Minor fix; control of the dummy in techdemo.py is a little better.
Minor fix; control of the dummy in techdemo.py is a little better.

fifengine/fifengine,fifengine/fifengine,gravitystorm/fifengine,Niektory/fifengine,Niektory/fifengine,cbeck88/fifengine,gravitystorm/fifengine,cbeck88/fifengine,fifengine/fifengine,Niektory/fifengine,cbeck88/fifengine,gravitystorm/fifengine,gravitystorm/fifengine,cbeck88/fifengine