class RTanque::NormalizedAttr::AttrContainer
Public Class Methods
new(range, max_delta = MAX_DELTA)
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# File lib/rtanque/normalized_attr.rb, line 20 def initialize(range, max_delta = MAX_DELTA) @range = range @max_delta = max_delta end
Public Instance Methods
delta(current_value, new_value)
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# File lib/rtanque/normalized_attr.rb, line 51 def delta(current_value, new_value) if current_value # Heading responds to delta current_value.respond_to?(:delta) ? current_value.delta(new_value) : (new_value - current_value) else 0 end end
enforce_delta(attached_instance, current_value, new_value)
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# File lib/rtanque/normalized_attr.rb, line 41 def enforce_delta(attached_instance, current_value, new_value) current_delta = self.delta(current_value, new_value) current_max_delta = self.max_delta(attached_instance) if current_delta.abs > current_max_delta current_delta > 0 ? current_value + current_max_delta : current_value - current_max_delta else new_value end end
enforce_range(value)
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# File lib/rtanque/normalized_attr.rb, line 60 def enforce_range(value) if @range.include?(value) value else value > self.max ? self.max : self.min end end
max()
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# File lib/rtanque/normalized_attr.rb, line 29 def max @range.last end
max_delta(attached_instance)
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# File lib/rtanque/normalized_attr.rb, line 37 def max_delta(attached_instance) @max_delta.respond_to?(:call) ? @max_delta.call(attached_instance) : @max_delta end
min()
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# File lib/rtanque/normalized_attr.rb, line 25 def min @range.first end
normalize(attached_instance, current_value, new_value)
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# File lib/rtanque/normalized_attr.rb, line 33 def normalize(attached_instance, current_value, new_value) self.enforce_range(self.enforce_delta(attached_instance, current_value, new_value)) end