up3

server/entity/falling_block.go

@@ -0,0 +1,45 @@
+package entity
+
+import (
+	"github.com/df-mc/dragonfly/server/block/cube"
+	"github.com/df-mc/dragonfly/server/internal/nbtconv"
+	"github.com/df-mc/dragonfly/server/world"
+)
+
+// NewFallingBlock creates a new FallingBlock entity.
+func NewFallingBlock(opts world.EntitySpawnOpts, block world.Block) *world.EntityHandle {
+	conf := fallingBlockConf
+	conf.Block = block
+	return opts.New(FallingBlockType, conf)
+}
+
+var fallingBlockConf = FallingBlockBehaviourConfig{
+	Gravity: 0.04,
+	Drag:    0.02,
+}
+
+// FallingBlockType is a world.EntityType implementation for FallingBlock.
+var FallingBlockType fallingBlockType
+
+type fallingBlockType struct{}
+
+func (t fallingBlockType) Open(tx *world.Tx, handle *world.EntityHandle, data *world.EntityData) world.Entity {
+	return &Ent{tx: tx, handle: handle, data: data}
+}
+func (fallingBlockType) EncodeEntity() string   { return "minecraft:falling_block" }
+func (fallingBlockType) NetworkOffset() float64 { return 0.49 }
+func (fallingBlockType) BBox(world.Entity) cube.BBox {
+	return cube.Box(-0.49, 0, -0.49, 0.49, 0.98, 0.49)
+}
+
+func (fallingBlockType) DecodeNBT(m map[string]any, data *world.EntityData) {
+	conf := fallingBlockConf
+	conf.Block = nbtconv.Block(m, "FallingBlock")
+	conf.DistanceFallen = nbtconv.Float64(m, "FallDistance")
+	data.Data = conf.New()
+}
+
+func (fallingBlockType) EncodeNBT(data *world.EntityData) map[string]any {
+	b := data.Data.(*FallingBlockBehaviour)
+	return map[string]any{"FallDistance": b.passive.fallDistance, "FallingBlock": nbtconv.WriteBlock(b.block)}
+}