505 lines
19 KiB
C
505 lines
19 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2020 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 6 End-User License
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Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
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End User License Agreement: www.juce.com/juce-6-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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struct BlankCanvas : public AnimatedContent
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{
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String getName() const override { return "Blank Canvas"; }
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void reset() override {}
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void handleTouch (Point<float>) override {}
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void generateCanvas (Graphics&, SharedCanvasDescription&, Rectangle<float>) override {}
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};
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//==============================================================================
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struct GridLines : public AnimatedContent
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{
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String getName() const override { return "Grid Lines"; }
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void reset() override {}
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void handleTouch (Point<float>) override {}
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void generateCanvas (Graphics& g, SharedCanvasDescription& canvas, Rectangle<float>) override
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{
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auto limits = canvas.getLimits();
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float lineThickness = 0.1f;
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g.setColour (Colours::blue);
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g.drawRect (canvas.getLimits(), lineThickness);
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for (float y = limits.getY(); y < limits.getBottom(); y += 2.0f)
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g.drawLine (limits.getX(), y, limits.getRight(), y, lineThickness);
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for (float x = limits.getX(); x < limits.getRight(); x += 2.0f)
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g.drawLine (x, limits.getY(), x, limits.getBottom(), lineThickness);
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g.setColour (Colours::darkred);
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g.drawLine (limits.getX(), limits.getCentreY(), limits.getRight(), limits.getCentreY(), lineThickness);
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g.drawLine (limits.getCentreX(), limits.getY(), limits.getCentreX(), limits.getBottom(), lineThickness);
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g.setColour (Colours::lightgrey);
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g.drawLine (limits.getX(), limits.getY(), limits.getRight(), limits.getBottom(), lineThickness);
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g.drawLine (limits.getX(), limits.getBottom(), limits.getRight(), limits.getY(), lineThickness);
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}
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};
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//==============================================================================
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struct BackgroundLogo : public AnimatedContent
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{
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BackgroundLogo()
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{
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static const char logoData[] = R"blahblah(
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<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
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viewBox="0 0 239.2 239.2" enable-background="new 0 0 239.2 239.2" xml:space="preserve">
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<path fill="#6CC04A" d="M118.8,201.3c-44.6,0-81-36.3-81-81s36.3-81,81-81s81,36.3,81,81S163.4,201.3,118.8,201.3z M118.8,44.8c-41.7,0-75.6,33.9-75.6,75.6s33.9,75.6,75.6,75.6s75.6-33.9,75.6-75.6S160.4,44.8,118.8,44.8z"/>
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<path fill="#3B5CAD" d="M182.6,117.6c1.4,0,2.7-0.5,3.7-1.5c1.1-1.1,1.6-2.5,1.4-4c-1.5-12.7-6.5-24.7-14.4-34.8c-1-1.2-2.3-1.9-3.8-1.9c-1.3,0-2.6,0.5-3.6,1.5l-39,39c-0.6,0.6-0.2,1.6,0.7,1.6L182.6,117.6z"/>
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<path fill="#E73E51" d="M169.5,165.2L169.5,165.2c1.5,0,2.8-0.7,3.8-1.9c7.9-10.1,12.9-22.1,14.4-34.8c0.2-1.5-0.3-2.9-1.4-4c-1-1-2.3-1.5-3.7-1.5l-55,0c-0.9,0-1.3,1-0.7,1.6l39,39C166.9,164.7,168.2,165.2,169.5,165.2z"/>
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<path fill="#E67E3C" d="M122.9,188L122.9,188c1,1,2.5,1.5,4,1.3c12.7-1.5,24.8-6.5,34.8-14.4c1.2-0.9,1.8-2.3,1.9-3.8c0-1.4-0.6-2.7-1.6-3.7l-38.9-38.9c-0.6-0.6-1.6-0.2-1.6,0.7l0,55.2C121.4,185.8,122,187,122.9,188z"/>
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<path fill="#F0E049" d="M68,75.4c-1.5,0-2.8,0.7-3.8,1.9c-7.9,10.1-12.9,22.1-14.4,34.8c-0.2,1.5,0.3,2.9,1.4,4c1,1,2.3,1.5,3.7,1.5l55,0c0.9,0,1.3-1,0.7-1.6l-39-39C70.6,76,69.3,75.4,68,75.4z"/>
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<path fill="#D5D755" d="M114.6,52.7c-1-1-2.5-1.5-4-1.3c-12.7,1.5-24.8,6.5-34.8,14.4c-1.2,0.9-1.8,2.3-1.9,3.8c0,1.4,0.6,2.7,1.6,3.7l38.9,38.9c0.6,0.6,1.6,0.2,1.6-0.7l0-55.2C116.1,54.9,115.5,53.6,114.6,52.7z"/>
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<path fill="#9CB6D3" d="M163.7,69.6c0-1.5-0.7-2.8-1.9-3.8c-10.1-7.9-22.1-12.9-34.8-14.4c-1.5-0.2-2.9,0.3-4,1.4c-1,1-1.5,2.3-1.5,3.7l0,55c0,0.9,1,1.3,1.6,0.7l39-39C163.1,72.1,163.7,70.9,163.7,69.6z"/>
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<path fill="#F5BD47" d="M109.9,123l-55,0c-1.4,0-2.7,0.5-3.7,1.5c-1.1,1.1-1.6,2.5-1.4,4c1.5,12.7,6.5,24.7,14.4,34.8c1,1.2,2.3,1.9,3.8,1.9c1.3,0,2.6-0.5,3.5-1.5c0,0,0,0,0,0l39-39C111.2,124,110.8,123,109.9,123z"/>
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<path fill="#F19F53" d="M114.4,128.5l-38.9,38.9c-1,1-1.6,2.3-1.6,3.7c0,1.5,0.7,2.9,1.9,3.8c10,7.9,22.1,12.9,34.8,14.4c1.6,0.2,3-0.3,4-1.3c0.9-0.9,1.4-2.2,1.4-3.6c0,0,0,0,0,0l0-55.2C116.1,128.3,115,127.9,114.4,128.5z"/>
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</svg>
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)blahblah";
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logo = Drawable::createFromSVG (*parseXML (logoData));
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}
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String getName() const override { return "Background Image"; }
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void reset() override {}
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void handleTouch (Point<float>) override {}
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void generateCanvas (Graphics& g, SharedCanvasDescription& canvas, Rectangle<float>) override
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{
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logo->drawWithin (g, canvas.getLimits().reduced (3.0f), RectanglePlacement (RectanglePlacement::centred), 0.6f);
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}
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std::unique_ptr<Drawable> logo;
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};
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//==============================================================================
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struct FlockDemo : public BackgroundLogo
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{
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String getName() const override { return "Flock"; }
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void setNumBirds (int numBirds)
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{
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BackgroundLogo::reset();
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birds.clear();
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for (int i = numBirds; --i >= 0;)
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birds.add ({});
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centreOfGravity = {};
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lastGravityMove = {};
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fakeMouseTouchLengthToRun = 0;
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fakeMouseTouchPosition = {};
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fakeMouseTouchVelocity = {};
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}
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void reset() override
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{
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BackgroundLogo::reset();
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setNumBirds (100);
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}
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void generateCanvas (Graphics& g, SharedCanvasDescription& canvas, Rectangle<float> activeArea) override
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{
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BackgroundLogo::generateCanvas (g, canvas, activeArea);
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if (Time::getCurrentTime() > lastGravityMove + RelativeTime::seconds (0.5))
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{
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if (fakeMouseTouchLengthToRun > 0)
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{
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--fakeMouseTouchLengthToRun;
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fakeMouseTouchPosition += fakeMouseTouchVelocity;
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centreOfGravity = fakeMouseTouchPosition;
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}
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else
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{
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centreOfGravity = {};
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if (rng.nextInt (300) == 2 && canvas.clients.size() > 0)
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{
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fakeMouseTouchLengthToRun = 50;
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fakeMouseTouchPosition = canvas.clients.getReference (rng.nextInt (canvas.clients.size())).centre;
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fakeMouseTouchVelocity = { rng.nextFloat() * 0.3f - 0.15f,
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rng.nextFloat() * 0.3f - 0.15f };
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}
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}
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}
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g.setColour (Colours::white.withAlpha (0.2f));
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if (! centreOfGravity.isOrigin())
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g.fillEllipse (centreOfGravity.getX() - 1.0f, centreOfGravity.getY() - 1.0f, 2.0f, 2.0f);
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for (int i = 0; i < birds.size(); ++i)
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for (int j = i + 1; j < birds.size(); ++j)
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attractBirds (birds.getReference(i), birds.getReference(j));
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for (auto& b : birds)
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{
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if (! centreOfGravity.isOrigin())
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b.move (centreOfGravity, 0.4f);
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b.update();
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b.draw (g);
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b.bounceOffEdges (canvas.getLimits().expanded (1.0f));
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}
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for (int i = rings.size(); --i >= 0;)
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{
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if (rings.getReference(i).update())
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rings.getReference(i).draw (g);
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else
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rings.remove (i);
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}
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}
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bool isRingNear (Point<float> p) const
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{
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for (auto& r : rings)
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if (r.centre.getDistanceFrom (p) < 1.0f)
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return true;
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return false;
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}
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void handleTouch (Point<float> position) override
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{
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lastGravityMove = Time::getCurrentTime();
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centreOfGravity = position;
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fakeMouseTouchLengthToRun = 0;
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if (! isRingNear (position))
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rings.add ({ position, 1.0f, 0.5f });
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}
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//==============================================================================
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struct Bird
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{
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Bird()
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{
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Random randGen;
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pos.x = randGen.nextFloat() * 10.0f - 5.0f;
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pos.y = randGen.nextFloat() * 10.0f - 5.0f;
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velocity.x = randGen.nextFloat() * 0.001f;
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velocity.y = randGen.nextFloat() * 0.001f;
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colour = Colour::fromHSV (randGen.nextFloat(), 0.2f, 0.9f, randGen.nextFloat() * 0.4f + 0.2f);
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shape.addTriangle (0.0f, 0.0f, -0.3f, 1.0f, 0.3f, 1.0f);
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shape = shape.createPathWithRoundedCorners (0.2f);
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shape.applyTransform (AffineTransform::scale (randGen.nextFloat() + 1.0f));
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}
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Point<float> pos, velocity, acc;
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Colour colour;
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Path shape;
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void move (Point<float> target, float strength)
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{
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auto r = target - pos;
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float rSquared = jmax (0.1f, (r.x * r.x) + (r.y * r.y));
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if (rSquared > 1.0f)
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velocity += (r * strength / rSquared);
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acc = {};
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}
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void accelerate (Point<float> acceleration)
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{
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acc += acceleration;
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}
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void bounceOffEdges (Rectangle<float> limits)
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{
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if (pos.x < limits.getX()) { velocity.x = std::abs (velocity.x); acc = {}; }
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if (pos.x > limits.getRight()) { velocity.x = -std::abs (velocity.x); acc = {}; }
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if (pos.y < limits.getY()) { velocity.y = std::abs (velocity.y); acc = {}; }
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if (pos.y > limits.getBottom()) { velocity.y = -std::abs (velocity.y); acc = {}; }
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}
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void update()
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{
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velocity += acc;
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float length = velocity.getDistanceFromOrigin();
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const float maxSpeed = 0.5f;
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if (length > maxSpeed)
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velocity = getVectorWithLength (velocity, maxSpeed);
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pos += velocity;
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}
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void draw (Graphics& g)
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{
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g.setColour (colour);
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g.fillPath (shape, AffineTransform::rotation (Point<float>().getAngleToPoint (velocity)).translated (pos));
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}
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};
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static Point<float> getVectorWithLength (Point<float> v, float newLength)
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{
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return v * (newLength / v.getDistanceFromOrigin());
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}
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static void attractBirds (Bird& b1, Bird& b2)
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{
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auto delta = b1.pos - b2.pos;
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const float zoneRadius = 10.0f;
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const float low = 0.4f;
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const float high = 0.65f;
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const float strength = 0.01f;
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const float distanceSquared = (delta.x * delta.x) * (delta.y * delta.y);
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if (distanceSquared < zoneRadius * zoneRadius && distanceSquared > 0.01f)
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{
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float proportion = distanceSquared / (zoneRadius * zoneRadius);
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if (proportion < low)
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{
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const float F = (low / proportion - 1.0f) * strength * 0.003f;
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delta = getVectorWithLength (delta, F);
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b1.accelerate (delta);
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b2.accelerate (-delta);
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}
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else if (proportion < high)
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{
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const float regionSize = high - low;
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const float adjustedProportion = (proportion - low) / regionSize;
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const float F = (0.5f - std::cos (adjustedProportion * MathConstants<float>::twoPi) * 0.5f + 0.5f) * strength;
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b1.accelerate (getVectorWithLength (b2.velocity, F));
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b2.accelerate (getVectorWithLength (b1.velocity, F));
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}
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else
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{
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const float regionSize = 1.0f - high;
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const float adjustedProportion = (proportion - high) / regionSize;
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const float F = (0.5f - std::cos (adjustedProportion * MathConstants<float>::twoPi) * 0.5f + 0.5f) * strength;
|
||
|
|
delta = getVectorWithLength (delta, F);
|
||
|
|
|
||
|
|
b1.accelerate (-delta);
|
||
|
|
b2.accelerate (delta);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Random rng;
|
||
|
|
Array<Bird> birds;
|
||
|
|
Point<float> centreOfGravity;
|
||
|
|
Time lastGravityMove;
|
||
|
|
|
||
|
|
int fakeMouseTouchLengthToRun = 0;
|
||
|
|
Point<float> fakeMouseTouchPosition, fakeMouseTouchVelocity;
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
struct Ring
|
||
|
|
{
|
||
|
|
Point<float> centre;
|
||
|
|
float diameter, opacity;
|
||
|
|
|
||
|
|
bool update()
|
||
|
|
{
|
||
|
|
diameter += 0.7f;
|
||
|
|
opacity -= 0.01f;
|
||
|
|
|
||
|
|
return opacity > 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void draw (Graphics& g)
|
||
|
|
{
|
||
|
|
const float thickness = 0.2f;
|
||
|
|
|
||
|
|
auto r = Rectangle<float> (diameter, diameter).withCentre (centre);
|
||
|
|
|
||
|
|
Path p;
|
||
|
|
p.addEllipse (r);
|
||
|
|
p.addEllipse (r.reduced (thickness));
|
||
|
|
p.setUsingNonZeroWinding (false);
|
||
|
|
|
||
|
|
g.setColour (Colours::white.withAlpha (opacity));
|
||
|
|
g.fillPath (p);
|
||
|
|
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
Array<Ring> rings;
|
||
|
|
};
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
struct FlockWithText : public FlockDemo
|
||
|
|
{
|
||
|
|
FlockWithText()
|
||
|
|
{
|
||
|
|
messages.add ("JUCE is our cross-platform C++ framework\n\n"
|
||
|
|
"In this demo, the same C++ app is running natively on NUMDEVICES devices,\n"
|
||
|
|
"which are sharing their graphic state via the network");
|
||
|
|
|
||
|
|
messages.add ("No other libraries were needed to create this demo.\n"
|
||
|
|
"JUCE provides thousands of classes for cross-platform GUI,\n"
|
||
|
|
"audio, networking, data-structures and many other common tasks");
|
||
|
|
|
||
|
|
messages.add ("As well as a code library, JUCE provides tools for managing\n"
|
||
|
|
"cross-platform projects that are built with Xcode,\n"
|
||
|
|
"Visual Studio, Android Studio, GCC and other compilers");
|
||
|
|
|
||
|
|
messages.add ("JUCE can be used to build desktop or mobile apps, and also\n"
|
||
|
|
"audio plug-ins in the VST2, VST3, AudioUnit, AAX and RTAS formats");
|
||
|
|
}
|
||
|
|
|
||
|
|
String getName() const override { return "Flock with text"; }
|
||
|
|
|
||
|
|
void reset() override
|
||
|
|
{
|
||
|
|
FlockDemo::reset();
|
||
|
|
|
||
|
|
currentMessage = 0;
|
||
|
|
currentMessageStart = {};
|
||
|
|
clientIndex = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void generateCanvas (Graphics& g, SharedCanvasDescription& canvas, Rectangle<float> activeArea) override
|
||
|
|
{
|
||
|
|
FlockDemo::generateCanvas (g, canvas, activeArea);
|
||
|
|
|
||
|
|
const float textSize = 0.5f; // inches
|
||
|
|
const float textBlockWidth = 20.0f; // inches
|
||
|
|
|
||
|
|
tick();
|
||
|
|
|
||
|
|
Graphics::ScopedSaveState ss (g);
|
||
|
|
const float scale = 20.0f; // scaled to allow the fonts to use more reasonable sizes
|
||
|
|
g.addTransform (AffineTransform::scale (1.0f / scale));
|
||
|
|
|
||
|
|
String text = String (messages[currentMessage]).replace ("NUMDEVICES", String (canvas.clients.size()));
|
||
|
|
|
||
|
|
AttributedString as;
|
||
|
|
as.append (text, Font (textSize * scale), Colour (0x80ffffff).withMultipliedAlpha (alpha));
|
||
|
|
|
||
|
|
as.setJustification (Justification::centred);
|
||
|
|
auto middle = canvas.clients[clientIndex % canvas.clients.size()].centre * scale;
|
||
|
|
as.draw (g, Rectangle<float> (textBlockWidth * scale, textBlockWidth * scale).withCentre (middle));
|
||
|
|
}
|
||
|
|
|
||
|
|
void tick()
|
||
|
|
{
|
||
|
|
const double displayTimeSeconds = 5.0;
|
||
|
|
const double fadeTimeSeconds = 1.0;
|
||
|
|
|
||
|
|
Time now = Time::getCurrentTime();
|
||
|
|
const double secondsSinceStart = (now - currentMessageStart).inSeconds();
|
||
|
|
|
||
|
|
if (secondsSinceStart > displayTimeSeconds)
|
||
|
|
{
|
||
|
|
currentMessageStart = now;
|
||
|
|
currentMessage = (currentMessage + 1) % messages.size();
|
||
|
|
++clientIndex;
|
||
|
|
alpha = 0;
|
||
|
|
}
|
||
|
|
else if (secondsSinceStart > displayTimeSeconds - fadeTimeSeconds)
|
||
|
|
{
|
||
|
|
alpha = (float) jlimit (0.0, 1.0, (displayTimeSeconds - secondsSinceStart) / fadeTimeSeconds);
|
||
|
|
}
|
||
|
|
else if (secondsSinceStart < fadeTimeSeconds)
|
||
|
|
{
|
||
|
|
alpha = (float) jlimit (0.0, 1.0, secondsSinceStart / fadeTimeSeconds);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
StringArray messages;
|
||
|
|
int currentMessage = 0, clientIndex = 0;
|
||
|
|
float alpha = 0;
|
||
|
|
Point<float> centre;
|
||
|
|
Time currentMessageStart;
|
||
|
|
};
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
struct SmallFlock : public FlockDemo
|
||
|
|
{
|
||
|
|
String getName() const override { return "Small Flock"; }
|
||
|
|
|
||
|
|
void reset() override
|
||
|
|
{
|
||
|
|
setNumBirds (20);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
struct BigFlock : public FlockDemo
|
||
|
|
{
|
||
|
|
String getName() const override { return "Big Flock"; }
|
||
|
|
|
||
|
|
void reset() override
|
||
|
|
{
|
||
|
|
setNumBirds (200);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
template <int numHorizontalLogos>
|
||
|
|
struct MultiLogo : public BackgroundLogo
|
||
|
|
{
|
||
|
|
String getName() const override { return "Multi-Logo " + String ((int) numHorizontalLogos); }
|
||
|
|
|
||
|
|
void generateCanvas (Graphics& g, SharedCanvasDescription& canvas, Rectangle<float>) override
|
||
|
|
{
|
||
|
|
float indent = 0.5f;
|
||
|
|
float logoSize = canvas.getLimits().getWidth() / numHorizontalLogos;
|
||
|
|
auto limits = canvas.getLimits();
|
||
|
|
|
||
|
|
for (float x = limits.getX(); x < limits.getRight(); x += logoSize)
|
||
|
|
{
|
||
|
|
for (float y = limits.getY(); y < limits.getBottom(); y += logoSize)
|
||
|
|
{
|
||
|
|
logo->drawWithin (g, Rectangle<float> (x, y, logoSize, logoSize).reduced (indent),
|
||
|
|
RectanglePlacement (RectanglePlacement::centred), 0.5f);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
void createAllDemos (OwnedArray<AnimatedContent>& demos)
|
||
|
|
{
|
||
|
|
demos.add (new FlockDemo());
|
||
|
|
demos.add (new FlockWithText());
|
||
|
|
demos.add (new SmallFlock());
|
||
|
|
demos.add (new BigFlock());
|
||
|
|
demos.add (new BackgroundLogo());
|
||
|
|
demos.add (new MultiLogo<5>());
|
||
|
|
demos.add (new MultiLogo<10>());
|
||
|
|
demos.add (new GridLines());
|
||
|
|
demos.add (new BlankCanvas());
|
||
|
|
}
|