Week 4

This week i've been focussing on trying to get better balancing between turret damage, AI health, points awarded per kill and buy/upgrade costs for the turrets. I've also successfully created a semi random spawn system for the enemy. This system allows for set numbers of each enemy to spawn each round and is easy to add in additional enemy types down the line.
Made some minor changes to the popup information when the turrets are clicked on, changing  some from showing DPS to showing damage or slow percentage.

Every 5 waves now increases the number of special enemies that are to spawn alongside the basic ones. Each wave also increases the health of each enemy spawned. 

Next step is to start adding some  graphics to polish things a bit. Also a main menu and high score system.