# Looking for starter's tips.

Hello my name is Kai! I am young programmer just starting out. My friend has learned a lot just off this forum and the wiki by trying new code, which I too am doing. I have made a few programs before and was to get more advanced. Below I will post my current project, wich instead of running off of points to have a collisions engine. Thank you for reading this and please post some tips for me in the comments section. ``````
--# Main
function setup()
--This is were I select speed and y values, but because I am a stupid I need to make multiple Y ans Speed values.
y = 100
y1 = 100
y2 = 100
y3 = 100
y4 = 100
y5 = 100
y5 = 100

sped = 1
sped1 = 2
sped2 = 3
sped3 = 4
sped4 = 5

displayMode(FULLSCREEN)
supportedOrientations(LANDSCAPE_RIGHT)
end

function draw()
--This function here is for dev purposes, to keep track of all y values.
print (y,y1,y2,y3,y4,y5)
--Here I re-state the Y values and add speed to them so they can move.
y = y+sped
y1 = y1+sped1
y2 = y2+sped2
y3 = y3+sped3
y4 = y4+sped4

--Here I make the circles that bounce!
background(40,40,40)
ellipse(100,y,100,100)
ellipse(300,y1,100,100)
ellipse(500,y2,100,100)
ellipse(700,y3,100,100)
ellipse(900,y4,100,100)

--Down here is where things get tricky, I needed to make an "If Then" statement for each ball to ensure it won't leave the screen.
if y >= 700 then sped = -sped end
if y < 50 then sped = -sped end

if y1 >= 700 then sped1 = -sped1 end
if y1 < 50 then sped1 = -sped1 end

if y2 == 700 then sped2 = -sped2 end
if y2 < 50 then sped2 = -sped2 end

if y3 == 700 then sped3 = -sped3 end
if y3 < 50 then sped3 = -sped3 end

if y4 == 700 then sped4 = -sped4 end
if y4 < 50 then sped4 = -sped4 end

fill(255, 7, 0, 255)
end
``````

Sorry I don’t know why this won’t post correctly.

@Kai - See what you can do with tables

``````function setup()
displayMode(FULLSCREEN)
supportedOrientations(LANDSCAPE_RIGHT)
posX={100,300,500,700,900}  --x positions of the 5 balls
posY={100,100,100,100,100} --y positions
speed={1,2,3,4,5}   --speeds
fill(255,0,0)
end

function draw()
background(40,40,40)
for i=1,#posY do  --loop through all the balls
posY[i]=posY[i]+speed[i]
if posY[i]>700 or posY[i]<50 then speed[i]=-speed[i] end
ellipse(posX[i],posY[i],100,100)
end
end
``````

I’ve written some ebooks here that may help

https://www.dropbox.com/sh/mr2yzp07vffskxt/AACqVnmzpAKOkNDWENPmN4psa

read the Lua book to learn about tables and loops (Lua is the language behind Codea).

Keep going, you’ve started well! =D>

@Ignatz Ok thank you. I have looked at tables in the past but I have yet to under stand them is you can begin messaging me to help me learn please,do

@Kai Please don’t post the same program to different discussions asking for the same help. That’s the quickest way not to get any help. @Ignatz, see the discussion

``````http://codea.io/talk/discussion/7067/bouncy-a-ball-test#latest
``````

@Kai - I agree. DON’T post the same thing twice.

I have wasted my time and I am not happy. :-w

Ok sorry guys @dave1707 and @Ignatz