-- Lesson 22:  Into 3D.  The finished script, exactly as the lesson ends.

local turnLeft  = false
local turnRight = false
local tiltUp    = false
local tiltDown  = false

sceneEnable(true)
sceneSetBackground(18, 20, 34)
sceneSetAmbient(35, 35, 45)

local paint = materialNew()
materialSetColor(paint, 215, 95, 60)
materialSetRoughness(paint, 0.6)

local box = nodeNew()
nodeSetMesh(box, meshBox(2, 2, 2), paint)

local sun = lightNew(LIGHT_DIRECTIONAL)
nodeSetPosition(sun, 4, 6, 5)
nodeLookAt(sun, 0, 0, 0)

local camera = nodeNew()
nodeSetPosition(camera, 0, 2, 7)
nodeLookAt(camera, 0, 0, 0)
cameraSet(camera)
cameraSetPerspective(60, 0.1, 100)


function onInputPressed(what)
    if what == SWITCH_LEFT then
        turnLeft = true
    elseif what == SWITCH_RIGHT then
        turnRight = true
    elseif what == SWITCH_UP then
        tiltUp = true
    elseif what == SWITCH_DOWN then
        tiltDown = true
    end
end


function onInputReleased(what)
    if what == SWITCH_LEFT then
        turnLeft = false
    elseif what == SWITCH_RIGHT then
        turnRight = false
    elseif what == SWITCH_UP then
        tiltUp = false
    elseif what == SWITCH_DOWN then
        tiltDown = false
    end
end


function onOverlayUpdate()
    if turnLeft then
        nodeRotate(box, 0, -1.5, 0)
    end
    if turnRight then
        nodeRotate(box, 0, 1.5, 0)
    end
    if tiltUp then
        nodeRotate(box, -1.5, 0, 0)
    end
    if tiltDown then
        nodeRotate(box, 1.5, 0, 0)
    end

    local pitch, yaw = nodeGetRotation(box)

    overlayClear()
    overlayPrint(2, 2, "Arrow keys turn the box.")
    overlayPrint(2, 4, "yaw " .. math.floor(yaw) .. "  pitch " .. math.floor(pitch))
    return OVERLAY_UPDATED
end