initial commit

my_package/Particle_class.py

@@ -0,0 +1,23 @@
+class Particle:
+    def __init__(self,x,y,color,fade_speed):
+        self.pos = (x,y)
+        self.velocity = (0,0)
+        self.accel = (0,0)
+        self.surface = None
+        self.color = color
+        self.fade_speed = fade_speed
+        self.alpha = 255
+
+    def set_surface(self,surface):
+        self.surface = surface
+
+    def update(self):
+        self.velocity = (self.velocity[0]+self.accel[0], self.velocity[1]+self.accel[1])
+        self.pos = (self.pos[0] + self.velocity[0], self.pos[1] + self.velocity[1])
+        self.accel = (0,0)
+
+    def apply_force(self,force):
+        self.accel = (self.accel[0]+force[0],self.accel[1]+force[1])
+
+    def fade(self):
+        self.alpha -= self.fade_speed