/**  ~~~~~
 * Created with the AppyBuilder Code Editor.
 * This is a template for basic Extension.
 * Modify this template to customize your extension.
 *
 * **** NOTE: DO NOT use a package name. 
 * **** The package name will be created for you automatically.
 * **** Adding a package name will cause a compile error
 */
import android.content.Context;
import android.util.Log;
import com.google.appinventor.components.annotations.*;
import com.google.appinventor.components.runtime.*;
import com.google.appinventor.components.common.ComponentCategory;

@DesignerComponent(version = 2,  description = "Calculates some basic geometrical shapes'areas.",
        category = ComponentCategory.EXTENSION,
        nonVisible = true,   iconName = "https://lh3.googleusercontent.com/ogw/ADea4I42VqEybFK87QSOLCsJXghDvdf0uhA3Rya5Li0g=s32-c-mo")
@SimpleObject(external = true)
public class Maths extends AndroidNonvisibleComponent {
    private ComponentContainer container;
    /**
     * @param container container, component will be placed in
     */
    public Maths(ComponentContainer container) {
        super(container.$form());
        this.container = container;
    }
  
  
  @SimpleFunction(description = "Calculates the area of a square.")
    public double AreaOfSquare (double side) { 
    return side * side; 

    }
  @SimpleFunction(description = "Calculates the perimeter of a square.")
    public double PerimeterOfSquare (double side) { 
    return side * side; 

    }
  @SimpleFunction(description = "Calculates the perimeter of a rectangle.")
    public double PerimeterOfRectangle (double length, double width) { 
    return length * width; 

    }
  @SimpleFunction(description = "Calculates the area of a rectangle.")
    public double AreaOfRectangle (double length, double width) { 
    return length * width; 

    }
  @SimpleFunction(description = "Calculates the area of a triangle.")
    public double AreaOfTriangle (double base, double height) { 
    return base * height / 2; 

    }
  @SimpleFunction(description = "Calculates the perimeter of an isoceles triangle.")
    public double PerimeterOfIsocelesTriangle (double leg, double base) { 
    return leg + leg + base; 

    }
  @SimpleFunction(description = "Calculates the perimeter of an equilateral triangle.")
    public double PerimeterOfEquilateralTriangle (double side) { 
    return side * 3; 

    }
  @SimpleFunction(description = "Calculates the area of a right-angled triangle.")
    public double AreaOfRightIsocelesTriangle (double side) { 
    return side * side / 2; 

    }
  @SimpleFunction(description = "Calculates the area of a trapezium.")
    public double AreaOfTrapezium (double upper, double lower, double height) { 
    return (upper + lower) * height / 2; 

    }
  @SimpleFunction(description = "Calculates the area of a circle.")
    public double AreaOfCircle (double radius) { 
    return radius * radius * 3.14; 

    }
  @SimpleFunction(description = "Calculates the radius of a circle from a diameter.")
    public double Radius (double diameter) { 
    return diameter / 2; 

    }
  @SimpleFunction(description = "Calculates the diameter of a circle from a radius.")
    public double Diameter (double radius) { 
    return radius * 2; 

    }
  @SimpleFunction(description = "Calculates the perimeter of a circle.")
    public double PerimeterOfCircle (double diameter) { 
    return diameter * 3.14; 

    }
  @SimpleFunction(description = "Calculates the perimeter of a regular pentagon. A regular pentagon's sides are equal in length.")
    public double PerimeterOfRegularPentagon (double side) { 
    return side * 5; 

    }
  @SimpleFunction(description = "Calculates the perimeter of a regular hexagon. A regular hexagon's sides are equal in length.")
    public double PerimeterOfRegularHexagon (double side) { 
    return side * 6; 

    }
}