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"""
This file is an example for using 'Elements'
Elements is a 2D Physics API for Python using Box2D
Home: http://elements.linuxuser.at
IRC: #elements on irc.freenode.net
Code: svn co http://svn2.assembla.com/svn/elements
http://www.assembla.com/wiki/show/elements
License: Examples: Public Domain -- No legal restrictions
Elements API: GPLv3
"""
import pygame
from pygame.locals import *
from pygame.color import *
import sys
sys.path.insert(0, "..") # if Elements has yet to be installed
import elements
def main():
# PyGame Init
pygame.init()
size = (800, 800)
screen = pygame.display.set_mode(size)
clock = pygame.time.Clock()
# Create the Physical Space Class
world = elements.Elements(size)
# Add A Ground
world.add.ground()
world.renderer.set_surface(screen)
# Default Settings
running = True
show = True
# Main Loop
while running:
for event in pygame.event.get():
if event.type == QUIT or (event.type == KEYDOWN and event.key == K_ESCAPE):
# Bye Bye
running = False
elif event.type == KEYDOWN and event.key == K_SPACE:
# Pause with SPACE
world.run_physics = not world.run_physics
elif event.type == MOUSEBUTTONDOWN and event.button == 1:
# Add Ball
world.add.rect(event.pos, width=40, height=20, dynamic=False)
elif event.type == MOUSEBUTTONDOWN and event.button == 3:
# Add Square
world.add.rect(event.pos, width=50, height=20)
elif event.type == KEYDOWN:
if event.unicode == "s":
show = not show
elif event.unicode == "1":
# Add many Balls
x, y = pygame.mouse.get_pos()
for i in range(5):
for j in range(5): world.add.ball((x-i,y-j), 20)
elif event.unicode == "2":
# Add many Balls
x, y = pygame.mouse.get_pos()
for i in range(5):
for j in range(5): world.add.rect((x-i,y-j), 20, 50)
# Update & Draw World
world.update()
screen.fill((255,255,255))
if show:
world.draw()
pygame.display.flip()
# Try to stay at 50 FPS
clock.tick(50)
# output framerate in caption
pygame.display.set_caption("elements: %i | fps: %i" % (world.element_count, int(clock.get_fps())))
if __name__ == "__main__":
main()
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