BGE: TexFace panel (from patch #21780 from Mitchell Stokes + some changes)

the patch exposes a rna property to get the active edit mode face. This is a hack.
However it's a small patch (a.k.a. easy to revert later if needed).

The official plan is to wait for BMesh before tackling it properly. Nevertheless TexFace panel is really important for BGE.

Missing: operators to copy the current parameters to other selected faces.

* note: what I changed from the original patch is the UI script. The pool wasn't defined and it was using tabs.

release/scripts/ui/properties_data_mesh.py

@@ -281,6 +281,52 @@ class DATA_PT_uv_texture(DataButtonsPanel):
         lay = me.active_uv_texture
         if lay:
             layout.prop(lay, "name")
+            
+class DATA_PT_texface(DataButtonsPanel):
+    bl_label = "Texture Face"
+
+    def poll(self, context):
+        ob = context.active_object
+        rd = context.scene.render
+        
+        return (context.mode =='EDIT_MESH') and (rd.engine == 'BLENDER_GAME') \
+        and ob and ob.type in ('MESH')
+
+    def draw(self, context):
+        layout = self.layout
+        col = layout.column()
+        
+        wide_ui = context.region.width > narrowui       
+        me = context.mesh
+        
+        tf = me.faces.active_tface
+        
+        if tf:
+            split = layout.split()
+            col = split.column()
+            
+            col.prop(tf, "tex")
+            col.prop(tf, "light")
+            col.prop(tf, "invisible")
+            col.prop(tf, "collision")
+            
+            col.prop(tf, "shared")
+            col.prop(tf, "twoside")
+            col.prop(tf, "object_color")
+            
+            if wide_ui:
+                col = split.column()
+            
+            col.prop(tf, "halo")
+            col.prop(tf, "billboard")
+            col.prop(tf, "shadow")
+            col.prop(tf, "text")
+            col.prop(tf, "alpha_sort")
+            
+            col = layout.column()
+            col.prop(tf, "transp")
+        else:
+            col.label(text="No UV Texture")
 
 
 class DATA_PT_vertex_colors(DataButtonsPanel):
@@ -315,6 +361,7 @@ classes = [
     DATA_PT_vertex_groups,
     DATA_PT_shape_keys,
     DATA_PT_uv_texture,
+    DATA_PT_texface,
     DATA_PT_vertex_colors,
 
     DATA_PT_custom_props_mesh]