PlacementCostProvider

Typed view over a game-owned cost provider (inventory, wallet, stockpile). Grid Placement does not own inventory and cannot see its boundary. Any Object implementing this id-keyed protocol works as a provider:
get_count_by_id(id: StringName) -> int
try_remove_by_id(id: StringName, amount: int) -> int
try_add_by_id(id: StringName, amount: int) -> int

This wrapper is the one place that probes for those methods, so SpendCostRuleBase and RefundCalculator call a typed API. See the placement rules guide for the limits of spending through the plugin.

Source: addons/grid_placement/placement/placement_rules/template_rules/placement_cost_provider.gd

Syntax

class PlacementCostProvider extends RefCounted

Members

Name	Kind	Summary
METHOD_COUNT	Field
METHOD_REMOVE	Field
METHOD_ADD	Field
is_bound	Method
can_count	Method
can_remove	Method
can_add	Method
get_missing_methods	Method
get_target_class	Method
count	Method
remove	Method
add	Method