add player package with key client-side player functionality, update protocol codecs, and refactor metadata definitions and slot usage

pkg/bot/world.go

@@ -0,0 +1,35 @@
+package bot
+
+import (
+	"git.konjactw.dev/patyhank/minego/pkg/protocol"
+	"git.konjactw.dev/patyhank/minego/pkg/protocol/metadata"
+	"git.konjactw.dev/patyhank/minego/pkg/protocol/slot"
+	"github.com/Tnze/go-mc/data/entity"
+	"github.com/Tnze/go-mc/level/block"
+	"github.com/go-gl/mathgl/mgl64"
+	"github.com/google/uuid"
+)
+
+type World interface {
+	GetBlock(pos protocol.Position) (block.Block, error)
+	SetBlock(pos protocol.Position, b block.Block) error
+
+	GetNearbyBlocks(pos protocol.Position, radius int32) ([]block.Block, error)
+	FindNearbyBlock(pos protocol.Position, radius int32, blk block.Block) (protocol.Position, error)
+
+	Entities() []Entity
+	GetEntity(id int32) Entity
+	GetNearbyEntities(radius int32) []Entity
+	GetEntitiesByType(entityType entity.ID) []Entity
+}
+
+type Entity interface {
+	ID() int32
+	UUID() uuid.UUID
+	Type() entity.ID
+	Position() mgl64.Vec3
+	Rotation() mgl64.Vec2
+
+	Metadata() map[uint8]metadata.Metadata
+	Equipment() map[int8]slot.Slot
+}