Types/CollisionMask

The collision mask is specified as an Array (Types/table) of strings. Every entry is a specification of one layer the object collides with or a special collision option.

Layers

• ground-tile
• water-tile
• resource-layer
• doodad-layer
• floor-layer
• item-layer
• ghost-layer
• object-layer
• player-layer
• train-layer
• layer-11
• layer-12
• layer-13
• layer-14
• layer-15

Layer-11 through layer-15 are currently unused by the core game.

Collision options

These are not collision masks, instead they control other aspects of collision, but they are still specified here.

"not-colliding-with-itself"

Any prototype that has this collision mask option will not collide with any other prototype that also has this collision mask option. This option functions like a global whitelist of prototypes that don't collide with one another.

Default collision masks

The default collision masks of all entity types can be found here.

Example (Most common collision mask of buildings):

collision_mask = { "item-layer", "object-layer", "player-layer", "water-tile"}