mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-26 05:02:31 -06:00
72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
|
from pandac.PandaModules import *
|
||
|
|
from direct.showbase.PythonUtil import reduceAngle
|
||
|
|
from otp.movement import Impulse
|
||
|
|
import math
|
||
|
|
|
||
|
|
class PetChase(Impulse.Impulse):
|
||
|
|
|
||
|
|
def __init__(self, target = None, minDist = None, moveAngle = None):
|
||
|
|
Impulse.Impulse.__init__(self)
|
||
|
|
self.target = target
|
||
|
|
if minDist is None:
|
||
|
|
minDist = 5.0
|
||
|
|
self.minDist = minDist
|
||
|
|
if moveAngle is None:
|
||
|
|
moveAngle = 20.0
|
||
|
|
self.moveAngle = moveAngle
|
||
|
|
self.lookAtNode = NodePath('lookatNode')
|
||
|
|
self.lookAtNode.hide()
|
||
|
|
self.vel = None
|
||
|
|
self.rotVel = None
|
||
|
|
return
|
||
|
|
|
||
|
|
def setTarget(self, target):
|
||
|
|
self.target = target
|
||
|
|
|
||
|
|
def destroy(self):
|
||
|
|
self.lookAtNode.removeNode()
|
||
|
|
del self.lookAtNode
|
||
|
|
del self.target
|
||
|
|
del self.vel
|
||
|
|
del self.rotVel
|
||
|
|
|
||
|
|
def _setMover(self, mover):
|
||
|
|
Impulse.Impulse._setMover(self, mover)
|
||
|
|
self.lookAtNode.reparentTo(self.nodePath)
|
||
|
|
self.vel = self.VecType(0)
|
||
|
|
self.rotVel = self.VecType(0)
|
||
|
|
|
||
|
|
def _process(self, dt):
|
||
|
|
Impulse.Impulse._process(self, dt)
|
||
|
|
me = self.nodePath
|
||
|
|
target = self.target
|
||
|
|
targetPos = target.getPos(me)
|
||
|
|
x = targetPos[0]
|
||
|
|
y = targetPos[1]
|
||
|
|
distance = math.sqrt(x * x + y * y)
|
||
|
|
self.lookAtNode.lookAt(target)
|
||
|
|
relH = reduceAngle(self.lookAtNode.getH(me))
|
||
|
|
epsilon = 0.005
|
||
|
|
rotSpeed = self.mover.getRotSpeed()
|
||
|
|
if relH < -epsilon:
|
||
|
|
vH = -rotSpeed
|
||
|
|
elif relH > epsilon:
|
||
|
|
vH = rotSpeed
|
||
|
|
else:
|
||
|
|
vH = 0
|
||
|
|
if abs(vH * dt) > abs(relH):
|
||
|
|
vH = relH / dt
|
||
|
|
if distance > self.minDist and abs(relH) < self.moveAngle:
|
||
|
|
vForward = self.mover.getFwdSpeed()
|
||
|
|
else:
|
||
|
|
vForward = 0
|
||
|
|
distanceLeft = distance - self.minDist
|
||
|
|
if distance > self.minDist and vForward * dt > distanceLeft:
|
||
|
|
vForward = distanceLeft / dt
|
||
|
|
if vForward:
|
||
|
|
self.vel.setY(vForward)
|
||
|
|
self.mover.addShove(self.vel)
|
||
|
|
if vH:
|
||
|
|
self.rotVel.setX(vH)
|
||
|
|
self.mover.addRotShove(self.rotVel)
|