Cannot Select Script Function in OnClick for Buttons

I Can't seem to make a button display any functions from scripts,
the functions are all Public and void, i dont understand why it wont show the functions in the Onclick Menu

sing System.Collections;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;


namespace GameRPS
{
public class Calculate : MonoBehaviour
{
static void Main(string[] args)
{
CalculateHP(1, 0);
}

static double Equation(double Damage, double Temp)
{
if (Temp > 0)
{
double a, b, c;
a = Damage / 2;
b = a + Temp;
c = b - 50;
return c;
}
else
{
double d, e, f;
d = Damage / 2;
e = d - Temp;
f = e - 50;
return f;
}
}



public static void CalculateHP(int userinput1, int userinput2)
{
double[,] numbers = new double[,] {
{75, 25},
{40, -40},
{45, 38},
{60, 35},
{40, -45},
{77, 25},
{8, -60},
{73, 27},
{85, 21},
{32, -58.5},
{100, 16},
{34, 50},
{82, 25},
{30, -53.5},
{40, -47},
{33, 54},
{27, 59.5},
{45, 50.5},
{11, 65.5},
{36, 52.5},
{34, 58.5},
{53, -49},
{5, -73},
{17, -68},
{47, 56},
{22, -70},
{100, -32.5},
{2, -81.5},
{97, 38},
{72, 47},
{102, 32.5},
{110, 30},
{70, -45},
{65, 52.5},
{100, -30.5},
{45, -63},
{92, -52.5},
{86, 43},
{100, -38.5},
{87, -43.5},
{106, 41.5},
{86, -50},
{76, 54.5},
{96, -46.5},
{94, 44.5},
{86, 55.5},
{96, 48.5},
{15, 90},
{10, -91.5},
{50, 74},
{66, -87},
{100, 65},
{130, 95},
{98, 58},
{100, 76},

};

//previous intergers already declaired
//numbers will be imported from array
double health1 = 75;
double health2 = 75;
double endhealth1;
double endhealth2;
double statsplayer1;
double statsplayer2;
statsplayer1 = Calculate.Equation(numbers[userinput1, 0], numbers[userinput1, 1]);
statsplayer2 = Calculate.Equation(numbers[userinput2, 0], numbers[userinput2, 1]);
if (statsplayer1 > statsplayer2)
{
double h;
h = numbers[userinput1, 0];
endhealth1 = health2 - h;
if (endhealth1 == 0)
{
//player 1 dies
//add in scene switch here
Console.WriteLine("player one dies");

}
}
else
//where stats player 2 > stats player 1
{
double i;
i = numbers[userinput2, 0];
endhealth2 = health1 - i;
if (endhealth2 == 0)
{
//player 2 dies
//add in scene switch here
Console.WriteLine("player two dies");

}
}
}

public void Attacks(int attack1, int attack2, int attack3, int attack4, int attack5){
PlayerPrefs.SetInt("Selection1", attack1);
PlayerPrefs.SetInt ("Selection2", attack2);
PlayerPrefs.SetInt ("Selection3", attack3);
PlayerPrefs.SetInt ("Selection4", attack4);
PlayerPrefs.SetInt ("Selection5", attack5);
}
}
}

 

OK:
Issue 1: You are using the "static" flag on your public functions. for them to show up for events you can't use this.
Issue 2: The "Attacks" function has 5 parameters, the maximum Unity UI events can handle at the moment is 4 (but you could extend this yourself )

Hope this helps

For functions in a script to be accessible by the UnityEvent property drawer on UI components, they must:
1: be attached to a GameObject
2: be simple public functions
3: User base C# data types (int, float, string, etc)
4: have 0 - 4 parameters

 

@SimonDarksideJ Thanks, it worked

 

Glad it helped, now soldier on with your UI