world/world.go: Updated and cleaned up documentation.

Also removed/resolved some TODOs.

server/block/stairs_type.go

@@ -7,7 +7,6 @@ import (
 // encodeStairsBlock encodes the provided block in to an identifier and meta value that can be used to encode the stairs.
 func encodeStairsBlock(block world.Block) string {
 	switch block := block.(type) {
-	// TODO: Copper
 	case Andesite:
 		if block.Polished {
 			return "polished_andesite"

server/player/player.go

@@ -203,7 +203,6 @@ func (p *Player) Locale() language.Tag {
 // handlers of the Handler passed.
 // Handle sets the player's Handler to NopHandler if nil is passed.
 func (p *Player) Handle(h Handler) {
-	// TODO: Decide where handlers go!
 	if h == nil {
 		h = NopHandler{}
 	}
@@ -2954,7 +2953,6 @@ func (p *Player) useContext() *item.UseContext {
 
 // Handler returns the Handler of the player.
 func (p *Player) Handler() Handler {
-	// TODO: Figure out handlers.
 	return p.h
 }
 

server/session/handler_container_close.go

@@ -22,7 +22,7 @@ func (h *ContainerCloseHandler) Handle(p packet.Packet, s *Session, tx *world.Tx
 	case byte(s.openedWindowID.Load()):
 		s.closeCurrentContainer(tx)
 	case 0xff:
-		// TODO: H closing the crafting grid.
+		// TODO: Handle closing the crafting grid.
 	default:
 		return fmt.Errorf("unexpected close request for unopened container %v", pk.WindowID)
 	}

server/world/block_source.go

@@ -7,3 +7,8 @@ type BlockSource interface {
 	// Block returns the block at the given position in the block source.
 	Block(cube.Pos) Block
 }
+
+// worldSource is a wrapper around a World that implements BlockSource.
+type worldSource struct{ w *World }
+
+func (w worldSource) Block(pos cube.Pos) Block { return w.w.block(pos) }