CHANGES OR FIXES

• added the engineer, creates small temporary crossbow towers, and they only patrol around the engineer flag, allowing for more strategy and planning (you can only have 10 engineers at a time and 25 crossbow turrets at a time)
• added the workshop that spawns the engineer, costs 100 gold
• buffed the walls strength (100 health to 300 health)
• reduced the wall cost to 5 coins
• fixed a bug with the medic
• added 2 new enemies, the big tree, and the slime, decent speed and health
• after a a while enemies will gain bonus health to make em harder to kill, they gain +2 health every 120 seconds after that
• added the golden wall, (has 900 hp) (costs 15 gold) (good for late-game plays)
• crossbow turrets when upgraded get more range
• updated the barracks, archer and castle texture
• the necromancer now fire wizard balls
• added a feature where if an enemy NPC cannot move (due to and engine glitch) they will be deleted for room for another NPCc
• crossbow towers arrows are faster
• necromancers have shorter range
• necromancers spawn speed has been set to 3 seconds, but spawn 3 skeletons instead