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                 self.show_progress = True
   8
   9         def export_to_file(self, context, out_fn):
  10                 objs = [o for o in context.selected_objects if o.type=="MESH" and not o.lod_for_parent]
  11                 objs = [o for o in objs if (not o.compound or o.parent not in objs)]
  12
  13                 path, base = os.path.split(out_fn)
  14                 base, ext = os.path.splitext(base)
  15
  16                 from .export_object import ObjectExporter
  17                 object_export = ObjectExporter()
  18
  19                 object_prototypes = {}
  20                 unique_objects = []
  21                 for o in objs:
  22                         if o.name in object_prototypes:
  23                                 continue
  24
  25                         clones = [o]
  26                         if not any(s.link=="OBJECT" for s in o.material_slots):
  27                                 for u in objs:
  28                                         if u is o:
  29                                                 continue
  30                                         if u.data.name!=o.data.name:
  31                                                 continue
  32                                         if u.technique!=o.technique:
  33                                                 continue
  34                                         if any(s.link=="OBJECT" for s in u.material_slots):
  35                                                 continue
  36
  37                                         clones.append(u)
  38
  39                         unique_objects.append(o)
  40                         for c in clones:
  41                                 object_prototypes[c.name] = o
  42
  43                 from .util import Progress
  44                 progress = Progress(self.show_progress and context)
  45
  46                 from .export_object import ObjectExporter
  47                 object_export = ObjectExporter()
  48
  49                 from .datafile import Statement
  50                 if self.resource_collection:
  51                         with open(os.path.join(path, base+"_resources.mdc"), "w") as res_out:
  52                                 for i, o in enumerate(unique_objects):
  53                                         progress.push_task_slice(o.name, i, len(unique_objects))
  54                                         st = Statement("object", "{}.object".format(o.name))
  55                                         st.sub = object_export.export_object(context, o, progress)
  56                                         st.write_to_file(res_out)
  57                                         progress.pop_task()
  58                 else:
  59                         res_dir = os.path.join(path, base+"_resources")
  60                         if not os.path.exists(res_dir):
  61                                 os.makedirs(res_dir)
  62                         for i, o in enumerate(unique_objects):
  63                                 progress.push_task_slice(o.name, i, len(unique_objects))
  64                                 st = object_export.export_object(context, o, progress)
  65                                 with open(os.path.join(res_dir, o.name+".object"), "w") as obj_out:
  66                                         for s in st:
  67                                                 s.write_to_file(obj_out)
  68                                 progress.pop_task()
  69
  70                 statements = self.export_scene(context, objs, progress, prototypes=object_prototypes)
  71
  72                 with open(out_fn, "w") as out_file:
  73                         for s in statements:
  74                                 s.write_to_file(out_file)
  75
  76         def export_scene(self, context, objs, progress, *, prototypes=None):
  77                 from .datafile import Statement
  78                 statements = []
  79
  80                 for o in objs:
  81                         st = Statement("object", "{}.object".format(prototypes[o.name].name))
  82                         # XXX Parent relationships screw up the location and rotation
  83                         st.sub.append(Statement("position", o.location[0], o.location[1], o.location[2]))
  84                         if o.rotation_mode=="AXIS_ANGLE":
  85                                 angle = o.rotation_axis_angle[0]
  86                                 axis = o.rotation_axis_angle[1:]
  87                         else:
  88                                 if o.rotation_mode=="QUATERNION":
  89                                         q = o.rotation_quaternion
  90                                 else:
  91                                         q = o.rotation_euler.to_quaternion()
  92                                 angle = q.angle
  93                                 axis = q.axis
  94                         st.sub.append(Statement("rotation", angle*180/math.pi, axis[0], axis[1], axis[2]))
  95                         st.sub.append(Statement("scale", o.scale[0], o.scale[1], o.scale[2]))
  96                         statements.append(st)
  97
  98                 progress.set_progress(1.0)
  99
 100                 return statements