feat: lock mouse as soon as game starts (#15)

Co-authored-by: AhmedAmrNabil <ahmedamr24680@gmail.com>

Author: AhmedSobhy01

src/common/input/mouse.hpp

@@ -99,6 +99,9 @@ namespace our {
         // Locks the mouse position and hides it (Usually used for FPS games)
         static void lockMouse(GLFWwindow* window) {
             glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
+            glfwSetCursor(
+                window,
+                nullptr);  // This is needed to prevent a GLFW bug where the cursor is visible again after locking it.
         }
         // If the mouse was locked, unlock it (make it visible and allow it to move)
         static void unlockMouse(GLFWwindow* window) {

src/common/systems/free-camera-controller.hpp

@@ -23,6 +23,9 @@ namespace our {
         // When a state enters, it should call this function and give it the pointer to the application
         void enter(Application* app) {
             this->app = app;
+            app->getMouse().lockMouse(app->getWindow());
+            app->getMouse().enable(app->getWindow());
+            mouse_locked = true;
         }
 
         // This should be called every frame to update all entities containing a FreeCameraControllerComponent
@@ -42,23 +45,12 @@ namespace our {
             // Get the entity that we found via getOwner of camera (we could use controller->getOwner())
             Entity* entity = camera->getOwner();
 
-            // If the left mouse button is pressed, we lock and hide the mouse. This common in First Person Games.
-            if (app->getMouse().isPressed(GLFW_MOUSE_BUTTON_1) && !mouse_locked) {
-                app->getMouse().lockMouse(app->getWindow());
-                mouse_locked = true;
-                // If the left mouse button is released, we unlock and unhide the mouse.
-            } else if (!app->getMouse().isPressed(GLFW_MOUSE_BUTTON_1) && mouse_locked) {
-                app->getMouse().unlockMouse(app->getWindow());
-                mouse_locked = false;
-            }
-
             // We get a reference to the entity's position and rotation
             glm::vec3& position = entity->localTransform.position;
             glm::vec3& rotation = entity->localTransform.rotation;
 
-            // If the left mouse button is pressed, we get the change in the mouse location
-            // and use it to update the camera rotation
-            if (app->getMouse().isPressed(GLFW_MOUSE_BUTTON_1)) {
+            // While the play state is active, the mouse stays locked
+            if (mouse_locked) {
                 glm::vec2 delta = app->getMouse().getMouseDelta();
                 rotation.x -= delta.y * controller->rotationSensitivity;  // The y-axis controls the pitch
                 rotation.y -= delta.x * controller->rotationSensitivity;  // The x-axis controls the yaw
@@ -105,6 +97,7 @@ namespace our {
             if (mouse_locked) {
                 mouse_locked = false;
                 app->getMouse().unlockMouse(app->getWindow());
+                app->getMouse().enable(app->getWindow());
             }
         }
     };