Also Note:
You must ensure that the CSG object used has not been internally rotated, scaled or translated and that it visually represents the pure geometry data stored in the mesh.
//List of CSG Commands
PERFORM CSG UNION TargetObject, BrushObject
PERFORM CSG DIFFERENCE TargetObject, BrushObject
PERFORM CSG INTERSECTION TargetObject, BrushObject
PERFORM CSG UNION ON VERTEXDATA BrushMesh
PERFORM CSG DIFFERENCE ON VERTEXDATA BrushMesh
PERFORM CSG INTERSECTION ON VERTEXDATA BrushMesh
The brush object is used to modify the target object
Example given by the 'help' source code, scary huh?
cls 0 : ink rgb(255,255,255),0 : circle 16,16,14
scorchimage=1 : get image scorchimage,0,0,32,32
set static universe 40*100,21*100,40*100
tfile$="universe.dbo"
if file exist(tfile$)=1
dividetexturesize=0 : load static objects tfile$,dividetexturesize : omax=1
else
collision=2 : Arbitraryvalue=0 : shadow=1 : portal=1 : o=1
for x=0 to 10 : for z=0 to 10
make object box o,100,5,100 : position object o,x*100,2.5,z*100
make static object o,collision,Arbitraryvalue,shadow,portal : inc o
if x=6 and z=6
make object cube o,25 : make mesh from object 1,o : position object o,x*100,-10,z*100
for l=1 to 15 : add limb o,l,1 : offset limb o,l,0,l*28,0 : make static limb o,l,collision,Arbitraryvalue,shadow,portal : next l : inc o
endif
next z : next x
for w=1 to 4
if w=1 then sx=1000 : sz=50 : px=500 : pz=0
if w=2 then sx=1000 : sz=50 : px=500 : pz=1000
if w=3 then sx=50 : sz=1000 : px=0 : pz=500
if w=4 then sx=50 : sz=1000 : px=1000 : pz=500
make object box o,sx,200,sz : position object o,px,100,pz
make static object o,collision,Arbitraryvalue,shadow,portal : inc o
next w
for er=12 to 33 : delete static object er : next er
build static portals : delete light map lights : add static objects to light map pool
make object cube o,100 : position object o,600,75,400 : add object to light map pool o
make mesh from object 3,o : add limb o,1,3 : offset limb o,1,0,0,-125
add limb to light map pool o,1 : inc o
add light map light 400,90,800,500,255,0,0,50,1
add light map light 200,90,400,500,0,255,0,50,1
add light map light 800,90,200,500,0,0,255,50,1
texturesize=16 : texturequality=1 : lightmapsavepath$="lightmaps"
if path exist(lightmapsavepath$)=0 then make directory lightmapsavepath$
create light maps texturesize,texturequality,lightmapsavepath$
if file exist(tfile$)=1 then delete file tfile$
save static objects tfile$ : omax=o
for i=1 to omax-1 : delete object i : next i
endif
set static scorch scorchimage,1,1
d=omax : make object cone d,100 : make mesh from object 2,d : add limb d,1,2 : rotate limb d,1,90,0,0
offset limb d,1,0,0,50 : scale limb d,1,30,100,30
position object d,500,150,600 : color object d,rgb(255,255,0) : yrotate object d,0 : attach object to static d
make object cube d+1,50 : position object d+1,700,200,500 : make object box d+2,100,100,20 : make object box d+3,80,80,40
perform csg difference d+2,d+3 : position object d+3,100,150,925 : position object d+2,100,50,925
make object box d+4,100,100,20 : make object box d+5,80,80,40 : perform csg union d+4,d+5 : position object d+5,300,150,925 : position object d+4,300,50,925
make object box d+6,100,100,20 : make object box d+7,80,80,40 : perform csg intersection d+6,d+7 : position object d+7,500,150,925 : position object d+6,500,50,925
make object box d+8,100,100,20 : make object box d+9,80,80,40 : perform csg clip d+8,d+9 : position object d+9,700,150,925 : position object d+8,700,50,925
make object sphere d+11,75,30,30 : make mesh from object d+11,d+11 : reduce mesh d+11,0,0,10,5,10
delete object d+11 : make object d+11,d+11,0 : position object d+11,900,150,925
make object box d+10,100,100,20 : make mesh from object d+10,d+10
lock vertexdata for mesh d+10
perform csg difference on vertexdata d+11 : perform csg union on vertexdata d+11 : perform csg intersection on vertexdata d+11
unlock vertexdata
delete object d+10 : make object d+10,d+10,0 : position object d+10,900,50,925
set global shadows on : set global shadow shades 1 : set global shadow color 0,0,0,64
set shadow light 1,300,500,700,2000 : set shadow position -1,300,500,700
for i=0 to 11 : set shadow shading on d+i : next i
position camera 300,50,300 : point camera 500,50,500
set point light 0,500,300,500 : set ambient light 20
set normalization on : sync on : sync rate 60
while mouseclick()=0
if inkey$()="-" then set static portals on
if inkey$()="=" then set static portals off
if inkey$()="[" then set static objects wireframe on
if inkey$()="]" then set static objects wireframe off
control camera using arrowkeys 0,2,4
x#=object position x(d) : y#=object position y(d) : z#=object position z(d)
nx#=newxvalue(x#,object angle y(d),75.0) : nz#=newzvalue(z#,object angle y(d),75.0)
if static raycast(x#,y#,z#,nx#,y#,nz#)=0
yrotate object d,object angle y(d)+rnd(10)/100.0 : move object d,1
else
yrotate object d,object angle y(d)+1 : add static scorch 25,0
endif
if static volume(x#,y#,z#,x#,y#-5,z#,10)=0 then position object d,x#,y#-5,z#
if createdinvisiblefloor=0
make static collision box -100,-200,-100,1100,0,1100 : createdinvisiblefloor=1
else
x#=object position x(d+1) : y#=object position y(d+1) : z#=object position z(d+1)
if get static collision hit(x#-25,y#-25,z#-25,x#+25,y#+25,z#+25,x#-25,y#-30,z#-25,x#+25,y#+20,z#+25)=0
y#=y#-grav# : inc grav#,0.5
else
colArbitraryvalue=get static collision value() : colcount=get static collision count() : colfloor=get static collision floor()
x#=x#+get static collision x() : y#=y#+get static collision y() : z#=z#+get static collision z()
endif
position object d+1,x#,y#,z#
if static line of sight(x#,y#,z#,x#,y#-5,z#-1,0.1,0.1)=1 then grav#=grav#*-0.95
endif
sync
endwhile
set global shadows off : detach object from static d : delete static objects
end
