Creating an Enemy Spawning Mechanic for Tower Defense Games.

Following on from my last post where I spoke a little about the enemy spawning, In this post I will talk more about how I created it and where I went wrong and how I overcome these issues.

The first design I thought about using was a waypoint system so the Ai would go up a list and continue to move to the next one, whilst this did work I ran into problems of spawning the waypoints for each map due to the procedural generation,

After running into this problem I figured out that a better way to do this is, instead of going towards a waypoint that I had placed along the path i used each individual tile as the waypoint, this allowed me to remove all the waypoints saving on performance and meant that the pathing that i had already grouped together could then be used for this as well, This worked amazingly.

As part of this script i have made sure to make it modular to allow for each future type of enemy that can be spawned is able to have its own attributes such as speed and health, with the current 2 types of enemy being a slower but with more health type and a fast but can be one shot enemy.

Below is the script that i used for this, Whilst some changes do still need to be made mainly around enemies moving inside of each other the script itself works well, and will be the foundation of all future changes to do with the movement.