add images to readme

.gitignore

@@ -42,3 +42,4 @@ build
 debug
 .cache
 tmp
+screenshot*

README.md

@@ -17,3 +17,7 @@ polypartiCL is licensed with the 3-clause BSD license.
 - Add linear beams
 - Add environment objects / multiple rooms per screen
 - Add timed events
+
+![Screenshot 1](https://alexlardner.com/img/1.png)
+![Screenshot 2](https://alexlardner.com/img/2.png)
+![Screenshot 3](https://alexlardner.com/img/3.png)

src/main.cpp

@@ -67,6 +67,8 @@ int main(int argc, char* argv[]) {
     raylib::Vector2 mouse_i, mouse_f, mouse_d;
     raylib::Vector2 midpoint(screenWidth * 0.5, screenHeight * 0.5);
 
+    raylib::Image screenshot(screenWidth, screenHeight, WHITE);
+
 
     float dirH[2] = {1.0f, 0.0f};
     float dirV[2] = {0.0f, 1.0f};
@@ -89,6 +91,10 @@ int main(int argc, char* argv[]) {
         if (IsKeyPressed(KEY_B)) useShader = !useShader;
         if (IsKeyPressed(KEY_SPACE)) paused = !paused;
         if (IsKeyPressed(KEY_T)) sim.reverseInterval();
+        if (IsKeyPressed(KEY_S)) {
+            screenshot.LoadFromScreen();
+            screenshot.ExportAsCode("screenshot" + std::to_string(window.GetTime()));
+        }
 
         if (!paused) {
             sim.updateFields(window.GetTime());