161 lines
3.7 KiB
C++
161 lines
3.7 KiB
C++
#include "../../helpers/AnsiConsole.h"
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#include <cmath>
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#include <vector>
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struct Position {
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int x;
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int y;
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explicit Position(int x_ = 0, int y_ = 0) {
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x = x_;
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y = y_;
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}
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};
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class Shape {
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protected:
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Position position;
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Colors color;
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public:
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Shape(Position position, Colors color);
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virtual ~Shape();
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virtual void draw() = 0;
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};
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Shape::Shape(Position position, Colors color) {
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this->position = position;
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this->color = color;
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}
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Shape::~Shape() = default;
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class Point : public Shape{
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public:
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explicit Point(int x, int y, Colors color);
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void draw() override;
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};
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Point::Point(int x, int y, Colors color) : Shape(Position(x, y), color) {
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}
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void Point::draw() {
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ansiConsole.printText(position.x, position.y, "*", color);
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}
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class Circle : public Shape{
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protected:
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int _radius;
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public:
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explicit Circle(int x = 0, int y = 0, int radius = 0, Colors color = Colors::GREEN);
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void draw() override;
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};
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Circle::Circle(int x, int y, int radius, Colors color) : Shape(Position(x, y), color) {
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_radius = radius;
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}
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void Circle::draw() {
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/* see https://de.wikibooks.org/wiki/Formelsammlung_Mathematik:_Geometrie
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* Höhensatz des Euklid
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* */
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int x_start = position.x - _radius / 2;
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int x_stop = position.x + _radius / 2;
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for (int i = x_start; i <= x_stop; i++) {
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double x_relative = double(i) - double(x_start);
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double h = sqrt(x_relative * (x_stop - x_start - x_relative));
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ansiConsole.printText(position.x + int(x_relative) - _radius / 2,
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static_cast<int>(position.y + h), "#",
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color);
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ansiConsole.printText(position.x + int(x_relative) - _radius / 2,
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static_cast<int>(position.y - h), "#",
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color);
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}
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}
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class Rectangle : public Shape{
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protected:
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int width;
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int height;
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public:
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explicit Rectangle(int x = 0, int y = 0, int width = 0, int height = 0, Colors color = Colors::WHITE);
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void draw() override;
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};
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Rectangle::Rectangle(int x, int y, int width, int height, Colors color) : Shape(Position(x, y), color) {
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this->width = width;
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this->height = height;
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}
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void Rectangle::draw() {
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int x_start = position.x - (width / 2);
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int x_stop = position.x + (width / 2);
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int y_start = position.y - (height / 2);
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int y_stop = position.y + (height / 2);
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for(int i = x_start; i <= x_stop; i++) {
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ansiConsole.printText(i, position.y - (height / 2), "#", color);
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ansiConsole.printText(i, position.y + (height / 2), "#", color);
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}
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for(int i = y_start; i< y_stop; i++) {
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ansiConsole.printText(position.x + (width / 2), i, "#", color);
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ansiConsole.printText(position.x - (width / 2), i, "#", color);
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}
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}
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class Scene {
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private:
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std::vector<Shape*> shapes;
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public:
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explicit Scene(std::vector<Shape*> shapes);
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void draw();
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~Scene();
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};
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Scene::Scene(std::vector<Shape*> shapes) : shapes(std::move(shapes)) {
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}
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void Scene::draw() {
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ansiConsole.clearScreen();
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for(Shape* shape : shapes) {
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shape->draw();
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}
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}
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Scene::~Scene() {
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for(Shape* shape : shapes) {
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delete shape;
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}
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}
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int main(int argc, char **argv) {
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std::vector<Shape*> shapes;
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shapes.push_back(new Point(30, 10, Colors::RED));
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shapes.push_back(new Point(28, 8, Colors::BLUE));
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shapes.push_back(new Point(32, 8, Colors::BLUE));
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shapes.push_back(new Circle(30, 10, 10, Colors::WHITE));
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shapes.push_back(new Circle(30, 20, 15, Colors::GREEN));
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shapes.push_back(new Rectangle(5, 21, 10, 10, Colors::MAGENTA));
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auto *s = new Scene(shapes);
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s->draw();
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delete s;
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return 0;
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}
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