public void MovePrimToFront(Primitive prim)
{
var lastPrim = primitives.Last<Primitive>();
ZIndexCommand zIndexCommand = new ZIndexCommand(primitives, prim, prim.z, lastPrim.z + 1);
commands.Add(zIndexCommand);
zIndexCommand.Do();
}
public void MovePrimForward(Primitive prim)
{
Primitive nextPrim;
int nextPrimIndex = primitives.IndexOf(prim) + 1;
if(nextPrimIndex < 0 || nextPrimIndex >= primitives.Count) { return; }
nextPrim = primitives[nextPrimIndex];
ZIndexCommand zIndexCommand = new ZIndexCommand(primitives, prim, prim.z, nextPrim.z, nextPrim, nextPrim.z, prim.z);
commands.Add(zIndexCommand);
zIndexCommand.Do();
}
public void MovePrimToBack(Primitive prim)
{
var firstPrim = primitives.First<Primitive>();
ZIndexCommand zIndexCommand = new ZIndexCommand(primitives, prim, prim.z, firstPrim.z - 1);
commands.Add(zIndexCommand);
zIndexCommand.Do();
}
public void MovePrimBackward(Primitive prim)
{
Primitive prevPrim;
int prevPrimIndex = primitives.IndexOf(prim) - 1;
if (prevPrimIndex < 0 || prevPrimIndex >= primitives.Count) { return; }
prevPrim = primitives[prevPrimIndex];
ZIndexCommand zIndexCommand = new ZIndexCommand(primitives, prevPrim, prevPrim.z, prim.z, prim, prim.z, prevPrim.z);
commands.Add(zIndexCommand);
zIndexCommand.Do();
}
