// AUTHORED SHIM (not copied). Minimal no-op UnityEngine surface. Grows via the
// Task 4 compile loop -- add only members the compiler actually demands.
namespace UnityEngine
{
    public struct Vector2 { public float x, y; public Vector2(float x, float y){ this.x=x; this.y=y; } }
    public struct Vector3
    {
        public float x, y, z;
        public Vector3(float x, float y, float z){ this.x=x; this.y=y; this.z=z; }
        public static Vector3 zero => new Vector3(0,0,0);
        public static Vector3 operator +(Vector3 a, Vector3 b) => new Vector3(a.x+b.x, a.y+b.y, a.z+b.z);
    }
    public struct Quaternion
    {
        public float x, y, z, w;
        public static Quaternion identity => new Quaternion { x=0, y=0, z=0, w=1 };
        public static Quaternion Euler(float x, float y, float z) => new Quaternion();
    }
    public struct Color { public float r, g, b, a; public Color(float r,float g,float b,float a){ this.r=r; this.g=g; this.b=b; this.a=a; } }
    public static class Mathf
    {
        public const float PI = 3.14159265f;
        public static float Floor(float f) => (float)System.Math.Floor(f);
        public static int FloorToInt(float f) => (int)System.Math.Floor(f);
        public static float Max(float a, float b) => System.Math.Max(a, b);
        public static float Min(float a, float b) => System.Math.Min(a, b);
        public static float Clamp(float v, float lo, float hi) => System.Math.Max(lo, System.Math.Min(hi, v));
    }
    public static class Debug
    {
        public static void Log(object m) { }
        public static void LogWarning(object m) { }
        public static void LogError(object m) { }
    }
}