Types/CollisionMask
The collision mask is specified by list of Types/string, every input is specification of one layer the object collides with.
Layers are:
- ground-tile
- water-tile
- resource-layer
- floor-layer
- item-layer
- object-layer
- player-layer
- ghost-layer
- doodad-layer
Additional input is "not-colliding-with-itself".
Example (Most common collision mask of buildings):
collision_mask = { "item-layer", "object-layer", "player-layer", "water-tile"}