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graphics
graphics clear 1,1,1
r=10
r2=r*2
draw size r2
new=1
set buttons default
button "clear" title "Clear" at 10,10 size 70,40
set buttons custom
fill color 0,0,0
draw color 1,1,1
button "black" title "Black" at 10,60 size 70,30
fill color 1,1,1
draw color 0,0,0
button "white" title "White" at 10,100 size 70,30
fill color 1,0,0
draw color 1,1,1
button "red" title "Red" at 10,140 size 70,30
fill color 0,1,0
button "green" title "Green" at 10,180 size 70,30
fill color 0,0,1
button "blue" title "Blue" at 10,220 size 70,30
draw color 0,0,0
fill color 0,0,0
loop:get touch 0 as x,y
if x=-1 then
new=1
if button_pressed("clear") then graphics clear 1,1,1
if button_pressed("black") then ! draw color 0,0,0 ! fill color 0,0,0 ! endif
if button_pressed("white") then ! draw color 1,1,1 ! fill color 1,1,1 ! endif
if button_pressed("red") then ! draw color 1,0,0 ! fill color 1,0,0 ! endif
if button_pressed("green") then ! draw color 0,1,0 ! fill color 0,1,0 ! endif
if button_pressed("blue") then ! draw color 0,0,1 ! fill color 0,0,1 ! endif
goto loop
endif
if new then draw to x,y else draw line to x,y
fill circle x,y size r
new=0
goto loop