user controlled added variable pushForce

User can user 1, 2, 3, 4 or 5 key to change the force at which the walker is pushed away from the mouse pointer when the mouse button is pressed.

main.cpp

@@ -1,6 +1,6 @@
 // ReWalker
 // A random walker that moves around the screen with a fading trail and mouse interaction.
-// Now with Spacebar reset functionality!
+// Now with real-time adjustable push force using number keys 1-5!
 // Written using Redacted ReWindow https://git.redacted.cc/Redacted/ReWindow
 // Written by Rich
 // With help from (and thanks to) from Maxine, Josh and Bill
@@ -22,9 +22,6 @@
 // Define fading speed (higher = faster fading, range: 0.001 - 0.2)
 #define FADE_SPEED 0.05f
 
-// Define how strong the push effect is when the mouse is clicked
-#define PUSH_FORCE 3.0f
-
 // Enable debug mode (set to 0 to disable debug output)
 #define DEBUG 0
 
@@ -61,8 +58,9 @@ struct Walker {
      * @brief Pushes the walker away from a given (mouse) position.
      * @param mouseX X coordinate of the mouse.
      * @param mouseY Y coordinate of the mouse.
+     * @param force The force applied to push the walker away.
      */
-    void pushAway(float mouseX, float mouseY) {
+    void pushAway(float mouseX, float mouseY, float force) {
         float adjustedMouseY = HEIGHT - mouseY; // Adjust for coordinate system
 
         float deltaX = x - mouseX;
@@ -75,9 +73,9 @@ struct Walker {
             float unitX = deltaX / distance;
             float unitY = deltaY / distance;
 
-            // Apply push force
-            x = std::clamp(x + unitX * PUSH_FORCE, 0.0f, static_cast<float>(WIDTH - 1));
-            y = std::clamp(y + unitY * PUSH_FORCE, 0.0f, static_cast<float>(HEIGHT - 1));
+            // Apply dynamic push force
+            x = std::clamp(x + unitX * force, 0.0f, static_cast<float>(WIDTH - 1));
+            y = std::clamp(y + unitY * force, 0.0f, static_cast<float>(HEIGHT - 1));
         }
     }
 
@@ -104,7 +102,8 @@ public:
     RandomWalkerWindow(const std::string& title, int width, int height)
         : ReWindow::RWindow(title, width, height),
           walker(std::make_unique<Walker>()),
-          trailBuffer(WIDTH * HEIGHT, 1.0f) // Initialize trail buffer to white (1.0)
+          trailBuffer(WIDTH * HEIGHT, 1.0f), // Initialize trail buffer to white (1.0)
+          pushForce(3.0f) // Default push force
     {}
 
     /**
@@ -135,7 +134,7 @@ public:
         // Move the walker
         walker->step();
 
-        // Update the trail buffer with the walker's current position
+        // Update the trail buffer with the walkers current position
         plotWalker();
 
         // Render the updated trail
@@ -148,6 +147,7 @@ public:
 private:
     std::unique_ptr<Walker> walker;
     std::vector<float> trailBuffer; // Stores grayscale intensity of pixels (1.0 = white, 0.0 = black)
+    float pushForce; // Variable push force that can be adjusted in real time
 
     /**
      * @brief Handles mouse input to push the walker away.
@@ -156,22 +156,28 @@ private:
         auto mousePos = GetMouseCoordinates();
 
         if (IsMouseButtonDown(MouseButtons::Left)) {
-            walker->pushAway(mousePos.x, mousePos.y);
+            walker->pushAway(mousePos.x, mousePos.y, pushForce);
         }
     }
 
     /**
-     * @brief Handles keyboard input to reset the walker.
+     * @brief Handles keyboard input to reset the walker and adjust push force.
      */
     void handleKeyboardInput() {
         if (IsKeyDown(Keys::Space)) {
             walker->resetPosition();
         }
 
-        // Close the window and quit if Escape is pressed
         if (IsKeyDown(Keys::Escape)) {
-            Close(); // This will break the main event loop in main()
+            Close();
         }
+
+        // Adjust push force using number keys 1-5
+        if (IsKeyDown(Keys::One)) pushForce = 1.0f;
+        if (IsKeyDown(Keys::Two)) pushForce = 2.0f;
+        if (IsKeyDown(Keys::Three)) pushForce = 3.0f;
+        if (IsKeyDown(Keys::Four)) pushForce = 4.0f;
+        if (IsKeyDown(Keys::Five)) pushForce = 5.0f;
     }
 
     /**
@@ -197,15 +203,12 @@ private:
                 int py = centerY + dy;
 
                 if (px >= 0 && px < WIDTH && py >= 0 && py < HEIGHT) {
-                    trailBuffer[py * WIDTH + px] = 0.0f; // Set to black (no fade)
+                    trailBuffer[py * WIDTH + px] = 0.0f;
                 }
             }
         }
     }
 
-    /**
-     * @brief Renders the trail buffer to the screen using OpenGL.
-     */
     void drawTrail() {
         std::vector<uint8_t> grayscale(WIDTH * HEIGHT);
         for (size_t i = 0; i < trailBuffer.size(); ++i) {
@@ -215,9 +218,6 @@ private:
     }
 };
 
-/**
- * @brief Main function that creates and runs the ReWindow application.
- */
 int main() {
     auto window = std::make_unique<RandomWalkerWindow>("Random Walker with ReWindow", WIDTH, HEIGHT);
     window->SetRenderer(RenderingAPI::OPENGL);