Transforms in Godot - elegantly solve game programming problems without being a math wizard

Hello Godotneers! When we make games we very often have to do calculations in 2D or 3D space to find out in which direction a character should walk, a projectile should fire or how to rotate a camera when the player moves the mouse. This often requires quite a bit of math which can be challenging in 2D and gets even more complicated in 3D. Godot's transforms provide us with a very neat and elegant way to solve a lot of these problems without needing a math degree. We're going to see how transforms work under the hood and how we can use this information to do things like moving a character relative to his orientation, shooting bullets from the player perspective without calculating a lot of angles and positions, controlling first and third person cameras and build useful node structures that let us do all of this with very little, readable code. So fire up Godot, download the example project and have some fun!

Table of contents
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00:00 Introduction
01:51 A simple 2D game
03:25 Player movement
05:04 Player rotation
07:22 2D Transforms
11:42 Fixing rotation with transforms
15:15 Shooting bolts
17:36 Transform combinations
21:03 Spawning bolts with transforms
25:06 Transform parenting
27:06 Rotating the truss beams
28:30 Keeping the platforms upright
31:57 Node rigs
32:28 Fanning out cards
35:57 A simple 3D game
36:20 Moving the camera
39:08 3D Transforms
43:04 Fixing movement with transforms
45:24 Rotation in 3D
51:12 Euler angles
52:30 Gimbal
54:47 Fixing rotation with node rigs
58:33 Third person camera
1:00:02 Driving physics bodies
1:02:13 Spawning nodes in 3D
1:07:00 Conclusion

Useful links
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The example project that we use in this video - https://github.com/godotneers/transfo...
Godot documentation for transforms - https://docs.godotengine.org/en/stabl...
An introduction into vector math and matrices - https://learnopengl.com/Getting-start...

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