1 files changed, 46 insertions, 0 deletions
diff --git a/internal/slider/evaluation.go b/internal/slider/evaluation.go
new file mode 100644
index 0000000..363efe7
--- /dev/null
+++ b/internal/slider/evaluation.go
@@ -0,0 +1,46 @@
+package slider
+
+func (m Model) Val() int { return m.current }
+
+func (m *Model) Set(v int) {
+	m.current = v
+	m.fixRange()
+}
+
+func (m *Model) Inc(v int) {
+	m.current += v
+	m.fixRange()
+}
+
+func (m *Model) Dec(v int) {
+	m.current -= v
+	m.fixRange()
+}
+
+func (m *Model) Pcnt() float64 {
+	return float64(m.current) / float64(m.max)
+}
+
+func (m *Model) SetPcnt(p float64) {
+	m.current = int(float64(m.max) * p)
+	m.fixRange()
+}
+
+func (m *Model) IncPcnt(p float64) {
+	m.current += int(float64(m.max) * p)
+	m.fixRange()
+}
+
+func (m *Model) DecPcnt(p float64) {
+	m.current -= int(float64(m.max) * p)
+	m.fixRange()
+}
+
+func (m *Model) fixRange() {
+	if m.current > m.max {
+		m.current = m.max
+	}
+	if m.current < 0 {
+		m.current = 0
+	}
+}