54 lines
1.1 KiB
Lua
54 lines
1.1 KiB
Lua
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local math_pi = math.pi
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local math_sin = math.sin
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local math_cos = math.cos
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-- localize vector functions
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local vector_new = vector.new
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local vector_length = vector.length
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-- move mob in facing direction
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--this has been modified to be internal
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--internal = lua (self.yaw)
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--engine = c++ (self.object:get_yaw())
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mobs.set_velocity = function(self, v)
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local yaw = (self.yaw or 0)
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local current_velocity = self.object:get_velocity()
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local goal_velocity = {
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x = (math_sin(yaw) * -v),
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y = 0,
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z = (math_cos(yaw) * v),
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}
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local new_velocity_addition = vector.subtract(goal_velocity,current_velocity)
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if vector_length(new_velocity_addition) > vector_length(goal_velocity) then
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vector.multiply(new_velocity_addition, (vector_length(goal_velocity) / vector_length(new_velocity_addition)))
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end
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new_velocity_addition.y = 0
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--smooths out mobs a bit
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if vector_length(new_velocity_addition) >= 0.0001 then
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self.object:add_velocity(new_velocity_addition)
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end
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end
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-- calculate mob velocity
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mobs.get_velocity = function(self)
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local v = self.object:get_velocity()
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v.y = 0
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if v then
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return vector_length(v)
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end
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return 0
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end
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