magic_time_machine/magic_time_machine.ga at master · leandroestrella/magic_time_machine · GitHub

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/*

	"Magic Time Machine aka Neo-Suprematist Machine"
	Alexis Leandro Estrella / Ji Yeon Kim / Laura Martorana
	[Interactive and Electronic Media / Mª José Martínez de Pisón Ramón / http://mie.pluton.cc/]

*/

// imgs variables
images = {}		// img table declaration
currentImage = 0	// current img
numImages = 30	// max num of img

// video capture
grabber = ofVideoGrabber()
cam = ofTexture()
previewOpacity = 0

// output img size
captureW = OUTPUT_W
captureH = OUTPUT_H

// switchs
preview = false		// info + webcam
presencia = false		// presence
grabar = false		// recording

// time variables
wait = 250			// wait between shots

// font variablesfnt = ofTrueTypeFont()
fntSize = 14
fntR = 255
fntG = 0
fntOpacity = 0

// sound variables
volume = 0.0

function setup()

	grabber:setDeviceID(1)						// input video declaration
	grabber:initGrabber(captureW, captureH)		// start video capture
	cam:allocate(captureW, captureH, GL_RGB)		// draw video capture (only in preview)
	cam:clear()

	// draw saved img
	setupImages(numImages)
    	loadImageLibrary(numImages)

end

function update()

	// update audio capture
	volume = gaGetVolume(0)

	// update video capture
	grabber:update()
	if grabber:isFrameNew() then
		cam = grabber:getTextureReference()
    	end

    	// loud sound starts recording
    	if volume > 0.9 and grabar == false then
		presencia = true
    		grabar = true
	end

    	// if clap or loud sound start recording and playing
    	if presencia then
    		previewOpacity = 0
    		if grabar and ofGetElapsedTimeMillis() > wait then
			_path = gaDataPath(string.format("images/export%i.png", currentImage))
			gaSaveFrame(_path, grabber:getTextureReference())

			if currentImage < numImages-1 then
			 	currentImage += 1
			else
				currentImage = 0
			end

			loadImageLibrary(numImages)
			ofResetElapsedTimeCounter()
		end
    	end

    	// stop playing on last img
	if currentImage >= numImages-1 then
		presencia = false
		grabar = false
		currentImage = 0
	end

end

function draw()
	gaBackground(0.0, 1.0)

	/* captured imgs */
	ofSetColor(255, 120)
   	images[currentImage]:draw(0, 0, captureW, captureH)

   	/* webcam */
	ofSetColor(255, previewOpacity)
	cam:draw(0, 0, OUTPUT_W, OUTPUT_H)

	/* text */
	if presencia == false then
		previewOpacity = 0
    		ofSetColor(255)
		fnt:loadFont(gaImportFile("DINBlackAlternate.ttf"), 50, false, false)
		fnt:drawString(string.format("CLAP TO START"), 130, OUTPUT_H/2-30)
		fnt:drawString(string.format("take your time"), 160, OUTPUT_H/2+100)
    	end

	/* info */
	ofSetColor(255, fntOpacity)
	fnt:loadFont(gaImportFile("DINBlackAlternate.ttf"), fntSize, false, false)

	fnt:drawString(string.format("PREVIEW", preview), 10, OUTPUT_H-168)
	fnt:drawString(string.format("[p]", preview), fntSize*10, OUTPUT_H-168)

	fnt:drawString(string.format("VOLUME", volume), 10, OUTPUT_H-146)
	fnt:drawString(string.format("%f", volume), fntSize*10, OUTPUT_H-146)

	fnt:drawString(string.format("PRESENCE", presencia), 10, OUTPUT_H-124)
	fnt:drawString(tostring(presencia), fntSize*10, OUTPUT_H-124)

	fnt:drawString(string.format("RECORDING", grabar), 10, OUTPUT_H-102)
	fnt:drawString(tostring(grabar), fntSize*10, OUTPUT_H-102)

	fnt:drawString(string.format("WAIT", wait), 10, OUTPUT_H-80)
	fnt:drawString(string.format("%i ms", wait), fntSize*10, OUTPUT_H-80)

	fnt:drawString(string.format("IMAGE", numImages), 10, OUTPUT_H-58)
	fnt:drawString(string.format("%i", currentImage+1), fntSize*10, OUTPUT_H-58)
	fnt:drawString(string.format("/%i", numImages), fntSize*12, OUTPUT_H-58)

end

function keyReleased()

	if grabar then					// play loop
		setupImages(numImages)
		loadImageLibrary(numImages)
		currentImage = 0
	elseif grabar == false then			// stop loop and back to first img
		currentImage = 0
	end

	/* preview info and webcam */
	if gaKey() == string.byte('p') and preview then
		previewOpacity = 0
		fntOpacity = 0
		preview = false
		gaLog(string.format("preview off"))
	elseif gaKey() == string.byte('p') and preview == false then
		previewOpacity = 0
		fntOpacity = 255
		preview = true
		gaLog(string.format("preview on"))
	end

end