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_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())