Merge branch 'main' into PoseMode

functions/armature_modifying.py

@@ -1,9 +1,10 @@
 import bpy
 from ..core.register import register_wrap
 from ..ui.panel import AvatarToolkitPanel
-from bpy.types import Context, Mesh, Panel, Operator
+from bpy.types import Context, Mesh, Panel, Operator, Armature, EditBone
 from ..functions.translations import t
 from ..core.common import get_selected_armature, get_all_meshes
+from ..core import common
 
 @register_wrap
 class AvatarToolkit_OT_StartPoseMode(Operator):
@@ -188,3 +189,156 @@ class AvatarToolkit_OT_ApplyPoseAsRest(Operator):
             bpy.ops.pose.armature_apply(selected=False)
 
         return {'FINISHED'}
+
+@register_wrap
+class AvatarToolkit_OT_RemoveZeroWeightBones(Operator):
+    bl_idname = "avatar_toolkit.remove_zero_weight_bones"
+    bl_label = t("Tools.remove_zero_weight_bones.label")
+    bl_description = t("Tools.remove_zero_weight_bones.desc")
+    bl_options = {'REGISTER', 'UNDO'}
+
+    threshold: bpy.props.FloatProperty(
+        default=0.01,
+        name=t("Tools.remove_zero_weight_bones.threshold.label"),
+        description=t("Tools.remove_zero_weight_bones.threshold.desc"),
+        min=0.0000001, 
+        max=0.9999999)
+
+    @classmethod
+    def poll(cls, context: Context) -> bool:
+        return common.get_selected_armature(context) is not None
+
+    def execute(self, context: Context) -> set[str]:
+        armature = common.get_selected_armature(context)
+        if not common.is_valid_armature(armature):
+            self.report({'ERROR'}, t("Tools.apply_transforms.invalid_armature"))
+            return {'CANCELLED'}
+
+        weighted_bones: list[str] = []
+
+
+        bpy.ops.object.mode_set(mode='OBJECT')
+        bpy.ops.object.select_all(action='DESELECT')
+
+        armature.select_set(True)
+        context.view_layer.objects.active = armature
+
+        meshes = common.get_all_meshes(context)
+        for mesh in meshes:
+            mesh_data: Mesh = mesh.data
+            for vertex in mesh_data.vertices:
+                for group in vertex.groups:
+                    if group.weight > self.threshold: 
+                        weighted_bones.append(mesh.vertex_groups[group.group].name) #add bone name to list of bones that are greater than the weight threshold
+        
+        bpy.ops.object.mode_set(mode='EDIT')
+        amature_data: Armature = armature.data
+        unweighted_bones: list[str] = []
+
+        #doing 2 loops to prevent modification of array during iteration
+        for bone in amature_data.edit_bones:
+            if bone.name not in weighted_bones:
+                unweighted_bones.append(bone.name) #add bones that arent in the list of bones that have weight into the list of bones that don't
+
+        for bone_name in unweighted_bones:
+            for edit_bone in amature_data.edit_bones[bone_name].children: 
+                edit_bone.use_connect = False #to fix randomly moving bones
+                edit_bone.parent = amature_data.edit_bones[bone_name].parent #to fix unparented bones.
+            amature_data.edit_bones.remove(amature_data.edit_bones[bone_name]) #delete list of unweighted bones from the armature
+
+        self.report({'INFO'}, t("Tools.remove_zero_weight_bones.success"))
+        return {'FINISHED'}
+
+@register_wrap
+class AvatarToolkit_OT_MergeBonesToActive(Operator):
+    bl_idname = "avatar_toolkit.merge_bones_to_active"
+    bl_label = t("Tools.merge_bones_to_active.label")
+    bl_description = t("Tools.merge_bones_to_active.desc")
+    bl_options = {'REGISTER', 'UNDO'}
+
+    delete_old: bpy.props.BoolProperty(name=t("Tools.merge_bones_to_active.delete_old.label"), description=t("Tools.merge_bones_to_active.delete_old.desc"), default=False)
+
+    @classmethod
+    def poll(cls, context: Context) -> bool:
+        if common.get_selected_armature(context) is not None:
+            if common.get_selected_armature(context) == context.view_layer.objects.active:
+                if context.mode == "POSE":
+                    return len(context.selected_pose_bones) > 1
+                elif context.mode == "EDIT_ARMATURE":
+                    return len(context.selected_bones) > 1
+        return False
+
+    def execute(cls, context: Context) -> set[str]:
+        
+        prev_mode: str = "EDIT"
+        if context.mode == "POSE":
+            prev_mode = "POSE"
+
+        #get active bone and a list of all other selected bones
+        bpy.ops.object.mode_set(mode='EDIT')
+        target_bone: str = context.active_bone.name
+
+        armature_data: Armature = context.view_layer.objects.active.data
+
+
+        bones: list[str] = [i.name for i in context.selected_bones]
+        bones.remove(target_bone)
+
+        for obj in common.get_all_meshes(context):
+            for bone in bones:
+                bone_name: str = armature_data.edit_bones[bone].name
+                common.transfer_vertex_weights(context=context,obj=obj,source_group=bone_name,target_group=armature_data.edit_bones[target_bone].name)
+                bpy.ops.object.mode_set(mode='EDIT')
+        for bone in bones:   
+            if cls.delete_old:
+                for bone_child in armature_data.edit_bones[bone].children:
+                    bone_child.parent = armature_data.edit_bones[bone].parent
+                armature_data.edit_bones.remove(armature_data.edit_bones[bone])
+        
+        bpy.ops.object.mode_set(mode=prev_mode)
+        return {'FINISHED'}
+    
+@register_wrap
+class AvatarToolkit_OT_MergeBonesToParents(Operator):
+    bl_idname = "avatar_toolkit.merge_bones_to_parents"
+    bl_label = t("Tools.merge_bones_to_parents.label")
+    bl_description = t("Tools.merge_bones_to_parents.desc")
+    bl_options = {'REGISTER', 'UNDO'}
+
+    delete_old: bpy.props.BoolProperty(name=t("Tools.merge_bones_to_parents.delete_old.label"), description=t("Tools.merge_bones_to_parents.delete_old.desc"), default=False)
+
+    @classmethod
+    def poll(cls, context: Context) -> bool:
+        if common.get_selected_armature(context) is not None:
+            if common.get_selected_armature(context) == context.view_layer.objects.active:
+                if context.mode == "POSE":
+                    return len(context.selected_pose_bones) > 0
+                elif context.mode == "EDIT_ARMATURE":
+                    return len(context.selected_bones) > 0
+        return False
+
+    def execute(cls, context: Context) -> set[str]:
+
+        prev_mode: str = "EDIT"
+        if context.mode == "POSE":
+            prev_mode = "POSE"
+        #get active bone and a list of all other selected bones
+        bpy.ops.object.mode_set(mode='EDIT')
+        armature_data: Armature = context.view_layer.objects.active.data
+
+        for obj in common.get_all_meshes(context):
+            for bone in [i.name for i in context.selected_bones]:
+                if armature_data.edit_bones[bone].parent != None:
+                    bone_name: str = armature_data.edit_bones[bone].name
+                    common.transfer_vertex_weights(context=context,obj=obj,source_group=bone_name,target_group=armature_data.edit_bones[bone].parent.name)
+                    bpy.ops.object.mode_set(mode='EDIT')
+        
+        for bone in [i.name for i in context.selected_bones]:   
+            if cls.delete_old:
+                for bone_child in armature_data.edit_bones[bone].children:
+                    bone_child.parent = armature_data.edit_bones[bone].parent
+                armature_data.edit_bones.remove(armature_data.edit_bones[bone])
+        
+        
+        bpy.ops.object.mode_set(mode=prev_mode)
+        return {'FINISHED'}