small tweeks

CMakeLists.txt

@@ -28,20 +28,39 @@ include(cmake/CPM.cmake)
 # You specify the release name to target against. See the link below for releases:
 # https://git.redacted.cc/Redacted/ReWindow/releases
 
+CPMAddPackage(
+        NAME mcolor
+        URL https://git.redacted.cc/maxine/mcolor/archive/Prerelease-5.zip
+)
+
 CPMAddPackage(
         NAME ReWindow
-        URL URL https://git.redacted.cc/Redacted/ReWindow/archive/Prerelease-31.zip
+        URL https://git.redacted.cc/Redacted/ReWindow/archive/Prerelease-32.zip
+)
+
+CPMAddPackage(
+        NAME JGL
+        URL https://git.redacted.cc/josh/JGL/archive/Prerelease-47.zip
 )
 
 add_executable(ReWalkerApp main.cpp)
 
-target_include_directories(ReWalkerApp PUBLIC ${ReWindow_SOURCE_DIR}/include ${J3ML_SOURCE_DIR}/include)
+target_include_directories(ReWalkerApp PUBLIC
+        ${ReWindow_SOURCE_DIR}/include
+        ${J3ML_SOURCE_DIR}/include
+        ${mcolor_SOURCE_DIR}/include
+        ${JGL_SOURCE_DIR}/include
+)
 
-target_link_libraries(ReWalkerApp PUBLIC J3ML ReWindowLibrary)
+target_link_libraries(ReWalkerApp PUBLIC J3ML ReWindow mcolor JGL)
 
 # simple window test
 add_executable(TestWindowApp test.cpp)
 
-target_include_directories(TestWindowApp PUBLIC ${ReWindow_SOURCE_DIR}/include ${J3ML_SOURCE_DIR}/include)
+target_include_directories(TestWindowApp PUBLIC
+        ${ReWindow_SOURCE_DIR}/include
+        ${J3ML_SOURCE_DIR}/include
+        ${mcolor_SOURCE_DIR}/include
+)
 
-target_link_libraries(TestWindowApp PUBLIC J3ML ReWindowLibrary)
+target_link_libraries(TestWindowApp PUBLIC J3ML ReWindow)

README.md

@@ -5,6 +5,8 @@ This is a simple random walker that has a little twist that if the user clicks t
 
 The user can user the number 1, 2, 3, 4 and 5 keys to change the force at which the walker is blown away from the mouse pointer. 1 is lowest force and 5 is highest.
 
+There are now 4 red impervious obstacles to bump into.
+
 test.cpp builds to TestWindowApp as a test to help me understand how ReWindow works.
 
 main.cpp builds to ReWalkerApp which is the main random walker program.
@@ -17,7 +19,7 @@ Install dependencies
 
 ```bash
 Rocky/Fedora/RHEL:  dnf install cmake make gcc-g++ libX11 libX11-devel mesa-libGL-devel
-Pop_OS!/Ubuntu/Debian:  apt-get install cmake make gcc g++ libx11-6 libx11-dev libgl-dev libxrandr-dev
+Pop_OS!/Ubuntu/Debian:  apt-get install cmake make gcc g++ libx11-6 libx11-dev libgl-dev libxrandr-dev libvulkan-dev
 ```
 
 Clone the repository

main.cpp

@@ -1,77 +1,107 @@
 // ReWalker
-// A random walker that moves around the screen with a fading trail and mouse interaction.
-// Now with real-time adjustable push force using number keys 1-5!
-// Written using Redacted ReWindow https://git.redacted.cc/Redacted/ReWindow
+// A random walker that moves around the screen with a fading trail, mouse interaction, and a status bar.
+// There are now obsticalse you cant walk through
+// Updated to use the latest ReWindow API and JGL rendering.
 // Written by Rich
-// With help from (and thanks to) from Maxine, Josh and Bill
+// With help from (and thanks to) from Maxine, Josh, and Bill.
 
-#include <rewindow/types/window.h>
-#include <rewindow/logger/logger.h>
-#include <GL/gl.h>
+#include <ReWindow/types/Window.h>
+#include <ReWindow/Logger.h>
+#include <JGL/JGL.h>
+#include <Color4.hpp>
 #include <memory>
 
-// Define window size and dot size (dot size should be odd for symmetry)
+
+// Define window size and dot size
 #define WIDTH 800
 #define HEIGHT 600
 #define DOT_SIZE 5
+#define OBSTACLE_SIZE 50
+
+#define STATUS_BAR_HEIGHT 30  // Height of the status bar at the bottom
 
-// Define fading speed (higher = faster fading, range: 0.001 - 0.2)
 #define FADE_SPEED 0.05f
+constexpr unsigned int TRAIL_LENGTH = 20;
 
-// Enable debug mode (set to 0 to disable debug output)
-#define DEBUG 0
+// Enable debug mode
+#define DEBUG 1
 
 /**
- * @brief Represents the walker that moves randomly on the screen.
+ * @brief Represents an obstacle that the walker cannot pass through.
+ */
+struct Obstacle {
+    Vector2 position;  // Top-left corner of the obstacle
+
+    Obstacle(float x, float y) : position(x, y) {}
+
+    /**
+     * @brief Checks if a given position is inside the obstacle.
+     */
+    bool isColliding(const Vector2& pos) const {
+        return pos.x >= position.x && pos.x <= position.x + OBSTACLE_SIZE &&
+               pos.y >= position.y && pos.y <= position.y + OBSTACLE_SIZE;
+    }
+};
+
+/**
+ * @brief Represents the walker that moves randomly.
  */
 struct Walker {
-    float x, y; // Current position of the walker
+    Vector2 position;
+    Vector2 lastValidPosition;
+
+    Walker() : position(WIDTH / 2.0f, (HEIGHT - STATUS_BAR_HEIGHT) / 2.0f), 
+               lastValidPosition(position) {}
 
     /**
-     * @brief Constructor initializes the walker at the center of the screen.
+     * @brief Moves the walker in a random direction.
      */
-    Walker() : x(WIDTH / 2.0f), y(HEIGHT / 2.0f) {}
-
-    /**
-     * @brief Moves the walker one step in a random direction.
-     */
-    void step() {
+    void step(const std::vector<Obstacle>& obstacles) {
         float angle = static_cast<float>(rand()) / RAND_MAX * 360.0f;
-        angle = angle * M_PI / 180.0f; // Convert degrees to radians
+        angle = Math::Radians(angle);
         float dx = std::cos(angle);
         float dy = std::sin(angle);
 
-        // Update position and clamp within screen boundaries
-        x = std::clamp(x + dx, 0.0f, static_cast<float>(WIDTH - 1));
-        y = std::clamp(y + dy, 0.0f, static_cast<float>(HEIGHT - 1));
+        // Store last valid position
+        lastValidPosition = position;
 
-        #if DEBUG
-        std::cout << "Walker Position: (" << x << ", " << y << ")\n";
-        #endif
+        // Update position
+        position.x = std::clamp(position.x + dx, 0.0f, static_cast<float>(WIDTH - 1));
+        position.y = std::clamp(position.y + dy, 0.0f, static_cast<float>(HEIGHT - STATUS_BAR_HEIGHT - 1));
+
+        // Check for collisions
+        for (const auto& obstacle : obstacles) {
+            if (obstacle.isColliding(position)) {
+                position = lastValidPosition;  // Revert movement if collision occurs
+                break;
+            }
+        }
     }
 
     /**
-     * @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.
+     * @brief Pushes the walker away from the mouse pointer.
      */
-    void pushAway(float mouseX, float mouseY, float force) {
-        float adjustedMouseY = HEIGHT - mouseY; // Adjust for coordinate system
-
-        float deltaX = x - mouseX;
-        float deltaY = y - adjustedMouseY;
+    void pushAway(float mouseX, float mouseY, float force, const std::vector<Obstacle>& obstacles) {
+        float deltaX = position.x - mouseX;
+        float deltaY = position.y - mouseY;
 
         float distance = std::sqrt(deltaX * deltaX + deltaY * deltaY);
-
-        // Only push if the mouse is close enough
         if (distance > 0.0f) {
             float unitX = deltaX / distance;
             float unitY = deltaY / distance;
 
-            // 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));
+            lastValidPosition = position;
+
+            position.x = std::clamp(position.x + unitX * force, 0.0f, static_cast<float>(WIDTH - 1));
+            position.y = std::clamp(position.y + unitY * force, 0.0f, static_cast<float>(HEIGHT - STATUS_BAR_HEIGHT - 1));
+
+            // Prevent moving into obstacles
+            for (const auto& obstacle : obstacles) {
+                if (obstacle.isColliding(position)) {
+                    position = lastValidPosition;
+                    break;
+                }
+            }
         }
     }
 
@@ -79,96 +109,78 @@ struct Walker {
      * @brief Resets the walker to the center of the screen.
      */
     void resetPosition() {
-        x = WIDTH / 2.0f;
-        y = HEIGHT / 2.0f;
+        position = Vector2(WIDTH / 2.0f, (HEIGHT - STATUS_BAR_HEIGHT) / 2.0f);
     }
 };
 
 /**
- * @brief Custom ReWindow window class that manages the random walker simulation.
+ * @brief Custom ReWindow window class that manages the walker simulation.
  */
-class RandomWalkerWindow : public ReWindow::RWindow {
+class RandomWalkerWindow : public ReWindow::OpenGLWindow {
 public:
-    /**
-     * @brief Constructor initializes the window, walker, and trail buffer.
-     * @param title Window title
-     * @param width Window width
-     * @param height Window height
-     */
     RandomWalkerWindow(const std::string& title, int width, int height)
-        : ReWindow::RWindow(title, width, height),
+        : ReWindow::OpenGLWindow(title, width, height, 2, 1),
           walker(std::make_unique<Walker>()),
-          trailBuffer(WIDTH * HEIGHT, 1.0f), // Initialize trail buffer to white (1.0)
-          pushForce(3.0f) // Default push force
-    {}
-
-    /**
-     * @brief Called once when the window is opened.
-     * Configures OpenGL to use a 2D orthographic projection.
-     */
-    void OnOpen() override {
-        glMatrixMode(GL_PROJECTION);
-        glLoadIdentity();
-        glOrtho(0, WIDTH, HEIGHT, 0, -1, 1); // Map OpenGL coordinates to screen pixels
-        glMatrixMode(GL_MODELVIEW);
+          pushForce(3.0f) 
+    {
+        // Define four obstacles
+        obstacles.emplace_back(200, 150);
+        obstacles.emplace_back(500, 150);
+        obstacles.emplace_back(200, 400);
+        obstacles.emplace_back(500, 400);
     }
 
-    /**
-     * @brief Called every frame to update and render the walker with a fading trail.
-     */
-    void OnRefresh(float elapsed) override {
-        // Clear the OpenGL buffer (not the trail buffer)
-        glClear(GL_COLOR_BUFFER_BIT);
+    void OnOpen() override {
+        if (!JGL::Init({WIDTH, HEIGHT}, 0, 0))
+            exit(0);
 
-        // Handle user inputs
+        this->render_target = new RenderTarget({WIDTH, HEIGHT}, Colors::White);
+    }
+
+    void OnRefresh(float elapsed) override {
         handleMouseInput();
         handleKeyboardInput();
 
-        // Update trail (fade effect)
-        fadeTrail();
+        // Move walker
+        walker->step(obstacles);
 
-        // Move the walker
-        walker->step();
+        JGL::Update({WIDTH, HEIGHT});
+        J2D::Begin(render_target, true);
+            fadeTrail();
+            drawTrail();
+            drawObstacles();
+            plotWalker();
+        J2D::End();
 
-        // Update the trail buffer with the walkers current position
-        plotWalker();
+        J2D::Begin(nullptr, true);
+            J2D::DrawRenderTarget(render_target, {0, 0});
+        J2D::End();
 
-        // Render the updated trail
-        drawTrail();
-
-        // Swap buffers to display the frame
-        GLSwapBuffers();
+        SwapBuffers();
     }
 
 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
+    std::vector<Obstacle> obstacles;
+    std::vector<std::pair<Vector2, float>> trailBuffer{};
+    RenderTarget* render_target = nullptr;
+
+    float pushForce;
 
-    /**
-     * @brief Handles mouse input to push the walker away.
-     */
     void handleMouseInput() {
         auto mousePos = GetMouseCoordinates();
-
         if (IsMouseButtonDown(MouseButtons::Left)) {
-            walker->pushAway(mousePos.x, mousePos.y, pushForce);
+            walker->pushAway(mousePos.x, mousePos.y, pushForce, obstacles);
         }
     }
 
-    /**
-     * @brief Handles keyboard input to reset the walker and adjust push force.
-     */
     void handleKeyboardInput() {
         if (IsKeyDown(Keys::Space)) {
             walker->resetPosition();
         }
-
         if (IsKeyDown(Keys::Escape)) {
             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;
@@ -176,48 +188,37 @@ private:
         if (IsKeyDown(Keys::Five)) pushForce = 5.0f;
     }
 
-    /**
-     * @brief Applies the fade effect to the trail buffer.
-     */
     void fadeTrail() {
-        for (auto& pixel : trailBuffer) {
-            pixel = std::min(pixel + FADE_SPEED, 1.0f); // Ensure value does not exceed 1.0 (white)
-        }
-    }
-
-    /**
-     * @brief Plots the walkers current position as a black dot in the trail buffer.
-     */
-    void plotWalker() {
-        int centerX = static_cast<int>(walker->x);
-        int centerY = static_cast<int>(walker->y);
-        int halfSize = DOT_SIZE / 2;
-
-        for (int dy = -halfSize; dy <= halfSize; ++dy) {
-            for (int dx = -halfSize; dx <= halfSize; ++dx) {
-                int px = centerX + dx;
-                int py = centerY + dy;
-
-                if (px >= 0 && px < WIDTH && py >= 0 && py < HEIGHT) {
-                    trailBuffer[py * WIDTH + px] = 0.0f;
-                }
-            }
-        }
+        for (auto& trailPoint : trailBuffer)
+            trailPoint.second = std::max(trailPoint.second - FADE_SPEED, 0.0f);
+        trailBuffer.emplace_back(walker->position, 1.0f);
+        if (trailBuffer.size() > TRAIL_LENGTH)
+            trailBuffer.erase(trailBuffer.begin());
     }
 
     void drawTrail() {
-        std::vector<uint8_t> grayscale(WIDTH * HEIGHT);
-        for (size_t i = 0; i < trailBuffer.size(); ++i) {
-            grayscale[i] = static_cast<uint8_t>(trailBuffer[i] * 255.0f);
+        for (const auto& trailPoint : trailBuffer)
+            J2D::DrawPoint({0, 0, 0, (uint8_t)(trailPoint.second * 255.0f)}, trailPoint.first, DOT_SIZE);
+    }
+
+    void plotWalker() {
+        J2D::DrawPoint(Colors::Black, walker->position, DOT_SIZE);
+    }
+
+    /**
+     * @brief Draws the four red obstacles.
+     */
+    void drawObstacles() {
+        for (const auto& obstacle : obstacles) {
+            J2D::FillRect(Colors::Red, obstacle.position, {OBSTACLE_SIZE, OBSTACLE_SIZE});
         }
-        glDrawPixels(WIDTH, HEIGHT, GL_LUMINANCE, GL_UNSIGNED_BYTE, grayscale.data());
     }
 };
 
 int main() {
-    auto window = std::make_unique<RandomWalkerWindow>("Random Walker with ReWindow", WIDTH, HEIGHT);
-    window->SetRenderer(RenderingAPI::OPENGL);
-    window->Open();
+    auto window = std::make_unique<RandomWalkerWindow>("Random Walker with Obstacles", WIDTH, HEIGHT);
+    if (!window->Open())
+        return -1;
 
     while (!window->IsClosing()) {
         window->ManagedRefresh();

test.cpp

@@ -1,32 +1,30 @@
 // simple test program to open a window with
 // a blue background.
 
-#include <rewindow/types/window.h>
-#include <rewindow/logger/logger.h>
+#include <ReWindow/types/Window.h>
+#include <ReWindow/Logger.h>
 #include <GL/gl.h>
 
 #define WIDTH 800
 #define HEIGHT 600
 
 
-class RandomWalkerWindow : public ReWindow::RWindow {
+class RandomWalkerWindow : public ReWindow::OpenGLWindow {
 public:
     RandomWalkerWindow(const std::string& title, int width, int height)
-        : ReWindow::RWindow(title, width, height) {}
+        : ReWindow::OpenGLWindow(title, width, height, 2, 1) {}
 
     void OnRefresh(float elapsed) override {
-        glClearColor(0.0f, 0.0f, 1.0f, 1.0f); // Clear with blue
-        glClear(GL_COLOR_BUFFER_BIT);
-        GLSwapBuffers();
+        //glClearColor(0.0f, 0.0f, 1.0f, 1.0f); // Clear with blue
+        //glClear(GL_COLOR_BUFFER_BIT);
+        SwapBuffers();
     }
 };
 
 int main() {
 
     std::unique_ptr<RandomWalkerWindow> window =
-        std::make_unique<RandomWalkerWindow>("Random Walker with ReWindow", WIDTH, HEIGHT);
-
-    window->SetRenderer(RenderingAPI::OPENGL);
+            std::make_unique<RandomWalkerWindow>("Random Walker with ReWindow", WIDTH, HEIGHT);
     window->Open();
 
     while (!window->IsClosing()) {