OK, attached is a simple demonstration of sliding collision using sparky's dll. It should be easy to implement into your project, just change "position camera x#,y#+2,z#" with the object you want to position:
position object <player>,x#,y#,z#
Download the attachment, hope this helps!
Another thing you may have to change is the collision size and speed, because your world may be a lot bigger or smaller than mine. My collision size is set to 6:
rem collision with ground
if intersectObjectDBC(1,0,x#,y#,z#,x#,y#-3,z#,0) then y#=GetStaticCollisionY()+3:grav#=0
rem collision with roof
if intersectObjectDBC(1,0,x#,y#,z#,x#,y#+3,z#,0) then y#=GetStaticCollisionY()-3
rem collision with walls
if IntersectObjectDBC(1,0,x#,y#,z#,x#-3,y#,z#,0) then x#=GetStaticCollisionX()+3
if IntersectObjectDBC(1,0,x#,y#,z#,x#+3,y#,z#,0) then x#=GetStaticCollisionX()-3
if IntersectObjectDBC(1,0,x#,y#,z#,x#,y#,z#-3,0) then z#=GetStaticCollisionZ()+3
if IntersectObjectDBC(1,0,x#,y#,z#,x#,y#,z#+3,0) then z#=GetStaticCollisionZ()-3
You will notice the 3 everywhere. If your character is 30 wide, 20 long and 80 high, you will have to divide those numbers by 2 and insert them at the correct place:
rem collision with ground
if intersectObjectDBC(1,0,x#,y#,z#,x#,y#-40,z#,0) then y#=GetStaticCollisionY()+40:grav#=0
rem collision with roof
if intersectObjectDBC(1,0,x#,y#,z#,x#,y#+40,z#,0) then y#=GetStaticCollisionY()-40
rem collision with walls
if IntersectObjectDBC(1,0,x#,y#,z#,x#-15,y#,z#,0) then x#=GetStaticCollisionX()+15
if IntersectObjectDBC(1,0,x#,y#,z#,x#+15,y#,z#,0) then x#=GetStaticCollisionX()-15
if IntersectObjectDBC(1,0,x#,y#,z#,x#,y#,z#-10,0) then z#=GetStaticCollisionZ()+10
if IntersectObjectDBC(1,0,x#,y#,z#,x#,y#,z#+10,0) then z#=GetStaticCollisionZ()-10
TheComet
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