111 lines
2.9 KiB
C++
111 lines
2.9 KiB
C++
/*#############################################################################
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## Author: Shaun Reed ##
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## Legal: All Content (c) 2019 Shaun Reed, all rights reserved ##
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## Requires SDL: `sudo apt-get install libsdl2-dev` ##
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## To build an executable: `g++ inherited.cpp -lSDL2 -o test` ##
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## ##
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## Contact: shaunrd0@gmail.com | URL: www.shaunreed.com | GitHub: shaunrd0 ##
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##############################################################################
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## apps/inherited.cpp
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*/
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#include <iostream>
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#include <string>
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#include <SDL2/SDL.h>
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#include <vector>
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class Shape {
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private:
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double width, height;
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std::string info;
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const std::string name = "Shape";
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public:
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Shape(double w, double h) {
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height = h;
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width = w;
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};
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Shape() {
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height = 2;
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width = 2;
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};
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~Shape() { /* Shape destructor */};
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virtual const std::string PrintInfo() {
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info = name + " HxW: " + std::to_string(height) + "x" + std::to_string(width);
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return info;
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};
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};
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class Rectangle: public Shape {
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private:
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double width, height;
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std::string info;
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public:
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Rectangle(double w, double h) {
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height = h;
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width = w;
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};
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Rectangle() {
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height = 2;
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width = 4;
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};
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~Rectangle() { /* Rectangle destructor */ };
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};
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int InitScreen(SDL_Window* &window, SDL_Renderer* &renderer) {
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int state = 0;
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// Create window, renderer to draw to screen
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if (SDL_CreateWindowAndRenderer(500, 500, 0, &window, &renderer) < 0) {
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std::cout << "Error - Unable to create SDL screen and renderer objects\n";
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state = -1;
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}
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// Set render DrawColor, fill screen with color
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if (SDL_SetRenderDrawColor(renderer, 0, 255, 0, 255) < 0 || SDL_RenderClear(renderer) < 0) {
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std::cout << "Error - Unable to set renderer draw color\n";
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state = -1;
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}
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return state;
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}
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void DrawDelay(SDL_Renderer* renderer, int delay) {
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// Show what we have rendered
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SDL_RenderPresent(renderer);
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// Wait 3000ms, then continue
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SDL_Delay(delay);
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return;
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}
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int main (int argc, char const * argv[]) {
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// Cast cli arguments to void since they are unused in this exe
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(void)argc;
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(void)argv;
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// Ensure SDL is initialized before continuing
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if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
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exit(2);
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SDL_Window *window;
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SDL_Renderer *renderer;
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if (InitScreen(window, renderer) < 0)
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std::cout << "Error - Unable to initialize SDL screen\n";
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DrawDelay(renderer, 3000);
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std::cout << "Test\n";
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Shape shape(4,4), dShape;
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Rectangle rect(4,8), dRect;
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std::cout << dShape.PrintInfo() << std::endl;
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std::cout << shape.PrintInfo() << std::endl;
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std::cout << dRect.PrintInfo() << std::endl;
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std::cout << rect.PrintInfo() << std::endl;
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return 0;
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}
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