3D-Rendering-Engine-in-C

WindowsApi
written in C
I have not cleaned up the code yet!

Contorl

Up : space
Down : shift
Move : w,a,s,d
Rotation : ↑,↓,←,→

ScreenShots

Main&Important Code

Coordinate_axis in this project

Rotation matrix

Horizontal_rotation * Vertical_rotation

Get Coordinate to output

Moving Coordinate Calculation

Let "Horizontal rotation" be "H"and "Distance traveled" be "D"
The player's "Horizontal rotation" value is stored in degree,
So, when calculating, it should be calculated as radian value.
Therefore, H = (Horizontal rotation) * (PI / 180).

When moving forward

player_x += cos(H + (π / 2)) * (-D)
player_z += sin(H + (π / 2)) * D

When moving backward

player_x += cos(H - (π / 2)) * (-D)
player_z += sin(H - (π / 2)) * D

When moving left

player_x += cos(H + π) * D
player_z += sin(H + π) * (-D)

When moving right

player_x += cos(H) * D
player_z += sin(H) * (-D)