More tutorials: http://iwannacommunity.com/forum/index.php?topic=2610.0
Highly recommend you follow along in Gamemaker! Here's the graphics and song I used: https://www.dropbox.com/s/nhbx051i1ir3l6t/avoidance%20setup%20tutorial%20assets.zip?dl=0
Also when I said "future videos" in the beginning, I'm not saying I'm going to make more avoidance videos! I just meant theoretical videos. Also I forgot to mention, check out the example objMiku in Yoyo's engine to see more (basic) attack examples. Also a typo in objAv1AimPlayer: should set a = 0 in step event, not spacing = 0.

Timestamps:
0:00 - Intro and set up room
1:36 - Set up music
4:25 - t counter and spawn circle
7:12 - Space to print t
8:35 - Curving circle
10:30 - Scroll view up
11:29 - Line/spray of cherries
17:22 - Start at time t
20:28 - Draw t
21:22 - Summary