blender/io_mspgl/export_scene.py

   1 import math
   2 import os
   3
   4 class SceneExporter:
   5         def __init__(self):
   6                 self.resource_collection = True
   7
   8         def export(self, context, out_file):
   9                 objs = context.selected_objects
  10                 objs = [o for o in objs if o.type=="MESH" and (not o.compound or o.parent not in objs) and not o.lod_for_parent]
  11
  12                 from .outfile import open_output
  13                 out_file = open_output(out_file)
  14
  15                 path, base = os.path.split(out_file.filename)
  16                 base, ext = os.path.splitext(base)
  17
  18                 from .export_object import ObjectExporter
  19                 object_export = ObjectExporter()
  20
  21                 object_prototypes = {}
  22                 unique_objects = []
  23                 for o in objs:
  24                         if o.name in object_prototypes:
  25                                 continue
  26
  27                         clones = [o]
  28                         if not any(s.link=="OBJECT" for s in o.material_slots):
  29                                 for u in objs:
  30                                         if u is o:
  31                                                 continue
  32                                         if u.data.name!=o.data.name:
  33                                                 continue
  34                                         if u.technique!=o.technique:
  35                                                 continue
  36                                         if any(s.link=="OBJECT" for s in u.material_slots):
  37                                                 continue
  38
  39                                         clones.append(u)
  40
  41                         unique_objects.append(o)
  42                         for c in clones:
  43                                 object_prototypes[c.name] = o
  44
  45                 from .util import Progress
  46                 progress = Progress(context)
  47                 if self.resource_collection:
  48                         res_out = open_output(os.path.join(path, base+"_resources.mdc"))
  49
  50                         # TODO Export techniques as separate items in the collection
  51                         for i, o in enumerate(unique_objects):
  52                                 res_out.begin("object", '"{}.object"'.format(o.name))
  53                                 progress.push_task(o.name, i/len(objs), (i+1)/len(objs))
  54                                 object_export.export(context, res_out, o, progress)
  55                                 progress.pop_task()
  56                                 res_out.end()
  57                 else:
  58                         object_export.separate_mesh = True
  59                         object_export.separate_tech = True
  60                         res_dir = os.path.join(path, base+"_resources")
  61                         if not os.path.exists(res_dir):
  62                                 os.makedirs(res_dir)
  63                         for i, o in enumerate(unique_objects):
  64                                 obj_out = open_output(os.path.join(res_dir, o.name+".object"))
  65                                 progress.push_task(o.name, i/len(objs), (i+1)/len(objs))
  66                                 object_export.export(context, obj_out, o, progress)
  67                                 progress.pop_task()
  68
  69                 for o in objs:
  70                         out_file.begin("object", '"{}.object"'.format(object_prototypes[o.name].name))
  71                         # XXX Parent relationships screw up the location and rotation
  72                         out_file.write("position", o.location[0], o.location[1], o.location[2])
  73                         if o.rotation_mode=="AXIS_ANGLE":
  74                                 angle = o.rotation_axis_angle[0]
  75                                 axis = o.rotation_axis_angle[1:]
  76                         else:
  77                                 if o.rotation_mode=="QUATERNION":
  78                                         q = o.rotation_quaternion
  79                                 else:
  80                                         q = o.rotation_euler.to_quaternion()
  81                                 angle = q.angle
  82                                 axis = q.axis
  83                         out_file.write("rotation", angle*180/math.pi, axis[0], axis[1], axis[2])
  84                         out_file.write("scale", o.scale[0], o.scale[1], o.scale[2])
  85                         out_file.end();