up3

server/block/model/door.go

@@ -0,0 +1,34 @@
+package model
+
+import (
+	"github.com/df-mc/dragonfly/server/block/cube"
+	"github.com/df-mc/dragonfly/server/world"
+)
+
+// Door is a model used for doors. It has no solid faces and a bounding box that changes depending on
+// the direction of the door, whether it is open, and the side of its hinge.
+type Door struct {
+	// Facing is the direction that the door is facing when closed.
+	Facing cube.Direction
+	// Open specifies if the Door is open. The direction it opens towards depends on the Right field.
+	Open bool
+	// Right specifies the attachment side of the door and, with that, the direction it opens in.
+	Right bool
+}
+
+// BBox returns a physics.BBox that depends on if the Door is open, what direction it is facing and whether it is
+// attached to the right/left side of a block.
+func (d Door) BBox(cube.Pos, world.BlockSource) []cube.BBox {
+	if d.Open {
+		if d.Right {
+			return []cube.BBox{full.ExtendTowards(d.Facing.RotateLeft().Face(), -0.8125)}
+		}
+		return []cube.BBox{full.ExtendTowards(d.Facing.RotateRight().Face(), -0.8125)}
+	}
+	return []cube.BBox{full.ExtendTowards(d.Facing.Face(), -0.8125)}
+}
+
+// FaceSolid always returns false.
+func (d Door) FaceSolid(cube.Pos, cube.Face, world.BlockSource) bool {
+	return false
+}