class ProjectileApp:
def __init__(self):
# Create graphics window with a scale line at the bottom
self.win = GraphWin("Projectile Animation", 640, 480)
self.win.setCoords(-10, -10, 210, 155)
Line(Point(-10, 0), Point(210, 0)).draw(self.win)
for x in range(0, 210, 50):
Text(Point(x, -7), str(x)).draw(self.win)
Line(Point(x, 0), Point(x, 2)).draw(self.win)
# Add the launcher to the window
self.launcher = Launcher(self.win)
# Starts with an empty list of live shots
self.shots = []
def run(self):
# Main event/animation loop
while True:
self.updateShots(1/30)
key = self.win.checkKey()
if key in ["q", "Q"]:
break
if key == "Up":
self.launcher.adjAngle(5)
elif key == "Down":
self.launcher.adjAngle(-5)
elif key == "Right":
self.launcher.adjVel(5)
elif key == "Left":
self.launcher.adjVel(-5)
elif key in ["f", "F"]:
self.shots.append(launcher.fire())
update(30)
win.close()
def updateShots(self, dt):
alive = []
for shot in self.shots:
shot.update(dt)
if shot.getY() >= 0 and -10 < shot.getX() < 210:
alive.append(shot)
else:
shot.undraw()
self.shots = alive
