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exo/broadcast.go

42 lines
950 B
Go

package main
import (
"fmt"
"time"
)
type broadcast struct {
start time.Time
origin *System
dist float64
nextHitIndex int
message string
}
func NewBroadcast(from *System, template string, args ...interface{}) *broadcast {
return &broadcast{
start: time.Now(),
origin: from,
message: fmt.Sprintf(template, args...),
}
}
func (b *broadcast) Tick(frame int64) {
b.dist += options.lightSpeed
for ; b.nextHitIndex < len(b.origin.Distances()); b.nextHitIndex += 1 {
candidate := b.origin.Distances()[b.nextHitIndex]
if b.dist < candidate.dist {
break
}
candidate.s.NotifyInhabitants("message received from system %s:\n\t%s\n", b.origin.Label(), b.message)
}
}
func (b *broadcast) Dead() bool {
return b.dist > b.origin.Distances()[len(b.origin.Distances())-1].dist
}
func (b *broadcast) String() string {
return fmt.Sprintf("[broadcast origin: %s message: %s]", b.origin.name, b.message)
}