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spawnPoint.go
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/
spawnPoint.go
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package main
import (
"GoConsoleBT/collider"
direct "github.com/buger/goterm"
"sync/atomic"
"time"
)
const SPAWN_POINT_STATUS = 501
var (
SpawnPointStatus Event = Event{
EType: SPAWN_POINT_STATUS,
Payload: nil,
}
SPSAvailableSprite = NewContentSprite([]byte(direct.Color("Free", direct.GREEN)))
SPSUnavailableSprite = NewContentSprite([]byte(direct.Color("Lock", direct.RED)))
)
type SpawnPoint struct {
*Object
*ObservableObject
allowList [][]string
crossing bool
capture int64
}
func (receiver *SpawnPoint) AddAllowing(tag ...string) {
receiver.allowList = append(receiver.allowList, tag)
}
func (receiver *SpawnPoint) CanSpawn(object Tagable) bool {
list:
for _, andTag := range receiver.allowList {
for _, tag := range andTag {
if !object.HasTag(tag) {
continue list
}
}
return true
}
return false
}
func (receiver *SpawnPoint) IsAvailable() bool {
return !receiver.crossing && receiver.capture == 0
}
func (receiver *SpawnPoint) Capture() bool {
return atomic.CompareAndSwapInt64(&receiver.capture, 0, 1)
}
func (receiver *SpawnPoint) Update(timeLeft time.Duration) error {
if clBody := receiver.GetClBody(); clBody != nil {
crossing := false
for opposite, _ := range clBody.CollisionInfo().I() {
if !opposite.HasTag("obstacle") && !opposite.HasTag("spawnPoint") {
continue
}
if oiOpposite, ok := opposite.(ObjectInterface); !ok {
continue
} else {
dist := receiver.GetCenter().Minus(oiOpposite.GetCenter()).Abs()
size := receiver.GetWH().Plus(oiOpposite.GetWH()).Divide(Size{2, 2})
dist = dist.Minus(Center{size.W, size.H})
if dist.X < -collider.GRID_COORD_TOLERANCE && dist.Y < -collider.GRID_COORD_TOLERANCE {
crossing = true
break
}
}
}
if crossing != receiver.crossing {
receiver.crossing = crossing
if crossing {
receiver.removeTag("available")
receiver.addTag("unavailable")
if DEBUG_SPAWN_POINT_STATUS {
receiver.sprite = SPSUnavailableSprite
logger.Printf("cycle: %d spawn point %d is now unavailable\n", CycleID, receiver.ID)
}
receiver.Trigger(SpawnPointStatus, receiver, false)
} else {
receiver.removeTag("unavailable")
receiver.addTag("available")
if DEBUG_SPAWN_POINT_STATUS {
receiver.sprite = SPSAvailableSprite
logger.Printf("cycle: %d spawn point %d is now available\n", CycleID, receiver.ID)
}
receiver.Trigger(SpawnPointStatus, receiver, true)
receiver.capture = 0
}
}
}
return nil
}
func (receiver *SpawnPoint) Copy() *SpawnPoint {
instance := *receiver
instance.Object = receiver.Object.Copy()
instance.ObservableObject = receiver.ObservableObject.Copy()
instance.ObservableObject.Owner = instance
instance.allowList = make([][]string, len(receiver.allowList))
for i, list := range receiver.allowList {
instance.allowList[i] = make([]string, 0, len(list))
for _, tag := range list {
instance.allowList[i] = append(instance.allowList[i], tag)
}
}
return &instance
}
func NewSpawnPoint(object *Object, oo *ObservableObject) (*SpawnPoint, error) {
var sprite Spriteer
inst := new(SpawnPoint)
inst.Object = object
inst.ObservableObject = oo
oo.Owner = inst
if DEBUG_SPAWN_POINT_STATUS {
sprite = SPSAvailableSprite
inst.Attributes.Renderable = true
} else {
sprite = NewContentSprite([]byte{})
inst.Attributes.Renderable = false
}
if !inst.HasTag("spawnPoint") {
inst.addTag("spawnPoint")
}
inst.sprite = sprite
return inst, nil
}