On this tutorial, I will show you how to create various traps for PX maps. As an example, I will demonstrate some of the traps used in the PX Rope Race map bundled with the release of 0.8.0. (You can find it here.)
What's the Map Editor ?
The Map Editor is not intended as a graphics tool to build maps in. Paint will do this job for you, though more accomplished mappers would usually recommend a more powerful and extensive image manipulation program such as Gimp or Photoshop for this purpose).
MEd allows adding complex objects (or entities) on a specified map, like spawnpoints, teleports, gravity fields and much more.
For an easier understanding of this tutorial, it's recommended to play through the map in question prior to reading.
Using the map editor