Use COMPAT_ENGINES instead of RenderEngine.use_game_engine for panel poll methods

This mostly affects physics panels. Any engines relying on
RenderEngine.use_game_engine flag to show/hide panels will need to be
updated. The COMPAT_ENGINES technique is how we usually deal with this.
One issue with use_game_engine is that I cannot find a way to set it; it
appears only the BGE can set it. This means (without this commit)
external RenderEngines cannot get rid of the default physics panels.

The RE_GAME flag (the C flag behind use_game_engine) is pretty hacky
and we should look into removing its usage where possible.

1 files changed, 7 insertions, 1 deletions

diff --git a/release/scripts/startup/bl_ui/properties_physics_cloth.py b/release/scripts/startup/bl_ui/properties_physics_cloth.py
index a5cbffb2e2c..2f1798ebd54 100644
--- a/release/scripts/startup/bl_ui/properties_physics_cloth.py
+++ b/release/scripts/startup/bl_ui/properties_physics_cloth.py
@@ -46,11 +46,12 @@ class PhysicButtonsPanel:
     def poll(cls, context):
         ob = context.object
         rd = context.scene.render
-        return (ob and ob.type == 'MESH') and (not rd.use_game_engine) and (context.cloth)
+        return (ob and ob.type == 'MESH') and (rd.engine in cls.COMPAT_ENGINES) and (context.cloth)
 
 
 class PHYSICS_PT_cloth(PhysicButtonsPanel, Panel):
     bl_label = "Cloth"
+    COMPAT_ENGINES = {'BLENDER_RENDER'}
 
     def draw(self, context):
         layout = self.layout
@@ -113,6 +114,7 @@ class PHYSICS_PT_cloth(PhysicButtonsPanel, Panel):
 class PHYSICS_PT_cloth_cache(PhysicButtonsPanel, Panel):
     bl_label = "Cloth Cache"
     bl_options = {'DEFAULT_CLOSED'}
+    COMPAT_ENGINES = {'BLENDER_RENDER'}
 
     def draw(self, context):
         md = context.cloth
@@ -122,6 +124,7 @@ class PHYSICS_PT_cloth_cache(PhysicButtonsPanel, Panel):
 class PHYSICS_PT_cloth_collision(PhysicButtonsPanel, Panel):
     bl_label = "Cloth Collision"
     bl_options = {'DEFAULT_CLOSED'}
+    COMPAT_ENGINES = {'BLENDER_RENDER'}
 
     def draw_header(self, context):
         cloth = context.cloth.collision_settings
@@ -161,6 +164,7 @@ class PHYSICS_PT_cloth_collision(PhysicButtonsPanel, Panel):
 class PHYSICS_PT_cloth_stiffness(PhysicButtonsPanel, Panel):
     bl_label = "Cloth Stiffness Scaling"
     bl_options = {'DEFAULT_CLOSED'}
+    COMPAT_ENGINES = {'BLENDER_RENDER'}
 
     def draw_header(self, context):
         cloth = context.cloth.settings
@@ -193,6 +197,7 @@ class PHYSICS_PT_cloth_stiffness(PhysicButtonsPanel, Panel):
 class PHYSICS_PT_cloth_sewing(PhysicButtonsPanel, Panel):
     bl_label = "Cloth Sewing Springs"
     bl_options = {'DEFAULT_CLOSED'}
+    COMPAT_ENGINES = {'BLENDER_RENDER'}
 
     def draw_header(self, context):
         cloth = context.cloth.settings
@@ -226,6 +231,7 @@ class PHYSICS_PT_cloth_sewing(PhysicButtonsPanel, Panel):
 class PHYSICS_PT_cloth_field_weights(PhysicButtonsPanel, Panel):
     bl_label = "Cloth Field Weights"
     bl_options = {'DEFAULT_CLOSED'}
+    COMPAT_ENGINES = {'BLENDER_RENDER'}
 
     def draw(self, context):
         cloth = context.cloth.settings