From 566ecc0968edb2d99df1fd6cc30f3eb32e994e82 Mon Sep 17 00:00:00 2001
From: James Ball <james@ball.sh>
Date: Tue, 20 Feb 2024 15:32:52 +0000
Subject: [PATCH] Add randomise button

---
 Resources/svg/random.svg                 |  2 +-
 Source/EffectsComponent.cpp              | 12 +++++++-
 Source/EffectsComponent.h                |  3 ++
 Source/audio/WobbleEffect.cpp            |  2 +-
 Source/components/EffectsListComponent.h | 38 ++++++++++++++++++++++++
 5 files changed, 54 insertions(+), 3 deletions(-)

diff --git a/Resources/svg/random.svg b/Resources/svg/random.svg
index d69aa6d..c673a2f 100644
--- a/Resources/svg/random.svg
+++ b/Resources/svg/random.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M5,3H19A2,2 0 0,1 21,5V19A2,2 0 0,1 19,21H5A2,2 0 0,1 3,19V5A2,2 0 0,1 5,3M7,5A2,2 0 0,0 5,7A2,2 0 0,0 7,9A2,2 0 0,0 9,7A2,2 0 0,0 7,5M17,15A2,2 0 0,0 15,17A2,2 0 0,0 17,19A2,2 0 0,0 19,17A2,2 0 0,0 17,15M17,5A2,2 0 0,0 15,7A2,2 0 0,0 17,9A2,2 0 0,0 19,7A2,2 0 0,0 17,5M12,10A2,2 0 0,0 10,12A2,2 0 0,0 12,14A2,2 0 0,0 14,12A2,2 0 0,0 12,10M7,15A2,2 0 0,0 5,17A2,2 0 0,0 7,19A2,2 0 0,0 9,17A2,2 0 0,0 7,15Z" /></svg>
\ No newline at end of file
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M5,3H19A2,2 0 0,1 21,5V19A2,2 0 0,1 19,21H5A2,2 0 0,1 3,19V5A2,2 0 0,1 5,3M12,10A2,2 0 0,0 10,12A2,2 0 0,0 12,14A2,2 0 0,0 14,12A2,2 0 0,0 12,10M7,5A2,2 0 0,0 5,7A2,2 0 0,0 7,9A2,2 0 0,0 9,7A2,2 0 0,0 7,5M17,15A2,2 0 0,0 15,17A2,2 0 0,0 17,19A2,2 0 0,0 19,17A2,2 0 0,0 17,15Z" /></svg>
\ No newline at end of file
diff --git a/Source/EffectsComponent.cpp b/Source/EffectsComponent.cpp
index d0dcd0c..de565dc 100644
--- a/Source/EffectsComponent.cpp
+++ b/Source/EffectsComponent.cpp
@@ -23,6 +23,13 @@ EffectsComponent::EffectsComponent(OscirenderAudioProcessor& p, OscirenderAudioP
     };
     addAndMakeVisible(addBtn);*/
 
+    addAndMakeVisible(randomiseButton);
+
+	randomiseButton.onClick = [this] {
+		itemData.randomise();
+		listBox.updateContent();
+	};
+
     {
         juce::MessageManagerLock lock;
         audioProcessor.broadcaster.addChangeListener(this);
@@ -38,7 +45,10 @@ EffectsComponent::~EffectsComponent() {
 }
 
 void EffectsComponent::resized() {
-    auto area = getLocalBounds().withTrimmedTop(20).reduced(20);
+    auto area = getLocalBounds();
+    auto titleBar = area.removeFromTop(20);
+	randomiseButton.setBounds(titleBar.removeFromRight(20));
+    area = area.reduced(20);
     frequency.setBounds(area.removeFromTop(30));
 
     area.removeFromTop(6);
diff --git a/Source/EffectsComponent.h b/Source/EffectsComponent.h
index 986bad4..071ee7c 100644
--- a/Source/EffectsComponent.h
+++ b/Source/EffectsComponent.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <JuceHeader.h>
+#include "LookAndFeel.h"
 #include "audio/BitCrushEffect.h"
 #include "PluginProcessor.h"
 #include "components/DraggableListBox.h"
@@ -20,6 +21,8 @@ private:
 
 	// juce::TextButton addBtn;
 
+	SvgButton randomiseButton{ "randomise", juce::String(BinaryData::random_svg), Colours::accentColor };
+
 	AudioEffectListBoxItemData itemData;
 	EffectsListBoxModel listBoxModel;
 	DraggableListBox listBox;
diff --git a/Source/audio/WobbleEffect.cpp b/Source/audio/WobbleEffect.cpp
index c89ac40..f7619d6 100644
--- a/Source/audio/WobbleEffect.cpp
+++ b/Source/audio/WobbleEffect.cpp
@@ -8,7 +8,7 @@ Point WobbleEffect::apply(int index, Point input, const std::vector<double>& val
     // TODO: this doesn't consider sample rate
     smoothedFrequency = smoothedFrequency * 0.99995 + pitchDetector.frequency * 0.00005;
     double theta = nextPhase(smoothedFrequency, sampleRate);
-    double delta = values[0] * std::sin(theta);    
+    double delta = 0.5 * values[0] * std::sin(theta);    
 
     return input + delta;
 }
diff --git a/Source/components/EffectsListComponent.h b/Source/components/EffectsListComponent.h
index 8b1e202..78feebd 100644
--- a/Source/components/EffectsListComponent.h
+++ b/Source/components/EffectsListComponent.h
@@ -5,6 +5,7 @@
 #include "../audio/Effect.h"
 #include "EffectComponent.h"
 #include "ComponentList.h"
+#include <random>
 
 // Application-specific data container
 class OscirenderAudioProcessorEditor;
@@ -18,6 +19,43 @@ struct AudioEffectListBoxItemData : public DraggableListBoxItemData
         resetData();
     }
 
+    void randomise() {
+        juce::SpinLock::ScopedLockType lock(audioProcessor.effectsLock);
+		for (int i = 0; i < data.size(); i++) {
+			auto effect = data[i];
+			auto id = effect->getId();
+            
+            if (id.contains("scale") || id.contains("translate")) {
+                continue;
+            }
+
+            for (auto& parameter : effect->parameters) {
+                parameter->setValueNotifyingHost(juce::Random::getSystemRandom().nextFloat());
+                if (parameter->lfo != nullptr) {
+                    parameter->lfo->setUnnormalisedValueNotifyingHost((int) LfoType::Static);
+                    parameter->lfoRate->setUnnormalisedValueNotifyingHost(1);
+                    
+                    if (juce::Random::getSystemRandom().nextFloat() > 0.8) {
+                        parameter->lfo->setUnnormalisedValueNotifyingHost((int)(juce::Random::getSystemRandom().nextFloat() * (int)LfoType::Noise));
+                        parameter->lfoRate->setValueNotifyingHost(juce::Random::getSystemRandom().nextFloat() * 0.1);
+                    }
+                }
+            }
+			effect->enabled->setValueNotifyingHost(juce::Random::getSystemRandom().nextFloat() > 0.8);
+		}
+
+        // shuffle precedence
+        std::random_device rd;
+        std::mt19937 g(rd());
+		std::shuffle(data.begin(), data.end(), g);
+
+		for (int i = 0; i < data.size(); i++) {
+			data[i]->setPrecedence(i);
+		}
+
+		audioProcessor.updateEffectPrecedence();
+    }
+
     void resetData() {
         juce::SpinLock::ScopedLockType lock(audioProcessor.effectsLock);
         data.clear();