygon_into_bounds(
             offset = (self.map_size / 2) - (self.map_rotated_size / 2)
             self.logger.debug("Translating the polygon by %s", offset)
             polygon = translate(polygon, xoff=offset, yoff=offset)
+            self.logger.debug("Rotated and translated polygon.")
 
         if margin:
             polygon = polygon.buffer(margin, join_style="mitre")
@@ -367,12 +368,16 @@ def fit_polygon_into_bounds(
 
         # Intersect the polygon with the bounds to fit it within the map
         fitted_polygon = polygon.intersection(bounds)
+        self.logger.debug("Fitted the polygon into the bounds: %s", bounds)
 
         if not isinstance(fitted_polygon, Polygon):
             raise ValueError("The fitted polygon is not a valid polygon.")
 
         # Return the fitted polygon points
-        return list(fitted_polygon.exterior.coords)
+        as_list = list(fitted_polygon.exterior.coords)
+        if not as_list:
+            raise ValueError("The fitted polygon has no points.")
+        return as_list
 
     def get_infolayer_path(self, layer_name: str) -> str | None:
         """Returns the path to the info layer file.
diff --git a/maps4fs/generator/grle.py b/maps4fs/generator/grle.py
index 52a22b7..c48fd1e 100644
--- a/maps4fs/generator/grle.py
+++ b/maps4fs/generator/grle.py
@@ -108,6 +108,10 @@ def _add_farmlands(self) -> None:
             self.game.weights_dir_path(self.map_directory), "infoLayer_farmlands.png"
         )
 
+        self.logger.info(
+            "Adding farmlands to the InfoLayer PNG file: %s.", info_layer_farmlands_path
+        )
+
         if not os.path.isfile(info_layer_farmlands_path):
             self.logger.warning("InfoLayer PNG file %s not found.", info_layer_farmlands_path)
             return
@@ -139,12 +143,19 @@ def _add_farmlands(self) -> None:
                 )
                 continue
 
+            self.logger.debug("Fitted field %s contains %s points.", farmland_id, len(fitted_field))
+
             field_np = np.array(fitted_field, np.int32)
             field_np = field_np.reshape((-1, 1, 2))
 
+            self.logger.debug(
+                "Created a numpy array and reshaped it. Number of points: %s", len(field_np)
+            )
+
             # Infolayer image is 1/2 of the size of the map image, that's why we need to divide
             # the coordinates by 2.
             field_np = field_np // 2
+            self.logger.debug("Divided the coordinates by 2.")
 
             # pylint: disable=no-member
             try:
diff --git a/maps4fs/generator/i3d.py b/maps4fs/generator/i3d.py
index dee4271..e87c49c 100644
--- a/maps4fs/generator/i3d.py
+++ b/maps4fs/generator/i3d.py
@@ -126,6 +126,7 @@ def _add_fields(self) -> None:
             return
 
         self.logger.info("Found %s fields in textures info layer.", len(fields))
+        self.logger.debug("Starging to add fields to the I3D file.")
 
         root = tree.getroot()
         gameplay_node = root.find(".//TransformGroup[@name='gameplay']")