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Code Issues Releases Wiki Activity

Add transitions to light flash (#2201)

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This commit is contained in:
Alex
2021-08-30 21:18:16 -05:00
committed by GitHub
parent 54337befc2
commit ea1b5e19f0
6 changed files with 65 additions and 3 deletions
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43
esphome/components/light/transformers.h
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@@ -58,7 +58,45 @@ class LightFlashTransformer : public LightTransformer {
public:
LightFlashTransformer(LightState &state) : state_(state) {}
optional<LightColorValues> apply() override { return this->get_target_values(); }
void start() override {
this->transition_length_ = this->state_.get_flash_transition_length();
if (this->transition_length_ * 2 > this->length_)
this->transition_length_ = this->length_ / 2;
// do not create transition if length is 0
if (this->transition_length_ == 0)
return;
// first transition to original target
this->transformer_ = this->state_.get_output()->create_default_transition();
this->transformer_->setup(this->state_.current_values, this->target_values_, this->transition_length_);
}
optional<LightColorValues> apply() override {
// transition transformer does not handle 0 length as progress returns nan
if (this->transition_length_ == 0)
return this->target_values_;
if (this->transformer_ != nullptr) {
if (!this->transformer_->is_finished()) {
return this->transformer_->apply();
} else {
this->transformer_->stop();
this->transformer_ = nullptr;
}
}
if (millis() > this->start_time_ + this->length_ - this->transition_length_ &&
!this->secondary_transition_occurred_) {
// second transition back to start value
this->transformer_ = this->state_.get_output()->create_default_transition();
this->transformer_->setup(this->state_.current_values, this->get_start_values(), this->transition_length_);
this->secondary_transition_occurred_ = true;
}
// once transition is complete, don't change states until next transition
return optional<LightColorValues>();
}
// Restore the original values after the flash.
void stop() override {
@@ -69,6 +107,9 @@ class LightFlashTransformer : public LightTransformer {
protected:
LightState &state_;
uint32_t transition_length_;
bool secondary_transition_occurred_{false};
std::unique_ptr<LightTransformer> transformer_{nullptr};
};
} // namespace light