ADD: Slider widget in widget module

widgets/slider.py

@@ -0,0 +1,75 @@
+import pygame
+
+class HorizontalSlider:
+    def __init__(self, screen, x, y, width, height, min_value, max_value):
+        self.screen = screen
+        self.x = x
+        self.y = y
+        self.width = width
+        self.height = height
+        self.min_value = min_value
+        self.max_value = max_value
+        self.value = min_value
+
+        self.background_colour = (255, 255, 255)
+        self.knob_colour = (255, 0, 0)
+
+        self.knob_radius = 10
+        self.knob_x = self.x
+        self.dragging = False
+
+    def handle_event(self, event):
+        """Handle mouse events for dragging"""
+        if event.type == pygame.MOUSEBUTTONDOWN:
+            if event.pos[0] >= self.x and event.pos[0] <= self.x + self.width and event.pos[1] >= self.y and event.pos[1] <= self.y + self.height:
+                self.knob_x = event.pos[0]
+                self.dragging = True
+        elif event.type == pygame.MOUSEBUTTONUP:
+            self.dragging = False
+        elif event.type == pygame.MOUSEMOTION and self.dragging:
+            if event.pos[0] >= self.x and event.pos[0] <= self.x + self.width:
+                self.knob_x = event.pos[0]
+                self.value = self.min_value + ((self.max_value - self.min_value) * ((self.knob_x - self.x) / self.width))
+
+    def draw(self):
+        pygame.draw.rect(self.screen, self.background_colour, (self.x, self.y, self.width, self.height))
+        pygame.draw.circle(self.screen, self.knob_colour, (int(self.knob_x), self.y + self.height // 2), self.knob_radius)
+
+    def set_value(self, value):
+        self.value = int(value)
+        if value < self.min_value:
+            self.value = self.min_value
+        elif value > self.max_value:
+            self.value = self.max_value
+        else:
+            self.value = value
+
+        self.knob_x = self.x + (self.width * ((self.value - self.min_value) / (self.max_value - self.min_value)))
+
+    def set_radius(self, radius):
+        self.knob_radius = radius
+
+    def set_background_colour(self, colour):
+        self.background_colour = colour
+
+    def set_knob_colour(self, colour):
+        self.knob_colour = colour
+
+if __name__ == "__main__":
+    pygame.init()
+    screen = pygame.display.set_mode((800, 600))
+    slider = HorizontalSlider(screen, 50, 50, 700, 20, 0, 1000)
+    running = True
+
+    while running:
+        screen.fill((0, 0, 0))
+        slider.draw()
+        pygame.display.flip()
+
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                running = False
+            slider.handle_event(event)
+
+    
+