Practical BAR Modding Notes from Modding-0108

Bulk unit definition edits in BAR. Why iterating the entire UnitDefs table for single-unit changes wastes cycles.

Stop iterating all unit defs for single-unit changes

A common pattern in early modding sessions loops through every unit definition just to change a commander or two. This runs unnecessary iterations across the entire roster. When the target unit is known, direct lookup replaces the entire loop:

UnitDefs["armck"].metalcost = 0.001
UnitDefs["armck"].energycost = 0.001

Full iteration only makes sense when applying changes across faction groups. For individual units, direct access is cleaner and faster.

Bulk faction-based edits with string prefix matching

When changing every unit in a faction, checking name prefixes works. The pattern uses string.sub(name,1,3) to match faction codes like "arm", "cor", "leg". A bulk cost edit looks like this:

for name, ud in pairs(UnitDefs) do
  if string.sub(name,1,3) == "leg"
    or string.sub(name,1,4) == "leeg"
    or string.sub(name,1,3) == "arm"
    or string.sub(name,1,3) == "cor" then
    ud.metalcost = ud.metalcost or 0.001
    ud.energycost = ud.energycost or 0.001
  end
end

This applies changes across all matching units in a single pass. Each faction prefix check adds minimal overhead.

Replacing buildoptions on a single unit

Overwriting the buildoptions table for one unit requires a direct assignment:

for name, ud in pairs(UnitDefs) do
  if name == "corlab" then
    ud.buildoptions = {[1] = "corck"}
  end
end

Again, this loop is overkill for a single target. Direct access achieves the same result with less iteration. The loop pattern matters more when the change affects multiple units sharing a naming convention.

Commander model imports and 3D assets

Players importing commander 3D models into Blender sometimes find extra mesh components they do not recognize. Crown and medal meshes exist on some commander models as visual accessories. These are separate from the main commander body mesh.

Creed of Champions

Efficient modding mirrors efficient team play. Use the right tool for the scope of the problem. Teams that match their tactics to the situation waste less and accomplish more.

One of the few places where you can for sure coordinate with people in matches with a good supportive attitude. Everybody tends to be understanding and constructive.