ml
45 lines
1.4 KiB
Go
45 lines
1.4 KiB
Go
package object
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// Descriptors describes a set of object classes.
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type Descriptors []ClassDescriptor
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// ClassDescriptor describes a single object class.
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type ClassDescriptor struct {
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// GenericDataSize specifies the length, in bytes, of one generic type entry.
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GenericDataSize int
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// Subclasses contains descriptions of the subclasses of this class.
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// The index into the array is the subclass ID.
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Subclasses []SubclassDescriptor
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}
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// TotalDataSize returns the total length the class requires.
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func (desc ClassDescriptor) TotalDataSize() int {
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total := 0
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for _, subclass := range desc.Subclasses {
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total += (desc.GenericDataSize * subclass.TypeCount) + subclass.TotalDataSize()
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}
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return total
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}
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// TotalTypeCount returns the total number of types in this class.
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func (desc ClassDescriptor) TotalTypeCount() int {
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total := 0
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for _, subclass := range desc.Subclasses {
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total += subclass.TypeCount
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}
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return total
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}
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// SubclassDescriptor describes one subclass.
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type SubclassDescriptor struct {
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// TypeCount specifies how many types exist in this subclass.
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TypeCount int
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// SpecificDataSize specifies the length, in bytes, of one specific type entry.
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SpecificDataSize int
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}
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// TotalDataSize returns the total length, in bytes, the subclass requires in the properties file.
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func (desc SubclassDescriptor) TotalDataSize() int {
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return (desc.SpecificDataSize + CommonPropertiesSize) * desc.TypeCount
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}
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