170 lines
4.6 KiB
Python
170 lines
4.6 KiB
Python
# Copyright (C) 2021 MMaker <mmaker@mmaker.moe>
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#
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# This file is part of FCurveHandleCopy.
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#
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# FCurveHandleCopy is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# FCurveHandleCopy is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with FCurveHandleCopy. If not, see <http://www.gnu.org/licenses/>.
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bl_info = {
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"name" : "FCurveHandleCopy",
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"author" : "MMaker",
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"description" : "",
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"blender" : (2, 83, 0),
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"version" : (0, 0, 1),
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"location" : "",
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"warning" : "",
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"category" : "Animation"
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}
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"""
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if "bpy" in locals():
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import importlib
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importlib.reload(ui)
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else:
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from . import ui
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"""
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import bpy
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import mathutils
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class G:
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pass
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def convert_handles_to_bezier(keyframes):
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bezier = []
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in_key = keyframes[0]
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out_key = keyframes[1]
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in_handle = in_key.handle_right
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out_handle = out_key.handle_left
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bezier.append(in_handle[0] / (abs(in_key.co[0] - out_key.co[0]))) # x1
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bezier.append(in_handle[1] / (abs(in_key.co[1] - out_key.co[1]))) # y1
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bezier.append(out_handle[0] / (abs(in_key.co[0] - out_key.co[0]))) # x2
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bezier.append(out_handle[1] / (abs(in_key.co[1] - out_key.co[1]))) # y2
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return bezier
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def generate_new_handles(in_key, out_key):
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x_diff = abs(in_key.co[0] - out_key.co[0])
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y_diff = abs(in_key.co[1] - out_key.co[1])
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y_direction = (1 if (in_key.co[1] - out_key.co[1]) < 0 else -1)
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new_in_handle = mathutils.Vector((
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in_key.co[0] + (G.bezier[0] * x_diff),
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in_key.co[1] + (G.bezier[1] * y_diff * y_direction)
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))
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new_out_handle = mathutils.Vector((
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in_key.co[0] + (G.bezier[2] * x_diff),
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in_key.co[1] + (G.bezier[3] * y_diff * y_direction)
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))
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return [new_in_handle, new_out_handle]
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class FCurveHandleCopyValue(bpy.types.Operator):
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"""Copy FCurve handle values"""
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bl_idname = "anim.mmaker_fcurve_handle_copy_values"
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bl_label = "Copy"
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def execute(self, context):
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if (context.selected_visible_fcurves):
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fcurves = context.selected_visible_fcurves
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G.selected_keys = []
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if (len(fcurves) > 1):
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self.report({"WARNING"}, "Please only select one curve when copying an ease.")
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return {'CANCELLED'}
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for keyframe in fcurves[0].keyframe_points:
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if (len(G.selected_keys) > 2):
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self.report({"WARNING"}, "Please select exactly two keyframes when copying an ease.")
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return {'CANCELLED'}
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if (keyframe.select_control_point):
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G.selected_keys.append(keyframe)
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if (len(G.selected_keys) != 2):
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self.report({"WARNING"}, "Please select exactly two keyframes when copying an ease.")
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return {'CANCELLED'}
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G.bezier = convert_handles_to_bezier(G.selected_keys)
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return {'FINISHED'}
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class FCurveHandlePasteValue(bpy.types.Operator):
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"""Paste FCurve handle values"""
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bl_idname = "anim.mmaker_fcurve_handle_paste_values"
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bl_label = "Paste"
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def execute(self, context):
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if (context.selected_visible_fcurves):
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fcurves = context.selected_visible_fcurves
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for fcurve in fcurves:
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keys = fcurve.keyframe_points
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selected_keys = []
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for i in range(0, len(keys)):
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if (keys[i].select_control_point):
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selected_keys.append(i)
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if (len(selected_keys) == 0):
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self.report({"WARNING"}, "Please select some keyframes to paste an ease to.")
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return {'CANCELLED'}
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if (len(selected_keys) == 1):
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# TODO: Implement logic for this soon
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pass
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else:
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selected_keys.pop() # TODO: Related to above, implement soon
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for i in selected_keys:
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if (i < len(keys) - 1):
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new_handles = generate_new_handles(keys[i], keys[i + 1])
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keys[i].handle_right_type = 'FREE'
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keys[i + 1].handle_left_type = 'FREE'
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keys[i].handle_right = new_handles[0]
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keys[i + 1].handle_left = new_handles[1]
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return {'FINISHED'}
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def menu_func(self, context):
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self.layout.operator(FCurveHandleCopyValue.bl_idname)
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self.layout.operator(FCurveHandlePasteValue.bl_idname)
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classes = [
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FCurveHandleCopyValue,
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FCurveHandlePasteValue
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]
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def register():
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for cls in classes:
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bpy.utils.register_class(cls)
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bpy.types.GRAPH_HT_header.append(menu_func)
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def unregister():
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for cls in classes:
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bpy.utils.unregister_class(cls)
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bpy.types.GRAPH_HT_header.remove(menu_func)
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if __name__ == "__main__":
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try:
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unregister()
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except:
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import sys
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print("Error:", sys.exc_info()[0])
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pass
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register() |