Code for Avatar control 3rd Person Adventure Game Style

[Gladsomebeast]

Example code for controlling a user avatar. Console adventure game style.

Left mouse button rotates view, mouse wheel zooms.

WASD keys move avatar. Spacebar triggers jump. 'V' key triggers attack.


import viz
import viztask
import vizmat
viz.go()

#avatarRoot = viz.addGroup()
avatarRoot = viz.add('marker.wrl')
cameraLookAtNode = viz.addGroup(parent=avatarRoot, pos=[0, 1.5, 0])
avatar = viz.add('vcc_male.cfg', parent=avatarRoot)
viz.add('tut_ground.wrl')

def moveAvatar():
while True:
#get user input
newPos = vizmat.Vector()
newPos.set([0,0,0])
if viz.iskeydown('w'):
#walk forward
newPos = newPos + [0, 0, 1]
if viz.iskeydown('s'):
newPos = newPos + [0, 0, -1]
if viz.iskeydown('a'):
newPos = newPos + [-1, 0, 0]
if viz.iskeydown('d'):
newPos = newPos + [1, 0, 0]
isJumping = False
isAttacking = False
if viz.iskeydown(' '):
#jump
isJumping = True
elif viz.iskeydown('v'):
isAttacking = True

if isAttacking:
avatar.state(6)
yield viztask.waitTime( 1.5 )
if newPos.length() > 0 or isJumping:
if newPos.length() == 0:
#jumping but no direction key, use current heading
t = vizmat.Transform()
t.setTrans([0, 0, 1.8])
t.postEuler(avatar.getEuler()[0],0,0)
newPos = vizmat.Vector( t.getTrans() )
newYaw = vizmat.AngleToPoint(0, 0, newPos[0], newPos[2])
avatar.setEuler(newYaw, 0, 0)
if not isJumping:
#just walking
cameraEuler = viz.MainView.getEuler()
avatarRoot.setEuler(cameraEuler[0], 0, 0)
newPos = newPos * viz.getFrameElapsed()
avatarRoot.setPosition(newPos, viz.REL_LOCAL)
avatar.state(2)
else:
#jumping
avatar.state(7)
yield viztask.waitTime( avatar.getDuration(7)+.01 )
#compute jump direction
newJumpPos = vizmat.Transform()
newJumpPos.setTrans([0, 0, 1.8])
newJumpPos.postEuler(avatar.getEuler(viz.ABS_GLOBA L)[0], 0, 0)
avatarRoot.setPosition(newJumpPos.getTrans(), viz.REL_GLOBAL)



if not (viz.iskeydown(' ') or viz.iskeydown('w') or viz.iskeydown('s') or viz.iskeydown('a') or viz.iskeydown('d') ):
avatar.state(1)

yield None

viztask.schedule(moveAvatar())

import vizcam
camera = vizcam.PivotNavigate()
camera.setDistance(5)

def moveCamera():
while True:
lookAtPos = avatar.getBone('Bip01 Pelvis').getPosition(viz.ABS_GLOBAL)
lookAtPos[1] = lookAtPos[1] + .5
camera.setCenter(lookAtPos)
camera.updateCenter()
yield None

viztask.schedule(moveCamera())