create planes.go

fightstick/planes.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"github.com/deadsy/sdfx/sdf"
+	v2 "github.com/deadsy/sdfx/vec/v2"
+)
+
+type planes map[string]sdf.SDF2
+
+func (p planes) add(p2 planes) {
+	for k, v := range p2 {
+		p[k] = v
+	}
+}
+
+func splitPlane(name string, plane sdf.SDF2) map[string]sdf.SDF2 {
+	planes := make(map[string]sdf.SDF2)
+	/*	original := topPlane()
+		x, y := original.BoundingBox().Max.X*2, original.BoundingBox().Max.Y*2
+		cutout := sdf.Box2D(sdf.V2{X: x, Y: y}, 0)
+		cOLeft := sdf.Transform2D(cutout, sdf.Translate2d(sdf.V2{X: x / 2, Y: 0}))
+		cORight := sdf.Transform2D(cutout, sdf.Translate2d(sdf.V2{X: -x / 2, Y: 0}))
+		planes["left"] = sdf.Difference2D(original, cOLeft)
+		planes["right"] = sdf.Difference2D(original, cORight)*/
+	planes[name+" "+"right"] = sdf.Cut2D(plane, v2.Vec{X: 0, Y: 0}, v2.Vec{X: 0, Y: 1})
+	planes[name+" "+"left"] = sdf.Transform2D(sdf.Cut2D(sdf.Transform2D(plane, sdf.MirrorY()), v2.Vec{X: 0, Y: 0}, v2.Vec{X: 0, Y: 1}), sdf.MirrorY())
+	return planes
+}