Spinning Lines (iPad/iPhone)
Posted: Mon Feb 16, 2015 12:19 am
Playing around with sprites again. This draws multicolor lines in a circle pattern and spins it around like a pin wheel. Can make you dizzy after a while.
Touch screen for different zoom and alpha levels. Touch higher up on screen to get closer zoom level, lower touch makes less zoom level.
- Dav
Touch screen for different zoom and alpha levels. Touch higher up on screen to get closer zoom level, lower touch makes less zoom level.
- Dav
Code: Select all
'Spinning color lines using sprite.
'Touch screen for different zoom
'and alpha level. Touch higher on
'screen for closer zoom levels, and
'lower on screen for further away.
'Coded by Dav
graphics
option sprite pos central 'center sprites
x=screen_width()/2
y=screen_height()/2
refresh off
draw size 2
shadow on
for a = 1 to 1975 step 10
d = a*360
x2 = cos(d) * y
y2= sin(d) * y
r=rnd(255) ! g=rnd(255) ! b=rnd(255)
draw color r/255,g/255,b/255
draw line x,y to x+x2,y+y2
next a
sprite "s" scan 0,0,x*2,y*2
sprite "s" show
graphics clear 0,0,0
refresh on
retouch:
a=rnd(50000)+1001 'random zoom value
al=rnd(100)+20 'random alpha level
'higher touches make closer zooms...
if touch_y(0)>0 then a=a/touch_y(0)*500
do
sprite "s" alpha al/100
sprite "s" at x,y scale a/1000 angle a/100
'keep pos if orintation changed
if screen_width()/2<>x then
x=screen_width()/2
y=screen_height()/2
end if
a=a+1 ! pause .005
if touch_x(0)<>-1 then goto retouch
until 0