def draw(self, context):
super(World, self).draw(context)
if self.show_grid:
self.displaygrid(context)
# render inhabitants
for inhabitant in self.inhabitants:
# cull
# render relationships
context.set_source_rgb(0.0, 0.0, 0.0)
context.set_line_width(0.4)
if TheMouse.connecting is not None: # relationship in progress
(x1,y1) = TheMouse.connecting.position#_output
(x2,y2) = (TheMouse.last_motion_x, TheMouse.last_motion_y)
# clip
(discard, discard, x1, y1) = MathLib.clip_line_to_rectangle(x1, y1, x2, y2, TheMouse.connecting)
context.move_to(x1, y1)
context.line_to(x2, y2)
context.stroke()
self.arrowhead(context, x2, y2, x1, y1, 1.5)
if TheMouse.associating is not None: # association in progress
object = TheMouse.associating
radius = object.decorator_size / max(object.scale_x, object.scale_y)
(x,y) = (TheMouse.last_motion_x, TheMouse.last_motion_y)
context.move_to(x - radius, y)
context.arc(x, y, radius, -math.pi, 0.0)
context.stroke()
for output in inhabitant.outputs():
# clip
(discard, discard, x1, y1) = MathLib.clip_line_to_rectangle(inhabitant.x, inhabitant.y, output.x, output.y, inhabitant)
(discard, discard, x2, y2) = MathLib.clip_line_to_rectangle(output.x, output.y, inhabitant.x, inhabitant.y, output)
context.move_to(x1, y1)
context.line_to(x2, y2)
context.stroke()
self.arrowhead(context, x2, y2, x1, y1, 1.5)
# render inhabitant
context.save()
(x, y) = inhabitant.position
context.translate(x, y)
if inhabitant.rotation != 0:
context.rotate(math.radians(inhabitant.rotation))
scale = max(inhabitant.world_width / (self.unit_range*2.0), inhabitant.world_height / (self.unit_range*2.0))
context.scale(scale, scale)
#scale_x = inhabitant.world_width / (self.unit_range * 2.0)
#scale_y = inhabitant.world_height / (self.unit_range * 2.0)
#context.scale(scale_x, scale_y)
inhabitant.draw(context)
context.restore()
def receives__look(self):
"""return heading of first object seen"""
# set up view poly
self.Ax = 0.0
self.Ay = 0.0
self.Bx = (self.sight_distance * math.cos(math.radians(self.rotation - 45.0)))
self.By = (self.sight_distance * math.sin(math.radians(self.rotation - 45.0)))
self.Cx = (self.sight_distance * math.cos(math.radians(self.rotation + 45.0)))
self.Cy = (self.sight_distance * math.sin(math.radians(self.rotation + 45.0)))
poly_x = [self.Ax, self.Bx, self.Cx]
poly_y = [self.Ay, self.By, self.Cy]
# for every inhabitant
for inhabitant in TheWorld.inhabitants:
if inhabitant == self:
continue
# get pos of inhabitant relative to fov unit square coords
Px = (inhabitant.x / self.width) - (self.x / self.width)
Py = (inhabitant.y / self.height) - (self.y / self.width)
if MathLib.polygon_test(Px, Py, poly_x, poly_y):
ret = 0.0
Dx = inhabitant.x - self.x
Dy = inhabitant.y - self.y
ret = math.degrees(math.atan2(Dy, Dx))
if ret < 0:
ret += 360.0
#print "I can see: ", inhabitant, "at", ret, "degrees"
return ret - self.rotation
def receives__forward(self, value = random() * 0.01):
# calculate new x,y pos for vector of mag value at angle self.rotation
# sin(rotation) = y / h
# cos(rotation) = x / h
# tan(rotation) = y / x
# POSx = -(value) * (cos(rotation))
# POSy = +(value) * (sin(rotation))
new_x = (value * math.cos(math.radians(self.rotation)))
new_y = (value * math.sin(math.radians(self.rotation)))
# naive collision detection - TODO Optimizing _this_ would increase fps radically
for inhabitant in TheWorld.inhabitants:
if inhabitant == self or inhabitant.__class__ == widgets.graph.Graph: # TODO graph needs to have a center_x/y !
continue
if MathLib.distance_test(self.center_x + new_x, self.center_y + new_y, \
inhabitant.center_x, inhabitant.center_y, \
0.025):
self.x -= new_x / 2.0
self.y -= new_y / 2.0
self.left(60.0)
return
self.x += new_x
self.y += new_y
# wrap screen
if self.x < -1.0:
self.x = 1.0
if self.y < -1.0:
self.y = 1.0
if self.x > 1.0:
self.x = -1.0
if self.y > 1.0:
self.y = -1.0
def hit_test(self, pointer_x, pointer_y):
# translate to local coords
(x, y) = self._translate_pointer_local(pointer_x, pointer_y)
self.mouse_over_property = MathLib.rect_test(x, y,
0.0, -self.world_height-(self.decorator_size/4.0),
self.decorator_size, self.decorator_size/2.0)
return Newton.hit_test(self, pointer_x, pointer_y)
def draw(self, context): context.restore() # TODO: FIX !!!! -> cheating to get access to world coords (x1,y1,x2,y2) = MathLib.calc_connector(self.source, self.sink) context.set_source_rgb(0.0, 0.0, 1.0) context.set_line_width(5.0) context.move_to(x1, y1) context.line_to(x2, y2) #gradient = cairo.LinearGradient(self.source.x - 5.0, self.source.y - 5.0, self.source.x - 5.0, self.sink.y + 5.0) #gradient.add_color_stop_rgba(0.0, 0.0, 0.0, 1.0, 0.2) #gradient.add_color_stop_rgba(1.0, 0.0, 0.0, 1.0, 0.8) #context.set_source(gradient) context.stroke() context.save() # TODO: FIX !!!! -> cheating to get access to world coords
def hit_test(self, pointer_x, pointer_y):
(pointer_x, pointer_y) = self._translate_pointer(pointer_x, pointer_y)
hit = MathLib.rect_test(
pointer_x,
pointer_y,
self.x,
self.y,
# self.world_width, self.world_height)
self.world_width + self.decorator_size,
self.world_height + self.decorator_size,
)
# if not hit:
# return False
# check decorations -> Lower right
pointer_x = (pointer_x - self.x) * 2.0
pointer_y = (pointer_y - self.y) * 2.0
self.mouse_over_sizer = MathLib.rect_test(
pointer_x, pointer_y, self.world_width, self.world_height, self.decorator_size, self.decorator_size
)
self.mouse_over_scaler = MathLib.rect_test(
pointer_x, pointer_y, -self.world_width, self.world_height, self.decorator_size, self.decorator_size
)
self.mouse_over_rotater = MathLib.rect_test(
pointer_x, pointer_y, self.world_width, -self.world_height, self.decorator_size, self.decorator_size
)
self.mouse_over_input = MathLib.rect_test(
pointer_x,
pointer_y,
-self.world_width - (self.decorator_size / 2.0),
0,
self.decorator_size,
self.decorator_size,
)
self.mouse_over_output = MathLib.rect_test(
pointer_x,
pointer_y,
self.world_width + (self.decorator_size / 2.0),
0,
self.decorator_size,
self.decorator_size,
)
return hit
def hit_test(self, x, y): return MathLib.rect_test(x, y, self.x, self.y, self.width, self.height)
def __init__(self, x, y, num_particles = [], do_reaction = False):
Reactor.__init__(self, x, y, do_reaction=do_reaction)
#self._ode_world.setGravity( (0,100.0,0) )
# some helpful constants
pipe_size = 50.0
thick = 2.0
spacing = 1.0
# To create a wall:
#
# self.create_wall(x, y,
# width, height)
#
# For example:
#
# A baffle:
#
# self.create_wall(0, 0, self.right - thick - spacing, thick)
#
# (0,0 would be the center of the reactor)
#
# top long
self.create_wall(self.left-pipe_size, self.top,
self.width+pipe_size, thick)
# top short
self.create_wall(self.left-pipe_size, self.top+pipe_size-thick,
pipe_size+thick, thick)
# input cap
self.create_wall(self.left-pipe_size-thick-spacing, self.top,
thick, pipe_size)
# left
self.create_wall(self.left, self.top+pipe_size+spacing,
thick, self.height-pipe_size-thick-(spacing*2))
# right
self.create_wall(self.right-thick, self.top+thick+spacing,
thick, self.height-pipe_size-thick-(spacing*2))
# bottom short
self.create_wall(self.right-thick, self.bottom-pipe_size,
pipe_size+thick, thick)
# bottom long
self.create_wall(self.left, self.bottom-thick,
self.width+pipe_size, thick)
# To create the reactor input:
#
# self.create_input(x, y)
#
self.create_input(self.left - (pipe_size / 2.0) - 6.0, # - ReactorParticle.particle_radius,
self.top + (pipe_size / 2.0))
# To create the reactor output:
#
# self.create_output(x, y, size)
#
self.create_output(self.right+pipe_size,
self.bottom-(pipe_size/2.0),
40.0)
# Initialize the system with some particles
if len(num_particles) > 0:
n = 0
for count in num_particles:
w = (abs(self.left) + abs(self.right))
grid = MathLib.make_grid(count, w)
for (x,y) in grid:
self.add_body(ReactorParticle(color=colour.list[n],
newton=None, # TODO - fix bug where ode_init called twice when constructing w/ a newton
initial_position=(x, y),
initial_force=(0,0)))
n += 1