Refactor some parts of the Blender exporter to improve reusability

[libs/gl.git] / blender / io_mspgl / export_object.py

diff --git a/blender/io_mspgl/export_object.py b/blender/io_mspgl/export_object.py
index 32894f7ebc1041d5555ca244d7d93a817381d2b5..b39307c8704fd78a74864a4e012ddda990ca44c3 100644 (file)
--- a/blender/io_mspgl/export_object.py
+++ b/blender/io_mspgl/export_object.py
@@ -2,19 +2,6 @@ import os
 import mathutils
 
 class ObjectExporter:
-       def compute_bounding_sphere(self, obj):
-               p1 = max(((v.co, v.co.length) for v in obj.data.vertices), key=lambda x:x[1])[0]
-               p2 = max(((v.co, (v.co-p1).length) for v in obj.data.vertices), key=lambda x:x[1])[0]
-               center = (p1+p2)/2
-               radius = (p1-p2).length/2
-               for v in obj.data.vertices:
-                       d = v.co-center
-                       if d.length>radius:
-                               center += d*(1-radius/d.length)/2
-                               radius = (radius+d.length)/2
-
-               return center, radius
-
        def collect_object_lods(self, obj):
                lods = [obj]
                lods += sorted([c for c in obj.children if c.lod_for_parent], key=(lambda l: l.lod_index))
@@ -24,32 +11,19 @@ class ObjectExporter:
 
                return lods
 
-       def create_mesh_exporter(self):
-               from .export_mesh import MeshExporter
-               mesh_export = MeshExporter()
-               return mesh_export
-
-       def create_material_exporter(self):
-               from .export_material import MaterialExporter
-               material_export = MaterialExporter()
-               return material_export
-
-       def create_material_atlas_exporter(self):
-               from .export_material import MaterialAtlasExporter
-               material_atlas_export = MaterialAtlasExporter()
-               return material_atlas_export
-
        def export_object_resources(self, context, obj, resources, material_atlases, progress):
                if material_atlases is None:
                        material_atlases = {}
 
                lods = self.collect_object_lods(obj)
 
+               from .export_mesh import MeshExporter
+               from .export_material import MaterialAtlasExporter, MaterialExporter
                from .mesh import create_mesh_from_object
-               from .material import create_material_atlas
-               mesh_export = self.create_mesh_exporter()
-               material_export = self.create_material_exporter()
-               material_atlas_export = self.create_material_atlas_exporter()
+               from .material import Material, create_material_atlas
+               mesh_export = MeshExporter()
+               material_export = MaterialExporter()
+               material_atlas_export = MaterialAtlasExporter()
 
                for i, l in enumerate(lods):
                        lod_index = l.lod_index if l.lod_for_parent else 0
@@ -79,6 +53,7 @@ class ObjectExporter:
                                if material.render_mode!='EXTERNAL':
                                        tech_name = material.name+".tech"
                                        if tech_name not in resources:
+                                               material = Material(material)
                                                material_export.export_technique_resources(material, resources)
                                                resources[tech_name] = material_export.export_technique(material, resources)
                        elif "stub.tech" not in resources:
@@ -102,7 +77,8 @@ class ObjectExporter:
                obj_res = Resource(obj.name+".object", "object")
                statements = obj_res.statements
 
-               center, radius = self.compute_bounding_sphere(obj)
+               from .util import compute_bounding_sphere
+               center, radius = compute_bounding_sphere([v.co for v in obj.data.vertices])
                statements.append(Statement("bounding_sphere_hint", *center, radius))
 
                prev_mesh = None
@@ -148,11 +124,11 @@ class ObjectExporter:
                return obj_res
 
        def export_stub_technique(self):
-               from .datafile import Resource, Statement
+               from .datafile import Resource, Statement, Token
                tech_res = Resource("stub.tech", "technique")
                pass_st = Statement("method", "")
                tech_res.statements.append(pass_st)
                mat_st = Statement("material")
                pass_st.sub.append(mat_st)
-               mat_st.sub.append(Statement("basic"))
+               mat_st.sub.append(Statement("type", Token("basic")))
                return tech_res