added three sliders to change bg color

dependencies/testproject_featuredemo.cpp

@@ -48,11 +48,13 @@ void textChanged() {
     std::cout << "The input text is now: " << input.getText() << std::endl;
 }
 
- TDT4102::Slider s{{200, 300}, 200, 100, 0, 100, 0};
+ TDT4102::Slider rv{{200, 300}, 300, 80};
+ TDT4102::Slider gv{{200, 420}, 300, 80, 0, 255, 7};
+ TDT4102::Slider bv{{200, 540}, 300, 80, 0, 255, 240};
 
-void sliderValue() {
-    std::cout << "Value is: " << s.getValue() << std::endl;  
-}
+// void sliderValue() {
+//     std::cout << "Value is: " << s.getValue() << std::endl;  
+// }
 
 int main(int argc, char* argv[]) {
     TDT4102::AnimationWindow window(100, 100, 1000, 800, "Test");
@@ -75,12 +77,18 @@ int main(int argc, char* argv[]) {
     input.setCallback(&textChanged);
     window.add(input);
 
-    s.setSliderCursorColor(TDT4102::Color::lime_green);
-    s.setSliderCursorColorHover(TDT4102::Color::lime_green);
-    s.setSliderBarColorFilled(TDT4102::Color::pink);
+    rv.setCallback([&window] {window.setBackgroundColor(TDT4102::Color(rv.getValue(), gv.getValue(), bv.getValue()));});
+    gv.setCallback([&window] {window.setBackgroundColor(TDT4102::Color(rv.getValue(), gv.getValue(), bv.getValue()));});
+    bv.setCallback([&window] {window.setBackgroundColor(TDT4102::Color(rv.getValue(), gv.getValue(), bv.getValue()));});
+
+    // s.setSliderCursorColor(TDT4102::Color::lime_green);
+    // s.setSliderCursorColorHover(TDT4102::Color::lime_green);
+    // s.setSliderBarColorFilled(TDT4102::Color::pink);
 
-    s.setCallback(&sliderValue);
-    window.add(s);
+    // s.setCallback(&sliderValue);
+    window.add(rv);
+    window.add(bv);
+    window.add(gv);
 
     int x = 10;
     int y = 10;
@@ -94,8 +102,8 @@ int main(int argc, char* argv[]) {
     std::vector<Ball> circles;
     circles.resize(5000);
     for (unsigned int i = 0; i < circles.size(); i++) {
-        circles.at(i).x = randint(0, window.get_width());
-        circles.at(i).y = randint(0, window.get_height());
+        circles.at(i).x = randint(0, window.width());
+        circles.at(i).y = randint(0, window.height());
         circles.at(i).radius = randint(5, 10);
         circles.at(i).xSpeed = float(randint(-400, 400)) / 100.0f;
         circles.at(i).ySpeed = float(randint(-400, 400)) / 100.0f;
@@ -124,8 +132,8 @@ int main(int argc, char* argv[]) {
         // window.draw_image(mousePosition, image);
         bool allAtCenter = true;
         for (Ball& ball : circles) {
-            float gravityX = (float(window.get_width()) / 2.0f) - ball.x;
-            float gravityY = (float(window.get_height()) / 2.0f) - ball.y;
+            float gravityX = (float(window.width()) / 2.0f) - ball.x;
+            float gravityY = (float(window.height()) / 2.0f) - ball.y;
             float absoluteSpeed = std::max(std::sqrt(gravityX * gravityX + gravityY * gravityY), 3.0f);
             const float gravity = 0.07f;
             ball.xSpeed += (gravityX / absoluteSpeed) * gravity;
@@ -144,7 +152,7 @@ int main(int argc, char* argv[]) {
             } else if(ball.y + ball.radius < 0) {
                 ball.y = window.h() + ball.radius;
             }*/
-            if ((std::abs(ball.x - float(window.get_width()) / 2.0f) > 1.0f) && (std::abs(ball.y - float(window.get_height()) / 2.0f) > 1.0f)) {
+            if ((std::abs(ball.x - float(window.width()) / 2.0f) > 1.0f) && (std::abs(ball.y - float(window.height()) / 2.0f) > 1.0f)) {
                 allAtCenter = false;
             }
             // window.draw_circle({int(ball.x), int(ball.y)}, ball.radius, ball.colour, TDT4102::Color::black);