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---PRiZM ENDURO---
---Main.Lua---
-- global screen size constants
HEIGHT=216
WIDTH=384
bottomY = math.floor(HEIGHT *.21)
trackWidth = math.floor(WIDTH * .9) -- width of the track at the bottom
horizonY = math.floor(trackWidth * .55 + bottomY)
trackHeight = horizonY - bottomY
trackLength = 100 -- in meters
-- main objects
myCar = nil
cars = {}
day = nil
track = nil
-- various global variables
speed = 0 -- for showing to the user
location = 0 -- my location
maxPosition = -1000 -- the location relative to me where the front-most car is
lastCollisionT = -1000 -- last time i collided, for the penalty
gameTime = 0 -- for reporting to the user
startTime = 0 -- the time at which the game started
days = 1 -- which day we're on
carsToPassInit = 150 -- on day 1 we need this many
carsToPass = carsToPassInit -- how many cars to advance to the next day
gameOver = false
gameStarted = false -- whether the user has started the game
gamePaused = false
maxSpeed = 150
regularSpeed = 85
function setup()
track = Track()
day = Day()
myCar = Car(0,0,0)
myCar.speed = 120
end
print("Instructions:")
print("Press Shift to accelerate")
print("Press Alpha to break")
print("Press nothing to maintain speed")
print("Use Prizm D-pad to Steer")
print("F1 to Start")
function draw()
rectMode(CORNER)
ellipseMode(RADIUS)
speed = myCar.speed
------------- UPDATE GAME STATE ----------------
if not gameOver then
if not gameStarted or gamePaused then
stoppedUserInputs()
else
accelerating = runningUserInputs() -- start, left, right, brake, etc
-- move track around
turnTrack(gameTime,track)
-- move the day forward in time
day:updateMode(gameTime)
if gameStarted then
gameTime = ElapsedTime - startTime
location = location + DeltaTime*myCar.speed/100
spawnNewCars()
myCar:updateTireState()
day:updateFogEnd(myCar.speed)
end
-- if we're turning then apply the centrifugal force
centrifugal = track:centrifugal()
centrifugal = centrifugal * myCar.speed / 150
myCar.x = myCar.x + centrifugal/100
day:moveX(centrifugal*7)
collided = checkForCollisions()
moveCars()
end
end
--------------- DRAW ---------------
-- field, tracks, sky, controls, etc
drawBackground()
--draw all cars
myCar:draw(track,day)
for i,c in ipairs(cars) do
if c.y > 0 and c.y <= .9*trackLength and c.real then
c:draw(track,day)
end
end
day:drawFog() -- has to be drawn last
drawPauseButton()
drawUserFeedback(accelerating,collided) -- userfedback at the bottom of the screen
end
function moveCars()
maxPosition = -1000
for i,c in ipairs(cars) do
change = -DeltaTime*(myCar.speed-c.speed)/1.3
beforeY = c.y
c.y = c.y + change
-- count carsPassed
if c.real then
if c.y<0 and beforeY>0 and not day.won then carsToPass = carsToPass - 1 end
if c.y>0 and beforeY<0 and not day.won then carsToPass = carsToPass + 1 end
end
if carsToPass == 0 and not day.won then
day.won = true
print("Achievement unlocked: Day", days)
end
-- remove cars
-- avoid collisions from the back by removing cars
if c.y>0 and beforeY<0 and collidesWithMyCar(c) then
table.remove(cars,i)
-- remove cars that are too far
elseif c.y < -5 * trackLength or c.y > 2 * trackLength then
table.remove(cars,i)
else c:updateTireState() end
maxPosition = math.max(maxPosition,c.y)
end
end
--[[ ------------------------------------------------------------
Car.lua
--]] ------------------------------------------------------------
dayCarColors = {
color(255, 0, 0, 255),
color(0, 35, 255, 255),
color(11, 255, 0, 255),
color(255, 245, 0, 255)
}
nightCarColors = {
color(255, 0, 0, 255),
color(255, 0, 188, 255),
color(255, 0, 188, 255),
color(255, 0, 0, 255)
}
Car = class()
function Car:init(x,y,color)
self.x = x -- between -1 and 1
self.y = y -- from 0 to trackLength in meters
self.color = color
self.speed = regularSpeed
self.real = true -- unreal cars help with spawning
self.tireState = true -- for tire animation
self.tireStateHelper = 0
end
function Car:updateTireState()
self.tireStateHelper = self.tireStateHelper + self.speed / 60
if self.tireStateHelper > 5 then
self.tireStateHelper = 0
self.tireState = not self.tireState
end
end
function Car:draw(track,day)
-- coords of the track at this y
leftX = track:leftAt(self.y)
rightX = track:rightAt(self.y)
-- my coord at this y
x = ((1+self.x)*rightX + (1-self.x)*leftX)/2
s = metersToPixels(self.y) -- implemented in the track class
self:drawHelper(x,s,1-s/trackHeight,self.color,self.tireState,day)
end
-- x relative to middle of the screen in pixels, y relative to the bottom of the track
-- scale relative to a car at the bottom of the screen
-- tireState is true or false, for animation
function Car:drawHelper(x,y,s,colorIdx,tireState,day)
pushMatrix()
pushStyle()
resetMatrix()
translate(WIDTH/2+x,bottomY+y)
scale(trackWidth*s/90,trackHeight*s/108)
if colorIdx == 0 then -- hack for my car
thisColor = color(190,190,190,255)
elseif modes[day.mode].rearlights then
thisColor = nightCarColors[colorIdx]
else
thisColor = dayCarColors[colorIdx]
end
fill(thisColor)
stroke(thisColor)
strokeWidth(2)
if not modes[day.mode].rearlights or colorIdx == 0 then
-- regular car
rect(-4,1,8,7) -- body horizontal
rect(-2,0,4,12) -- body vertical
rect(-6,8,12,3) -- top wing
rect(-6,8,3,4) -- left wing
rect(3,8,3,4) -- right wing
for i = 0,7 do
if tireState == (i%2==0) then startX = -8 else startX = -6 end
rect(startX,i,3,2)
rect(startX+11,i,3,2)
end
else
-- rear lights
rect(2,0,5,4)
rect(-6,0,5,4)
end
popMatrix()
popStyle()
end
function spawnNewCars()
if maxPosition < 65 then -- space the cars apart
rand1 = random()
if rand1 < 0.7 then
-- spawn one car
x = (math.floor(3*random())-1)/2
newCar = Car(x,.9*trackLength,randColor())
table.insert(cars,newCar)
else
newCar = Car(0,.9*trackLength,randColor())
newCar.real = false
table.insert(cars,newCar)
end
end
end
-- used above
function randColor()
ncolors = table.maxn(dayCarColors)
idx = math.ceil(random()*ncolors)
return(idx)
end
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