Hey everyone.
been a while, but im back now, with a new question.
(probably a silly one again)
here goes:
i am writing an rpg game. i used the roaming ralph code for walking on ground, but it wont detect any collision between the ground and the collisionray…
ignore all the dutch comments (it is a school project) 
here is the terrain code:
def worldgenerate(self):
tex = loader.loadTexture('colormap.png')
self.terrain = GeoMipTerrain("Terrain")
self.terrain.setHeightfield("heightmap.bmp")
#self.terrain.setAutoFlatten(GeoMipTerrain.AFMLight)
#self.terrain.setBruteforce(True)
self.terrainnode=self.terrain.getRoot()
self.terrainnode.setPos(-2000,-2000,-25)
self.terrainnode.setSz(300)
self.terrainnode.setCollideMask(BitMask32.bit(2))
self.terrainnode.reparentTo(render)
self.terrainnode.setTexture(tex)
self.terrain.setBlockSize(64)
self.terrain.setNear(128)
self.terrain.setFar(1024)
self.terrain.setFocalPoint(base.camera)
self.terrain.setMinLevel(3)
self.terrain.generate()works fine to me.
this creates the ray (stripped from ralph):
def setupcollisionHW(self):
self.cTrav = CollisionTraverser()
self.HPGroundRay = CollisionRay(0,0,1000,0,0,-1)
self.HPGroundCol = CollisionNode('HPRay')
self.HPGroundCol.addSolid(self.HPGroundRay)
self.HPGroundCol.setFromCollideMask(BitMask32.bit(2))
self.HPGroundCol.setIntoCollideMask(BitMask32.allOff())
self.HPGroundColNp = self.hoofdpersoon.attachNewNode(self.HPGroundCol)
self.HPGroundHandler = CollisionHandlerQueue()
self.cTrav.addCollider(self.HPGroundColNp, self.HPGroundHandler)
self.HPGroundColNp.show()
self.cTrav.showCollisions(render)and this checks the stuff and moves the character around (also stripped from ralph):
def move(self, task):
speed=10
if (self.controls["crawl"]):
speed=.5
elif (self.controls["run"]):
speed=1.5
if (self.controls["forward"]):
self.hoofdpersoon.setY(self.hoofdpersoon, speed*-15 * globalClock.getDt())
if (self.controls["backward"]):
self.hoofdpersoon.setY(self.hoofdpersoon, speed*15 * globalClock.getDt())
if (self.controls["left"]):
self.hoofdpersoon.setX(self.hoofdpersoon, speed*7 * globalClock.getDt())
if (self.controls["right"]):
self.hoofdpersoon.setX(self.hoofdpersoon, speed*-7 * globalClock.getDt())
#check voor collision tussen de self.HPGroundRay en de wereld
self.cTrav.traverse(render)
#zet alle gevonden collisions in een lijst, sorteer deze en vraag de eerste waarde op
self.entries = []
for i in range(self.HPGroundHandler.getNumEntries()):
entry = self.HPGroundHandler.getEntry(i)
self.entries.append(entry)
self.entries.sort(lambda x,y: cmp(y.getSurfacePoint(render).getZ(),
x.getSurfacePoint(render).getZ()))
#als de eerste gevonden collision met de wereld is (kan niet anders)
#zet de hoofdpersoon op de Z van het punt van collision
if (len(self.entries)>0) and (self.entries[0].getIntoNode() == self.terrain):
self.hoofdpersoon.setZ(self.entries[0].getSurfacePoint(render).getZ())
return task.conti set the ray to be shown, but it wont show up. (maybe because it is thought of as having 0 thickness)
all help appreciated.