The only thing is - we already had that challenge. Challenge 7, 'create a graphical/lighting effect'. Here's what I did:
if check display mode(1024,768,32)=1 then set display mode 1024,768,32
sync on
sync rate 60
autocam off
hide mouse
ink rgb(120,160,185),0
box 0,0,97,97
get image 1,0,0,100,100
make matrix 1, 1000, 1000, 20, 20
position matrix 1,-500,0,-500
prepare matrix texture 1, 1, 1, 1
ghost matrix on 1,3
update matrix 1
color backdrop 0
set ambient light 0
make light 1
set light range 1,2000
hide light 0
make object sphere 100,20
set object light 100,0
global a#
global cxa#
global cx#
global cy#
global cz#
cz#=-400
global theta#
make_objects()
DO
move_light()
update_shadow()
camera_stuff()
sync
LOOP
function camera_stuff()
oldcx#=cx#
oldcz#=cz#
speed# = 5
if shiftkey() then speed# = 10
if upkey()=1
cx#=newxvalue(cx#,a#,speed#)
cz#=newzvalue(cz#,a#,speed#)
endif
if downkey()=1
cx#=newxvalue(cx#,a#,-speed#)
cz#=newzvalue(cz#,a#,-speed#)
endif
if leftkey()=1
cx#=newxvalue(cx#,wrapvalue(a#-90.0),speed#)
cz#=newzvalue(cz#,wrapvalue(a#-90.0),speed#)
endif
if rightkey()=1
cx#=newxvalue(cx#,wrapvalue(a#+90.0),speed#)
cz#=newzvalue(cz#,wrapvalue(a#+90.0),speed#)
endif
a#=wrapvalue(a#+(mousemovex()/3.0))
cxa#=cxa#+(mousemovey()/3.0)
if cxa#<-90.0 then cxa#=-90.0
if cxa#>90.0 then cxa#=90.0
cy# = get ground height(1,cx#,cz#)
position camera cx#,cy#+50,cz#
rotate camera wrapvalue(cxa#),a#,0
endfunction
function make_objects()
ink rgb(155,155,255),0
box 0,0,10,10
get image 2,0,0,10,10
make object sphere 1,50,30,30
texture object 1,2
set object specular power 1,30
set object specular 1,rgb(250,150,150)
set object smoothing 1,100
set object diffuse 1,rgb(200,170,140)
position object 1,-100,25,0
make object sphere 2,50,20,20
make mesh from object 2,2
add limb 1,1,2
delete object 2
delete mesh 2
color limb 1,1,0
ink rgb(0,255,0),0
box 0,0,10,10
get image 4,0,0,10,10
make object cylinder 5,50
texture object 5,4
set object specular power 5,30
set object specular 5,rgb(250,150,150)
set object smoothing 5,100
set object diffuse 5,rgb(200,170,140)
position object 5,0,25,0
make object cylinder 6,50
xrotate object 6,90
fix object pivot 6
make mesh from object 2,6
add limb 5,1,2
delete object 6
delete mesh 2
color limb 5,1,0
ink rgb(255,0,0),0
box 0,0,10,10
get image 3,0,0,10,10
make object cone 3,50
texture object 3,3
set object specular power 3,30
set object specular 3,rgb(250,150,150)
set object smoothing 3,100
set object diffuse 3,rgb(200,170,140)
position object 3,100,25,0
make object cone 4,50
xrotate object 4,90
fix object pivot 4
make mesh from object 2,4
add limb 3,1,2
delete object 4
delete mesh 2
color limb 3,1,0
make object sphere 101,50
texture object 101,2
fade object 101,30
position object 101,-100,-25,0
xrotate object 101,-180
make object cone 103,50
texture object 103,3
fade object 103,60
position object 103,100,-25,0
xrotate object 103,-180
make object cylinder 105,50
texture object 105,4
fade object 105,30
position object 105,0,-25,0
xrotate object 105,-180
endfunction
function move_light()
lightx#=260*sin(theta#)
lightz#=150*cos(theta#)
lighty#=180+150*cos(theta#/1.4)
inc theta#
position light 1,lightx#,lighty#,lightz#
position object 100,lightx#,lighty#,lightz#
endfunction
function update_shadow()
for object=1 to 5 step 2
horizontal_distance#=sqrt((light position x(1)-object position x(object))^2+(light position z(1)-object position z(object))^2)
vertical_distance#=light position y(1)-object position y(object)
offset#=24+(horizontal_distance#/vertical_distance#)
offset limb object,1,0,-25,offset#
scale limb object,1,100,2,100+2*offset#
bearing#=atanfull(light position x(1)-object position x(object),light position z(1)-object position z(object))
rotate object object,0,bearing#-180,0
next object
endfunction
Was probably the worst challenge so far, in that other than me (the judge), only one person bothered to enter, and won by default!
I'm not saying you can't set a similar challenge again if you want to, but perhaps a physics challenge would get more interest? You're the setter, so the choice is yours! If you're stuck for physics ideas, then how about a lunar lander mini game, or an asteroids clone, or something like that?
