up3

server/entity/egg.go

@@ -0,0 +1,40 @@
+package entity
+
+import (
+	"github.com/df-mc/dragonfly/server/block/cube"
+	"github.com/df-mc/dragonfly/server/world"
+	"github.com/df-mc/dragonfly/server/world/particle"
+)
+
+// NewEgg creates an Egg entity. Egg is as a throwable entity that can be used
+// to spawn chicks.
+func NewEgg(opts world.EntitySpawnOpts, owner world.Entity) *world.EntityHandle {
+	conf := eggConf
+	conf.Owner = owner.H()
+	return opts.New(EggType, conf)
+}
+
+// TODO: Spawn chicken(e) 12.5% of the time.
+var eggConf = ProjectileBehaviourConfig{
+	Gravity:       0.03,
+	Drag:          0.01,
+	Particle:      particle.EggSmash{},
+	ParticleCount: 6,
+}
+
+// EggType is a world.EntityType implementation for Egg.
+var EggType eggType
+
+type eggType struct{}
+
+func (t eggType) Open(tx *world.Tx, handle *world.EntityHandle, data *world.EntityData) world.Entity {
+	return &Ent{tx: tx, handle: handle, data: data}
+}
+
+func (eggType) EncodeEntity() string { return "minecraft:egg" }
+func (eggType) BBox(world.Entity) cube.BBox {
+	return cube.Box(-0.125, 0, -0.125, 0.125, 0.25, 0.125)
+}
+
+func (eggType) DecodeNBT(_ map[string]any, data *world.EntityData) { data.Data = eggConf.New() }
+func (eggType) EncodeNBT(_ *world.EntityData) map[string]any       { return nil }