diff options
Diffstat (limited to 'physics.py')
| -rw-r--r-- | physics.py | 311 |
1 files changed, 176 insertions, 135 deletions
@@ -1,152 +1,193 @@ -# Physics.activity -# Go eat an apple, Newton! -# Alex's Branch! -# Brian Jordan -# Modified from Alex Levenson's testbed -# Modified from Elements demos +#================================================================== +# Physics.activity +# An attempt at a Phun / Crayon Physics style physics game +# By Alex Levenson and Brian Jordan +#================================================================== +import sys +import math import pygame from pygame.locals import * from pygame.color import * - +from sugar.activity import activity import elements from elements import Elements +from tools import * -def main(): - # set up pygame - pygame.init() - size = (1200,900) # A - Any way of getting a lower resolution? Changing size? - #size = (1024, 768) - screen = pygame.display.set_mode(size) - clock = pygame.time.Clock() - - # set up the world - world = elements.Elements((400,400)) # A - here? - world.renderer.set_surface(screen) - - # set up enviornment - world.add.ground() - #world.add.wall((100, 100), (300, 300), 5) - #body=world.add.rect((900,300),width=300,height=25) - #world.add.joint(body) +# =======================================Classes================================== +# tools that can be used superlcass +class Tool(object): + def __init__(self): + # default tool name + self.name = "Tool" + def handleEvents(self,event): + # default event handling + global currentTool + if event.type == QUIT or (event.type == KEYDOWN and event.key == K_ESCAPE): + # bye bye! Hope you had fun! + sys.exit() + elif event.type == KEYDOWN: + if event.key == K_SPACE: + #space pauses + world.run_physics = not world.run_physics + elif event.key == K_c: + currentTool.cancel() + currentTool = tools["circle"] + elif event.key == K_b: + currentTool.cancel() + currentTool = tools["box"] + elif event.key == K_t: + currentTool.cancel() + currentTool = tools["triangle"] + elif event.key == K_j: + currentTool.cancel() + currentTool = tools["joint"] + elif event.key == K_g: + currentTool.cancel() + currentTool = tools["grab"] + else: + # let the subclasses know that no events were handled yet + return False + return True + def draw(self): + # default drawing method is don't draw anything + pass + def cancel(self): + # default cancel doesn't do anything + pass - # loop control - go = True +# The circle creation tool +class CircleTool(Tool): + def __init__(self): + self.name = "Circle" + self.pt1 = None + self.radius = None + def handleEvents(self,event): + #look for default events, and if none are handled then try the custom events + if not super(CircleTool,self).handleEvents(event): + if event.type == MOUSEBUTTONDOWN: + if event.button == 1: + self.pt1 = pygame.mouse.get_pos() + elif event.type == MOUSEBUTTONUP: + if event.button == 1: + if self.radius > 1: # elements doesn't like tiny shapes :( + world.add.ball(self.pt1,self.radius, dynamic=True, density=1.0, restitution=0.16, friction=0.5) + self.pt1 = None + self.radius = None + def draw(self): + # draw a circle from pt1 to mouse + if self.pt1 != None: + self.radius = distance(self.pt1,pygame.mouse.get_pos()) + if self.radius > 3: + thick = 3 + else: + thick = 0 + pygame.draw.circle(screen, (100,180,255),self.pt1,self.radius,thick) + pygame.draw.line(screen,(100,180,255),self.pt1,pygame.mouse.get_pos(),3) + def cancel(self): + self.pt1 = None + self.radius = None +""" +# The box creation tool +class BoxTool(Tool): + def __init__(self): + self.name = "Box" + self.pt1 = None + def handleEvents(self,event): + #look for default events, and if none are handled then try the custom events + if not super(BoxTool,self).handleEvents(event): + if event.type == MOUSEBUTTONDOWN: + if event.button == 1: + self.pt1 = pygame.mouse.get_pos() + elif event.type == MOUSEBUTTONUP: + if event.button == 1 and self.pt1!=None: + world.add.ball(self.pt1,self.radius, dynamic=True, density=1.0, restitution=0.16, friction=0.5) + self.pt1 = None + self.radius = None + def draw(self): + # draw a box from pt1 to mouse + if self.pt1 != None: + pygame.draw.box(screen, (100,180,255),self.pt1,,thick) + def cancel(self): + self.pt1 = None + self.radius = None +""" +# The triangle creation tool +class TriangleTool(Tool): + def __init__(self): + self.name = "Triangle" + self.pt1 = None + self.vertices = None + def handleEvents(self,event): + #look for default events, and if none are handled then try the custom events + if not super(TriangleTool,self).handleEvents(event): + if event.type == MOUSEBUTTONDOWN: + if event.button == 1: + self.pt1 = pygame.mouse.get_pos() + elif event.type == MOUSEBUTTONUP: + if event.button == 1 and self.pt1!= None: + if distance(self.pt1,pygame.mouse.get_pos()) > 10: # elements doesn't like tiny shapes :( + world.add.convexPoly(self.vertices, dynamic=True, density=1.0, restitution=0.16, friction=0.5) + self.pt1 = None + self.vertices = None + def draw(self): + # draw a triangle from pt1 to mouse + if self.pt1 != None: + self.vertices = constructTriangleFromLine(self.pt1,pygame.mouse.get_pos()) + pygame.draw.polygon(screen, (100,180,255),self.vertices, 3) + pygame.draw.line(screen,(100,180,255),self.pt1,pygame.mouse.get_pos(),3) - a = 0 - jb1=jb2=jb1pos=jb2pos=None - - # Main Loop: - processes key and mouse events, world update and draw - while go: - for event in pygame.event.get(): - if event.type == QUIT or (event.type == KEYDOWN and event.key == K_ESCAPE): - # Quit the application -- bye bye! - go = False - - elif event.type == KEYDOWN and event.key == K_SPACE: - # Pause with SPACE - world.run_physics = not world.run_physics - - # Adds Mouse-->Object joints for grabbing/throwing objects - elif event.type == MOUSEBUTTONDOWN and event.button == 1: - # Add Mouse-->Object Joint if at an Object - bodylist = world.get_bodies_at_pos(event.pos, include_static=False) - if bodylist and len(bodylist) > 0: - world.add.mouseJoint(bodylist[0], event.pos) - elif event.type == MOUSEBUTTONUP and event.button == 1: - # Delete Mouse-->Object Joint - world.add.remove_mouseJoint() - - # Uses Box2D mouse movement - elif event.type == MOUSEMOTION and event.buttons[0]: - world.mouse_move(event.pos) - - # Adds Object-->Object joints for connecting objects - elif event.type == MOUSEBUTTONDOWN and event.button == 3: - # Connect bodies - jb1pos = event.pos - jb1 = world.get_bodies_at_pos(event.pos) - jb2 = None - jb2pos = None - elif event.type == MOUSEBUTTONUP and event.button == 3: - jb2 = world.get_bodies_at_pos(event.pos) - jb2pos = event.pos - if jb1 and jb2 and str(jb1) != str(jb2): - world.add.joint(jb1[0],jb2[0],jb1pos,jb2pos) - jb1 = jb2 = jb1pos = jb2pos = None + def cancel(self): + self.pt1 = None + self.vertices = None - elif event.type == KEYDOWN: - if event.key == K_1: - #add a triangle - x,y = pygame.mouse.get_pos() - world.add.triangle((0,0),sidelength=40) - world.add.ball((x,y), radius=20) - elif event.key == K_2: - #add a circle - x,y = pygame.mouse.get_pos() - world.add.ball((100,0),radius=20) - #world.add.rect((100,0),width=40,height=20,angle=90) - #a+=10 - elif event.key == K_3: - x,y = pygame.mouse.get_pos() - world.add.ball((200,0),radius=20) - elif event.key == K_4: - x,y = pygame.mouse.get_pos() - world.add.ball((300,0),radius=30) - elif event.key == K_5: - x,y = pygame.mouse.get_pos() - world.add.ball((400,0),radius=40) - elif event.key == K_6: - x,y = pygame.mouse.get_pos() - world.add.ball((500,0),radius=50) - elif event.key == K_7: - x,y = pygame.mouse.get_pos() - world.add.ball((x,y),radius=60) - #elif event.key == K_8: - # x,y = pygame.mouse.get_pos() - # world.add.ball((x,y),radius=20) - - elif event.key == K_9: - # Add many triangles - x, y = pygame.mouse.get_pos() - for i in range(5): - for j in range(5): - world.add.triangle((x-i,y-j), sidelength=20) - #a+=10 # Rotate 10 degs - - elif event.key == K_8: - #add many boxes - x,y = pygame.mouse.get_pos() - #for i in range(5): - # for j in range(5): - i = 0 - for j in range(20): - world.add.rect((x-i,y-(j*500)),width=20,height=10,angle=a) - #world.add.ball((x,y-(j*500)),radius=60) - #a+=10 - # Clear Display - screen.fill((255,255,255)) +# set up pygame +pygame.init() +size = (700,700) +screen = pygame.display.set_mode(size) +clock = pygame.time.Clock() +font = pygame.font.Font(None, 24) # font object + +# set up the world +world = elements.Elements(size) +world.renderer.set_surface(screen) - # Update & Draw World - world.update() - world.draw() +# load enviornment +world.add.ground() - if jb1pos: - pygame.draw.line(screen,THECOLORS["red"],jb1pos,pygame.mouse.get_pos(),3) +# setup tools +tools = { + "triangle": TriangleTool(), + # "box": BoxTool(), + "circle": CircleTool(), + # "joint": JointTool(), + # "grab": GrabTool() +} +currentTool = tools["triangle"] -# pygame.draw.aaline(screen,THECOLORS["red"],(0,0),(1200,900),20) +# Main Loop: +while True: + for event in pygame.event.get(): + currentTool.handleEvents(event) + + # Clear Display + screen.fill((255,255,255)) + # Update & Draw World + world.update() + world.draw() + + # draw output from tools + currentTool.draw() - # Flip Display - pygame.display.flip() - - # Try to stay at 30 FPS - clock.tick(30) # originally 50 - x,y = pygame.mouse.get_pos() - + #Print all the text on the screen
+ text = font.render("Current Tool: "+currentTool.name, True, (100,100,255))
+ textpos = text.get_rect(left=1,top=1)
+ screen.blit(text,textpos) - # output framerate in caption - pygame.display.set_caption("x: %i | y: %i | elements: %i | fps: %i" % (x, y, world.element_count, int(clock.get_fps()))) -if __name__ == "__main__": - main() + # Flip Display + pygame.display.flip() + + # Try to stay at 30 FPS + clock.tick(30) # originally 50 |