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Code for Avatar control 3rd Person Adventure Game Style
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. Code:
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_GLOBAL)[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())
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Paul Elliott WorldViz LLC |
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