97 lines
2.5 KiB
Go
97 lines
2.5 KiB
Go
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package block
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import (
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"github.com/df-mc/dragonfly/server/block/cube"
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"github.com/df-mc/dragonfly/server/world"
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)
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// Crop is an interface for all crops that are grown on farmland. A crop has a random chance to grow during random ticks.
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type Crop interface {
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// GrowthStage returns the crop's current stage of growth. The max value is 7.
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GrowthStage() int
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// SameCrop checks if two crops are of the same type.
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SameCrop(c Crop) bool
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}
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// crop is a base for crop plants.
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type crop struct {
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transparent
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empty
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// Growth is the current stage of growth. The max value is 7.
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Growth int
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}
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// NeighbourUpdateTick ...
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func (c crop) NeighbourUpdateTick(pos, _ cube.Pos, tx *world.Tx) {
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if _, ok := tx.Block(pos.Side(cube.FaceDown)).(Farmland); !ok {
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breakBlock(tx.Block(pos), pos, tx)
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}
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}
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// HasLiquidDrops ...
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func (c crop) HasLiquidDrops() bool {
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return true
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}
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// GrowthStage returns the current stage of growth.
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func (c crop) GrowthStage() int {
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return c.Growth
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}
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// CalculateGrowthChance calculates the chance the crop will grow during a random tick.
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func (c crop) CalculateGrowthChance(pos cube.Pos, tx *world.Tx) float64 {
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points := 0.0
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block := tx.Block(pos)
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under := pos.Side(cube.FaceDown)
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for x := -1; x <= 1; x++ {
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for z := -1; z <= 1; z++ {
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block := tx.Block(under.Add(cube.Pos{x, 0, z}))
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if farmland, ok := block.(Farmland); ok {
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farmlandPoints := 0.0
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if farmland.Hydration > 0 {
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farmlandPoints = 4
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} else {
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farmlandPoints = 2
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}
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if x != 0 || z != 0 {
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farmlandPoints = (farmlandPoints - 1) / 4
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}
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points += farmlandPoints
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}
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}
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}
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north := pos.Side(cube.FaceNorth)
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south := pos.Side(cube.FaceSouth)
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northSouth := sameCrop(block, tx.Block(north)) || sameCrop(block, tx.Block(south))
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westEast := sameCrop(block, tx.Block(pos.Side(cube.FaceWest))) || sameCrop(block, tx.Block(pos.Side(cube.FaceEast)))
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if northSouth && westEast {
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points /= 2
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} else {
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diagonal := sameCrop(block, tx.Block(north.Side(cube.FaceWest))) ||
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sameCrop(block, tx.Block(north.Side(cube.FaceEast))) ||
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sameCrop(block, tx.Block(south.Side(cube.FaceWest))) ||
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sameCrop(block, tx.Block(south.Side(cube.FaceEast)))
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if diagonal {
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points /= 2
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}
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}
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chance := 1 / (25/points + 1)
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return chance
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}
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// sameCrop checks if both blocks are crops and that they are the same type.
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func sameCrop(blockA, blockB world.Block) bool {
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if a, ok := blockA.(Crop); ok {
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if b, ok := blockB.(Crop); ok {
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return a.SameCrop(b)
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}
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}
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return false
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}
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