TarnaWijaya
26ed99fda6
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67 lines
2.1 KiB
Go
67 lines
2.1 KiB
Go
package entity
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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/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/rand/v2"
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"slices"
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)
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// orbSplitSizes contains split sizes used for dropping experience orbs.
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var orbSplitSizes = []int{2477, 1237, 617, 307, 149, 73, 37, 17, 7, 3, 1}
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// NewExperienceOrbs takes in a position and an amount and automatically splits the amount into multiple orbs, returning
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// a slice of the created orbs.
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func NewExperienceOrbs(pos mgl64.Vec3, amount int) (orbs []*world.EntityHandle) {
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for amount > 0 {
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size := orbSplitSizes[slices.IndexFunc(orbSplitSizes, func(value int) bool {
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return amount >= value
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})]
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orbs = append(orbs, NewExperienceOrb(world.EntitySpawnOpts{Position: pos}, size))
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amount -= size
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}
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return
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}
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// NewExperienceOrb creates a new experience orb and returns it.
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func NewExperienceOrb(opts world.EntitySpawnOpts, xp int) *world.EntityHandle {
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conf := experienceOrbConf
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conf.Experience = xp
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if opts.Velocity.Len() == 0 {
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opts.Velocity = mgl64.Vec3{(rand.Float64()*0.2 - 0.1) * 2, rand.Float64() * 0.4, (rand.Float64()*0.2 - 0.1) * 2}
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}
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return opts.New(ExperienceOrbType, conf)
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}
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var experienceOrbConf = ExperienceOrbBehaviourConfig{
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Gravity: 0.04,
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Drag: 0.02,
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}
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// ExperienceOrbType is a world.EntityType implementation for ExperienceOrb.
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var ExperienceOrbType experienceOrbType
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type experienceOrbType struct{}
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func (t experienceOrbType) 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 (experienceOrbType) EncodeEntity() string { return "minecraft:xp_orb" }
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func (experienceOrbType) BBox(world.Entity) cube.BBox {
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return cube.Box(-0.125, 0, -0.125, 0.125, 0.25, 0.125)
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}
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func (experienceOrbType) DecodeNBT(m map[string]any, data *world.EntityData) {
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conf := experienceOrbConf
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conf.Experience = int(nbtconv.Int32(m, "Value"))
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data.Data = conf.New()
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}
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func (experienceOrbType) EncodeNBT(data *world.EntityData) map[string]any {
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return map[string]any{"Value": int32(data.Data.(*ExperienceOrbBehaviour).Experience())}
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}
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