day22, part1, struggle

day22/printingSpace.go

@@ -0,0 +1,38 @@
+package day22
+
+import (
+	"math"
+
+	"github.com/tidwall/pinhole"
+)
+
+func TestPinhole() {
+	p := pinhole.New()
+	p.DrawCube(-0.3, -0.3, -0.3, 0.3, 0.3, 0.3)
+	p.Rotate(math.Pi/3, math.Pi/2, 0)
+	p.SavePNG("cube.png", 500, 500, nil)
+}
+
+func PrintSpace(s Space, filename string) {
+	// pinhole is from -1 to 1. let's use from 0 to 1.
+	// so coord should be divided by max height, and let's hope that they are not too wide
+
+	rotation := []float64{math.Pi/3, math.Pi/6, 0}
+
+	p := pinhole.New()
+
+	p.DrawRect(-1, -1, 1, 1, 0)
+
+	for _, zLevel := range s.SettledOnZ {
+		for _, block := range zLevel {
+			p.DrawCube(float64(block.XMin) / float64(s.MaxZ),
+				float64(block.YMin) / float64(s.MaxZ),
+				float64(block.Z) / float64(s.MaxZ),
+				float64(block.XMax + 1) / float64(s.MaxZ),
+				float64(block.YMax + 1) / float64(s.MaxZ),
+				float64(block.Z + block.ZHeight + 1) / float64(s.MaxZ))
+		}
+	}
+	p.Rotate(rotation[0], rotation[1], rotation[2])
+	p.SavePNG(filename, 1920, 1080, nil)
+}