Issue #113 - Add A* to rush Dungeon

[akwawa]

We don't take chests or fight for nothing.
The general gain is better on the hardest dungeons (more time to kill enemies needed than dungeons where the player can OS all enemies).

I use the A* from here: http://github.com/bgrins/javascript-astar
And minified it.

[akwawa]

Please, test it before merging.
I had done a lot of "write/undo" before the script was 100% functional.

[EugeneFabre]

This needs to be implemented better since I don't know how exactly to do it well but you don't even need pathfinding with:

    if (!DungeonRunner.fightingBoss()) {
  DungeonRunner.fightingBoss(true);
  DungeonBattle.generateNewBoss();
    }

[akwawa]

Hello @EugeneFabre,

I don't want to implement your code.
your code is an extract of this :

    public static startBossFight() {
        if (DungeonRunner.map.currentTile().type() !== GameConstants.DungeonTile.boss || DungeonRunner.fightingBoss()) {
            return;
        }

        DungeonRunner.fightingBoss(true);
        DungeonBattle.generateNewBoss();
    }

This code verifies that you are in the correct tile before launching the fight.
If you remove this and just do the fight, it looks like a "hack".
I'm not a fan to do this.
I prefer to keep the global situation than just hack the game.

When your use your code, the first line said your find the Boss and the 2nd line start the fight.
You can use it while standing in the entrance tile.

As said before, I don't want/like to use this method and I will not implement them.

[elrandira]

I think this PR can be closed as #352 covered this

[umbralOptimatum]

That PR uses a different method, but I do feel this should be closed as the algorithm relies on information the player doesn't have.