automated snapshot

blinds.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	sg "github.com/d2fn/sumi/internal/graphics"
+	rl "github.com/gen2brain/raylib-go/raylib"
+)
+
+type BlindsLayer struct {
+	Field Field
+	Dirty bool
+}
+
+func NewBlindsLayer(field Field) *BlindsLayer {
+	return &BlindsLayer {
+		Field: field,
+		Dirty: true,
+	}
+}
+
+func (l *BlindsLayer) Draw(env *Env, g *sg.Graphics) {
+
+	rowHeight := float32(10.0)
+	rows := int32(g.Bounds.Height / rowHeight)
+
+	g.Clear()
+
+	c := rl.White
+	c.A = 100
+
+	g.SetStrokeColor(c)
+	g.SetStrokeWeight(1.0)
+	y := float32(10.0)
+	for range rows {
+		for x := 10; x < int(g.Width()) - 10; x++ {
+			fieldValue := l.Field.Get(float32(x), float32(y))
+			strokeHeight := rl.Remap(fieldValue, 0.0, 1.0, 0.0, rowHeight * 1.3)
+			a := sg.Point { X: float32(x), Y: float32(y) - strokeHeight / 2.0 }
+			b := sg.Point { X: float32(x), Y: float32(y) + strokeHeight / 2.0 }
+			g.DrawLine(a, b)
+		}
+		y += rowHeight 
+	}
+
+	l.Dirty = false
+}
+
+func (l *BlindsLayer) Update(env *Env, g *sg.Graphics) {
+
+}
+
+func (l *BlindsLayer) IsDirty() bool {
+	return l.Dirty
+}
+