ToME: the Tales of Maj'Eyal

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local base_projectDoMove = _M.projectDoMove
function _M:projectDoMove(typ, tgtx, tgty, x, y, srcx, srcy)
	--reference our projectile from its location
	local projectile = game.level.map(x, y, game.level.map.PROJECTILE)
	local src = projectile.src
	--call the original function to see where we're going
	local retx, rety, retact, retstop = base_projectDoMove(self, typ, tgtx, tgty, x, y, srcx, srcy)
	
	--look for an actor in the space we're about to move, and deflect the projectile
	local actor = game.level.map(retx, rety, game.level.map.ACTOR)
	if actor and actor:attr("stoic_deflection") and src ~= actor then
		game.logSeen(actor, "%s deflects the %s from %s!", actor.name:capitalize(), projectile.name:capitalize(), src.name:capitalize())
		
		--update the projectile's source/actor coordinates and overwrite its line_function to match, so it flies in the correct direction
		projectile.project.def.tg.act_exclude = {[actor.uid]=true} --make sure deflected aoes never hit the actor
		projectile.project.def.x, projectile.project.def.y = src.x, src.y
		projectile.project.def.start_x, projectile.project.def.start_y = actor.x, actor.y
		if actor.lineFOV then
			projectile.project.def.typ.line_function = actor:lineFOV(src.x, src.y, nil, nil, actor.x, actor.y)	
		else
			projectile.project.def.typ.line_function = core.fov.line(actor.x, actor.y, src.x, src.y)
		end
		--actor still gets hit if they walk into it, this is covered in superload\engine\Projectile.lua on_move()

		--send our new direction to the old function to get which way to move
		retx, rety, retact, retstop = base_projectDoMove(self, projectile.project.def.typ, src.x, src.y, x, y, actor.x, actor.y)
	end

	return retx, rety, retact, retstop
end