This script is supposed to be called whenever a simple key combination is pressed. It checks if other non-modifier keys are pressed, thereby extending the keybinding to do things like super + up + right to move your window to the top right of the screen. I use this script with jwm (Joe's Window Manager).
I've hardcoded in the locations and sizes for my monitor since xdotool can't account for the size of jwm's taskbar. Depending on your keyboard, some key combinations just won't work; on my (otherwise nice) Thinkpad T470, I can't do super + down + right. This is called key ghosting.
If this is your first time dealing with C code in a while,
pacman -Syu libx11 # install libraries
pkg-config --cflags --libs X11 # find compiler flags
pacman -Qlq libx11 | grep .pc # find pkg-config files
gcc -lX11 main.c -o main # compile
./main # run