up3

server/block/sea_pickle.go

@@ -0,0 +1,183 @@
+package block
+
+import (
+	"math"
+	"math/rand/v2"
+
+	"github.com/df-mc/dragonfly/server/block/cube"
+	"github.com/df-mc/dragonfly/server/item"
+	"github.com/df-mc/dragonfly/server/world"
+	"github.com/go-gl/mathgl/mgl64"
+)
+
+// SeaPickle is a small stationary underwater block that emits light, and is typically found in colonies of up to
+// four sea pickles.
+type SeaPickle struct {
+	empty
+	transparent
+	sourceWaterDisplacer
+
+	// AdditionalCount is the amount of additional sea pickles clustered together.
+	AdditionalCount int
+	// Dead is whether the sea pickles are not alive. Sea pickles are only considered alive when inside of water. While
+	// alive, sea pickles emit light & can be grown with bone meal.
+	Dead bool
+}
+
+// canSurvive ...
+func (SeaPickle) canSurvive(pos cube.Pos, tx *world.Tx) bool {
+	below := tx.Block(pos.Side(cube.FaceDown))
+	if !below.Model().FaceSolid(pos.Side(cube.FaceDown), cube.FaceUp, tx) {
+		return false
+	}
+	if liquid, ok := tx.Liquid(pos); ok {
+		if _, ok = liquid.(Water); !ok || liquid.LiquidDepth() != 8 {
+			return false
+		}
+	}
+	if emitter, ok := below.(LightDiffuser); ok && emitter.LightDiffusionLevel() != 15 {
+		return false
+	}
+	return true
+}
+
+// BoneMeal ...
+func (s SeaPickle) BoneMeal(pos cube.Pos, tx *world.Tx) item.BoneMealResult {
+	if s.Dead {
+		return item.BoneMealResultNone
+	}
+	if coral, ok := tx.Block(pos.Side(cube.FaceDown)).(CoralBlock); !ok || coral.Dead {
+		return item.BoneMealResultNone
+	}
+
+	if s.AdditionalCount != 3 {
+		s.AdditionalCount = 3
+		tx.SetBlock(pos, s, nil)
+	}
+
+	for x := -2; x <= 2; x++ {
+		distance := -int(math.Abs(float64(x))) + 2
+		for z := -distance; z <= distance; z++ {
+			for y := -1; y < 1; y++ {
+				if (x == 0 && y == 0 && z == 0) || rand.IntN(6) != 0 {
+					continue
+				}
+				newPos := pos.Add(cube.Pos{x, y, z})
+
+				if _, ok := tx.Block(newPos).(Water); !ok {
+					continue
+				}
+				if coral, ok := tx.Block(newPos.Side(cube.FaceDown)).(CoralBlock); !ok || coral.Dead {
+					continue
+				}
+				tx.SetBlock(newPos, SeaPickle{AdditionalCount: rand.IntN(3) + 1}, nil)
+			}
+		}
+	}
+
+	return item.BoneMealResultSmall
+}
+
+// UseOnBlock ...
+func (s SeaPickle) UseOnBlock(pos cube.Pos, face cube.Face, _ mgl64.Vec3, tx *world.Tx, user item.User, ctx *item.UseContext) bool {
+	if existing, ok := tx.Block(pos).(SeaPickle); ok {
+		if existing.AdditionalCount >= 3 {
+			return false
+		}
+
+		existing.AdditionalCount++
+		place(tx, pos, existing, user, ctx)
+		return placed(ctx)
+	}
+
+	pos, _, used := firstReplaceable(tx, pos, face, s)
+	if !used {
+		return false
+	}
+	if !s.canSurvive(pos, tx) {
+		return false
+	}
+
+	s.Dead = true
+	if liquid, ok := tx.Liquid(pos); ok {
+		_, ok = liquid.(Water)
+		s.Dead = !ok
+	}
+
+	place(tx, pos, s, user, ctx)
+	return placed(ctx)
+}
+
+// NeighbourUpdateTick ...
+func (s SeaPickle) NeighbourUpdateTick(pos, _ cube.Pos, tx *world.Tx) {
+	if !s.canSurvive(pos, tx) {
+		breakBlock(s, pos, tx)
+		return
+	}
+
+	alive := false
+	if liquid, ok := tx.Liquid(pos); ok {
+		_, alive = liquid.(Water)
+	}
+	if s.Dead == alive {
+		s.Dead = !alive
+		tx.SetBlock(pos, s, nil)
+	}
+}
+
+// HasLiquidDrops ...
+func (SeaPickle) HasLiquidDrops() bool {
+	return true
+}
+
+// SideClosed ...
+func (SeaPickle) SideClosed(cube.Pos, cube.Pos, *world.Tx) bool {
+	return false
+}
+
+// LightEmissionLevel ...
+func (s SeaPickle) LightEmissionLevel() uint8 {
+	if s.Dead {
+		return 0
+	}
+	return uint8(6 + s.AdditionalCount*3)
+}
+
+// BreakInfo ...
+func (s SeaPickle) BreakInfo() BreakInfo {
+	return newBreakInfo(0, alwaysHarvestable, nothingEffective, simpleDrops(item.NewStack(s, s.AdditionalCount+1)))
+}
+
+// FlammabilityInfo ...
+func (SeaPickle) FlammabilityInfo() FlammabilityInfo {
+	return newFlammabilityInfo(15, 100, true)
+}
+
+// SmeltInfo ...
+func (SeaPickle) SmeltInfo() item.SmeltInfo {
+	return newSmeltInfo(item.NewStack(item.Dye{Colour: item.ColourLime()}, 1), 0.1)
+}
+
+// CompostChance ...
+func (SeaPickle) CompostChance() float64 {
+	return 0.65
+}
+
+// EncodeItem ...
+func (SeaPickle) EncodeItem() (name string, meta int16) {
+	return "minecraft:sea_pickle", 0
+}
+
+// EncodeBlock ...
+func (s SeaPickle) EncodeBlock() (string, map[string]any) {
+	return "minecraft:sea_pickle", map[string]any{"cluster_count": int32(s.AdditionalCount), "dead_bit": s.Dead}
+}
+
+// allSeaPickles ...
+func allSeaPickles() (b []world.Block) {
+	for i := 0; i <= 3; i++ {
+		b = append(b, SeaPickle{AdditionalCount: i})
+		b = append(b, SeaPickle{AdditionalCount: i, Dead: true})
+	}
+	return
+}