AWSOME! Did you start this for my competition? This is amazing. You should change the subject to competition to enter it into the competition :-D

Where are da bombs? - Oh, this IS da bombs!

Great work!!!

Sort of. I was fiddling with the gauge and chart classes I made earlier and came up with the artificial horizon display. That got me started on the other controls -- the clipped numbers for the altimeter, the speedometer dial. And of course, once I had instruments, I had to have a plane.

I think it would be quite possible to do a decent job on a POV 3D flight sim, but I didn't think I could get it together by the 18th.

Good. You put it in the competition category. By the way, it's almost as cool as the Google Earth flight simulator>

Great work! Are you using sprites for the instruments or drawing from primitives? They look really good.

Yeah the instruments are great. I love the analogue numerical dial.

Also like the fields scrolling past. Gives a real sense of scale.

Thanks. The instruments are drawn from primitives. As has happened so many times with Codea, I started off with "gee, I'll do it this way until the performance sucks" then never had to change,

And the code, in a few easy pieces. You'll quickly see that 1) there's a lot of duplicated code among gauges that really should be in one piece, 2) there are a lot of numbers in there meaning that as-is the code WILL NOT work on another screen size, 3) I'm still fighting to keep things straight with multiple uses of rotation and translation. I'll keep knocking those things around. In the meantime, here's the first draft.

Deleted -- see new version below

Deleted -- see new version below

Deleted -- see new version below

Deleted -- see new version below

Deleted -- see new version below

For what it's worth, my record flight time is 630, but I expect it's possible to keep flying nearly infinitely if you manage your fuel and build up altitude when possible.

Have fun.

Thank you. You always make incredible things.

I already pasted the code but I got an error at line 79 in main program about "compare number with nil".

78   i = readLocalData("PlaneCrazyBest")
79      if i >0 then

To solve the error, I mark the line 78 as comment and it works.

78   --i = readLocalData("PlaneCrazyBest")

EDIT: Another solution by not marking as a comment in order to read the highest score

     i = readLocalData("PlaneCrazyBest") or 0

I'm definitely going to try this one out. After working on my shape explorer, I had the idea of using the iPad itself as a control device, measuring the pitch and yaw, but I got too busy to pursue the idea. So I'm excited to see someone's done it.

oh wow! i cant find my answer in the code so... a very bisic question @mark :

how do you basicly do the map-drawings (not the little map, the big map where the plane is drawn on)? by drawing simply everything and translating it by the plane position? or are the out-of-screen-elements not drawn? I am interested in this me because i tried something comparable...

@sanit -- thanks. I inserted that line for reading the high score, then never went back to test what happened if it wasn't there.

@Maxiking16 -- I'm using meshes, with rotate, translante, and scale (although I think scale is commeted out in this version) to adjust to the plane's position. The big map itself is actually a stack of meshes -- one for the square "ground" rects, one for the tree textures. one for runways. Then on top of that are some features drawn with primitives, like the details on the runway. Then there's the plane, which is actually not quite at the center of rotation because I wanted to give you more space to see "ahead" than you'd get with the plane at the center of the screen. And the sprite for the plane itself is rotated 180 degrees. So I frequently get lost in mental fog thinking "okay, so the plane is heading north northeast. Now... what do I do with the meshes, and why is the mini map upside down?" I can tell you that, compared to iterating through arrays of sprites or primitives, meshes draw MUCH faster.

@Andrew_Stacey You should see the original test. Not only did I use the iPad for pitch and yaw, I used acceleration for the throttle. So to make the plane go faster you had to actually get up and move, and if you slowed down the plane slowed down. I may put a switch in there to turn that feature back on, but it does make it hard to play the game without an open space the size of a football field.

Please do, I love the acceleration idea :)

Ok, here we go with version 0.2.

1) This one should work much better with devices of different resolution. 2) The terrain is more varied and colorful, with 2000 bushes, 3500 trees, "sandy" areas, rocks, water, etc. 3) Gameplay balance has been tuned up, so that planning your next target, adjusting the throttle, and careful attention to altitude and speed pay off in prolonged play. (I hit 900... Beat that.) 4) That crazy acceleration control mode is in there for people who have a parking lot handy and don't mind people seeing them run around with an iPad held out at chest level can give it a go.

And... I think that's about it. If someone can test performance on an iPad 1 that would be great. I kept cranking up the number of ground features until the iPad 2 started to stutter, then backed off a few thousand items. I can't tell you if an iPad 1 would be silk or a slide show.

I deleted the code above because there was some rearranging. If no one spots anything serious in this version, I'm counting this "official" and working on updates of orb-bits and Sprite Invaders between now and Saturday. Thanks.

Altimeter = class()

function Altimeter:init(x, y, r)
    -- you can accept and set parameters here
    self.x = x
    self.y = y
    self.r = r
    self.val = 0
end

function Altimeter:draw()
    local x, y, r, one, ten, hundred, thousand
    x = self.x
    y = self.y
    r = self.r
    if self.val > 9999 then self.val = 9999 end
    font("ArialMT")
    pushMatrix()
    pushStyle()
    translate(x, y)
    fill(61, 61, 61, 255)
    stroke(84, 84, 84, 255)
    rect(-r/2-5, -r/2-5, r+10, r+10)
    fill(175, 129, 77, 255)
    ellipse(-r/2+5, -r/2+5, 10)
    ellipse(-r/2+5, r/2-5, 10)
    ellipse(r/2-5, -r/2+5, 10)
    ellipse(r/2-5, r/2-5, 10)
    strokeWidth(3)
    fill(176, 176, 176, 255)
    stroke(219, 191, 149, 255)
    ellipse(0, 0, r)
    stroke(141, 139, 139, 255)
    ellipse(0,0,r-10)
    strokeWidth(1)
    w = r / 170
    scale(w)
    fill(76, 76, 76, 255)
    rect(- 65, - 25, 130, 50)
    fontSize(48)
    fill(255, 255, 255, 255)
    rect(30,-20,30,40)
    fill(0, 0, 0, 255)
    text("0", 44, 0)
    rect(-1,-20,30,40)
    rect(-32,-20,30,40)
    rect(-63,-20,30,40)
    fill(255, 255, 255, 255)
    thousand = math.floor(self.val / 1000)
    hundred = math.floor((self.val - thousand * 1000) / 100)
    ten = math.floor((self.val - thousand * 1000 - hundred * 100) / 10)
    one = math.fmod(self.val, 10)
    -- tens
    clip(self.x - 63, self.y - 20 * w, self.x - 33, 40 * w)
    text(ten, 12, -one * 4 )
    s = ten + 1
    s = string.sub(s, string.len(s), string.len(s))
    text(s, 12, -one * 4 + 40)
    -- hundreds
    clip(self.x - 32, self.y - 20 * w, self.x + 1, 40 * w)
    text(hundred, -18, -ten * 4 )
    s = hundred + 1
    s = string.sub(s, string.len(s), string.len(s))
    text(s, -18, -ten * 4 + 40)
    -- thousand
    clip(self.x - 63, self.y - 20 * w, self.x + 1, 40 * w)
    text(thousand, -50, -hundred * 4 )
    s = thousand + 1
    s = string.sub(s, string.len(s), string.len(s))
    text(s, -50, -hundred * 4 + 40)
    noClip()
    fontSize(12)
    fill(0, 0, 0, 255)
    text("Altitude", 0, 40)
    text("Feet", 0, -40)
    popStyle()
    popMatrix()
end

Compass = class()

function Compass:init(x, y)
    self.x = x
    self.y = y
    self.w = WIDTH * 0.22
end

function Compass:draw()
    pushMatrix()
    pushStyle()
    translate(self.x, self.y)
    fill(61, 61, 61, 255)
    stroke(84, 84, 84, 255)
    rect(0, 0, self.w, 40)
    ellipse(0, 20, 20)
    ellipse(self.w, 20, 20)
    strokeWidth(3)
    fill(192, 192, 192, 255)
    stroke(219, 191, 149, 255)
    rect(5, 20, self.w - 10, 18)
    fill(80, 80, 80, 255)
    ellipse(-2, 20, 8)
    ellipse(self.w + 2, 20, 8)
    font("CourierNewPS-BoldMT")
    fontSize(22)
    fill(104, 31, 31, 255)
    textMode(CENTER)
    textAlign(CENTER)
    text(math.floor(heading), self.w / 2, 27)
    font("Verdana")
    fontSize(14)
    fill(232, 218, 218, 255)
    text("Direction", self.w / 2, 10)
    popStyle()
    popMatrix()
end

Frame = class()

-- Frame 
-- ver. 1.0
-- a simple rectangle for holding controls.
-- ====================

function Frame:init(left, bottom, right, top)
    self.left = left
    self.right = right
    self.bottom = bottom
    self.top = top
end

function Frame:inset(dx, dy)
    self.left = self.left + dx
    self.right = self.right - dx
    self.bottom = self.bottom + dy
    self.top = self.top - dy
end

function Frame:offset(dx, dy)
    self.left = self.left + dx
    self.right = self.right + dx
    self.bottom = self.bottom + dy
    self.top = self.top + dy
end
    
function Frame:draw()
    pushStyle()
    rectMode(CORNERS)
    rect(self.left, self.bottom, self.right, self.top)
    popStyle()
end

function Frame:roundRect(r)
    pushStyle()
    insetPos = vec2(self.left + r,self.bottom + r)
    insetSize = vec2(self:width() - 2 * r,self:height() - 2 * r)

    rectMode(CORNER)
    rect(insetPos.x, insetPos.y, insetSize.x, insetSize.y)

    if r > 0 then
        smooth()
        lineCapMode(ROUND)
        strokeWidth(r * 2)

        line(insetPos.x, insetPos.y, 
             insetPos.x + insetSize.x, insetPos.y)
        line(insetPos.x, insetPos.y,
             insetPos.x, insetPos.y + insetSize.y)
        line(insetPos.x, insetPos.y + insetSize.y,
             insetPos.x + insetSize.x, insetPos.y + insetSize.y)
        line(insetPos.x + insetSize.x, insetPos.y,
             insetPos.x + insetSize.x, insetPos.y + insetSize.y)            
    end
    popStyle()
end

function Frame:gloss(baseclr)
    local i, t, r, g, b, y
    pushStyle()
    if baseclr == nil then baseclr = color(194, 194, 194, 255) end
    fill(baseclr)
    rectMode(CORNERS)
    rect(self.left, self.bottom, self.right, self.top)
    r = baseclr.r
    g = baseclr.g
    b = baseclr.b
    for i = 1 , self:height() / 2 do
        r = r - 1
        g = g - 1
        b = b - 1
        stroke(r, g, b, 255)
        y = (self.bottom + self.top) / 2
        line(self.left, y + i, self.right, y + i)
        line(self.left, y - i, self.right, y - i)
    end
    popStyle()
end

function Frame:shade(base, step)
    pushStyle()
    strokeWidth(1)
    for y = self.bottom, self.top do
        i = self.top - y
        stroke(base - i * step, base - i * step, base - i * step, 255)
        line(self.left, y, self.right, y)
    end
    popStyle()
end

function Frame:touched(touch)
    if touch.x >= self.left and touch.x <= self.right then
        if touch.y >= self.bottom and touch.y <= self.top then
            return true
        end
    end
    return false
end

function Frame:ptIn(x, y)
    if x >= self.left and x <= self.right then
        if y >= self.bottom and y <= self.top then
            return true
        end
    end
    return false
end

function Frame:width()
    return self.right - self.left
end

function Frame:height()
    return self.top - self.bottom
end

function Frame:midX()
    return (self.left + self.right) / 2
end
    
function Frame:midY()
    return (self.bottom + self.top) / 2
end

FlightTimer = class()

function FlightTimer:init(x, y, title)
    self.x = x
    self.y = y
    self.w = WIDTH * 0.22
    self.title = title
    self.val = 0
end

function FlightTimer:draw(alt)
    pushMatrix()
    pushStyle()
    if alt > 0 then self.val = self.val + 0.03 end
    translate(self.x, self.y)
    
    fill(61, 61, 61, 255)
    stroke(84, 84, 84, 255)
    rect(0, 0, self.w, 40)
    ellipse(0, 20, 20)
    ellipse(self.w, 20, 20)
    strokeWidth(3)
    fill(192, 192, 192, 255)
    stroke(219, 191, 149, 255)
    rect(5, 20, self.w-10, 18)
    fill(80, 80, 80, 255)
    ellipse(-2, 20, 8)
    ellipse(self.w+2, 20, 8)
    font("CourierNewPS-BoldMT")
    fontSize(22)
    fill(104, 31, 31, 255)
    textMode(CENTER)
    textAlign(CENTER)
    text(math.floor(self.val), self.w/2, 27)
    font("Verdana")
    fontSize(14)
    fill(232, 218, 218, 255)
    text(self.title, self.w/2, 10)
    
    popStyle()
    popMatrix()
end

Horizon = class()

function Horizon:init(x, y, r)
    self.x = x
    self.y = y
    self.r = r
    self.roll=0
    self.pitch=0
end

function Horizon:draw()
    local x, y, r
    x = self.x
    y = self.y
    r = self.r
    pushMatrix()
    pushStyle()
    translate(x, y)
    fill(61, 61, 61, 255)
    stroke(84, 84, 84, 255)
    rect(-r/2-5, -r/2-5, r+10, r+10)
    noStroke()
    fill(19, 19, 19, 255)
    ellipse(-r/2+5, -r/2+5, 10)
    ellipse(-r/2+5, r/2-5, 10)
    ellipse(r/2-5, -r/2+5, 10)
    ellipse(r/2-5, r/2-5, 10)
    strokeWidth(3)
    fill(176, 176, 176, 255)
    stroke(219, 191, 149, 255)
    ellipse(0, 0, r)
    stroke(141, 139, 139, 255)
    ellipse(0,0,r-10)
    strokeWidth(3)
    stroke(98, 98, 98, 255)
    for i=0,6 do
        line(r/2-20,0,r/2-35,0)
        rotate(30)
    end
    rotate(-210)
    font("ArialMT")
    textAlign(CENTER)
    fill(0, 0, 0, 255)
    fontSize(12)
    text("Horizon", 0, 25)
    self.roll = Gravity.x * 90
    self.pitch = Gravity.y 
    rotate(self.roll)
    strokeWidth(10)
    stroke(0, 206, 255, 255)
    x = r / 2 * ( 1 - math.abs(self.pitch / 2.4)) - 5
    y = r / 2 * (self.pitch * 0.8)
    line(0,y+2,-x,y+2)
    line(0,y+2,x,y+2)
    stroke(157, 124, 86, 255)
    line(0,y-3,-x,y-3)
    line(0,y-3,x,y-3)
    stroke(175, 148, 63, 255)
    fill(127, 127, 127, 255)
    rotate(-self.roll)
    stroke(230, 230, 230, 113)
    line(0,0,-r/4,-r/4)
    line(0,0,r/4,-r/4)
    line(0,0,0,-r/4)
    stroke(255, 102, 0, 255)
    line(-r/4,0, -20,0)
    line(r/4,0, 20,0)
    popStyle()
    popMatrix()
end

-- Main
--
-- Plane Crazy 0.2 --

supportedOrientations(PORTRAIT)
displayMode(FULLSCREEN)

function setup()
    local i
    -- targets
    target = {}
    for i = 1, 3 do newTarget(i) end
    -- instrument panel
    w = (WIDTH - 80) / 4
    panelTop = w + 130
    throttle = Throttle(w * 3 + 100, 60, WIDTH - 30, panelTop - 10)
    horizon = Horizon(w * 3 - w/2 + 50, panelTop - w/ 2 - 10, w)
    altimeter = Altimeter(w * 2 - w/2 + 30, panelTop - w/ 2 - 10, w)
    speedo = Speedometer(w - w/2 + 10, panelTop - w/ 2 - 10, w)
    compass = Compass( 10, 60)
    flightTimer = FlightTimer(w + 30, 60, "Flight Time")
    bestFlightTimer = FlightTimer(w * 2 + 50, 60, "Best Flight Time")
    map = Map(WIDTH-200, HEIGHT-200, 190, 190)
    logFrame = Frame(WIDTH - 145, panelTop + 10, 
    WIDTH - 10, panelTop + 65)
    -- meshes used for ground
    trees = mesh()
    trees2 = mesh()
    ground = mesh()
    mud = mesh()
    bushes = mesh()
    rocks = mesh()
    createMapElements()

    -- state of game variables
    status = 1
    showLog = false
    stall = false
    oldTouch = nil
    accelMode = false
    
    -- button for log book check box
    accelFrame = Frame(WIDTH / 2 + 10, HEIGHT - 433, 
    WIDTH / 2 + 35, HEIGHT - 395)
    
    mapFrame = Frame(0, panelTop, WIDTH, HEIGHT)
    
    -- read high score
    i = readLocalData("PlaneCrazyBest")
    if i ~= nil then
        bestFlightTimer.val = i
    end
    
    -- Start new game
    newGame()
end

function drawPlane()
    local x, y
    pushMatrix()
    translate(WIDTH/2, HEIGHT/2-100)
    rotate(180 + spinTimer)
    x=70
    if altimeter.val < 10 then y = 70 else
        y=70-math.abs(50*horizon.pitch)
    end
    if crashed then
        sprite("Tyrian Remastered:Explosion Huge", 0, 0, 120, 120)
        timer = 0
        if flightTimer.val > bestFlightTimer.val then
            bestFlightTimer.val = flightTimer.val
            saveLocalData("PlaneCrazyBest", bestFlightTimer.val)
        end
    else
        tint(56, 56, 56, 37)
        sprite("Tyrian Remastered:Enemy Ship B", 0, 
        altimeter.val/2, 70,y)
        noTint()
        if horizon.roll < -20 then
            sprite("Tyrian Remastered:Enemy Ship B R1", 0, 0, 70,y)
        elseif horizon.roll > 20 then
            sprite("Tyrian Remastered:Enemy Ship B L1", 0, 0, 70,y)
        else
            sprite("Tyrian Remastered:Enemy Ship B", 0, 0, 70,y)
        end
    end
    popMatrix()
end

function drawMap()
    -- draw the map features
    pushStyle()
    pushMatrix()
    rotate(heading)
    translate(east + WIDTH / 2, north + HEIGHT / 2)
    s = 1 - (altimeter.val / 5000)
    -- scaling disabled. .
    --scale(s)
    line(-10000, 0, 10000, 0)
    line(0, -10000, 0, 10000)
    ground:draw()
    mud:draw()
    rocks:draw()
    bushes:draw()
    trees:draw()
    trees2:draw()
    runway:draw()
    -- runway details
    stroke(213, 193, 129, 255)
    strokeWidth(5)
    for i=1,10 do
        line(0, i * 100 - 400, 0, i * 100 - 350)
    end
    stroke(0, 138, 255, 255)
    line(-80, 800, 80, 800)
    font("Futura-CondensedExtraBold")
    fill(151, 151, 151, 135)
    fontSize(96)
    text("0 0", 0, -200)
    -- targets
    noFill()
    strokeWidth(20)
    stroke(255, 240, 0, 255)
    for i=1,#target do
        if target[i].z == 500 then
            stroke(255, 36, 0, 104)
        elseif target[i].z == 1000 then
            stroke(253, 224, 3, 255)
        else
            stroke(0, 255, 253, 255)
        end
        ellipse(target[i].x, target[i].y, target[i].z)
        line(target[i].x - target[i].z / 3.2, 
        target[i].y - target[i].z / 3.2, 
        target[i].x + target[i].z / 3.2, 
        target[i].y + target[i].z / 3.2)
        line(target[i].x - target[i].z / 3.2, 
        target[i].y + target[i].z / 3.2, 
        target[i].x + target[i].z / 3.2, 
        target[i].y - target[i].z / 3.2)
    end
    popMatrix()
    -- intro screen if in intro mode
    if status == 1 then
        font("MarkerFelt-Wide")
        fontSize(222 * WIDTH / 768)
        fill(0, 0, 0, 123)
        text("Plane", WIDTH / 2, HEIGHT - 100)
        text("Crazy", WIDTH / 2, HEIGHT - 300)
        fill(255, 252, 0, 255)
        text("Plane", WIDTH / 2 - 10, HEIGHT - 90)
        text("Crazy", WIDTH / 2 - 10, HEIGHT - 290)
        fontSize(72 * WIDTH / 768)
        text("Touch here to begin", WIDTH /2, HEIGHT - 450)
    end
    popStyle()
end

function drawInstruments()
line(0, panelTop, WIDTH, panelTop)
    fill(89, 89, 89, 255)
    rect(0,0,WIDTH,panelTop)
    -- instruments
    horizon:draw()
    throttle:draw()
    altimeter:draw()
    speedo:draw()
    compass:draw()
    flightTimer:draw(altimeter.val)
    bestFlightTimer:draw(0)
end

function drawLogBook()
    -- pilot log book
    pushStyle()
    fill(0, 0, 0, 86)
    logFrame:draw()
    stroke(255, 230, 0, 255)
    strokeWidth(1)
    rect(logFrame.right - 75, logFrame.bottom + 5, 10, 10)
    fill(255, 230, 0, 255)
    fontSize(14)
    if accelMode then
        text("Accel. Mode", throttle.frame:midX(), 
        throttle.frame.bottom + 5)
    end
    fontSize(12)
    text("Pilot Log", logFrame.left + 100, logFrame.bottom + 10)
    font("HoeflerText-BlackItalic")
    fill(216, 216, 216, 142)
    noStroke()
    ellipse(logFrame.left + 30, logFrame.bottom + 28, 44)
    fill(0, 0, 0, 112)
    fontSize(44)
    text("i", logFrame.left + 30, logFrame.bottom + 22)
    popStyle()
end

function draw()
    noSmooth()
    background(31, 89, 36, 255)
    
    drawMap()
    drawPlane()
    drawInstruments()
    if status > 1 and not crashed then calcPosition() end
    if status > 1 then map:draw(east, north, target) end
    drawLogBook()

    if showLog then
        showInstructions()
    end
    
    -- touch handle
    if not accelMode then
        throttle:touched(CurrentTouch)
    else
        throttle.val = throttle.val + UserAcceleration.y * 2
        if throttle.val > 100 then throttle.val = 100 
        elseif throttle.val < 0 then throttle.val = 0 end
    end
        
    -- check targets
    for i = 1, #target do
        if math.abs(north + target[i].y + 300) < target[i].z / 1.5
        and math.abs(east + target[i].x) < target[i].z / 1.5 then
            if target[i].z == 500 then
                timer = timer + 50
            elseif target[i].z == 1000 then
                timer = timer + 40
            else
                timer = timer + 25
            end
            sound(SOUND_POWERUP, 26628)
            newTarget(i)
        end
    end
    
    if mapFrame:touched(CurrentTouch)  then
        if status == 1 and oldTouch ~= CurrentTouch.x then 
            status = 2
            throttle.val = 0
            newGame()
            
        elseif showLog and oldTouch ~= CurrentTouch.x 
            and CurrentTouch.state == BEGAN then
            if accelFrame:touched(CurrentTouch) then 
                accelMode = not accelMode
            else
                showLog = false
            end
        end
        
    end
    
    if logFrame:touched(CurrentTouch) then
        if oldTouch ~= CurrentTouch.x then
            showLog = true
        end
    end
    
    oldTouch = CurrentTouch.x
end

-- minimap for Plane Crazy

Map = class()

function Map:init(x, y, w, h)
    self.x = x
    self.y = y
    self.w = w
    self.h = h
end

function Map:convert(east, north)
    x = (self.w + self.x) - (east+20000) * self.w/40000
    y = (self.y + self.h) -(north+20000) * self.h/40000
    return x, y
end

function Map:draw(east, north, target)
    local x, y, i
    pushStyle()
    fill(195, 195, 195, 155)
    strokeWidth(2)
    stroke(94, 94, 94, 131)
    rect(self.x, self.y, self.w, self.h)
    stroke(235, 6, 6, 255)
    x, y = self:convert(east, north)
    
    if x < self.x then x= self.x end
    if x > self.x + self.w then x= self.x + self.w end
    if y < self.y then y= self.y end
    if y > self.y + self.h then y= self.y + self.h end
    line(x-2,y,x+2,y)
    line(x,y-2,x,y+2)
    stroke(127, 127, 127, 255)
    x, y = self:convert(0, 0)
    fill(126, 126, 126, 255)
    rect(x, y, 1, 10)
    
    fill(61, 61, 61, 255)
    fontSize(18)
    text("Map", self.x + 25, self.y + 15)
    noFill()
    for i=1,#target do
        if target[i].z == 500 then
            stroke(255, 36, 0, 104)
        elseif target[i].z == 1000 then
            stroke(253, 224, 3, 255)
        else
            stroke(50, 83, 239, 255)
        end
        x, y = self:convert(-target[i].x, -target[i].y)
        ellipse(x, y, target[i].z / 100)
    end
    popStyle()
end

-- Misc 

function newGame()
    spinTimer = 0
    soundTimer = 0
    timer = 200
    crashed = false
    east = 0
    north = 250
    heading = 0
    roll = 0
    pitch = 0
    speed = 0
    gas = 50
    altimeter.val = 0
    flightTimer.val = 0
end

function createMapElements()
    local i
    trees.texture ="Planet Cute:Tree Short"
    trees2.texture ="Planet Cute:Tree Ugly"
    trees.setColors(255,255,255,255)
    mud.texture = "Small World:Dirt Patch"
    bushes.texture = "Small World:Bush"
    rocks.texture = "Tyrian Remastered:Rock 3"

    for i = 1, 2000 do
        bushes:addRect(math.random(20000) - 10000,
        math.random(9800) - 10000, 32, 27)
    end
    for i = 1, 500 do
        mud:addRect(math.random(20000) - 10000,
        math.random(4000) - 10000, 130, 100)
    end
  
    for i = 1, 1000 do
        trees:addRect(math.random(10000) - 10200,
        math.random(5800), 100, 171)
        trees:addRect(math.random(10000) + 200,
        math.random(5800), 100, 171)
    end
    for i = 1, 1500 do
        trees2:addRect(math.random(20000) - 10000,
        math.random(4000) + 5600 , 100, 171)
    end
    
    i =0
   
    for x = 1, 100 do
        for y = 1, 100 do
            ground:addRect(x*500 - 25000,y*500-25000,500,500)
            i = i + 1
            if y < 48 and y > 40 then
                ground:setRectColor(i, 88+math.random(64), 
                154+math.random(64),  33)
            elseif y <= 40 then
                ground:setRectColor(i, 144+math.random(64), 
                144+math.random(64),  33)
            elseif y == 70 then 
                ground:setRectColor(i, 155+math.random(64), 
                154+math.random(55),  122)
            elseif y > 70 then
                ground:setRectColor(i, 22, 22,  155+math.random(55))
            elseif x < 20 and y < 30 then
                ground:setRectColor(i, 100, 100 + math.random(40), 
                30, 255)
            elseif x > 50 and y < 15 then
                ground:setRectColor(i, 22, 22,  155+math.random(55))
            else
                ground:setRectColor(i, 22, 166+math.random(55),22)
            end
        end
    end
    
    for x = 1, 100 do
        y = 50 + math.random(2) - 1
        ground:setRectColor(5000 + i, 22, 22, 151+math.random(55))
    end

    runway = mesh()
    runway:addRect(0,0,200,2000)
    runway:setRectColor(1, 122, 122, 122)
end

function newTarget(i)
    local z
    z = math.floor(math.random(3) + 1) * 500
    target[i] = vec3( math.random(20000) - 10000, 
    math.random(20000) - 10000, z)
end

function calcPosition()
    -- direction
    if speedo.val > 10 then
        heading = heading + horizon.roll / 100
        if heading < 0 then heading = heading + 360 end
        if heading > 360 then heading = heading - 360 end
    end
    -- position
    north = north - math.cos(math.rad(heading)) * speedo.val/20
    if north > 25000 then north = -25000 
    elseif north < -25000 then north = 25000 end
    east = east - math.sin(math.rad(heading)) * speedo.val/20
    if east > 25000 then east = -25000 
    elseif east < -25000 then east = 25000 end
    -- altitude
    altimeter.val = altimeter.val - 0.1
    altimeter.val = altimeter.val - math.abs(horizon.roll) / 50
    altimeter.val = altimeter.val + (horizon.pitch * -speedo.val / 60)
    if speedo.val + horizon.pitch * 100 < 60 then
        stall= true
        if altimeter.val > 0 then
            altimeter.val = altimeter.val - 1
            spinTimer = spinTimer + 10
            sound(SOUND_JUMP, 40113)
        end
    else
        stall = false
        spinTimer = 0
    end
    if altimeter.val <= 0 then
        -- on ground
        -- check for landing / crash
        altimeter.val = 0
        if east < -200 or east > 200 or north > 2300 
        or north < -1300 then
            --big crash
            crashed = true
            timer = 0
            speedo.val = 0
            sound(SOUND_EXPLODE, 18933)
            status = 1
        else
        -- on runway
            if horizon.pitch < 0 then 
                speedo.val = speedo.val - 1 
                fontSize(22)
                text("Brakes Applied. Tilt forward to release.", 
                WIDTH / 2, 320)
            end
        end
    else
        -- in air
        speedo.val = speedo.val + horizon.pitch * 2
    end
    -- speed
    if timer > 0 then
        speedo.val = speedo.val + throttle.val / 100 
    else
        fontSize(22)
        text("Out of gas.", WIDTH / 2, 320)
    end
    
    if speedo.val < 0 then speedo.val=0 end
    if speedo.val > 222 then speedo.val = 220 end
    -- fuel
    timer = timer - throttle.val * 0.001
    if timer < 0 then timer = 0 end
    -- sound
    if timer > 0 and soundTimer + 0.1 < ElapsedTime then
        if throttle.val > 30 then
            sound(DATA, 
            "ZgNAFAA6Pz05PDxCIsyOvCq8qT4jd5g+JAA7fz9EREFCOz5F")
        elseif throttle.val > 0 then
            sound(DATA, 
            "ZgNAFw06Ozs5Pj5FmteWPa+b2j419Z8+JAA4f0FER0VCOz1I")
        end
        soundTimer = ElapsedTime
    end
    -- timer
    pushStyle()
    fill(165, 207, 223, 99)
    fontSize(96)
    textAlign(LEFT)
    textMode(CORNER)
    text(math.floor(timer), 20, 300)
    fill(223, 138, 138, 185)
    textMode(CENTER)
    textAlign(CENTER)
    font("MarkerFelt-Wide")
    if stall and altimeter.val > 10 then
        text("Stall Warning", WIDTH / 2, HEIGHT / 2)
    end
    popStyle()
end

-- Misc2
function showInstructions()
    local i
    pushStyle()
    fill(46, 45, 25, 255)
    rect(10, 315, WIDTH - 20, HEIGHT - 330)
    fill(219, 219, 219, 255)
    rect(20, 320, WIDTH - 40, HEIGHT - 340)
    stroke(67, 67, 67, 255)
    line(WIDTH / 2, 330, WIDTH / 2, HEIGHT - 50)
    textAlign(LEFT)
    textMode(CORNER)
    fontSize(24)
    fill(0, 0, 0, 255)
    font("HelveticaNeue-Bold")
    text("Log Book", 30, HEIGHT - 50)
    fill(23, 50, 167, 255)
    font("Noteworthy-Light")
    strokeWidth(1)
    for i = 1, 14 do
        line(40, HEIGHT - i * 43 - 50, 
        WIDTH / 2 - 10, HEIGHT - i * 43 - 50)
        line(WIDTH / 2 + 10, HEIGHT - i * 43 - 50, 
        WIDTH - 40, HEIGHT - i * 43 - 50)
    end
    fontSize(24 * WIDTH / 768)
    textWrapWidth(330 * WIDTH / 768)
    text("1. Tilt device left and right to change direction.", 
    40, HEIGHT - 142)
    text("2. Tilt device forward to dive and back to climb.", 
    40, HEIGHT - 227)
    text("3. Hold device flat for level flight.", 
    40, HEIGHT - 273)
    text("4. Tilt forward to release brakes on runway.", 
    40, HEIGHT - 355)
    text("5. If you try to climb too quickly you will"..
    " lose speed and stall.", 40, HEIGHT - 442)
    text("6. To recover from a stall tilt forward "..
    " and gain speed.", 40, HEIGHT - 528)
    text("7. It takes more power to hold altitude during "..
    " steeply banked turns.", 40, HEIGHT - 652)
    text("8. When the timer runs down, you're out of fuel. "..
    " ", WIDTH / 2 + 10, HEIGHT - 142)
    text("9. Fly to targets to get extra fuel. "..
    " ", WIDTH / 2 + 10, HEIGHT - 186)
    text("10. Smaller targets give more fuel. "..
    " ", WIDTH / 2 + 10, HEIGHT - 229)
    text("11. Ease off on the throttle to save fuel. "..
    " ", WIDTH / 2 + 10, HEIGHT - 315)
    text("12. Good luck!"..
    " ", WIDTH / 2 + 10, HEIGHT - 357)
    text("     Turn on control of throttle by acceleration. "..
    " Warning! Requires a lot of space and willingness"..
    " to look like an idiot.", WIDTH / 2 + 10, HEIGHT - 560)
    text("(c) 2012 by Mark Sumner"..
    " ", WIDTH / 2 + 60, HEIGHT - 659)
    stroke(0, 0, 0, 255)
    strokeWidth(2)
    fill(219, 219, 219, 255)
    accelFrame:draw()
    strokeWidth(5)
    stroke(31, 179, 22, 255)
    if accelMode then
        line(accelFrame.left, accelFrame:midY(), 
        accelFrame:midX(), accelFrame.bottom)
        line(accelFrame.right, accelFrame.top,
        accelFrame:midX(), accelFrame.bottom)
    end
    popStyle()
end

Speedometer = class()

function Speedometer:init(x, y, r)
    self.x = x
    self.y = y
    self.r = r
    self.val = 0
end

function Speedometer:draw()
    local x, y, r, s
    x = self.x
    y = self.y
    r = self.r
    if self.val > 270 then self.val = 270 end
    font("ArialMT")
    pushMatrix()
    pushStyle()
    translate(x, y)
    fill(61, 61, 61, 255)
    stroke(84, 84, 84, 255)
    rect(-r/2-5, -r/2-5, r+10, r+10)
    fill(19, 19, 19, 255)
    ellipse(-r/2+5, -r/2+5, 10)
    ellipse(-r/2+5, r/2-5, 10)
    ellipse(r/2-5, -r/2+5, 10)
    ellipse(r/2-5, r/2-5, 10)
    strokeWidth(3)
    fill(176, 176, 176, 255)
    stroke(219, 191, 149, 255)
    ellipse(0, 0, r)
    stroke(141, 139, 139, 255)
    ellipse(0,0,r-10)
    
    stroke(0, 0, 0, 255)
    noFill()
    strokeWidth(19)
    ellipse(0,0,r-50)
    stroke(248, 248, 248, 255)
    strokeWidth(13)
    ellipse(0,0,r-55)
    noStroke()
    fill(176, 176, 176, 255)
    if r > 160 then
    rect(-r/2+20,0,40,40)
    rect(-40,r/2-60,40,40)
    rect(-50,15,40,40)
    end
    stroke(0, 0, 0, 255)
    strokeWidth(1)
    rotate(180)
    fontSize(9)
    fill(0, 0, 0, 255)
    for i=0,27 do
        line(r/2-37,0,r/2-30,0)
        rotate(10)
        if i/2 == math.floor(i/2) then
        s = 260 - i * 10
        text(s, r/2-15, 0)
        end
    end
    rotate(-10)
    -- set needle
    rotate(-self.val)
    stroke(255, 0, 0, 255)
    strokeWidth(5)
    line(0,0,r/3,0)
    stroke(82, 82, 82, 255)
    strokeWidth(3)
    fill(90, 90, 90, 255)
    stroke(219, 191, 149, 255)
    ellipse(0, 0, 25)
    stroke(141, 139, 139, 255)
    ellipse(0,0,20)
    fill(0, 0, 0, 255)
    font("ArialMT")
    fontSize(12)
    popMatrix()
    text("Speed", self.x, self.y - 20)
    popStyle()
    
end

Throttle = class()

function Throttle:init(l, b, r, t)
    -- you can accept and set parameters here
    self.x = x
    self.frame = Frame(l, b, r, t)
    self.val = 0
end

function Throttle:draw()
    local dy, vy
    noStroke()
    self.frame:gloss( color(155, 155, 155, 255))
    pushMatrix()
    pushStyle()
    translate(self.frame.left, self.frame.bottom)
    
    -- base
    strokeWidth(3)
    stroke(127, 127, 127, 255)
    fill(92, 92, 92, 255)
    rect(0, self.frame:height() - 40, self.frame:width(), 40)
    stroke(167, 40, 23, 255)
    line(20, 20, self.frame:width() - 20, 20)
    stroke(35, 35, 35, 255)
    line(20, self.frame:height() / 2 , 
    50, self.frame:height() / 2)
    line(20, self.frame:height() / 2 + 20, 
    50, self.frame:height() /2 + 20)
    line(20, self.frame:height() / 2 - 20, 
    50, self.frame:height() /2 - 20)
    -- axis
    vy = 100 / (self.frame:height() - 40)
    dy = self.val / vy + 40
    noStroke()
    fill(51, 51, 51, 255)
    rect(self.frame:width()/2 - 15, self.frame:height()-40- dy, 5, dy)
    fill(127, 127, 127, 255)
    rect(self.frame:width()/2 - 10, self.frame:height()-40- dy, 10, dy)
    fill(165, 165, 165, 255)
    rect(self.frame:width()/2 - 0, self.frame:height()-40- dy, 15, dy)
    fill(78, 31, 31, 255)
    strokeWidth(1)
    
    rect(self.frame:width()/2-35, self.frame:height()-40- dy + 15,
     70, 20)
    fill(43, 43, 43, 255)
    rect(self.frame:width()/2-25, self.frame:height()-40- dy + 5,
     50, 10)
    rect(self.frame:width()/2-25, self.frame:height()-40- dy + 35,
     50, 10)
    -- knob
    
    fontSize(14)
    fill(0, 0, 0, 255)
    text("Throttle", self.frame:width()/2, self.frame:height() - 20)
    line(2, self.frame:height()-vy * 50 , 20,
    self.frame:height()-vy * 50)
    popStyle()
    popMatrix()
end

function Throttle:touched(t)
    local dy, vy
    if self.frame:touched(t) then
        dy = self.frame.top - 80 - t.y
        vy = 100 / (self.frame:height() - 40)
        self.val = dy * vy
    end
    if self.val < 0 then self.val = 0 end
end

My apologies on the length. I'm certain others here could have done it not just better, but more neatly and elegantly. But my coding style really hasn't changed since the invention of rocks.

@Mark - Thanks for the code! And by the way, your coding style isn't too bad. It's good enough that I can almost tell what it does without running it.

Will you add an objetive or mission? I like all those control and the ground flow, good job, congrats!

@jaurix originally I had several runways and had all the plane's trips require landing and stopping at those locations. But it was just too tough for starting off. Landing the plane successfully takes too much practice.

So I created the "fly to a target" bit as a warm up exercise. Then I... ran out of time.