115 lines
3.5 KiB
Python
115 lines
3.5 KiB
Python
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#!BPY
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"""
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Name: 'Script Constraint'
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Blender: 245
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Group: 'ScriptTemplate'
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Tooltip: 'Add a new script for custom constraints'
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"""
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from Blender import Window
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import bpy
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script_data = \
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"""#BPYCONSTRAINT
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'''
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PyConstraint template, access this in the "add constraint" scripts submenu.
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Add docstring here
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'''
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import Blender
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from Blender import Draw
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from Blender import Mathutils
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import math
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'''
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This variable specifies the number of targets
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that this constraint can use
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'''
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NUM_TARGETS = 1
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'''
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This function is called to evaluate the constraint
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obmatrix: (Matrix) copy of owner's 'ownerspace' matrix
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targetmatrices: (List) list of copies of the 'targetspace' matrices of the targets (where applicable)
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idprop: (IDProperties) wrapped data referring to this
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constraint instance's idproperties
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'''
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def doConstraint(obmatrix, targetmatrices, idprop):
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# Separate out the transformation components for easy access.
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obloc = obmatrix.translationPart() # Translation
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obrot = obmatrix.toEuler() # Rotation
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obsca = obmatrix.scalePart() # Scale
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# Define user-settable parameters
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# Must also be defined in getSettings().
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if not idprop.has_key('user_toggle'): idprop['user_toggle'] = 1
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if not idprop.has_key('user_slider'): idprop['user_slider'] = 1.0
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# Do stuff here, changing obloc, obrot, and obsca.
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# Convert back into a matrix for loc, scale, rotation,
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mtxloc = Mathutils.TranslationMatrix(obloc)
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mtxrot = obrot.toMatrix().resize4x4()
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mtxsca = Mathutils.Matrix([obsca[0],0,0,0], [0,obsca[1],0,0], [0,0,obsca[2],0], [0,0,0,1])
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# Recombine the separate elements into a transform matrix.
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outputmatrix = mtxsca * mtxrot * mtxloc
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# Return the new matrix.
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return outputmatrix
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'''
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This function manipulates the matrix of a target prior to sending it to doConstraint()
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target_object: wrapped data, representing the target object
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subtarget_bone: wrapped data, representing the subtarget pose-bone/vertex-group (where applicable)
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target_matrix: (Matrix) the transformation matrix of the target
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id_properties_of_constraint: (IDProperties) wrapped idproperties
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'''
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def doTarget(target_object, subtarget_bone, target_matrix, id_properties_of_constraint):
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return target_matrix
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'''
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This function draws a pupblock that lets the user set
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the values of custom settings the constraint defines.
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This function is called when the user presses the settings button.
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idprop: (IDProperties) wrapped data referring to this
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constraint instance's idproperties
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'''
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def getSettings(idprop):
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# Define user-settable parameters.
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# Must also be defined in getSettings().
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if not idprop.has_key('user_toggle'): idprop['user_toggle'] = 1
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if not idprop.has_key('user_slider'): idprop['user_slider'] = 1.0
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# create temporary vars for interface
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utoggle = Draw.Create(idprop['user_toggle'])
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uslider = Draw.Create(idprop['user_slider'])
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# define and draw pupblock
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block = []
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block.append("Buttons: ")
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block.append(("Toggle", utoggle, "This is a toggle button."))
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block.append("More buttons: ")
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block.append(("Slider", uslider, 0.0000001, 1000.0, "This is a number field."))
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retval = Draw.PupBlock("Constraint Template", block)
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# update id-property values after user changes settings
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if (retval):
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idprop['user_toggle']= utoggle.val
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idprop['user_slider']= uslider.val
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"""
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new_text = bpy.data.texts.new('pyconstraint_template.py')
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new_text.write(script_data)
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bpy.data.texts.active = new_text
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Window.RedrawAll()
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