Move amt's examples into scratchpad for later review.

scratchpad/amt/main.cpp

@@ -0,0 +1,93 @@
+#include "amt/raycaster.hpp"
+#include <iostream>
+#include <chrono>
+#include <numeric>
+#include <functional>
+#include "constants.hpp"
+#include "stats.hpp"
+
+Matrix MAP{
+  {1,1,1,1,1,1,1,1,1},
+  {1,0,2,0,0,0,0,0,1},
+  {1,0,4,0,0,5,2,0,1},
+  {1,0,0,0,0,0,0,0,1},
+  {1,1,0,0,0,0,0,1,1},
+  {1,0,0,1,3,4,0,0,1},
+  {1,0,0,0,0,0,1,1,1},
+  {1,0,0,0,0,0,0,0,1},
+  {1,1,1,1,1,1,1,1,1}
+};
+
+void draw_gui(sf::RenderWindow &window, sf::Text &text, Stats &stats) {
+  sf::RectangleShape rect({SCREEN_WIDTH - RAY_VIEW_WIDTH, SCREEN_HEIGHT});
+
+  rect.setPosition({0,0});
+  rect.setFillColor({50, 50, 50});
+  window.draw(rect);
+
+  text.setString(
+    fmt::format("FPS\nmean:{:>8.5}\nsdev: {:>8.5}\nmin: {:>8.5}\nmax: {:>8.5}\ncount:{:<10}\n\nVSync? {}\nDebug? {}\n\nHit R to reset.",
+      stats.mean(), stats.stddev(), stats.min, stats.max, stats.n, VSYNC, DEBUG_BUILD));
+  window.draw(text);
+}
+
+int main() {
+  sf::RenderWindow window(sf::VideoMode({SCREEN_WIDTH, SCREEN_HEIGHT}), "Zed's Ray Caster Game Thing");
+
+  sf::Font font{"./assets/text.otf"};
+  sf::Text text{font};
+  text.setFillColor({255,255,255});
+  text.setPosition({10,10});
+
+  //ZED this should set with a function
+  float player_x = MAP.rows() / 2;
+  float player_y = MAP.cols() / 2;
+
+  Raycaster rayview(window, MAP, RAY_VIEW_WIDTH, RAY_VIEW_HEIGHT);
+  rayview.set_position(RAY_VIEW_X, RAY_VIEW_Y);
+  rayview.position_camera(player_x, player_y);
+
+  double moveSpeed = 0.1;
+  double rotSpeed = 0.1;
+
+  const auto onClose = [&window](const sf::Event::Closed&)
+  {
+      window.close();
+  };
+
+  Stats stats;
+
+  // NOTE: Enable this to lock frames at 60
+  window.setFramerateLimit(60);
+
+  while(window.isOpen()) {
+    auto start = std::chrono::high_resolution_clock::now();
+    rayview.render();
+    auto end = std::chrono::high_resolution_clock::now();
+    auto elapsed = std::chrono::duration<double>(end - start);
+    stats.sample(1/elapsed.count());
+
+    draw_gui(window, text, stats);
+    window.display();
+
+    if(sf::Keyboard::isKeyPressed(sf::Keyboard::Key::W)) {
+      rayview.run(moveSpeed, 1);
+    } else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Key::S)) {
+      rayview.run(moveSpeed, -1);
+    }
+
+    if(sf::Keyboard::isKeyPressed(sf::Keyboard::Key::D)) {
+      rayview.rotate(rotSpeed, -1);
+    } else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Key::A)) {
+      rayview.rotate(rotSpeed, 1);
+    }
+
+    if(sf::Keyboard::isKeyPressed(sf::Keyboard::Key::R)) {
+      stats.reset();
+    }
+
+    window.handleEvents(onClose);
+  }
+
+  return 0;
+}