def __init__(self):
base.disableMouse()
# This disables the default mouse based camera control used by panda. This default control is awkward, and won't be used.
base.camera.setPos(0,20,20)
base.camera.lookAt(0,0,0)
# Gives the camera an initial position and rotation.
self.mx,self.my=0,0
# Sets up variables for storing the mouse coordinates
self.orbiting=False
# A boolean variable for specifying whether the camera is in orbiting mode. Orbiting mode refers to when the camera is being moved
# because the user is holding down the right mouse button.
self.target=Vec3()
# sets up a vector variable for the camera's target. The target will be the coordinates that the camera is currently focusing on.
self.camDist = 40
# A variable that will determine how far the camera is from it's target focus
self.panRateDivisor = 20
# This variable is used as a divisor when calculating how far to move the camera when panning. Higher numbers will yield slower panning
# and lower numbers will yield faster panning. This must not be set to 0.
self.panZoneSize = .15
# This variable controls how close the mouse cursor needs to be to the edge of the screen to start panning the camera. It must be less than 1,
# and I recommend keeping it less than .2
self.panLimitsX = Vec2(-20, 20)
self.panLimitsY = Vec2(-20, 20)
# These two vairables will serve as limits for how far the camera can pan, so you don't scroll away from the map.
self.setTarget(0,0,0)
# calls the setTarget function to set the current target position to the origin.
self.turnCameraAroundPoint(0,0)
# calls the turnCameraAroundPoint function with a turn amount of 0 to set the camera position based on the target and camera distance
self.accept("mouse3",self.startOrbit)
# sets up the camrea handler to accept a right mouse click and start the "drag" mode.
self.accept("mouse3-up",self.stopOrbit)
# sets up the camrea handler to understand when the right mouse button has been released, and ends the "drag" mode when
# the release is detected.
# The next pair of lines use lambda, which creates an on-the-spot one-shot function.
self.accept("wheel_up",lambda : self.adjustCamDist(0.9))
# sets up the camera handler to detet when the mouse wheel is rolled upwards and uses a lambda function to call the
# adjustCamDist function with the argument 0.9
self.accept("wheel_down",lambda : self.adjustCamDist(1.1))
# sets up the camera handler to detet when the mouse wheel is rolled upwards and uses a lambda function to call the
# adjustCamDist function with the argument 1.1
taskMgr.add(self.camMoveTask,'camMoveTask')
def restart(self):
"""Start or restart the plugin."""
self.draw = Draw() # Utility for drawing 2D lines and shapes in 3-space
path = Path([Vec2(40,40),Vec2(40,-40),Vec2(-40,40),Vec2(-40,-40)])
for vehicle in self.vehicles[:3]:
vehicle._pos = SteerVec((random.random()-0.5)*100,(random.random()-0.5)*100)
vehicle._velocity = SteerVec((random.random()-0.5)*2,(random.random()-0.5)*2)
vehicle.followPath(path,loop=True)
c=(.6,.6,.6,.3)
t=1
z=1.5
self.draw.drawLine(Vec3(path[0].getX(),path[0].getY(),z),Vec3(path[1].getX(),path[1].getY(),z),color=c,thickness=t)
self.draw.drawLine(Vec3(path[1].getX(),path[1].getY(),z),Vec3(path[2].getX(),path[2].getY(),z),color=c,thickness=t)
self.draw.drawLine(Vec3(path[2].getX(),path[2].getY(),z),Vec3(path[3].getX(),path[3].getY(),z),color=c,thickness=t)
self.draw.drawLine(Vec3(path[3].getX(),path[3].getY(),z),Vec3(path[0].getX(),path[0].getY(),z),color=c,thickness=t)
path = Path([Vec2(-40,-40),Vec2(40,-40),Vec2(-40,40),Vec2(40,40)])
for vehicle in self.vehicles[3:]:
vehicle._pos = SteerVec((random.random()-0.5)*100,(random.random()-0.5)*100)
vehicle._velocity = SteerVec((random.random()-0.5)*2,(random.random()-0.5)*2)
vehicle.followPath(path,loop=True)
self.draw.drawLine(Vec3(path[0].getX(),path[0].getY(),z),Vec3(path[1].getX(),path[1].getY(),z),color=c,thickness=t)
self.draw.drawLine(Vec3(path[1].getX(),path[1].getY(),z),Vec3(path[2].getX(),path[2].getY(),z),color=c,thickness=t)
self.draw.drawLine(Vec3(path[2].getX(),path[2].getY(),z),Vec3(path[3].getX(),path[3].getY(),z),color=c,thickness=t)
self.draw.drawLine(Vec3(path[3].getX(),path[3].getY(),z),Vec3(path[0].getX(),path[0].getY(),z),color=c,thickness=t)
for vehicle in self.vehicles:
vehicle.avoidObstacles = True
vehicle.avoidVehicles = True
vehicle.maxforce = 0.1
vehicle.maxspeed = 0.5 + (random.random()/2)
node = self.draw.create()
np = NodePath(node)
np.reparentTo(render)
def _drawHole(self, x, y):
center = Vec2(x, y)
ul = center - Vec2(self._radius, self._radius)
lr = center + Vec2(self._radius, self._radius)
x = int(ul[0])
while x <= lr[0]:
y = int(ul[1])
while y <= lr[1]:
if x > 0 and y > 0 and x < self._maskResolution and y < self._maskResolution:
self._revealFunctions[self._revealFunction](x, y, center)
y += 1
x += 1
self.maskTexture.load(self._maskImage)
self.mask.setTexture(self.maskTexture, 1)
def grassTexture(imgSize=(256,256)):
"""Return a green, 'grassy' texture (PNMImage) of the given image size,
produced using 2D Perlin noise."""
# Initialuse the PNMImage object
img = PNMImage(*imgSize)
# Initalise 4 PerlinNoise2 objects to produce noise at different scales
noise1 = PerlinNoise2()
noise1.setScale(2.0)
noise2 = PerlinNoise2()
noise2.setScale(5.0)
noise3 = PerlinNoise2()
noise3.setScale(0.25)
noise4 = PerlinNoise2()
noise4.setScale(0.125)
# For each pixel in the image, set the red and blue values of the pixel to
# constant values, and set the green value of the pixel using all 4
# PerlinNoise2 objects.
red = 0.125 # Colour values in PNMImage are doubles in the range [0.0,1.0]
blue = 0.0625
for x in xrange(imgSize[0]):
for y in xrange(imgSize[1]):
img.setRed(x,y,red)
img.setBlue(x,y,blue)
pos = Vec2(1.0/32*x, 1.0/32*y)
img.setGreen(x,y,(0.5 + noise1(pos)*0.0625 + noise2(pos)*0.0625 +
noise3(pos)*0.125 + noise4(pos)*0.0625))
return img
def OnUpdate(self, task):
"""
Task to control mouse events. Gets called every frame and will update
the scene accordingly.
"""
p3d.Camera.OnUpdate(self, task)
# Return if no mouse is found or alt not down
if not self.mouseWatcherNode.hasMouse(
) or not p3d.MOUSE_ALT in self.mouse.modifiers:
return
# ORBIT - If left mouse down
if self.mouse.buttons[0]:
self.Orbit(
Vec2(self.mouse.dx * self.speed, self.mouse.dy * self.speed))
# DOLLY - If middle mouse down
elif self.mouse.buttons[1]:
self.Move(
Vec3(self.mouse.dx * self.speed, 0,
-self.mouse.dy * self.speed))
# ZOOM - If right mouse down
elif self.mouse.buttons[2]:
self.Move(Vec3(0, -self.mouse.dx * self.speed, 0))
def _revealSmoothCircle(self, x, y, center):
length = (Vec2(x, y) - center).length()
goalAlpha = max(0.0, length / float(self._radius) - 0.5)
self._maskImage.setXelA(
x, y,
VBase4D(0.0, 0.0, 0.0,
min(self._maskImage.getAlpha(x, y), goalAlpha * 2.0)))
def setPolygonalNeighbors(self, prev, next):
vecToPrev = prev.pos - self.pos
vecToNext = next.pos - self.pos
angle = vecToPrev.signedAngleDeg(vecToNext)
angle %= 360 # Convert this to an unsigned angle.
self.prevPolyNeighbor = prev
self.nextPolyNeighbor = next
self.interiorAngle = angle
prevAngle = Vec2(1, 0).signedAngleDeg(vecToPrev)
extrudeAngle = prevAngle + self.interiorAngle / 2.0 + 180
extrudeAngle *= math.pi / 180 # Degrees to radians
self.extrudeVector = Vec2(math.cos(extrudeAngle),
math.sin(extrudeAngle))
def wander(self, elapsed):
pos = Vec2(self.getPos().xy)
r = elapsed * self.maxSpeed * 3
if (pos - self.startPosition).length() > self.wanderRadius:
change = self.startPosition - pos
change.normalize()
change *= r
else:
change = Vec2(random.uniform(-r, r), random.uniform(-r, r))
desiredVelocity = self.wanderVelocity + change
desiredVelocity.normalize()
desiredVelocity *= self.maxSpeed
self.wanderVelocity = desiredVelocity
desiredHeading = math.degrees(
math.atan2(desiredVelocity.y, desiredVelocity.x)) + 90
desiredVelocity = Vec3(desiredVelocity.x, desiredVelocity.y, 0)
#logging.info( desiredVelocity)
self.move(desiredVelocity, desiredHeading, elapsed)
def __init__(self, parent):
wx.Window.__init__(self, parent)
self.points = []
self.curvepoints = []
self.SetBackgroundColour(wx.Colour(255, 255, 255))
self.Bind(wx.EVT_PAINT, self.onPaint)
self.Bind(wx.EVT_LEFT_DOWN, self.onLeftDown)
self.Bind(wx.EVT_LEFT_UP, self.onLeftUp)
self.Bind(wx.EVT_RIGHT_UP, self.onAddPoint)
self.Bind(wx.EVT_MOUSEWHEEL, self.onZoom)
self.Bind(wx.EVT_SIZE, self.onSize)
self.Bind(wx.EVT_MOTION, self.onMotion)
self.active_point = None
self.max_value = 50
self.points = [Vec2(-10, -20), Vec2(0, 20), Vec2(10, -20)]
self.actualizePoints()
def greenNoise(imgSize=(32,32),scale=0.25):
"""Return a PNMImage of the given size containing Perlin noise at the given
scale in the green colour values of the image pixels."""
# Initialuse the PNMImage object
img = PNMImage(*imgSize)
# Initalise PerlinNoise2 object
noise = PerlinNoise2()
noise.setScale(scale)
# Fill in the pixels of img, setting the red and blue values of each pixel
# to 0 and the green value to Perlin noise.
for x in xrange(imgSize[0]):
for y in xrange(imgSize[1]):
img.setRed(x,y,0)
img.setBlue(x,y,0)
pos = Vec2(1.0/32*x, 1.0/32*y)
img.setGreen(x,y,(noise(pos)+1.0)/2.0)
return img
def __init__(self, heightFunction, x=0, y=0):
NodePath.__init__(self, "Creature")
self.reparentTo(render)
self.startPosition = Vec2(x, y)
z = heightFunction(x, y)
self.setPos(x, y, z)
# movement
self.acceleration = 25
self.velocity = Vec3(0, 0, 0)
self.maxSpeed = 10
self.speed = 0
self.maxAngularVelocity = 360
self.turbo = 1
self.maxStoppingDistance = self.maxSpeed / self.acceleration * 0.5
self.body = Actor("models/ralph", {
"run": "models/ralph-run",
"walk": "models/ralph-walk"
})
self.body.setScale(0.25)
self.body.reparentTo(self)
self.heightFunction = heightFunction
def directionalVector(rads, speed):
return Vec2(cos(rads), sin(rads)) * speed
def getMouseVec(self):
""" returns mouse vector """
md = base.win.getPointer(0)
return Vec2(md.getX(), md.getY())
def directionalVector(heading, speed):
rads = radians(heading)
return Vec2(cos(rads), sin(rads)) * speed
def __init__(self, fov=60.0, pos=(-10, -100, 25), lookAt=(0, 0, 0)):
# Camera field of view
self.fov = fov
# Camera position
self.pos = Vec3(pos)
# Point the camera looks at
self.lookAt = Vec3(lookAt)
# Camera target. This is what the camera should be looking at
self.target = Vec3(lookAt)
#
camVec = (self.target - self.pos)
self.camDist = camVec.length()
#LOG.debug("self.pos = %s, self.target = %s, self.camDist = %s" % (self.pos, self.target, self.camDist))
# Camera state variables
self.movingUp = False
self.movingDown = False
self.movingLeft = False
self.movingRight = False
self.dragging = False
# The gutter is the area around the border of the screen where
# the mouse cursor entering this area triggers the panning action
self.leftgutter = -0.8
self.rightgutter = 0.8
self.bottomgutter = -0.8
self.topgutter = 0.8
# Mouse position from previous event. Used to calculate distance the
# mouse has moved.
self.mx = 0
self.my = 0
self.mpos = Vec2(0, 0)
# Options
self.gutterdrive = False
# Factor used to convert mouse movement into world movement
self.gutterdriveMouseFactor = 100
self.panMouseFactor = 2000
self.zoomFactor = 3
# Build the camera rotation maticies
self.leftrightRotationDegrees = 0.5
self.updownRotationDegrees = 2
rSin = math.sin(self.leftrightRotationDegrees * RAD_FACTOR)
rCos = math.cos(self.leftrightRotationDegrees * RAD_FACTOR)
self.leftMatrix = Mat3(rCos, rSin, 0, -rSin, rCos, 0, 0, 0, 1)
self.rightMatrix = Mat3(rCos, -rSin, 0, rSin, rCos, 0, 0, 0, 1)
rSin = math.sin(self.updownRotationDegrees * RAD_FACTOR)
rCos = math.cos(self.updownRotationDegrees * RAD_FACTOR)
self.upMatrix = Mat3(rCos, 0, -rSin, 0, 1, 0, rSin, 0, rCos)
self.downMatrix = Mat3(
rCos,
0,
rSin,
0,
1,
0,
-rSin,
0,
rCos,
)
def __init__(self, showbase):
self.showbase = showbase
self.showbase.disableMouse()
# This disables the default mouse based camera control used by panda. This default control is awkward, and won't be used.
self.showbase.camera.setPos(0, -150, 200)
self.showbase.camera.lookAt(0, 0, 0)
# Gives the camera an initial position and rotation.
self.mx, self.my = 0, 0
# Sets up variables for storing the mouse coordinates
self.orbiting = False
# A boolean variable for specifying whether the camera is in orbiting mode. Orbiting mode refers to when the camera is being moved
# because the user is holding down the right mouse button.
self.target = Vec3()
# sets up a vector variable for the camera's target. The target will be the coordinates that the camera is currently focusing on.
self.camDist = 150
# A variable that will determine how far the camera is from it's target focus
self.panRateDivisor = 10
# This variable is used as a divisor when calculating how far to move the camera when panning. Higher numbers will yield slower panning
# and lower numbers will yield faster panning. This must not be set to 0.
self.panZoneSize = .1
# This variable controls how close the mouse cursor needs to be to the edge of the screen to start panning the camera. It must be less than 1,
# and I recommend keeping it less than .2
self.panLimitsX = Vec2(-1000, 1000)
self.panLimitsY = Vec2(-1000, 1000)
# These two vairables will serve as limits for how far the camera can pan, so you don't scroll away from the map.
self.maxZoomOut = 500
self.maxZoomIn = 25
#These two variables set the max distance a person can zoom in or out
self.orbitRate = 75
# This is the rate of speed that the camera will rotate when middle mouse is pressed and mouse moved
# recommended rate 50-100
self.setTarget(0, 0, 0)
# calls the setTarget function to set the current target position to the origin.
self.turnCameraAroundPoint(0, 0)
# calls the turnCameraAroundPoint function with a turn amount of 0 to set the camera position based on the target and camera distance
self.accept("mouse2", self.startOrbit)
# sets up the camrea handler to accept a right mouse click and start the "drag" mode.
self.accept("mouse2-up", self.stopOrbit)
# sets up the camrea handler to understand when the right mouse button has been released, and ends the "drag" mode when
# the release is detected.
self.storeX = 0
self.storeY = 0
# for storing of the x and y for the orbit
# The next pair of lines use lambda, which creates an on-the-spot one-shot function.
self.accept("wheel_up", self.zoomIn)
# sets up the camera handler to detet when the mouse wheel is rolled upwards and uses a lambda function to call the
# adjustCamDist function with the argument 0.9
self.accept("wheel_down", self.zoomOut)
# sets up the camera handler to detet when the mouse wheel is rolled upwards and uses a lambda function to call the
# adjustCamDist function with the argument 1.1
# Keys array (down if 1, up if 0)
self.keys = {"cam-left": 0, "cam-right": 0, "cam-up": 0, "cam-down": 0}
# Using Arrow Keys
self.accept("arrow_left", self.setValue, [self.keys, "cam-left", 1])
self.accept("arrow_right", self.setValue, [self.keys, "cam-right", 1])
self.accept("arrow_up", self.setValue, [self.keys, "cam-up", 1])
self.accept("arrow_down", self.setValue, [self.keys, "cam-down", 1])
self.accept("arrow_left-up", self.setValue, [self.keys, "cam-left", 0])
self.accept("arrow_right-up", self.setValue,
[self.keys, "cam-right", 0])
self.accept("arrow_up-up", self.setValue, [self.keys, "cam-up", 0])
self.accept("arrow_down-up", self.setValue, [self.keys, "cam-down", 0])
self.keyPanRate = 1.5
# pan rate for when user presses the arrow keys
# set up plane for checking collision with for mouse-3d world
self.plane = Plane(Vec3(0, 0, 1), Point3(0, 0, 0))
def _flareTask(self, task):
#going through the list of lightNodePaths
#for index in xrange(0, len(self.lightNodes)):
pos2d = self._get2D(self.sunlight)
#if the light source is visible from the cam's point of view,
# display the lens-flare
if pos2d:
#print ("Flare visible")
# The the obscured factor
obscured = self._getObscured(self.suncardcolor)
# Scale it to [0,1]
self.obscured = obscured / 100
##print obscured
# Length is the length of the vector that goes from the screen
# middle to the pos of the light. The length gets smaller the
# closer the light is to the screen middle, however, since
# length is used to calculate the brightness of the effect we
# actually need an inverse behaviour, since the brightness
# will be greates when center of screen= pos of light
length = math.sqrt(pos2d.getX() * pos2d.getX() +
pos2d.getY() * pos2d.getY())
invLength = 1.0 - length * 2
# Subtract the obscured factor from the inverted distence and
# we have a value that simulates the power of the flare
#brightness
flarePower = invLength - self.obscured
#print("light pos=%s | length=%s"%(pos2d,length))
print("obs=%s | length=%s | inv=%s | pow=%s" %
(self.obscured, length, invLength, flarePower))
# Clamp the flare power to some values
if flarePower < 0 and self.obscured > 0: flarePower = 0.0
if flarePower < 0 and self.obscured <= 0: flarePower = 0.3
if flarePower > 1: flarePower = 1
print("flarepower=%s" % (flarePower))
#
if self.obscured >= 0.8:
self.texcardNP.find('**/Sun:starburstNode').hide()
else:
self.texcardNP.find('**/Sun:starburstNode').show()
#drawing the lens-flare effect...
r = self.suncolor.getX()
g = self.suncolor.getY()
b = self.suncolor.getZ()
r = math.sqrt(r * r + length * length) * self.strength
g = math.sqrt(g * g + length * length) * self.strength
b = math.sqrt(b * b + length * length) * self.strength
print("%s,%s,%s" % (r, g, b))
#
if self.obscured > 0.19:
a = self.obscured - 0.2
else:
a = 0.4 - flarePower
#
if a < 0: a = 0
if a > 0.8: a = 0.8
#
self.hdr.setColor(r, g, b, 0.8 - a)
self.hdr.setR(90 * length)
self.texcardNP.find('**/Sun:starburstNode').setColor(
r, g, b, 0.5 + length)
self.hdr.setPos(pos2d.getX(), 0, pos2d.getY())
self.hdr.setScale(8.5 + (5 * length))
vecMid = Vec2(self.mid2d.getX(), self.mid2d.getZ())
vec2d = Vec2(vecMid - pos2d)
vec3d = Vec3(vec2d.getX(), 0, vec2d.getY())
self.starburst_0.setPos(self.hdr.getPos() - (vec3d * 10))
self.starburst_1.setPos(self.hdr.getPos() - (vec3d * 5))
self.starburst_2.setPos(self.hdr.getPos() - (vec3d * 10))
self.texcardNP.show()
#print "a",a
else:
#hide the lens-flare effect for a light source, if it is not visible...
self.texcardNP.hide()
return Task.cont
def _revealHardCircle(self, x, y, center):
length = (Vec2(x, y) - center).length()
if length <= self._radius:
self._maskImage.setXelA(x, y, VBase4D(0, 0, 0, 0))
def pointAlongLine(self, distance):
v = Vec2(self.direction)
v.normalize()
return self.pt1 + v * distance
def setWander(self, radius=50):
self.wanderVelocity = Vec2(0, 0)
self.wanderRadius = radius