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2026-07-09 08:33:57 +08:00
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
}