101 lines
2.4 KiB
Go
101 lines
2.4 KiB
Go
package d2math
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import "fmt"
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// RangedNumber is a number with a min and max range
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type RangedNumber struct {
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min int
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max int
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}
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// Min returns the min value, swapping min/max if not ordered
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func (rn *RangedNumber) Min() int {
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if rn.min > rn.max {
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rn.Set(rn.max, rn.min)
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}
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return rn.min
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}
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// Max returns the max value, swapping min/max if not ordered
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func (rn *RangedNumber) Max() int {
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if rn.min > rn.max {
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rn.Set(rn.max, rn.min)
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}
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return rn.max
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}
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// Set sets the min and max values, ordering the arguments if necessary
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func (rn *RangedNumber) Set(min, max int) *RangedNumber {
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rn.SetMin(min)
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rn.SetMax(max)
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return rn
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}
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// SetMin sets the minimum value
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func (rn *RangedNumber) SetMin(min int) *RangedNumber {
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rn.min = min
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if rn.min > rn.max {
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rn.min = rn.max
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rn.max = min
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}
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return rn
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}
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// SetMax sets the maximum value
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func (rn *RangedNumber) SetMax(max int) *RangedNumber {
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rn.max = max
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if rn.min > rn.max {
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rn.max = rn.min
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rn.min = max
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}
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return rn
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}
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// Clone creates a new copy of a ranged number, with the same min/max
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func (rn RangedNumber) Clone() *RangedNumber {
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return &rn
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}
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// Copy copies the min/max values of the given ranged number
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func (rn *RangedNumber) Copy(other *RangedNumber) *RangedNumber {
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return rn.Set(other.min, other.max)
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}
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// Equals checks equality with the given ranged number
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func (rn *RangedNumber) Equals(other *RangedNumber) bool {
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return rn.min == other.min && rn.max == other.max
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}
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// Add adds the given ranged number to this one, returning this one
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func (rn *RangedNumber) Add(other *RangedNumber) *RangedNumber {
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return rn.Set(rn.min+other.min, rn.max+other.max)
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}
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// Sub subtracts the given ranged number from this one, returning this one
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func (rn *RangedNumber) Sub(other *RangedNumber) *RangedNumber {
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return rn.Set(rn.min-other.min, rn.max-other.max)
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}
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// Mul multiplies this ranged number by the given ranged number, returning this one
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func (rn *RangedNumber) Mul(other *RangedNumber) *RangedNumber {
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return rn.Set(rn.min*other.min, rn.max*other.max)
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}
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// Div divides this ranged number by the given ranged number, returning this one
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func (rn *RangedNumber) Div(other *RangedNumber) *RangedNumber {
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return rn.Set(rn.min/other.min, rn.max/other.max)
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}
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func (rn *RangedNumber) String() string {
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if rn.Min() == rn.Max() { // ensures ordering
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return fmt.Sprintf("%d", rn.min)
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}
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return fmt.Sprintf("%d to %d", rn.min, rn.max)
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}
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