turns out my exception handling in SpritePart's constructor is unneeded and wrong
turns out my exception handling in SpritePart's constructor is unneeded and wrong

bdonlan/openc2e,ccdevnet/openc2e,ccdevnet/openc2e,crystalline/openc2e,ccdevnet/openc2e,crystalline/openc2e,ccdevnet/openc2e,bdonlan/openc2e,bdonlan/openc2e,crystalline/openc2e,bdonlan/openc2e,ccdevnet/openc2e,crystalline/openc2e,crystalline/openc2e,ccdevnet/openc2e