Hi, There is two ways to do this. One is to make a structure which can be moved when it is given a point of some sort. The second way is for a skill to transform a terrain, and is able to switch between a closed and open door terrain. The real question is, do you want a door to be completely impervious to damage, or do you want something that will be able to destroyed after taking a certain number of damage. For a good look at doors that can be manipulated, check out my one hit wonder map, also called zombie house. You will notice that the players characters have a skill called actuate that will give a point to a door, the best example is the garage doors. If you like these kind of doors but don't want them to be destroyed, then just give the doors a type of health that the enemy cannot do. For an example of the terrain type of door closeing and opening, use the Replace terrain skill flag. replace_terrain=, takes oldTerrain|newTerrain and causes the skill to replace the old terrain type with the new one. You can specify multiple replacement groups by separating them with commas. Such as: grass|burnt_grass,tree|burnt_tree So a skill could be called "use door". I would make it like this. Skill 10 |flags Description Allows the unit to open and close doors. Use this on any tile that says opened door or closed door. Costs 1 action, range is 1. Key is D. Terrain Key=d action_cost=1 replace_terrain=opened_door|closed_door,closed_door|opened_door sound=door Then you would just make terrain that the tile would turn into. The opened door would be like a floor. The closed door would have things like blocks_sight and impassable on it. If you wished, you could split the skill into two. One opens and one closes and then you could use sounds to signify each one. That is really up to you. Hope that helps you out. al -----Original Message----- From: ian-reeds-games-bounce@xxxxxxxxxxxxx [mailto:ian-reeds-games-bounce@xxxxxxxxxxxxx] On Behalf Of Søren Jensen Sent: Wednesday, July 23, 2014 12:52 PM To: ian-reeds-games@xxxxxxxxxxxxx Subject: [ian-reeds-games] questions for map packs Hi all. I hope Ill get more time to work on my map pack soon, and I hope to get more feedback. I have a few questions: 1: Can I make a door which can be opened and then later be closed to protect the people behind the door? I could use the open door skill, but then the door disappears. 2: If I make an attack, a weapon which shoots and can give damage for more than two tiles, how do I then avoid that the weapon can do damage through walls? 3: How do i update my map pack to the latest developer version of the engine? Do I need to change anything to make sure itll work? 4: When the map pack is ready for release, how do I get a link into the client so people can download it? Im sorry if some of those questions already has been answered. Im quite new here on the list, and Im still learning things regarding to Tactical battle. :) Best regards Søren.