For day 1151 of coding, I made a moving "enemy" to test enemy collision while it's moving. The results are interesting, and will need to be looked into why

For day 1147 of coding, I put a red shader on the player when the knockback happens. I'll need to see if I can apply a similar shader during the invulnerability period

For day 1146 of coding, I tried shortening the invulnerability period and making the "blinks" more rapid to see how it looks overall

For day 1145 of coding, I've added the invulnerability time to the lower left portion of the debug screen

For day 1153 of coding, I think I fixed an issue where an infinite loop is caused by the moving object. Now it seems that the player is being knocked back in a weird direction

For day 1150 of coding, I tried adding yellow through the draw_sprite's image blending to see how it looks

For day 1149 of coding, I've managed to replace the image blend with the appropriate shader

For day 1154 of coding, I have fixed the weird knockback direction. I just had to make sure the origin point is on the right position on the sprite

For day 1152 of coding; I fixed the issue with getting hurt during the invulnerability period, but now there are other collision issues that need addressing

For day 1148 of coding, I've added a flashing red color blend during the invulnerability period. I am currently working on how to apply it as a shader instead