From 7b3e94a78ae05ec3327c9f9b722a8953f9a5aa49 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Laura=20Kl=C3=BCnder?= <laura@codingcatgirl.de>
Date: Fri, 22 Dec 2017 15:16:28 +0100
Subject: [PATCH] Area.slow_down_factor

---
 src/c3nav/editor/forms.py                     |  2 +-
 .../migrations/0066_area_slow_down_factor.py  | 22 +++++++++++++++++++
 src/c3nav/mapdata/models/geometry/space.py    |  2 ++
 src/c3nav/routing/router.py                   |  5 +++++
 4 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 src/c3nav/mapdata/migrations/0066_area_slow_down_factor.py

diff --git a/src/c3nav/editor/forms.py b/src/c3nav/editor/forms.py
index e2d5dd38..4fe25b1a 100644
--- a/src/c3nav/editor/forms.py
+++ b/src/c3nav/editor/forms.py
@@ -226,7 +226,7 @@ def create_editor_form(editor_model):
                        'ordering', 'category', 'width', 'groups', 'color', 'priority', 'icon_name',
                        'base_altitude', 'waytype', 'access_restriction', 'height', 'default_height', 'door_height',
                        'outside', 'can_search', 'can_describe', 'geometry', 'single', 'altitude', 'short_label',
-                       'origin_space', 'target_space', 'data', 'comment',
+                       'origin_space', 'target_space', 'data', 'comment', 'slow_down_factor',
                        'extra_seconds', 'speed', 'description', 'speed_up', 'description_up',
                        'allow_levels', 'allow_spaces', 'allow_areas', 'allow_pois', 'left', 'top', 'right', 'bottom']
     field_names = [field.name for field in editor_model._meta.get_fields() if not field.one_to_many]
diff --git a/src/c3nav/mapdata/migrations/0066_area_slow_down_factor.py b/src/c3nav/mapdata/migrations/0066_area_slow_down_factor.py
new file mode 100644
index 00000000..5eb878be
--- /dev/null
+++ b/src/c3nav/mapdata/migrations/0066_area_slow_down_factor.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.7 on 2017-12-22 14:08
+from __future__ import unicode_literals
+
+from decimal import Decimal
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mapdata', '0065_access_restriction_group'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='area',
+            name='slow_down_factor',
+            field=models.DecimalField(decimal_places=2, default=1, max_digits=6, validators=[django.core.validators.MinValueValidator(Decimal('0.01'))], verbose_name='slow down factor'),
+        ),
+    ]
diff --git a/src/c3nav/mapdata/models/geometry/space.py b/src/c3nav/mapdata/models/geometry/space.py
index 040ad3f4..39285b16 100644
--- a/src/c3nav/mapdata/models/geometry/space.py
+++ b/src/c3nav/mapdata/models/geometry/space.py
@@ -112,6 +112,8 @@ class Area(SpaceGeometryMixin, SpecificLocation, models.Model):
     An area in a space.
     """
     geometry = GeometryField('polygon')
+    slow_down_factor = models.DecimalField(_('slow down factor'), max_digits=6, decimal_places=2, default=1,
+                                           validators=[MinValueValidator(Decimal('0.01'))])
 
     class Meta:
         verbose_name = _('Area')
diff --git a/src/c3nav/routing/router.py b/src/c3nav/routing/router.py
index dd73dfa3..4c732c81 100644
--- a/src/c3nav/routing/router.py
+++ b/src/c3nav/routing/router.py
@@ -220,6 +220,11 @@ class Router:
             if edge.access_restriction:
                 restrictions.setdefault(edge.access_restriction, RouterRestriction()).edges.append(index)
 
+        for area in areas:
+            if area.slow_down_factor != 1:
+                area_nodes = np.array(area.nodes)
+                graph[area_nodes.reshape((-1, 1)), area_nodes] *= float(area.slow_down_factor)
+
         # finalize waytype matrixes
         for waytype in waytypes:
             waytype.upwards_indices = np.array(waytype.upwards_indices, dtype=np.uint32).reshape((-1, 2))