From 110481bee48bdb18f3d635cbc507aac1acc7c694 Mon Sep 17 00:00:00 2001
From: angeld55 <angel_dimitriev@abv.bg>
Date: Tue, 24 May 2022 20:10:50 +0300
Subject: added shapes collection

---
 Sem. 12/Example_polymorphism/Circle.cpp    |  7 ++++++-
 Sem. 12/Example_polymorphism/Circle.h      |  1 +
 Sem. 12/Example_polymorphism/Rectangle.cpp |  9 ++++++++-
 Sem. 12/Example_polymorphism/Rectangle.h   |  2 ++
 Sem. 12/Example_polymorphism/Shape.h       |  2 ++
 Sem. 12/Example_polymorphism/Triangle.cpp  | 12 ++++++++++++
 Sem. 12/Example_polymorphism/Triangle.h    |  2 ++
 Sem. 12/Example_polymorphism/main.cpp      | 27 ++++++++++++++++++++++++++-
 8 files changed, 59 insertions(+), 3 deletions(-)

(limited to 'Sem. 12/Example_polymorphism')

diff --git a/Sem. 12/Example_polymorphism/Circle.cpp b/Sem. 12/Example_polymorphism/Circle.cpp
index 8226582..c0368a0 100644
--- a/Sem. 12/Example_polymorphism/Circle.cpp	
+++ b/Sem. 12/Example_polymorphism/Circle.cpp	
@@ -13,4 +13,9 @@ double Circle::getArea() const
 double Circle::getPer() const
 {
 	return 2 * PI * radius;
-}
\ No newline at end of file
+}
+bool Circle::isPointIn(int x, int y) const
+{
+	Shape::point p(x, y);
+	return p.getDist(getPointAtIndex(0)) <= radius;
+}
diff --git a/Sem. 12/Example_polymorphism/Circle.h b/Sem. 12/Example_polymorphism/Circle.h
index 6449fc1..bf8a692 100644
--- a/Sem. 12/Example_polymorphism/Circle.h	
+++ b/Sem. 12/Example_polymorphism/Circle.h	
@@ -10,5 +10,6 @@ public:
 
 	double getArea() const override;
 	double getPer() const override; 
+	bool isPointIn(int x, int y) const override;
 
 };
\ No newline at end of file
diff --git a/Sem. 12/Example_polymorphism/Rectangle.cpp b/Sem. 12/Example_polymorphism/Rectangle.cpp
index 3fa1026..3797b41 100644
--- a/Sem. 12/Example_polymorphism/Rectangle.cpp	
+++ b/Sem. 12/Example_polymorphism/Rectangle.cpp	
@@ -23,4 +23,11 @@ double Rectangle::getPer() const
 	Shape::point p3 = getPointAtIndex(3);
 
 	return 2*(p0.getDist(p1) + p0.getDist(p3));
-}
\ No newline at end of file
+}
+
+bool Rectangle::isPointIn(int x, int y) const
+{
+	Shape::point p(x, y);
+	return p.x >= getPointAtIndex(0).x && p.y >= getPointAtIndex(1).x &&
+		p.y <= getPointAtIndex(0).y && p.y >= getPointAtIndex(2).y;
+}
diff --git a/Sem. 12/Example_polymorphism/Rectangle.h b/Sem. 12/Example_polymorphism/Rectangle.h
index ccdad8e..b689637 100644
--- a/Sem. 12/Example_polymorphism/Rectangle.h	
+++ b/Sem. 12/Example_polymorphism/Rectangle.h	
@@ -7,4 +7,6 @@ public:
 	Rectangle(int x1, int y1, int x3, int y3);
 	double getArea() const override;
 	double getPer() const override;
+	bool isPointIn(int x, int y) const override;
+
 };
\ No newline at end of file
diff --git a/Sem. 12/Example_polymorphism/Shape.h b/Sem. 12/Example_polymorphism/Shape.h
index 62f5c41..6e189d7 100644
--- a/Sem. 12/Example_polymorphism/Shape.h	
+++ b/Sem. 12/Example_polymorphism/Shape.h	
@@ -38,4 +38,6 @@ public:
 
 	virtual double getArea() const = 0; //pure virtual
 	virtual double getPer()  const = 0; // pure virtual
+	virtual bool isPointIn(int x, int y) const = 0;
+
 };
\ No newline at end of file
diff --git a/Sem. 12/Example_polymorphism/Triangle.cpp b/Sem. 12/Example_polymorphism/Triangle.cpp
index 7de831c..4463ccc 100644
--- a/Sem. 12/Example_polymorphism/Triangle.cpp	
+++ b/Sem. 12/Example_polymorphism/Triangle.cpp	
@@ -1,4 +1,5 @@
 #include "Triangle.h"
+#include <limits>
 
 Triangle::Triangle(int x1, int y1, int x2, int y2, int x3, int y3) : Shape(3)
 {
@@ -21,4 +22,15 @@ double Triangle::getPer() const
 	Shape::point p3 = getPointAtIndex(2);
 
 	return p1.getDist(p2) + p2.getDist(p3) + p3.getDist(p1);
+}
+
+bool Triangle::isPointIn(int x, int y) const
+{
+	Shape::point p(x, y);
+	Triangle t1(getPointAtIndex(0).x, getPointAtIndex(0).y, getPointAtIndex(1).x, getPointAtIndex(1).y, p.x, p.y);
+	Triangle t2(getPointAtIndex(2).x, getPointAtIndex(2).y, getPointAtIndex(1).x, getPointAtIndex(1).y, p.x, p.y);
+	Triangle t3(getPointAtIndex(2).x, getPointAtIndex(2).y, getPointAtIndex(0).x, getPointAtIndex(0).y, p.x, p.y);
+
+	return abs(t1.getArea() + t2.getArea() + t3.getArea() - getArea()) <= std::numeric_limits<double>::epsilon();
+
 }
\ No newline at end of file
diff --git a/Sem. 12/Example_polymorphism/Triangle.h b/Sem. 12/Example_polymorphism/Triangle.h
index c157de8..3f7f8cb 100644
--- a/Sem. 12/Example_polymorphism/Triangle.h	
+++ b/Sem. 12/Example_polymorphism/Triangle.h	
@@ -9,4 +9,6 @@ public:
 	Triangle(int x1, int y1, int x2, int y2, int x3, int y3);
 	double  getArea() const override;
 	double getPer() const override;
+	bool isPointIn(int x, int y) const override;
+
 };
\ No newline at end of file
diff --git a/Sem. 12/Example_polymorphism/main.cpp b/Sem. 12/Example_polymorphism/main.cpp
index 89a5082..5d7fc69 100644
--- a/Sem. 12/Example_polymorphism/main.cpp	
+++ b/Sem. 12/Example_polymorphism/main.cpp	
@@ -17,12 +17,33 @@ void printPers(const Shape* const * shapes, size_t shapesCount)
 		cout << shapes[i]->getPer() << endl;
 }
 
+void checkPointIn(const Shape* const* shapes, size_t shapesCount, int x, int y)
+{
+	for (int i = 0; i < shapesCount; i++)
+		cout << shapes[i]->isPointIn(x,y) << endl;
+}
+
 void freeCollection(Shape** shapes, size_t shapesCount)
 {
 	for (int i = 0; i < shapesCount; i++)
 			delete shapes[i];
 		delete[] shapes;
 }
+
+struct A
+{
+	virtual void f() const
+	{
+		;
+	}
+};
+struct B : public A
+{
+	void f() const final
+	{
+
+	}
+};
 int main()
 {
 		Shape** arr = new Shape*[4];
@@ -33,9 +54,13 @@ int main()
 		arr[3] = new Triangle(1, 1, 2, 2, 3, 3);
 
 		printAreas(arr, 4);
+		std::cout << endl;
 		printPers(arr, 4);
+		std::cout << endl;
+
+		checkPointIn(arr, 4, 3, 3);
+		
 
 		freeCollection(arr, 4);
 	
-
 }
\ No newline at end of file
-- 
cgit v1.3.1-23-gd82d