Free and open source application that will help you stitch images together
Version: R1V5RepTile's job is simple: it stitches together images to form maps. It is designed to work alongside an image editing program such as Pixen, where these images are created.
Operating System: Mac OS X
RepTile allows you to export the images to a .TIFF format or save them for later editing in the naitive .RTM format. Eventually, RepTile will gain more features, and act as the great "stitcher-together" for tiles, sprites, and other such objects.
You can get started by importing tiles into RepTile using the "Open Tile Images…" command in the "Tile" menu, by pressing option-command-O, by dragging the images into the list, or by pressing the "Add Tiles…" button. Then select the tiles from the right of the window, and draw by clicking in the white rectangle. These tiles will be preserved between sessions as long as they appear on the map. (the list is not saved, just the tiles on the map)
To change the size of your brush, you may use the "Drawing Options" panel. As you draw closer to the edge of the map, it will grow to accomodate. The resizing panel present in previous versions is gone.
Zooming is also possible using the widget at the bottom of the window. Pressing up or down will scroll through the list of frequently used percentages; you can enter your own into the box as well. Resizing can be done in the "Map" menu.
Another feature of RepTile is the Properties panel. Here you can enter properties for tiles. This does nothing at the moment, but when later software imports the .rtm, it will be used to determine things like collision. Use the "+" button to add a new property, and the "-" button to remove one. To edit the name or value, just double click on it.
A nifty perk in this early release is the Tile Composition panel. This panel lets you combine two tiles into one tile, applying masks to show how. The bottom image will be composited first, but only where the mask is opaque. Then the top image will be composited on top, but again only where its mask is opaque. This allows you to easily make corner tiles or other such intersections.
NOTE: RepTile is licensed and distributed under the terms of the MIT License.