82 lines
2.1 KiB
Lua
82 lines
2.1 KiB
Lua
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-- A camera controller so I can pan and move around the scene.
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-- Enable/Disable using keys
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local camerafly = {}
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--------------------------------------------------------------------------------
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local function newcamera()
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local camerafly = {
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lookvec = vmath.vector3(),
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pos = vmath.vector3(),
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movevec = vmath.vector3(),
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xangle = 0.0,
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yangle = 0.0,
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}
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return camerafly
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end
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--------------------------------------------------------------------------------
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-- A simple handler, can be easily replaced
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local function defaulthandler( self, delta )
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local pitch = -self.xangle
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local yaw = self.yangle
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xzLen = math.cos(yaw)
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self.lookvec.z = -xzLen * math.cos(pitch)
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self.lookvec.y = math.sin(yaw)
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self.lookvec.x = xzLen * math.sin(-pitch)
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-- do some default movement stuff
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self.movevec = vmath.vector3( self.lookvec.x * self.speed * delta,
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self.lookvec.y * self.speed * delta,
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self.lookvec.z * self.speed * delta)
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self.pos = vmath.vector3(self.pos.x + self.movevec.x,
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self.pos.y + self.movevec.y,
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self.pos.z + self.movevec.z)
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local xrot = vmath.quat_rotation_y(pitch)
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local yrot = vmath.quat_rotation_x(yaw)
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camerafly.rot = xrot * yrot
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go.set_rotation( self.rot, self.cameraobj )
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go.set_position( self.pos, self.cameraobj )
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end
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--------------------------------------------------------------------------------
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camerafly.init = function( cameraobj, speed, handler )
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local newcam = newcamera()
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newcam.cameraobj = cameraobj
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newcam.speed = speed or 0.0
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newcam.handler = handler or defaulthandler
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newcam.pos = go.get_position(cameraobj)
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newcam.rot = go.get_rotation(cameraobj)
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newcam.enabled = true -- enabled by default
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newcam.update = function( self, delta )
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if(newcam.enabled ~= true) then return end
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if(newcam.handler) then newcam.handler( newcam, delta ) end
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end
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return newcam
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end
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--------------------------------------------------------------------------------
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--------------------------------------------------------------------------------
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return camerafly
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--------------------------------------------------------------------------------
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