up3

server/block/double_tall_grass.go

@@ -0,0 +1,87 @@
+package block
+
+import (
+	"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"
+)
+
+// DoubleTallGrass is a two-block high variety of grass.
+type DoubleTallGrass struct {
+	transparent
+	replaceable
+	empty
+
+	// UpperPart is set if the plant is the upper part.
+	UpperPart bool
+	// Type is the type of double tall grass.
+	Type DoubleTallGrassType
+}
+
+// HasLiquidDrops ...
+func (d DoubleTallGrass) HasLiquidDrops() bool {
+	return true
+}
+
+// NeighbourUpdateTick ...
+func (d DoubleTallGrass) NeighbourUpdateTick(pos, _ cube.Pos, tx *world.Tx) {
+	if d.UpperPart {
+		if bottom, ok := tx.Block(pos.Side(cube.FaceDown)).(DoubleTallGrass); !ok || bottom.Type != d.Type || bottom.UpperPart {
+			breakBlockNoDrops(d, pos, tx)
+		}
+	} else if upper, ok := tx.Block(pos.Side(cube.FaceUp)).(DoubleTallGrass); !ok || upper.Type != d.Type || !upper.UpperPart {
+		breakBlockNoDrops(d, pos, tx)
+	} else if !supportsVegetation(d, tx.Block(pos.Side(cube.FaceDown))) {
+		breakBlock(d, pos, tx)
+	}
+}
+
+// UseOnBlock ...
+func (d DoubleTallGrass) UseOnBlock(pos cube.Pos, face cube.Face, _ mgl64.Vec3, tx *world.Tx, user item.User, ctx *item.UseContext) bool {
+	pos, _, used := firstReplaceable(tx, pos, face, d)
+	if !used || !replaceableWith(tx, pos.Side(cube.FaceUp), d) || !supportsVegetation(d, tx.Block(pos.Side(cube.FaceDown))) {
+		return false
+	}
+
+	place(tx, pos, d, user, ctx)
+	place(tx, pos.Side(cube.FaceUp), DoubleTallGrass{Type: d.Type, UpperPart: true}, user, ctx)
+	return placed(ctx)
+}
+
+// FlammabilityInfo ...
+func (d DoubleTallGrass) FlammabilityInfo() FlammabilityInfo {
+	return newFlammabilityInfo(60, 100, true)
+}
+
+// BreakInfo ...
+func (d DoubleTallGrass) BreakInfo() BreakInfo {
+	return newBreakInfo(0, alwaysHarvestable, nothingEffective, grassDrops(d))
+}
+
+// CompostChance ...
+func (d DoubleTallGrass) CompostChance() float64 {
+	if d.Type == FernDoubleTallGrass() {
+		return 0.65
+	}
+	return 0.5
+}
+
+// EncodeItem ...
+func (d DoubleTallGrass) EncodeItem() (name string, meta int16) {
+	return "minecraft:" + d.Type.String(), 0
+}
+
+// EncodeBlock ...
+func (d DoubleTallGrass) EncodeBlock() (string, map[string]any) {
+	return "minecraft:" + d.Type.String(), map[string]any{"upper_block_bit": d.UpperPart}
+}
+
+// allDoubleTallGrass ...
+func allDoubleTallGrass() (b []world.Block) {
+	for _, g := range DoubleTallGrassTypes() {
+		b = append(b, DoubleTallGrass{Type: g})
+		b = append(b, DoubleTallGrass{Type: g, UpperPart: true})
+	}
+	return
+}