-- Forge milestone 4, genre one:  racing.  The car is driven by held keys, the rival drives the
-- track of points on its own, a checkpoint is a trigger the car enters, and a lap is two of them.
dofile("Forge/AuthorCompile.singe")

local font = fontLoad("Singe/FreeSansBold.ttf", 18)

fontSelect(font)
fontQuality(FONT_QUALITY_BLENDED)

dofile(authorBuild("testScripts/author/racing.game", singeGetDataPath() .. "racing.singe"))

local gameUpdate = onOverlayUpdate
local frames     = 0
local shots      = 0
local topSpeed   = 0
local rivalStart = nil
local GIVE_UP    = 40


function onOverlayUpdate()
	local t     = authorTime()
	local car   = authorEntity("car")
	local rival = authorEntity("rival")
	local cx, cy, cz = authorPosition(car)
	local rx, ry, rz = authorPosition(rival)

	frames = frames + 1
	rivalStart = rivalStart or rz
	if frames == 2 then
		authorKeyDown(0, SCANCODE.UP.value)
	end
	topSpeed = math.max(topSpeed, car.vars.speed or 0)

	local r = gameUpdate()

	colorForeground(255, 255, 255, 255)
	fontPrint(12, 450, string.format("authored racing, %.1fs, car z %.1f speed %.1f, rival z %.1f, gate %d, laps %d", t, cz, car.vars.speed or 0, rz, AUTHOR_VARS.next, AUTHOR_VARS.laps))
	if (shots == 0 and t > 1) or (shots == 1 and AUTHOR_VARS.next == 2) or (shots == 2 and AUTHOR_VARS.laps > 0) then
		shots = shots + 1
		singeScreenshot()
	end
	if (AUTHOR_VARS.laps > 0 and t > 1) or (t > GIVE_UP) then
		debugPrint(string.format("RACE RESULT laps=%d next=%d topSpeed=%.1f carZ=%.1f rivalMoved=%.1f after=%.1fs", AUTHOR_VARS.laps, AUTHOR_VARS.next, topSpeed, cz, rivalStart - rz, t))
		if topSpeed < 3 then debugPrint("RACE FAIL the car never got going") end
		if AUTHOR_VARS.laps < 1 then debugPrint("RACE FAIL no lap was completed") end
		if rivalStart - rz < 5 then debugPrint("RACE FAIL the rival did not drive") end
		local hz = authorField(authorEntity("hover"), "z")

		debugPrint(string.format("RACE the hovercraft under thrust is at z %.1f (from 10);  the hinged bar is at y %.1f", hz, authorField(authorEntity("bar"), "y")))
		if hz > 8 then debugPrint("RACE FAIL the thrust did not move the hovercraft") end
		singeQuit()
	end

	return r
end