I am still a beginner with Lua I feel, but I have coded this game where the user must tap the screen to avoid the UFO from hitting a wall. The object is to not hit the wall for the longest time. There is slight delay from when the user taps the screen and when the UFO changes directions.
function setup()
score = 0
hit = 0
x=380 --starting x
y=400 --starting y
d=100 --diameter of ball
dx = 0
dy = 0
k = 0
end
function draw()
background(0, 0, 0, 255)
pushStyle()
sprite("Space Art:UFO",x,y,d)
font("Futura-CondensedExtraBold")
textAlign(CENTER)
fill(180, 207, 173, 255)
lel = string.format("%.f",(ElapsedTime))
text("Tap screen when UFO is about to hit wall.\
\
You have survived for " .. lel .. " seconds.", 380, 600)
text("Score: " .. score,350,700)
fontSize(40)
popStyle()
--[[ change direction if we hit a wall
if x>WIDTH-d/2 or x<d/2 then dx=-dx score = score + 1 print("You hit a wall! Try again") end
if y>HEIGHT-d/2 or y<d/2 then dy=-dy end
]]
if x>WIDTH-d/2 or x<d/2 or y>HEIGHT-d/2 or y<d/2 then y = 400 x = 380 oldscore = score print("You just got a score of " .. oldscore .. "!") score = 0 dx = 0 dy = 0 k = 0 print("You hit a wall! Try again") else x=x+dx
y=y+dy end
function touched(touch)
if touch.state == BEGAN then
k = k + 1
if k == 1 then
score = 1
dx=2 --the amount x changes
dy=2 --the amount y changes
score = score + 2
end
elseif k > 1 then
if dx > 0 then
dx= math.random(-5, -1) --the amount x changes
dy= math.random(-5, -1) --the amount y changes
score = score + 1
elseif dx < 0 then
dx=math.random(1,5)
dy=math.random(1,5)
end
if y > 619 or y < 101 then
score = score + 10
elseif x > 619 or x < 101 then
score = score + 10
end
end
end
end
It stops the delay. This is because it is waiting for you to move or remove your finger from the screen before the UFO changes direction. However i have not looked over the rest of your code to see if this affects the scoring system.
This is a very good game well done
Thanks Coder, I tweaked that and a few other things and managed to make it much more responsive and efficient. Here is my code now:
function setup()
score = 0
hit = 0
x=380 --starting x
y=400 --starting y
d=100 --diameter of ball
dx = 0
dy = 0
k = 0
alrighty = 0
end
function draw()
background(0, 0, 0, 255)
pushStyle()
sprite("Space Art:UFO",x,y,d)
font("HelveticaNeue-Bold")
textAlign(CENTER)
fill(255, 255, 255, 255)
--lel = string.format("%.f",(ElapsedTime - alrighty))
if score == 0 then
alrighty = ElapsedTime
elseif score == 1 then
alrighty = ElapsedTime
end
text("Score: " .. score .. "\
\
Tap screen when UFO is about to hit wall.\
\
You have survived for " .. string.format("%.f",(ElapsedTime - alrighty)) .. " seconds.", 380, 555)
fontSize(50)
popStyle()
--[[ change direction if we hit a wall
if x>WIDTH-d/2 or x<d/2 then dx=-dx score = score + 1 print("You hit a wall! Try again") end
if y>HEIGHT-d/2 or y<d/2 then dy=-dy end
]]
if x>WIDTH-d/2 or x<d/2 or y>HEIGHT-d/2 or y<d/2 then y = 400 x = 380 oldscore = score print("You just got a score of " .. oldscore .. "!") score = 0 dx = 0 dy = 0 k = 0 else x=x+dx
y=y+dy end
end
function touched(touch)
if touch.state == BEGAN then
k = k + 1
if k == 1 then
dx=2 --the amount x changes
dy=2 --the amount y changes
score = score + 2
end
if touch.state == MOVING or touch.state == BEGAN and k > 1 then
if dx > 0 then
dx= math.random(-6, -2) --the amount x changes
dy= math.random(-6, -2) --the amount y changes
score = score + 1
elseif dx < 0 then
dx=math.random(2,6)
dy=math.random(2,6)
end
if y > 619 or y < 101 then
score = score + math.random(8,11)
elseif x > 619 or x < 101 then
score = score + math.random(8,11)
end
end
end
end
function setup()
displayMode(FULLSCREEN)
score = 0
hit = 0
x=500--starting x
y=400 --starting y
d=100 --diameter of ball
dx = 0
dy = 0
k = 0
alrighty = 0
rcol = 0
bcol = 0
gcol= 0
alphacol= 0
highscore = readLocalData("highscore")
if not highscore then
highscore = 0
end
end
function draw()
pushStyle()
font("HelveticaNeue-Bold")
textAlign(CENTER)
fill(255, 255, 255, 255)
if score == 0 then
alrighty = ElapsedTime
background(0, 0, 0, 0)
elseif score == 1 then
alrighty = ElapsedTime
elseif score > 0 then
background(rcol,gcol,bcol,alphacol)
end
sprite("Space Art:UFO",x,y,d)
textMode(CENTER)
textAlign(CENTER)
text("Your high score is " .. highscore .. ".\
Score: " .. score .. "\
Tap screen when UFO is about to hit wall.\
\
You have survived for " .. string.format("%.f",(ElapsedTime - alrighty)) .. " seconds.", 500,500)
fontSize(55)
popStyle()
--[[ change direction if we hit a wall
if x>WIDTH-d/2 or x<d/2 then dx=-dx score = score + 1 print("You hit a wall! Try again") end
if y>HEIGHT-d/2 or y<d/2 then dy=-dy end
]]
if x>WIDTH-d/2 or x<d/2 or y>HEIGHT-d/2 or y<d/2 then y = 400 x = 500 saveLocalData("highscore", highscore) print("Your high score is " .. highscore .. ". You just got a score of " .. score .. ", in " .. string.format("%.f",(ElapsedTime - alrighty)) .. " seconds!" .. WIDTH .. HEIGHT) score = 0 dx = 0 dy = 0 k = 0 else x=x+dx
y=y+dy end
if score > highscore then
highscore = score
end
end
function touched(touch)
if touch.state == BEGAN and k ~= nil then
k = k + 1
if k == 1 then
dx=2 --the amount x changes
dy=2 --the amount y changes
score = score + 2
end
end
if touch.state == BEGAN and k > 1 then
rcol= math.random(200)
bcol= math.random(200)
gcol= math.random(200)
alphacol=math.random(200)
if dx > 0 then
dx= math.random(-7, -3) --the amount x changes
dy= math.random(-7, -3) --the amount y changes
score = score + 1
elseif dx < 0 then
dx=math.random(3,7) --changes direction and speed to a random number between 2 and 6 if it is a negative value.
dy=math.random(3,7)
score = score + 1
end
if y > 649 or y < 101 then
score = score + math.random(7,11)
elseif x > 649 or x < 101 then
score = score + math.random(7,11)
end
end
end
