Pakz001.Raylib-Examples/Functions_-_angledifference.c

#include "raylib.h"
#include <math.h>

static float angledifference(float angle1, float angle2);

int main(void)
{
    // Initialization
    //--------------------------------------------------------------------------------------
    const int screenWidth = 800;
    const int screenHeight = 450;

    InitWindow(screenWidth, screenHeight, "raylib example.");
 
    SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
    //--------------------------------------------------------------------------------------

    // Main game loop
    while (!WindowShouldClose())    // Detect window close button or ESC key
    {
        // Update
        //----------------------------------------------------------------------------------
        
        
        //----------------------------------------------------------------------------------
        // Draw
        //----------------------------------------------------------------------------------
        BeginDrawing();

            ClearBackground(RAYWHITE);
                

        EndDrawing();
        //----------------------------------------------------------------------------------
    }

    // De-Initialization
    //--------------------------------------------------------------------------------------
    CloseWindow();        // Close window and OpenGL context
    //--------------------------------------------------------------------------------------

    return 0;


}


// takes radian iput! <0 is left is shorter else right turn is shorter.
// When it outputs >3 you can asume it aligns with the target(2) angle.
float angledifference(float angle1, float angle2){
    float difference = angle1 - angle2;
    while (difference < -PI){
        difference += (PI*2);
    }
    while (difference > PI){ 
        difference -= (PI*2);
    }
    return difference;

}