Modding Help Adding light to a weapon?

The only way possible is to add it through lua.

With that said - the basic concept is below to see how guns are modified through animators.

Code:

function init()
  self.fireOffset = item.instanceValue("fireOffset")
  updateAim()
  self.active = false
  storage.fireTimer = storage.fireTimer or 0
  self.recoilTimer = 0
end
function update(dt, fireMode, shiftHeld)
  updateAim()
  if fireMode == "none" then
    stopFiring()
  end
  storage.fireTimer = math.max(storage.fireTimer - dt, 0)
  self.recoilTimer = math.max(self.recoilTimer - dt, 0)
  if self.active and storage.fireTimer <= 0 then
    if not world.pointTileCollision(firePosition()) then
      storage.fireTimer = item.instanceValue("fireTime", 1.0)
      fire()
    end
  end
  activeItem.setRecoil(self.recoilTimer > 0)
end
function activate(fireMode, shiftHeld)
  if not self.active then
    startFiring()
  end
end
function startFiring()
  self.active = true
end
function stopFiring()
  self.active = false
end
function fire()
  world.spawnProjectile(
      item.instanceValue("projectileType"),
      firePosition(),
      activeItem.ownerEntityId(),
      aimVector(),
      false,
      item.instanceValue("projectileParameters", {})
    )
  animator.burstParticleEmitter("fireParticles")
  animator.playSound("fire")
  animator.setAnimationState("reload", "reload", true)
  self.recoilTimer = 0.12
end
function updateAim()
  self.aimAngle, self.aimDirection = table.unpack(activeItem.aimAngleAndDirection(self.fireOffset[2], activeItem.ownerAimPosition()))
  activeItem.setArmAngle(self.aimAngle)
  activeItem.setFacingDirection(self.aimDirection)
end
function firePosition()
  return vec2.add(mcontroller.position(), activeItem.handPosition(self.fireOffset))
end
function aimVector()
  local aimVector = vec2.rotate({1, 0}, self.aimAngle + sb.nrand(item.instanceValue("inaccuracy", 0), 0))
  aimVector[1] = aimVector[1] * self.aimDirection
  return aimVector
end