96 lines
1.8 KiB
C++
96 lines
1.8 KiB
C++
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// g++ test_generate_patterns.cpp -lsfml-graphics -lsfml-window -lsfml-system -lX11 -lGL
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#include <cstdint>
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#include <cstdlib>
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#include <cstring>
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#include <iostream>
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#include <SFML/Graphics.hpp>
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using namespace std;
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using namespace sf;
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uint8_t pattern[8];
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int x = 0, y = 0;
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void outpattern() {
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cout << "\"";
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for (int i = 0; i < 8; i++)
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printf("\\x%02x", pattern[i]);
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cout << "\"" << endl;
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}
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void setbit(int x, int y, bool value) {
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if (x < 0 || x > 7 || y < 0 || y > 7)
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return;
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uint8_t &target = pattern[y];
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if (value) { // set to 1
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uint8_t mask = 1 << (7 - x);
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target |= mask;
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} else { // set to 0
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uint8_t mask = ~(1 << (7 - x));
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target &= mask;
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}
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}
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bool getbit(int x, int y) {
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if (x < 0 || x > 7 || y < 0 || y > 7)
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return false;
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uint8_t &target = pattern[y];
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uint8_t mask = 1 << (7 - x);
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return (target & mask) != 0;
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}
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int main() {
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memset(pattern, -1, sizeof(pattern));
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RenderWindow win(VideoMode(400, 400), "Generator");
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win.setVerticalSyncEnabled(true);
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win.setFramerateLimit(120);
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outpattern();
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setbit(0, 0, false);
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outpattern();
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while (win.isOpen()) {
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Event e;
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while (win.pollEvent(e)) {
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if (e.type == Event::KeyPressed) {
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switch (e.key.code) {
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case Keyboard::Up:
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y--;
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break;
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case Keyboard::Down:
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y++;
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break;
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case Keyboard::Left:
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x--;
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break;
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case Keyboard::Right:
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x++;
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break;
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}
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setbit(x, y, false);
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outpattern();
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} else if (e.type == Event::Closed)
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win.close();
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}
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win.clear();
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for (int i = 0; i < 8; i++)
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for (int j = 0; j < 8; j++) {
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if (getbit(i, j)) {
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RectangleShape rect(Vector2f(50, 50));
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rect.setPosition(i * 50, j * 50);
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rect.setFillColor(Color::White);
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win.draw(rect);
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}
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}
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win.display();
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}
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}
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