26 lines
850 B
Go
26 lines
850 B
Go
package gohan
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// Context represents the current iteration of a System's matching entities. It
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// provides methods for retrieving components for the currently matched Entity,
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// and removing the currently matched Entity.
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type Context struct {
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Entity Entity
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allowed []ComponentID
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components []interface{}
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systemIndex int
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world *World
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}
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// Component gets a Component of the currently handled Entity.
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func (ctx *Context) Component(componentID ComponentID) interface{} {
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return ctx.components[componentID]
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}
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// RemoveEntity removes the currently handled Entity's components, causing it
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// to no longer be handled by any system. Because Gohan reuses removed Entity
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// IDs, applications must also remove any other references to the removed Entity.
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func (ctx *Context) RemoveEntity() bool {
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return ctx.world.RemoveEntity(ctx.Entity)
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}
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