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#
# Script for exporting Blender models (meshes) to Colobot model files
# (text format)
#
# Copyright (C) 2012, PPC (Polish Portal of Colobot)
#
import bpy
import struct
import array
class ExportColobot(bpy.types.Operator):
"""Exporter to Colobot text format"""
bl_idname = "export.colobot"
bl_label = "Export to Colobot"
# Version of format
FORMAT_VERSION = 1
# TODO: set the following in some user-friendly way
# or better, read them from custom, per-polygon data
# For now, you must make any changes here, as appropriate
# Render state
STATE = 0
# Min & max LOD
MIN = 0.0
MAX = 0.0
# Variable tex2
VAR_TEX2 = False
filepath = bpy.props.StringProperty(subtype="FILE_PATH")
@classmethod
def poll(cls, context):
return context.object is not None
def execute(self, context):
self.write(context.object, context.scene)
return {'FINISHED'}
def invoke(self, context, event):
context.window_manager.fileselect_add(self)
return {'RUNNING_MODAL'}
def write(self, object, scene):
if (object.type != 'MESH'):
self.report({'ERROR'}, 'Only mesh objects can be exported!')
return
for poly in object.data.polygons:
if (poly.loop_total > 3):
self.report({'ERROR'}, 'Cannot export polygons with > 3 vertices!')
return
file = open(self.filepath, 'w')
file.write('# Colobot text model\n')
file.write('\n')
triangleCount = len(object.data.polygons) * 3
file.write('### HEAD\n')
file.write('version ' + str(ExportColobot.FORMAT_VERSION) + '\n')
file.write('total_triangles ' + str(triangleCount) + '\n')
file.write('\n')
file.write('### TRIANGLES\n')
for poly in object.data.polygons:
i = 0
for loop_index in poly.loop_indices:
v = object.data.vertices[object.data.loops[loop_index].vertex_index]
i = i + 1
file.write('p' + str(i))
file.write(' c ' + str(v.co[0]) + ' ' + str(v.co[1]) + ' ' + str(v.co[2]))
file.write(' n ' + str(v.normal[0]) + ' ' + str(v.normal[1]) + ' ' + str(v.normal[2]))
uv1 = array.array('f', [0.0, 0.0])
uv2 = array.array('f', [0.0, 0.0])
if (len(object.data.uv_layers) >= 1):
uv1 = object.data.uv_layers[0].data[loop_index].uv
if (len(object.data.uv_layers) >= 2):
uv2 = object.data.uv_layers[1].data[loop_index].uv
file.write(' t1 ' + str(uv1[0]) + ' ' + str(uv1[1]))
file.write(' t2 ' + str(uv2[0]) + ' ' + str(uv2[1]))
file.write('\n')
mat = object.data.materials[poly.material_index]
file.write('mat')
file.write(' dif ' + str(mat.diffuse_color[0]) + ' ' + str(mat.diffuse_color[1]) + ' ' + str(mat.diffuse_color[2]))
amb = scene.world.ambient_color * mat.ambient
file.write(' amb ' + str(amb[0]) + ' ' + str(amb[1]) + ' ' + str(amb[2]))
file.write(' spc ' + str(mat.specular_color[0]) + ' ' + str(mat.specular_color[1]) + ' ' + str(mat.specular_color[2]))
file.write('\n')
tex1 = ''
tex2 = ''
if (len(object.data.uv_textures) >= 1):
tex1 = bpy.path.basename(object.data.uv_textures[0].data[0].image.filepath)
if (len(object.data.uv_textures) >= 2):
tex2 = bpy.path.basename(object.data.uv_textures[1].data[0].image.filepath)
file.write('tex1 ' + tex1 + '\n')
file.write('tex2 ' + tex2 + '\n')
file.write('var_tex2 ' + 'Y' if ExportColobot.VAR_TEX2 else 'N' + '\n')
file.write('min ' + str(ExportColobot.MIN) + '\n')
file.write('max ' + str(ExportColobot.MAX) + '\n')
file.write('state ' + str(ExportColobot.STATE) + '\n')
file.write('\n')
file.close()
self.report({'INFO'}, 'Export OK')
# For menu item
def menu_func(self, context):
self.layout.operator_context = 'INVOKE_DEFAULT'
self.layout.operator(ExportColobot.bl_idname, text="Colobot (Text Format)")
# Register and add to the file selector
bpy.utils.register_class(ExportColobot)
bpy.types.INFO_MT_file_export.append(menu_func)
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