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Merge pull request #6 from joelschutz/1.1
1.1 Release
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| package stagehand | ||
|
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| type SceneTransitionTrigger int | ||
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| // A Directive is a struct that represents how a scene should be transitioned | ||
| type Directive[T any] struct { | ||
| Dest Scene[T] | ||
| Transition SceneTransition[T] | ||
| Trigger SceneTransitionTrigger | ||
| } | ||
|
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| // A SceneDirector is a struct that manages the transitions between scenes | ||
| type SceneDirector[T any] struct { | ||
| SceneManager[T] | ||
| RuleSet map[Scene[T]][]Directive[T] | ||
| } | ||
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| func NewSceneDirector[T any](scene Scene[T], state T, RuleSet map[Scene[T]][]Directive[T]) *SceneDirector[T] { | ||
| s := &SceneDirector[T]{RuleSet: RuleSet} | ||
| s.current = scene | ||
| scene.Load(state, s) | ||
| return s | ||
| } | ||
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| // ProcessTrigger finds if a transition should be triggered | ||
| func (d *SceneDirector[T]) ProcessTrigger(trigger SceneTransitionTrigger) { | ||
| for _, directive := range d.RuleSet[d.current.(Scene[T])] { | ||
| if directive.Trigger == trigger { | ||
| if directive.Transition != nil { | ||
| // With transition | ||
| // Equivalent to SwitchWithTransition | ||
| sc := d.current.(Scene[T]) | ||
| directive.Transition.Start(sc, directive.Dest, d) | ||
| if c, ok := sc.(TransitionAwareScene[T]); ok { | ||
| directive.Dest.Load(c.PreTransition(directive.Dest), d) | ||
| } else { | ||
| directive.Dest.Load(sc.Unload(), d) | ||
| } | ||
| d.current = directive.Transition | ||
| } else { | ||
| // No transition | ||
| // Equivalent to SwitchTo | ||
| if c, ok := d.current.(Scene[T]); ok { | ||
| directive.Dest.Load(c.Unload(), d) | ||
| d.current = directive.Dest | ||
| } | ||
| } | ||
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| } | ||
| } | ||
| } | ||
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| func (d *SceneDirector[T]) ReturnFromTransition(scene, orgin Scene[T]) { | ||
| if c, ok := scene.(TransitionAwareScene[T]); ok { | ||
| c.PostTransition(orgin.Unload(), orgin) | ||
| } else { | ||
| scene.Load(orgin.Unload(), d) | ||
| } | ||
| d.current = scene | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package stagehand | ||
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| import ( | ||
| "testing" | ||
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| "github.com/stretchr/testify/assert" | ||
| ) | ||
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| func TestSceneDirector_NewSceneDirector(t *testing.T) { | ||
| mockScene := &MockScene{} | ||
| ruleSet := make(map[Scene[int]][]Directive[int]) | ||
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| director := NewSceneDirector[int](mockScene, 1, ruleSet) | ||
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| assert.NotNil(t, director) | ||
| assert.Equal(t, mockScene, director.current) | ||
| } | ||
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| func TestSceneDirector_ProcessTrigger(t *testing.T) { | ||
| mockScene := &MockScene{} | ||
| mockScene2 := &MockScene{} | ||
| ruleSet := make(map[Scene[int]][]Directive[int]) | ||
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| director := NewSceneDirector[int](mockScene, 1, ruleSet) | ||
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| rule := Directive[int]{Dest: mockScene2, Trigger: 2} | ||
| ruleSet[mockScene] = []Directive[int]{rule} | ||
|
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| // Call the ProcessTrigger method with wrong trigger | ||
| director.ProcessTrigger(1) | ||
| assert.NotEqual(t, rule.Dest, director.current) | ||
|
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| // Call the ProcessTrigger method with correct trigger | ||
| director.ProcessTrigger(2) | ||
| assert.Equal(t, rule.Dest, director.current) | ||
| } | ||
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| func TestSceneDirector_ProcessTriggerWithTransition(t *testing.T) { | ||
| mockScene := &MockScene{} | ||
| mockTransition := &baseTransitionImplementation{} | ||
| ruleSet := make(map[Scene[int]][]Directive[int]) | ||
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| director := NewSceneDirector[int](mockScene, 1, ruleSet) | ||
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| rule := Directive[int]{Dest: &MockScene{}, Trigger: 2, Transition: mockTransition} | ||
| ruleSet[mockScene] = []Directive[int]{rule} | ||
|
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| // Call the ProcessTrigger method with wrong trigger | ||
| director.ProcessTrigger(1) | ||
| assert.NotEqual(t, rule.Transition, director.current) | ||
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| // Call the ProcessTrigger method with correct trigger | ||
| director.ProcessTrigger(2) | ||
| assert.Equal(t, rule.Transition, director.current) | ||
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| rule.Transition.End() | ||
| assert.Equal(t, rule.Dest, director.current) | ||
| } | ||
|
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| func TestSceneDirector_ProcessTriggerWithTransitionAwareness(t *testing.T) { | ||
| mockScene := &MockTransitionAwareScene{} | ||
| mockTransition := &baseTransitionImplementation{} | ||
| ruleSet := make(map[Scene[int]][]Directive[int]) | ||
|
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| director := NewSceneDirector[int](mockScene, 1, ruleSet) | ||
|
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| rule := Directive[int]{Dest: &MockTransitionAwareScene{}, Trigger: 2, Transition: mockTransition} | ||
| ruleSet[mockScene] = []Directive[int]{rule} | ||
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| // Call the ProcessTrigger method with wrong trigger | ||
| director.ProcessTrigger(1) | ||
| assert.NotEqual(t, rule.Transition, director.current) | ||
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| // Call the ProcessTrigger method with correct trigger | ||
| director.ProcessTrigger(2) | ||
| assert.Equal(t, rule.Transition, director.current) | ||
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| rule.Transition.End() | ||
| assert.Equal(t, rule.Dest, director.current) | ||
| } |
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