corrections corners bugs, clean tree structure and start entrance

params.yml

@@ -4,7 +4,7 @@ buildings:
     min_tile_size: 3
     max_tile_size: 12
 
-  foudations:
+  foundations:
     collumn_style :
     # proportion of each style
       none: 1
@@ -16,6 +16,7 @@ buildings:
       max_height: 7
 
   facade:
+
     windows:
       size:
         min_height: 2
@@ -39,7 +40,7 @@ buildings:
         none: 2
         top: 1
         top_and_bottom: 1
-    inter_floor: 0.5
+    
     balcony: 
       proba : 0.25
       growth: 0.5 # [growth]% chance to have min_width + 1 balcony length, [growth**2]% chance to have min_width + 2 balcony length, etc
@@ -59,4 +60,19 @@ buildings:
         none: 6
         # no difference if there is no details
         medium: 1
-        full: 1
+        full: 1
+
+    Entrance:
+      centered: 0.8
+      different_facade: 0.75
+      size:
+        min_height: 5
+        max_height: 9
+
+    inter_floor: 
+      proba: 0.5
+      border_style:
+        # bloc used to fill the corner of the interfloor
+        none: 1
+        slab: 2
+        stairs: 2