Added some damage indicator placeholders to #RulerOfRoguemount now that units can actually take damage and even die.

As always, art assets were purchased off-the-shelf from itch.io (the explosion in particular comes from here: https://free-game-assets.itch.io/pixel-art-magic-sprite-sheet-effects)

#Godot #PixelArt #IndieDev #SoloDev