84 lines
1.8 KiB
C++
84 lines
1.8 KiB
C++
//
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// Created by Marcus Vinicius de Carvalho
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//
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#include <iostream>
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#include <string>
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#include <utility>
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using namespace std;
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enum KindOfPolygon {POLY_PLAIN, POLY_RECT, POLY_TRIANG};
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string StringKindofPolygon[] = {"POLY_PLAIN", "POLY_RECT", "POLY_TRIANG"};
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class Polygon {
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protected:
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string name;
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float width;
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float height;
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KindOfPolygon polytype;
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public:
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Polygon(string name, float width, float height) : name(name), width(width), height(height) {
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polytype = POLY_PLAIN;
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}
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KindOfPolygon getPolytype() {
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return polytype;
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}
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void setPolytype(KindOfPolygon value) {
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polytype = value;
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}
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string getName() {
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return name;
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}
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virtual float calArea() = 0;
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void printWidthHeight() const {
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cout << "Width: " << width << "; Height: " << height << endl;
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}
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};
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class Rectangle : public Polygon {
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public:
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Rectangle(string name, float width, float height) : Polygon(std::move(name), width, height) {
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polytype = POLY_RECT;
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}
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float calArea() override {
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return width * height;
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}
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};
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class Triangle : public Polygon {
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public:
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Triangle(string name, float width, float height) : Polygon(std::move(name), width, height) {
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polytype = POLY_TRIANG;
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}
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float calArea() override {
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return width * height * 0.5f;
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}
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};
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class TestPolygon {
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public:
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static void printArea(Polygon& poly) {
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float area = poly.calArea();
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cout << "The area of the " << StringKindofPolygon[poly.getPolytype()] << " is " << area << endl;
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}
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};
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int main() {
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Rectangle rectangle1("Rectangle1", 3.0f, 4.0f);
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rectangle1.printWidthHeight();
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TestPolygon::printArea(rectangle1);
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Triangle triangle1("Triangle1", 3.0f, 4.0f);
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triangle1.printWidthHeight();
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TestPolygon::printArea(triangle1);
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} |