Diamond Intro (testing 4.8) code
Posted: Tue Apr 14, 2015 7:24 am
Code: Select all
rem DIAMOND INTRO v1b
rem iPhone 6 Plus / iOS 8.3 / SB 4.8
rem testing 4.8 tri commands :)
rem nice update to Smart Basic!!
rem 1b - fixed typos...
rem Enjoy!
'I wrote this to test Smart Basic's new
'features. No new ideas to create
'this demo. I made some quick routines
'that run my vectors fast.. Although
'they are not practical to use in game
'design, they sure look cool!
graphics
pi=3.1415
sw=screen_width()
sh=screen_height()
gosub printupbolox
gosub precalculate
b=0
'Variable definitions..
b=0
p=0
qz=255
linesize=20 'characters in each line
a$=""
a$=a$&" THE DIAMOND INTRO "
a$=a$&" IN SMARTBASIC 4.8 "
a$=a$&" ITS FAST AND EASY "
a$=a$&""
s$=" "
s$=s$&"THIS INTRO TOOK SOME TIME AND IS SIMPLE. "
s$=s$&"YOU CAN SEE BEFORE YOU: A PLASMA "
s$=s$&"BACKGROUND, A 55 POINT 3D STARFIELD, A SCALLED "
s$=s$&"AND ROTATED 32 POLYGON LIGHT SOURCED VECTOR AND 3 "
s$=s$&"DIFFERENT TEXT DISPLAYS ALL HAPPENING AT ONCE, AND"
s$=s$&" AT FULL FRAME RATE WITH *NO* SLOWDOWN!! THIS "
s$=s$&"IS ONLY POSSIBLE BECAUSE I AM DOING SOME CHEATING "
s$=s$&"WITH THE VECTOR OBJECT, THE REST OF IT IS LAME "
s$=s$&"THOUGH.... I AM STARTING TO GET TO GRIPS WITH "
s$=s$&"BASIC NOW, SO YOU CAN EXPECT TO SEE MORE DEMOS "
s$=s$&"FROM ME WITH MORE IMPRESSIVE ROUTINES THAN THIS!! "
s$=s$&"THAT'S ENOUGH TEXT I THINK... TAKE CARE AND I'LL "
s$=s$&"SEE YOU IN MY NEXT DEMO!!! "
scrx=10
tp=0
nstar=55
zm=1
xm=1
ym=1
dim ox(nstar+1)
dim oy(nstar+1)
dim oc(nstar+1)
dim os(nstar+1)
dim x(nstar+1)
dim y(nstar+1)
dim z(nstar+1)
'Set Star positions..
mmm=1
for a=1 to nstar
x(a)=-25+rnd(50)
y(a)=-25+rnd(50)
z(a)=mmm
mmm=mmm+100/nstar
next a
loop:
refresh off
graphics clear 0,0,0
gosub background
gosub dispstars
gosub logo
gosub scroller
gosub drawprecalcobj
if qz<=50 then
draw color qz/255,qz/255,qz/255
draw text mid$(a$,p+1,linesize) at sw/4,sh/2
end if
if qz>50 then
draw color qz/255,qz/255,qz/255
draw text MID$(a$,p+1,linesize) at sw/4,sh/2
end if
refresh on
goto loop
printupbolox:
dim boll$(12)
boll$(1)=" DRCHIP PROUDLY PRESENTS: "
boll$(2)=" THE D I A M O N D INTRO! "
boll$(3)="=============================================="
boll$(4)="= ALL PROGRAMMING AND DESIGN : DRCHIP ="
boll$(5)="= RELEASED ON APRIL 2015 IN SMART BASIC 8.4 ="
boll$(6)="= SMARTBASIC (IN THE APP STORE - LOOK!!). ="
boll$(7)="= CONTACT ME VIA THE FORUM PAGE ON THAT SITE ="
boll$(8)="= OR IF YOU'RE REALLY COOL YOU CAN CONTACT ="
boll$(9)="= ME VIA FORUM. (CODERS ONLY!) ="
boll$(10)="=============================================="
for b=1 to 64
refresh off
graphics clear 0,0,0
yy=sh/3
for a=1 to 10
scalc=(b+(a*13))*sin(b/17)
draw color scalc/255,scalc/255,scalc/255
draw text boll$(a) at 1,yy
yy=yy+13
next a
refresh on
pause .1
next b
return
scroller:
draw color 0,0,0
draw text mid$(s$,tp,64) at scrx,sh-22
draw color 200/255,1,1
draw text mid$(s$,tp,64) at scrx,sh-20
scrx=scrx-2
if scrx<0 then
tp=tp+1
scrx=scrx+10
end if
if tp>len(s$)-1 then tp=0
return
logo:
'fill color 0,0,50/255
'fill rect 0,0 to sw,20
draw color .5,.5,.5
draw text "THE DIAMOND INTRO" at sw/6,3
draw color 1,1,1
draw text "THE DIAMOND INTRO" at sw/6,0
return
'Draw stars
'This subroutine draws the plasma and blue border
background:
'Cycle colors
backcount=backcount+1
red=20+20*sin(backcount/14)
grn=20+20*sin(backcount/15)
blu=20+20*sin(backcount/16)
'Draw blue border lines
fill color 15/255,15/255,1
fill rect 0,0 to sw,sh
'Set poly palette
fill color red/255,grn/255,blu/255
' fill color 20/255,grn,20/255
' fill color 20/255,20/255,blu/255
'draw plasma
fill tri 20,20, sw-20,sh-20, 20,sh-20
fill tri 20,20, sw-20,sh-20, sw-20,20
return
dispstars:
mm=mm+.1
sz=2*sin(mm/23)
for a=1 to nstar
qt=200-z(a)*2
fill color qt/255,qt/255,(qt+20)/255
xx=x(a)*25
yy=y(a)*25
xx=xx/z(a)*30
yy=yy/z(a)*30
xx=xx+sw/2
yy=yy+sh/2
zz=10-z(a)/14
fill rect xx,yy to xx+zz,yy+zz
z(a)=z(a)+sz
if z(a)<1 then z(a)=z(a)+100
if z(a)>100 then z(a)=z(a)-100
next a
qz=qz-1
if qz<=0 then p=p+linesize ! if p>len(a$) -1 then p=0
if qz<=0 then qz=255
return
'Draw the diamond from out software memory bank!
drawprecalcobj:
for a=1 to polys
'fill color rstore(b/3)*a,gstore(b/3)*(a*2),bstore(b/3)*(a*3)
fill color (a*2)/255,(a*3)/255,(a*4)/255
fill tri xstore(b),ystore(b), xstore(b+1),ystore(b+1),xstore(b+2),ystore(b+2)
b=b+3
next a
if b>=(polys*3)*175 then b=0
return
'The rest of the listing is the precalculation routine!!!!
'This code will work out the screen co-ordinates for the
'32 polygon diamond!!
precalculate:
'Number of faces in object:
polys=32
dim xstore((polys*4)*180)
dim ystore((polys*4)*180)
dim rstore(polys*180)
dim gstore(polys*180)
dim bstore(polys*180)
'X and Y screen offset positions to center object:
xff=sw/2
yff=sh/2
'X+Y rotation values!
rotx=0.036
roty=0.036
rtx=0
rty=0
'How big do you want it???
size=8
'Permanent and temporary storage definition
'Define arrays to store data:
dim x(polys*4)
dim y(polys*5)
dim z(polys*4)
dim c(polys*4)
'Define arrays to hold transformed data:
dim tx(polys*4)
dim ty(polys*5)
dim tz(polys*4)
dim tc(polys*4)
' Read in the object data and place into storage arrays:
b=1
for a=1 to polys
read x(b),y(b),z(b),x(b+1),y(b+1),z(b+1),x(b+2),y(b+2),z(b+2),c(b),c(b+1),c(b+2)
b=b+3
next a
'Make movements
for frames=1 to 179
refresh off
graphics clear 0,0,0
draw color 1,1,1
draw text "precalculating..." at 0,0
gosub transform
gosub rotate
gosub sort
gosub draw
refresh on
next frames
return
'End of precalculation
'Sort Faces, colors and z co-ords according to depth!
sort:
for lame=1 to polys-1
b=1
for a=1 to polys-1
dck1=tz(b)+tz(b+1)+tz(b+2)
dck2=tz(b+3)+tz(b+4)+tz(b+5)
if dck2>dck1 then gosub swap
b=b+3
next a
next lame
return
swap:
for in=0 to 2
tmpx=tx(b+in)
tmpy=ty(b+in)
tmpz=tz(b+in)
tmpc=tc(b+in)
tx(b+in)=tx(b+in+3)
ty(b+in)=ty(b+in+3)
tz(b+in)=tz(b+in+3)
tc(b+in)=tc(b+in+3)
tx(b+in+3)=tmpx
ty(b+in+3)=tmpy
tz(b+in+3)=tmpz
tc(b+in+3)=tmpc
next in
return
'Rotate Object and apply perspective
rotate:
'New angles
rtx=rtx+rotx
rty=rty+roty
'For tidyness
crx=cos(rtx)
srx=sin(rtx)
cry=cos(rty)
sry=sin(rty)
'spin `em
b=1
for p=1 to polys
for inner=1 to 3
nwy= crx*ty(b) + srx*tz(b)
nwz= crx*tz(b) - srx*ty(b)
nwx= cry*tx(b) + sry*nwz
nwz= cry*nwz - sry*tx(b)
'Perspective+offset
nwz=nwz+700
tx(b)=xff+nwx*1300 /nwz
ty(b)=yff+nwy*1300 /nwz
tz(b)=nwz
b=b+1
next inner
next p
return
'Pull Object into temporary storage for manipulation!!
transform:
b=1
size=12*sin(frames/55.01)
for a=1 to polys
for inner=1 to 3
tx(b)=x(b)*size
ty(b)=y(b)*size
tz(b)=z(b)*size
tc(b)=c(b)
b=b+1
next inner
next a
return
'Draw the object held in the temporary array.
draw:
b=1
for a=1 to polys
xstore(mp)=tx(b)
xstore(mp+1)=tx(b+1)
xstore(mp+2)=tx(b+2)
ystore(mp)=ty(b)
ystore(mp+1)=ty(b+1)
ystore(mp+2)=ty(b+2)
rstore(cp)=tc(b)+(size*4) -100
gstore(cp)=tc(b+1)+(size*4) -100
bstore(cp)=tc(b+2)+(size*4) -100
fill color tc(b)/255,tc(b+1)/255,tc(b+2)/255
fill tri tx(b),ty(b), tx(b+1),ty(b+1), tx(b+2),ty(b+2)
b=b+3
cp=cp+1
mp=mp+3
next a
return
' 3D Object Description As Numerical Data...
object:
' data structure: x,y,z,x,y,z,x,y,z,r,g,b
' (diamond object, 32 polygons)
data -1,6,0,1,6,0,0,0,4,97,7,7
data -1,-6,0,1,-6,0,0,0,4,97,7,7
data 6,1,0,6,-1,0,0,0,4,97,7,7
data -6,1,0,-6,-1,0,0,0,4,97,7,7
data 3,5,0,1,6,0,0,0,4,57,7,7
data 3,5,0,5,3,0,0,0,4,67,7,7
data 5,3,0,6,1,0,0,0,4,77,7,7
data -3,5,0,-1,6,0,0,0,4,87,7,7
data -3,5,0,-5,3,0,0,0,4,97,7,7
data -5,3,0,-6,1,0,0,0,4,107,7,7
data 3,-5,0,1,-6,0,0,0,4,117,7,7
data 3,-5,0,5,-3,0,0,0,4,127,7,7
data 5,-3,0,6,-1,0,0,0,4,137,7,7
data -3,-5,0,-1,-6,0,0,0,4,147,7,7
data -3,-5,0,-5,-3,0,0,0,4,157,7,7
data -5,-3,0,-6,-1,0,0,0,4,167,7,7
data -1,6,0,1,6,0,0,0,-4,7,7,97
data -1,-6,0,1,-6,0,0,0,-4,7,7,97
data 6,1,0,6,-1,0,0,0,-4,7,7,97
data -6,1,0,-6,-1,0,0,0,-4,7,7,97
data 3,5,0,1,6,0,0,0,-4,7,7,57
data 3,5,0,5,3,0,0,0,-4,7,7,67
data 5,3,0,6,1,0,0,0,-4,7,7,77
data -3,5,0,-1,6,0,0,0,-4,7,7,87
data -3,5,0,-5,3,0,0,0,-4,7,7,97
data -5,3,0,-6,1,0,0,0,-4,7,7,107
data 3,-5,0,1,-6,0,0,0,-4,7,7,117
data 3,-5,0,5,-3,0,0,0,-4,7,7,127
data 5,-3,0,6,-1,0,0,0,-4,7,7,137
data -3,-5,0,-1,-6,0,0,0,-4,7,7,147
data -3,-5,0,-5,-3,0,0,0,-4,7,7,157
data -5,-3,0,-6,-1,0,0,0,-4,7,7,167
