getting closer objects

Forums

IRC Channel

Panda3D Forum Index -> Scripting Issues

View previous topic :: View next topic

Author

Message

MuriloBD

Posts: 3

Posted: Wed Nov 26, 2008 4:05 pm Post subject: getting closer objects
i need to change the 3rd camera to the 1st camera when the char get closer to some object, like i need to create a type of a system of collision to detect the char when this get closer the object and change this to the 1st person cam. if anyone can help i would be greatfull.

ynjh_jo

Posts: 1596
Location: Malang, Indonesia

Posted: Thu Nov 27, 2008 1:09 am Post subject:

Perhaps something like this :

Code:

from pandac.PandaModules import *
import direct.directbase.DirectStart
from direct.showbase.DirectObject import DirectObject
from direct.interval.IntervalGlobal import *
from direct.actor.Actor import Actor
from direct.task import Task
import sys, types

base.cTrav = CollisionTraverser()
base.cTrav.setRespectPrevTransform(True)
BIT_OFF = BitMask32.allOff()
BIT_BODY = BitMask32.bit(1)
BIT_LEVEL = BitMask32.bit(2)
BIT_STUFF = BitMask32.bit(3)
SPEED=5
FWD=Vec3(0,1,0)
BWD=Vec3(0,-1,0)
LF=Vec3(-1,0,0)
RG=Vec3(1,0,0)
KEY_REG={}

def registerKey(key):
if type(key)==types.TupleType:
for k in key:
registerKey(k)
else:
if len(key)==1:
kb=KeyboardButton.asciiKey(key)
else:
if key=='del': key='_del'
kb=getattr(KeyboardButton,key)()
KEY_REG[key]=kb

def keyDown(key):
return base.mouseWatcherNode.isButtonDown(KEY_REG[key])

def loop(task):
dt=globalClock.getDt()
if dt>.02:
return Task.cont
vec=Vec3(0)
if keyDown('w'): vec+=FWD
if keyDown('s'): vec+=BWD
if keyDown('a'): vec+=LF
if keyDown('d'): vec+=RG

md = base.win.getPointer(0)
x = md.getX()
y = md.getY()
if base.win.movePointer(0, winXhalf, winYhalf):
avatar.setH(avatar, (x - winXhalf)*-0.1)
TPScam.setP( clampScalar(-80,80, TPScam.getP() - (y - winYhalf)*0.1) )
avatar.setFluidPos(avatar,vec*SPEED*dt)
camera.setFluidPos(camPos)
return Task.cont

def setTo1stCam(entry):
Sequence(
LerpFunc( camPos.setY, duration=.5,
fromData=camera.getY(),toData=.25, blendType='easeInOut'),
Func(avatar.hide),
LerpFunc( camPos.setX, duration=.5,
fromData=camera.getX(),toData=0, blendType='easeOut'),
).start()

print '1st cam'
def setTo3rdCam(entry):
Sequence(
LerpFunc( camPos.setX, duration=.15,
fromData=camera.getX(),toData=camPos3rd[0]),
Func(avatar.show),
LerpFunc( camPos.setY, duration=.5,
fromData=camera.getY(),toData=camPos3rd[1], blendType='easeInOut'),
).start()
print '3rd cam'

roomScale=35
wallHeight=.35
CM=CardMaker('')
CM.setFrame(-.5,.5,0,wallHeight)
room=render.attachNewNode('')
# walls
room.attachNewNode(CM.generate())
room.attachNewNode(CM.generate()).setH(180)
room.attachNewNode(CM.generate()).setH(90)
room.attachNewNode(CM.generate()).setH(-90)
floorTex=loader.loadTexture('maps/grid.rgb')
floorTex.setMinfilter(Texture.FTLinearMipmapLinear)
floorTex.setMagfilter(Texture.FTLinearMipmapLinear)
wallTex=loader.loadTexture('maps/lilsmiley.rgba')
wallTex.setMinfilter(Texture.FTLinearMipmapLinear)
for wall in room.getChildrenAsList():
wall.setY(wall,.5)
wall.setTexture(wallTex)
wall.setTexScale(TextureStage.getDefault(),roomScale,wallHeight*roomScale)
# floor
CM.setFrame(-.5,.5,-.5,.5)
floor=room.attachNewNode(CM.generate())
floor.setTexture(floorTex)
floor.setP(-90)
room.setScale(roomScale)
room.setTransparency(TransparencyAttrib.MAlpha)
room.setTwoSided(1)
room.flattenLight()
room.setCollideMask(BIT_LEVEL)

avatar=render.attachNewNode('avatar')
avatar.setPos(-12,-12,0)
avatar.setH(-30)
panda=Actor('panda',{'walk':'panda-walk'})
panda.reparentTo(avatar)
# print panda.getTightBounds()
panda.setScale(.15)
panda.setH(180)
panda.flattenLight()
panda.loop('walk')

# setup collisions for avatar and camera
bodyRadius=.7
reachRadius=10
avatarSphere=avatar.attachCollisionSphere( 'avatarBody', 0,.2,bodyRadius,bodyRadius,
BIT_LEVEL|BIT_STUFF, BIT_BODY)
avatarReach=avatar.attachCollisionSphere( 'reach', 0,0,0,reachRadius,
BIT_STUFF, BIT_OFF)
TPScam=avatar.attachNewNode('')
TPScam.setZ(1.5)
TPScamSphere=camera.attachCollisionSphere( 'camSphere', 0,0,0,.2,
BIT_LEVEL|BIT_BODY, BIT_OFF)
camPos3rd=Point3(0.43, -3, 0)
# wrap it so we get a brand new Point3,
# to avoid accidentally modifying the original camPos3rd
camPos=Point3(camPos3rd)
camera.reparentTo(TPScam)
camera.setPos(camPos)

pandaPUSHER = CollisionHandlerPusher()
pandaPUSHER.addCollider(avatarSphere,avatar)
base.cTrav.addCollider(avatarSphere,pandaPUSHER)

camPUSHER = CollisionHandlerPusher()
camPUSHER.addCollider(TPScamSphere,camera)
camPUSHER.setHorizontal(0)
base.cTrav.addCollider(TPScamSphere,camPUSHER)

reachEvent = CollisionHandlerEvent()
reachEvent.addInPattern('%fn-in')
reachEvent.addOutPattern('%fn-out')
base.cTrav.addCollider(avatarReach,reachEvent)

# load objects
panda4=loader.loadModel('panda-model')
panda4.reparentTo(render)
panda4.setPos(8,8,0)
panda4.setScale(.003)
bc=panda4.getBounds().getCenter()
b3=panda4.getTightBounds()
dims=b3[1]-b3[0]
panda4.getParent().attachCollisionSphere( 'objSphere', bc[0],bc[1],bc[2],
.5*max(dims[0],dims[1],dims[2]),
BIT_OFF,BIT_STUFF).wrtReparentTo(panda4)

winXhalf=.5*base.win.getXSize()
winYhalf=.5*base.win.getYSize()

registerKey( ('w','s','a','d') )
DO=DirectObject()
DO.accept('escape',sys.exit)
DO.accept('reach-in',setTo1stCam)
DO.accept('reach-out',setTo3rdCam)
taskMgr.add(loop,'loop')

base.camLens.setNearFar(.1,100000)
base.camLens.setFov(80)
base.disableMouse()
#~ render.showCS()
# user may moves the pointer during loading, so put it to the rest position
base.win.movePointer(0, winXhalf, winYhalf)
run()

The camera is also pushed by the wall.
_________________
http://ynjh.panda3dprojects.com | http://ynjh.p3dp.com
Intel P4Prescott 2.8GHz HT | Elixir 1.5GB | ATI HD4670 1GB GDDR3

Display posts from previous:

	Panda3D Forum Index -> Scripting Issues	All times are GMT - 5 Hours
Page 1 of 1

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum