hexagonal_map: Add turn-based movement mode #1239
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For godotengine#1176. Used "Extract TileMap layers as individual TileMapLayer nodes" in the TileMap editor. Test * Walk around with the Troll and everything seems fine. This demo always allowed you to walk over empty tiles, so there's not much to the TileMap.
Games with hexagonal maps usually want characters to stay within the grid, so add another movement option. This troll has no physics and uses tweens to move. Instead of collision, it uses tile values to determine where they're allowed to go.
Move troll's root pivot to line up with their collider. This makes their global_position a good representation of where they are. Add check for moving to an invalid tile and undo our move. In my tests, this isn't less smooth than skipping the move_and_slide if (global_position + velocity * dt) is an invalid tile and allows sliding to resolve us to a slightly different position.
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Games with hexagonal maps usually want characters to move between tiles on the grid, so I added another movement option that makes the troll from tile to tile like a turn-based hex game. It still uses WASD controls (you need to press multiple keys to hit all 6 directions). Works well on gamepad too.
Additionally, the current
move_and_slidetroll doesn't really interact with the world, so I made it stop before leaving the grid. This also acts as a demonstration of how to get the tile id for interacting with objects represented by valid tiles.I also converted TileMap to TileMapLayer.
No untyped_declaration warnings.
Demo:
godot-hexmap.mp4