60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
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package entity
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import (
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"github.com/df-mc/dragonfly/server/block"
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"github.com/df-mc/dragonfly/server/block/cube"
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"github.com/df-mc/dragonfly/server/internal/nbtconv"
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"github.com/df-mc/dragonfly/server/world"
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"github.com/go-gl/mathgl/mgl64"
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"math"
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"math/rand/v2"
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"time"
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)
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// NewTNT creates a new primed TNT entity.
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func NewTNT(opts world.EntitySpawnOpts, fuse time.Duration) *world.EntityHandle {
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conf := tntConf
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conf.ExistenceDuration = fuse
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if opts.Velocity.Len() == 0 {
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angle := rand.Float64() * math.Pi * 2
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opts.Velocity = mgl64.Vec3{-math.Sin(angle) * 0.02, 0.1, -math.Cos(angle) * 0.02}
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}
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return opts.New(TNTType, conf)
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}
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var tntConf = PassiveBehaviourConfig{
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Gravity: 0.04,
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Drag: 0.02,
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Expire: explodeTNT,
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}
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// explodeTNT creates an explosion at the position of e.
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func explodeTNT(e *Ent, tx *world.Tx) {
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block.ExplosionConfig{ItemDropChance: 1}.Explode(tx, e.Position())
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}
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// TNTType is a world.EntityType implementation for TNT.
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var TNTType tntType
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type tntType struct{}
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func (t tntType) Open(tx *world.Tx, handle *world.EntityHandle, data *world.EntityData) world.Entity {
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return &Ent{tx: tx, handle: handle, data: data}
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}
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func (tntType) EncodeEntity() string { return "minecraft:tnt" }
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func (tntType) NetworkOffset() float64 { return 0.49 }
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func (tntType) BBox(world.Entity) cube.BBox {
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return cube.Box(-0.49, 0, -0.49, 0.49, 0.98, 0.49)
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}
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func (t tntType) DecodeNBT(m map[string]any, data *world.EntityData) {
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conf := tntConf
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conf.ExistenceDuration = nbtconv.TickDuration[uint8](m, "Fuse")
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data.Data = conf.New()
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}
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func (tntType) EncodeNBT(data *world.EntityData) map[string]any {
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return map[string]any{"Fuse": uint8(data.Data.(*PassiveBehaviour).Fuse().Milliseconds() / 50)}
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}
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