// ResumeTracking moves the camera back to the Entity being tracked and resumes
// camera position updates
func (self *TopDownCamera) ResumeTracking() {
aboveEntity := components.GetTransform(self.trackingEntity).Position
aboveEntity.Y += self.trackingHeight
self.camera.AddComponent(
components.NewPositionAnimation(
aboveEntity, 0.5, func() { self.currentlyTracking = true },
),
)
}
func Test_Update_RemovesAFinishedOneTimeAnimation(t *testing.T) {
behavior, entityDb := getTestAnimation()
entity := core.NewEntity()
entity.AddComponent(
components.NewPositionAnimation(math3d.Vector{10, 10, 10}, 0.5, func() {}),
)
entityDb.RegisterEntity(entity)
behavior.Update(1)
assert.Nil(t, entity.GetComponent(components.ANIMATION))
}
func Test_Update_CallsCompletionCallbackOnCompletion(t *testing.T) {
behavior, entityDb := getTestAnimation()
callbackCalled := false
entity := core.NewEntity()
entity.AddComponent(
components.NewPositionAnimation(math3d.Vector{10, 10, 10}, 0.5, func() { callbackCalled = true }),
)
entityDb.RegisterEntity(entity)
behavior.Update(1)
assert.True(t, callbackCalled)
}
func Test_Update_UpdatesOverMultipleSeconds(t *testing.T) {
behavior, entityDb := getTestAnimation()
entity := core.NewEntity()
entity.AddComponent(
components.NewPositionAnimation(math3d.Vector{10, 10, 10}, 10, func() {}),
)
entityDb.RegisterEntity(entity)
var i float32 = 1
for ; i <= 10; i++ {
behavior.Update(1)
transform := components.GetTransform(entity)
assert.Equal(t, math3d.Vector{i, i, i}, transform.Position)
}
}
func Test_Update_UpdatesAPositionAnimationOverTime(t *testing.T) {
behavior, entityDb := getTestAnimation()
entity := core.NewEntity()
entity.AddComponent(
components.NewPositionAnimation(math3d.Vector{2, 2, 2}, 1, func() {}),
)
entityDb.RegisterEntity(entity)
// Move half way
behavior.Update(0.5)
transform := components.GetTransform(entity)
assert.Equal(t, math3d.Vector{1, 1, 1}, transform.Position)
// Move the rest of the way
behavior.Update(0.5)
transform = components.GetTransform(entity)
assert.Equal(t, math3d.Vector{2, 2, 2}, transform.Position)
}