fpsgesture.myo

scriptId = 'com.mhacksv.fpsgesture'
scriptTitle = "FPS Gesture"
scriptDetailsUrl = ""

centerPitch = 0
centerYaw = 0
PITCHSPACE = .7
YAWSPACE = .5
MELEEMINSPEED = 300

BUTTONPUSHED = false
BUTTONMIDDLE = false
BUTTONRIGHT = false
MELEETRUE = false

function onPoseEdge(pose, edge)
	myo.debug("onPoseEdge: " .. pose .. ": " .. edge)
	pose = swapWave(pose)
	if(edge == "on") then
		if (pose == "waveOut") then
			onWaveOut()	
		elseif (pose == "waveIn") then
			onWaveIn()
		elseif (pose == "fist") then
			onFist()
		elseif (pose == "fingersSpread") then
			onFingersSpread()	
		end
	end
end

function onWaveOut()
	myo.debug("Switch down")
	myo.keyboard("e", "press")
end

function onWaveIn()
	myo.debug("Switch up")
	myo.keyboard("q", "press")
end

function onFist()
	myo.debug("Pills")
	myo.keyboard("4", "press")
end

function onFingersSpread()
	myo.debug("Throwable")
	myo.keyboard("5", "press")
end

function swapWave(pose) -- inverts wave if on left arm
	if myo.getArm() == "left" then
		if pose == "waveIn" then
			pose = "waveOut"
		elseif pose == "waveOut" then
			pose = "waveIn"
		end
	end
	return pose
end

function getMyoRollDegrees() --along the arm, pos= cw from user perspective
    return math.deg(myo.getRoll())
end

function getMyoPitchDegrees() --up down, pos = up movement
    return math.deg(myo.getPitch())
end

function getMyoYawDegrees() -- left right, pos = to the right
    return math.deg(myo.getYaw())
end

function center()
	centerPitch = myo.getPitch()
	myo.debug("Centred")
end

function calcDeltaPitch(currentPitch, centerPitch)
    local deltaPitch = currentPitch - centerPitch
    
    if (deltaPitch > 3.14) then
        deltaPitch = deltaPitch- 6.28
    elseif(deltaPitch < -3.14) then
        deltaPitch = deltaPitch + 6.28
    end
    return deltaPitch
end

function calcDeltaYaw(currentYaw, centerYaw)
    local deltaYaw = currentYaw - centerYaw
    
    if (deltaYaw > 3.14) then
        deltaYaw = deltaYaw- 6.28
    elseif(deltaYaw < -3.14) then
        deltaYaw = deltaYaw + 6.28
    end
    return deltaYaw
end

function switchWeapons()
	if(not BUTTONPUSHEDQ) then
		myo.keyboard("q", "down")
		myo.keyboard("q", "up")
	end
	BUTTONPUSHEDQ = true
end

function aimDownSights()
	if(not BUTTONMIDDLE) then 
		myo.mouse("center", "down")
		myo.mouse("center", "up")
		BUTTONMIDDLE = true;
		myo.debug("aim down")
	end
end

function hipFire()
	if(BUTTONMIDDLE) then
		myo.mouse("center", "down")
		myo.mouse("center", "up")
		BUTTONMIDDLE=false
		myo.debug("hipfire")
	end
	if(BUTTONPUSHEDQ) then
		BUTTONPUSHEDQ=false
	end
end

function melee()
	if(not BUTTONRIGHT) then
		myo.mouse("right", "down")
		myo.mouse("right", "up")
		BUTTONRIGHT = true
	end
end

function meleeReset()
	BUTTONRIGHT=false
end

----------Required Callback Functions-------------

function activeAppName()
	return "FPS Game"
end

function onForegroundWindowChange(app, title)---------------NEEDS TO CHANGE
	myo.debug("onForegroundWindowChange: " .. app .. ", " .. title)
	--myo.setLockingPolicy("none")
	local truth = platform == "Windows" and app == "left4dead2.exe"
	if(truth) then
		center()
	end
	return truth
end

function onActiveChange(isActive)
	if (isActive) then
		--do something if the script is activated
	end
end

function onUnlock()
	--do something when the myo is unlocked (double tap)
end

function onLock()
	--do something when the myp is locked (time runs out)
end

function onPeriodic()  
	local x,y,z = myo.getGyro()
	if (z>MELEEMINSPEED or z< -MELEEMINSPEED) then
    	myo.debug("melee" .. ", " .. y .. ", " .. z)
    	melee()
    	MELEETRUE=true
    else 
    	meleeReset()
    end

    if (not MELEETRUE) then
    	local currentPitch = myo.getPitch()
    	local deltaPitch = calcDeltaPitch(currentPitch, centerPitch)
    
    	if (deltaPitch < -PITCHSPACE) then
    	    switchWeapons()
    	elseif (deltaPitch > PITCHSPACE) then
    		myo.debug("aimdown")
    	    ---aimDownSights()
    	else
        	hipFire()
		end
    end
    MELEETRUE=false
end