Add helper script
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import bpy
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from bpy.props import IntProperty, StringProperty, PointerProperty, BoolProperty
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from bpy.types import PropertyGroup
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from bpy.app.handlers import persistent
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bl_info = {
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"name": "3Dcam engine custom properties helper",
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"author": "Schnappy",
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"blender": (2,79,0),
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"category": "Property helper",
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"version": (0,0,1),
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"location": "3D view > Object",
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"location": "Properties panel > Data",
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"description": "Set/Unset/Copy flags easily"
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}
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# Based on https://blog.hamaluik.ca/posts/dynamic-blender-properties by Kenton Hamaluik
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bpy.propertyGroupLayouts = {
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"Flags": [
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{ "name": "isAnim", "type": "boolean" },
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{ "name": "isProp", "type": "boolean" },
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{ "name": "isRigidBody", "type": "boolean" },
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{ "name": "isStaticBody","type": "boolean" },
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{ "name": "isRound", "type": "boolean" },
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{ "name": "isPrism", "type": "boolean" },
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{ "name": "isActor", "type": "boolean" },
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{ "name": "isLevel", "type": "boolean" },
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{ "name": "isWall", "type": "boolean" },
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{ "name": "isBG", "type": "boolean" },
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{ "name": "isSprite", "type": "boolean" },
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{ "name": "isLerp", "type": "boolean" }
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],
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"Others": [
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{ "name": "mass", "type": "int" }
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]
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}
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# store keymaps here to access after registration
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addon_keymaps = []
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bpy.samplePropertyGroups = {}
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last_selection = []
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store_att_names = []
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def getActiveObjProps(active_obj):
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object_custom_props = [prop for prop in store_att_names if prop in active_obj.data]
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return object_custom_props
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def menu_func(self, context):
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self.layout.operator(copyCustomPropToSelection.bl_idname)
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def copyCustomProps(context):
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# get active object
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active_obj = bpy.context.active_object
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# get active object's custom properties
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active_obj_custom_props = getActiveObjProps(active_obj)
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# get selected objects
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selection = bpy.context.selected_objects
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# discriminates against active_obj
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selection = [obj for obj in selection if obj != active_obj]
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# for each object that's not active object, add custom prop
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for obj in selection:
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for prop in active_obj_custom_props:
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obj.data[prop] = active_obj.data[prop]
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def updateCustomProps(self, context):
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global last_selection
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global store_att_names
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for att in store_att_names:
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if (att in last_selection.Flags): # and last_selection.Flags[att] :
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if ( att not in last_selection.data or
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last_selection.Flags[att] != last_selection.data[att] ):
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last_selection.data[att] = last_selection.Flags[att]
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if (att in last_selection.Others):
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if ( att not in last_selection.data or
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last_selection.Others[att] != last_selection.data[att] ):
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last_selection.data[att] = last_selection.Others[att]
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@persistent
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def selection_callback(scene):
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global last_selection
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global store_att_names
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print("1 " + str(last_selection))
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print("2 " + str(bpy.context.active_object))
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if bpy.context.active_object != last_selection:
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last_selection = bpy.context.active_object
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for groupName, attributeDefinitions in bpy.propertyGroupLayouts.items():
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# build the attribute dictionary for this group
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attributes = {}
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for attributeDefinition in attributeDefinitions:
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attType = attributeDefinition['type']
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attName = attributeDefinition['name']
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store_att_names.append(attName)
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value = 0
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if last_selection:
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if attName in last_selection.data:
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value = last_selection.data[attName]
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if attType == 'boolean':
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print(attName + ":" + str(value))
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attributes[attName] = BoolProperty(name=attName, default=value, update=updateCustomProps )
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elif attType == 'int':
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attributes[attName] = IntProperty(name=attName, default=value, update=updateCustomProps)
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elif attType == 'string':
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attributes[attName] = StringProperty(name=attName, default=value, update=updateCustomProps)
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else:
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raise TypeError('Unsupported type (%s) for %s on %s!' % (attType, attName, groupName))
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# now build the property group class
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propertyGroupClass = type(groupName, (PropertyGroup,), attributes)
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# register it with Blender
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bpy.utils.register_class(propertyGroupClass)
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# apply it to all Objects
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setattr(bpy.types.Object, groupName, PointerProperty(type=propertyGroupClass))
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# store it for later
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bpy.samplePropertyGroups[groupName] = propertyGroupClass
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class copyCustomPropToSelection(bpy.types.Operator):
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"""Copy last selected object's custom properties to other selected objects"""
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bl_idname = "object.copy_custom_properties"
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bl_label = "Copy custom properties to selection"
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@classmethod
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def poll(cls, context):
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return context.active_object is not None
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def execute(self, context):
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copyCustomProps(context)
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return {'FINISHED'}
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class customPropsPanel(bpy.types.Panel):
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bl_label = "3D Cam engine custom properties"
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bl_space_type = 'PROPERTIES'
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bl_region_type = 'WINDOW'
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bl_context = "data"
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def draw(self, context):
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layout = self.layout
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obj = context.object
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# use our layout definition to dynamically create our panel items
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for groupName, attributeDefinitions in sorted(bpy.propertyGroupLayouts.items()):
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# get the instance of our group
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# dynamic equivalent of `obj.samplePropertyGroup` from before
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propertyGroup = getattr(obj, groupName)
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# start laying this group out
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col = layout.column_flow(columns=2)
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col.label(groupName)
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i = 0
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# loop through all the attributes and show them
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for attributeDefinition in attributeDefinitions:
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if i == len(attributeDefinitions)/2:
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col.label("")
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col.prop(propertyGroup, attributeDefinition["name"])
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i += 1
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# draw a separation between groups
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layout.separator()
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def register():
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# register the panel class
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bpy.utils.register_class(customPropsPanel)
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bpy.app.handlers.scene_update_post.clear()
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bpy.app.handlers.scene_update_post.append(selection_callback)
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# copy helper
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bpy.utils.register_class(copyCustomPropToSelection)
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bpy.types.VIEW3D_MT_object.append(menu_func)
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# shortcut
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wm = bpy.context.window_manager
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km = wm.keyconfigs.addon.keymaps.new(name='Object Mode', space_type='EMPTY')
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kmi = km.keymap_items.new(copyCustomPropToSelection.bl_idname, 'P', 'PRESS', ctrl=False, shift=True)
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# ~ kmi.properties.total = 4
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addon_keymaps.append((km, kmi))
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def unregister():
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# unregister the panel class
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bpy.utils.unregister_class(customPropsPanel)
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# unregister our components
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try:
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for key, value in bpy.samplePropertyGroups.items():
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delattr(bpy.types.Object, key)
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bpy.utils.unregister_class(value)
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except UnboundLocalError:
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pass
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bpy.samplePropertyGroups = {}
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# copy helper
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bpy.utils.unregister_class(copyCustomPropToSelection)
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bpy.types.VIEW3D_MT_object.remove(menu_func)
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# handle the keymap
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for km, kmi in addon_keymaps:
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km.keymap_items.remove(kmi)
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addon_keymaps.clear()
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if __name__ == "__main__":
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register()
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10
README.md
10
README.md
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@ -67,9 +67,15 @@ Following [those steps](https://github.com/ABelliqueux/3dcam-headers#compiling),
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# Custom properties helper add-on
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A [small blender addon](https://github.com/ABelliqueux/blender_io_export_psx_mesh/blob/main/copy_custom_prop.py) is provided that facilitates copying [flags](https://github.com/ABelliqueux/blender_io_export_psx_mesh/wiki/Flags) between several objects in your scene.
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## 3dcam-helper
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Once enabled, first select the objects you want to copy the flags to, then the object that has the flags you want copied, then access the functionality via the `Object` menu in the 3D viewport, or use the `Shift+P` keyboard shortcut.
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A [small blender addon](https://github.com/ABelliqueux/blender_io_export_psx_mesh/blob/main/3dcam-engine-helper.py) is provided that facilitates setting and copying [flags](https://github.com/ABelliqueux/blender_io_export_psx_mesh/wiki/Flags) between several objects in your scene.
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See [the documentation](https://github.com/ABelliqueux/blender_io_export_psx_mesh/wiki/Flags#3dcam-helper) for usage instruction.
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**The script only does the job of creating/updating the object's custom properties, so it is not mandatory to use it.**
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# Credits
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@ -1,85 +0,0 @@
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import bpy
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bl_info = {
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"name": "Copy custom properties",
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"author": "Schnappy",
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"blender": (2,79,0),
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"category": "Property helper",
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"version": (0,0,1),
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"location": "3D view > Object",
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"description": "Copy custom property from last selected object to other objects in selection"
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}
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# store keymaps here to access after registration
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addon_keymaps = []
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custom_props = [ 'isAnim',
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'isProp',
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'isRigidBody',
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'isStaticBody',
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'isRound',
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'isPrism',
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'isActor',
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'isLevel',
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'isWall',
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'isBG',
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'isSprite',
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'mass',
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'restitution',
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'lerp'
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]
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def getActiveObjProps(active_obj):
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object_custom_props = [prop for prop in custom_props if prop in active_obj.data]
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return object_custom_props
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def main(context):
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# get active object
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active_obj = bpy.context.active_object
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# get active object's custom properties
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active_obj_custom_props = getActiveObjProps(active_obj)
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# get selected objects
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selection = bpy.context.selected_objects
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# discriminates against active_obj
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selection = [obj for obj in selection if obj != active_obj]
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# for each object that's not active object, add custom prop
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for obj in selection:
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for prop in active_obj_custom_props:
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obj.data[prop] = active_obj.data[prop]
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class copyCustomPropToSelection(bpy.types.Operator):
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"""Copy last selected object's custom properties to other selected objects"""
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bl_idname = "object.copy_custom_properties"
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bl_label = "Copy custom properties to selection"
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@classmethod
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def poll(cls, context):
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return context.active_object is not None
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def execute(self, context):
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main(context)
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return {'FINISHED'}
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def menu_func(self, context):
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self.layout.operator(copyCustomPropToSelection.bl_idname)
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def register():
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bpy.utils.register_class(copyCustomPropToSelection)
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bpy.types.VIEW3D_MT_object.append(menu_func)
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# shortcut
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wm = bpy.context.window_manager
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km = wm.keyconfigs.addon.keymaps.new(name='Object Mode', space_type='EMPTY')
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kmi = km.keymap_items.new(copyCustomPropToSelection.bl_idname, 'P', 'PRESS', ctrl=False, shift=True)
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# ~ kmi.properties.total = 4
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addon_keymaps.append((km, kmi))
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def unregister():
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bpy.utils.unregister_class(copyCustomPropToSelection)
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bpy.types.VIEW3D_MT_object.remove(menu_func)
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# handle the keymap
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for km, kmi in addon_keymaps:
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km.keymap_items.remove(kmi)
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addon_keymaps.clear()
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if __name__ == "__main__":
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register()
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