#Dan McGovern and Brian Cohen #Special Thanks to Sajjan Mehta and Andrew Eshelman #Recitation 1 from pylab import * from visual import * from random import * print " " print "Good afternoon, Cadette," print" You are aboard the most advanced intergalactic fighter star ship, the" print "SS Ess Ess. The Ess Ess is equipped with state of the art technology." print "It's capabilities include" print " " print "an Electro-Magnetic Force Field (S-button)" print "a Laser Cannon (Space Bar)" print "a Teleportation Device (T-button)" print "a Liquid Hydrogen Thruster (Up)" print "Deceleration Rocket Packs (Down)" print "and Rotational Thrusters (Left/Right)" print " " print "Your mission, if you choose to accept it, is to navigate the Goldberg" print "belt--the most dangerous asteroid field in our galaxy (named" print 'for the famous astrophysicist "Dangerous Goldberg").' print " " print "Godspeed, Cadette. Show those commie asteroids what-for." ''' Hey Travis, this game is going to blow your mind. Here are the controls Left/Right:Rotate ship clockwise/counterclockwise Up: Accelerate Down: Decelerate T: Teleport to random position on screen S: Employ Shield Space: Shoot We conserved momentum and mass in the destruction of asteroids and employed non-relativistic kinematic equations to update the positions of objects. ''' theta=(pi/2) #initial angle of ship dtheta=(pi/24) #amount ship turns per key stroke scene.autoscale=False scene.range=100 #size of window ship = pyramid(pos=(0,0,0), size=(12,6,0), m=50) #your sweet ride--an interstellar asteroid destroyer ship.rotate(angle=theta, axis=(0,0,1)) asteroid=[] arad= 8 #default asteroid radius aspeedmax= 30 # default asteroid speed tele=5 #inital amount of teleports shot=sphere(pos=(200,200,0), radius=1, color=color.yellow,p=vector(0,0,0)) #the bullet you fire to destroy asteroids shield = ring(pos=(200,200,0), axis=(0,0,1), radius=10, thickness=1, color=color.blue) #the shield you can use as defence against bloodthirsty asteroids shot.m=0 #your bullets are massless score=0 #initial score alive=3 #inital number of lives protect=0 #a number used to regualte shield usage charge=3 #how many volts require to employ shield lastextralifescore=0 #number used to regulate winning more lives score_label = label(pos = (75, 90, 0), color = color.white, height = 11, linecolor = color.black, text = 'Score: '+ str(score)) #score indicator tele_label = label(pos = (78, 80, 0), color = color.white, height = 11, linecolor = color.black, text = 'Teleports: '+ str(tele))#teleport indicator alive_label = label(pos = (73, 70, 0), color = color.white, height = 11, linecolor = color.black, text = 'Lives: '+ str(alive))#life indicator shield_label = label(pos = (73, 60, 0), color = color.white, height = 11, linecolor = color.black, text = 'Shield: Charged')#shield indicator #2 is smallest radius for asteriod pieces. ship.p=vector(0,0,0) #start at rest t=0 #inital time dt = 0.01 #time step def newasteroid(): #subroutine used to put asteroids into the system global arad, scene xory=random() #how we determine which side of the scene the asteroid will enter aspeed=aspeedmax*random() #randomized speed of new asteroid aangle=2*pi*random() #randomized direction of new asteroid if xory<.5: #starts half the asteroids on the left edge of the scene asteroid.append(sphere( pos=(-100+arad,2*100*random()-100,0), radius=arad, m=30, color=(.4+.2*random(),.4+.2*random(),.4+.2*random()), p=vector(aspeed*cos(aangle),aspeed*sin(aangle),0))) else: #starts half the asteroids from the bottom edge of the scene asteroid.append(sphere(m=30, pos=(2*100*random()-100,-100+arad,0), radius=arad, color=(.4+.2*random(),.4+.2*random(),.4+.2*random()),p=vector(aspeed*cos(aangle),aspeed*sin(aangle),0))) def breakasteroid(i): #subroutine used to break apart asteroids global scene, score #asteroid[i].visible=0 #asteroid = asteroid[0:i] + asteroid[i+1:len(asteroid)] shot.pos=(200,200,0) #shot is "destroyed" in collision--stowed away off screen shot.p=vector(0,0,0) #shot is set at rest ast0=asteroid[i] #reassigns colliding asteroid rang = 2*pi*random() #randomized angle that asteroid pieces fly off rmag = 10*random() score +=100 #score 100 points for destroying an asteroid score_label.text = 'Score: '+ str(score) ast1 = sphere( pos=ast0.pos, radius=ast0.radius/sqrt(2), m=ast0.m/2, color=ast0.color, p=vector(rmag*cos(rang)+ast0.p.x,rmag*sin(rang)+ast0.p.y,0)) ast2 = sphere( pos=ast0.pos, radius=ast0.radius/sqrt(2), m=ast0.m/2, color=ast0.color, p=vector(-rmag*cos(rang)+ast0.p.x,-rmag*sin(rang)+ast0.p.y,0)) ast0.visible=0 del ast0 if ast1.radius>3: asteroid[i]=ast1 else: #asteroid[i].visible=0 del asteroid[i] ast1.visible=0 del ast1 if ast2.radius>3: asteroid.append(ast2) else: ast2.visible=0 del ast2 def explosion(r): t = 0 dt = 0.01 explode = sphere(pos=(r), radius=0, color=color.red) while t<0.5: rate(1/dt) t +=dt while t<1.2: rate(1/dt) t += dt explode.radius += 0.7 while t>1.2: rate(1/dt) t += dt explode.radius -= 0.7 if t>1.86: explode.visible=0 break def checkUserInput(): #subroutibe that inputs data with keystrokes global scene, theta, dtheta, paddle, pause, key2, tele, ship, protect, charge if scene.kb.keys: key = scene.kb.getkey() if key == 'up' or key=='ctrl+up': ship.p+=vector(13*cos(theta),13*sin(theta),0) if key == 'down' or key=='ctrl+down': #ship.p+=vector(-7.5*cos(theta),-7.5*sin(theta),0) ship.p=.92*ship.p if key == 'left' or key=='ctrl+left': theta += dtheta ship.rotate(angle = dtheta, axis=vector(0, 0, 1)) if key == 'right' or key=='ctrl+right': theta -= dtheta ship.rotate(angle = -dtheta, axis=vector(0, 0, 1)) if key == 's' and charge>2: protect +=0.6 charge =0 shield.pos=(ship.pos.x+3*cos(theta),ship.pos.y+6*sin(theta), ship.pos.z) shield_label.text = 'Shield: Charging' if key == ' ': shot.pos=ship.pos shot.m=5 shot.p=vector(50*cos(theta),50*sin(theta),0) if key == 't' and tele>0: tele-=1 ship.pos.x=2*100*random()-100 ship.pos.y=2*100*random()-100 tele_label.text = 'Teleports: '+ str(tele) while alive>0: #main loop in which posisitions are updated and collisions are checked for. if t<0.01: newasteroid() t+=dt checkUserInput() #rate=1/dt ship.pos+=dt*ship.p/ship.m if charge >2: shield_label.text = 'Shield: Charged' if protect>0.3 and charge <2: shield.pos =(ship.pos.x+3*cos(theta),ship.pos.y+6*sin(theta), ship.pos.z) for i in xrange(len(asteroid)): if abs(asteroid[i].pos-(ship.pos.x+3*cos(theta),ship.pos.y+6*sin(theta), ship.pos.z))<(asteroid[i].radius+shield.radius): asteroid[i].visible=0 asteroid = asteroid[0:i] + asteroid[i+1:len(asteroid)] protect=0 break else: shield.pos=(200,200,0) if protect<0.3 and shield.pos.x<150: shield.pos=(200,200,0) if shot.m>0: shot.pos+=dt*shot.p/shot.m for i in xrange(len(asteroid)): asteroid[i].pos+=dt*asteroid[i].p/asteroid[i].m if abs(asteroid[i].x)>100: asteroid[i].pos.x=-asteroid[i].pos.x if abs(asteroid[i].y)>100: asteroid[i].pos.y=-asteroid[i].pos.y if abs(asteroid[i].pos-shot.pos)100: ship.pos.x=-ship.pos.x if abs(ship.pos.y)>100: ship.pos.y=-ship.pos.y if abs(shot.pos.x)>100: shot.pos.x=-shot.pos.x if abs(shot.pos.y)>100: shot.pos.y=-shot.pos.y if score%1000==0 and score >0 and score!=lastextralifescore: alive+= 1 lastextralifescore=score alive_label.text = 'Lives: '+ str(alive) tele+= 1 tele_label.text = 'Teleports: '+ str(tele) if t>160: if protect>0.3: protect -=0.2 if charge<3: charge +=1 t=0 dead_label = label(pos = (-5, 0, 0), color = color.white, height = 11, linecolor = color.red, text = 'You dead.')