New tsdev script

Author: photonstorm

package.json

@@ -41,7 +41,7 @@
     "tsgen": "cd scripts/tsgen && jsdoc -c jsdoc-tsd.conf.json",
     "test-ts": "cd scripts/tsgen/test && tsc > output.txt",
     "ts": "npm run tsgen && npm run test-ts",
-    "tsdev": "cd scripts/tsgen && tsc && jsdoc -c jsdoc-tsd.conf.json"
+    "tsdev": "npm run build-tsgen && npm run tsgen && npm run test-ts"
   },
   "keywords": [
     "2d",