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18 lines
708 B
18 lines
708 B
package syncable
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import (
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"errors"
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"hexmap-server/state"
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)
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var ErrorNoOp error = errors.New("action's effects were already applied, or it's an empty action")
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// Action is the interface for actions that can be shared.
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type Action interface {
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// Apply causes the action's effects to be applied to s, mutating it in place.
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// All syncable.Actions must conform to the standard that if an action can't be correctly applied, or if it would
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// have no effect, it returns an error without changing s.
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// If an action can be correctly applied but would have no effect, it should return ErrorNoOp.
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// If an action is correctly applied and has an effect, it should return nil.
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Apply(s *state.Synced) error
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}
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