TarnaWijaya
26ed99fda6
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103 lines
3.1 KiB
Go
103 lines
3.1 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/block/cube/trace"
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"github.com/df-mc/dragonfly/server/entity/effect"
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"github.com/df-mc/dragonfly/server/item/potion"
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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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"time"
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)
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// SplashableBlock is a block that can be splashed with a splash bottle.
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type SplashableBlock interface {
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world.Block
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// Splash is called when a water bottle splashes onto a block.
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Splash(tx *world.Tx, pos cube.Pos)
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}
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// SplashableEntity is an entity that can be splashed with a splash bottle.
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type SplashableEntity interface {
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world.Entity
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// Splash is called when a water bottle splashes onto an entity.
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Splash(tx *world.Tx, pos mgl64.Vec3)
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}
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// potionSplash returns a function that creates a potion splash with a specific
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// duration multiplier and potion type.
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func potionSplash(durMul float64, pot potion.Potion, linger bool) func(e *Ent, tx *world.Tx, res trace.Result) {
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return func(e *Ent, tx *world.Tx, res trace.Result) {
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pos := e.Position()
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effects := pot.Effects()
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box := e.H().Type().BBox(e).Translate(pos)
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if len(effects) > 0 {
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for otherE := range filterLiving(tx.EntitiesWithin(box.GrowVec3(mgl64.Vec3{8.25, 4.25, 8.25}))) {
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otherPos := otherE.Position()
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if !otherE.H().Type().BBox(otherE).Translate(otherPos).IntersectsWith(box.GrowVec3(mgl64.Vec3{4.125, 2.125, 4.125})) {
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continue
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}
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dist := otherPos.Sub(pos).Len()
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if dist > 4 {
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continue
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}
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f := 1 - dist/4
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if entityResult, ok := res.(trace.EntityResult); ok && entityResult.Entity().H() == otherE.H() {
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f = 1
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}
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splashed := otherE.(Living)
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for _, eff := range effects {
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if _, ok := eff.Type().(effect.LastingType); !ok {
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splashed.AddEffect(effect.NewInstantWithPotency(eff.Type(), eff.Level(), f))
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continue
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}
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dur := time.Duration(float64(eff.Duration()) * durMul * f)
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if dur < time.Second {
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continue
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}
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splashed.AddEffect(effect.New(eff.Type().(effect.LastingType), eff.Level(), dur))
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}
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}
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} else if pot == potion.Water() {
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switch result := res.(type) {
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case trace.BlockResult:
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blockPos := result.BlockPosition().Side(result.Face())
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if tx.Block(blockPos) == fire() {
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tx.SetBlock(blockPos, nil, nil)
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}
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for _, f := range cube.HorizontalFaces() {
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if h := blockPos.Side(f); tx.Block(h) == fire() {
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tx.SetBlock(h, nil, nil)
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}
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if b, ok := tx.Block(blockPos.Side(f)).(SplashableBlock); ok {
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b.Splash(tx, blockPos.Side(f))
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}
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}
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resultPos := result.BlockPosition()
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if b, ok := tx.Block(resultPos).(SplashableBlock); ok {
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b.Splash(tx, resultPos)
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}
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case trace.EntityResult:
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// TODO: Damage endermen, blazes, striders and snow golems when implemented and rehydrate axolotls.
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}
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for otherE := range filterLiving(tx.EntitiesWithin(box.GrowVec3(mgl64.Vec3{8.25, 4.25, 8.25}))) {
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if splashE, ok := otherE.(SplashableEntity); ok {
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splashE.Splash(tx, otherE.Position())
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}
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}
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}
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if linger {
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tx.AddEntity(NewAreaEffectCloud(world.EntitySpawnOpts{Position: pos}, pot))
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}
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}
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}
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