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wormhole.go
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wormhole.go
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package cs
import (
"fmt"
"math/rand"
"slices"
"github.com/rs/zerolog/log"
)
type Wormhole struct {
MapObject
DestinationNum int `json:"destinationNum,omitempty"`
Stability WormholeStability `json:"stability,omitempty"`
YearsAtStability int `json:"yearsAtStability,omitempty"`
Spec WormholeSpec `json:"spec,omitempty"`
}
type WormholeSpec struct {
Stats WormholeStats
}
type WormholeStats struct {
YearsToDegrade int `json:"yearsToDegrade"`
ChanceToJump float64 `json:"chanceToJump"`
JiggleDistance int `json:"jiggleDistance"`
}
type WormholeStability string
const (
WormholeStabilityNone WormholeStability = ""
WormholeStabilityRockSolid WormholeStability = "RockSolid"
WormholeStabilityStable WormholeStability = "Stable"
WormholeStabilityMostlyStable WormholeStability = "MostlyStable"
WormholeStabilityAverage WormholeStability = "Average"
WormholeStabilitySlightlyVolatile WormholeStability = "SlightlyVolatile"
WormholeStabilityVolatile WormholeStability = "Volatile"
WormholeStabilityExtremelyVolatile WormholeStability = "ExtremelyVolatile"
)
var WormholeStabilities []WormholeStability = []WormholeStability{
WormholeStabilityRockSolid,
WormholeStabilityStable,
WormholeStabilityMostlyStable,
WormholeStabilityAverage,
WormholeStabilitySlightlyVolatile,
WormholeStabilityVolatile,
WormholeStabilityExtremelyVolatile,
}
func (w *Wormhole) String() string {
return fmt.Sprintf("Wormhole #%d %v", w.Num, w.Position)
}
func newWormhole(position Vector, num int, stability WormholeStability) *Wormhole {
return &Wormhole{
MapObject: MapObject{
Type: MapObjectTypeWormhole,
Position: position,
Num: num,
},
Stability: stability,
}
}
func computeWormholeSpec(w *Wormhole, rules *Rules) WormholeSpec {
return WormholeSpec{
Stats: rules.WormholeStatsByStability[w.Stability],
}
}
func generateWormhole(mapObjectGetter mapObjectGetter, area Vector, random *rand.Rand, planetPositions []Vector, wormholePositions []Vector, minDistanceFromPlanets int) (position Vector, stability WormholeStability, err error) {
width, height := int(area.X), int(area.Y)
position = Vector{X: float64(random.Intn(width)), Y: float64(random.Intn(height))}
minWormholeDistance := (height + width) / 2 / 4
posCheckCount := 0
for !mapObjectGetter.isPositionValid(position, &planetPositions, float64(minDistanceFromPlanets)) ||
!mapObjectGetter.isPositionValid(position, &wormholePositions, float64(minWormholeDistance)) {
position = Vector{X: float64(random.Intn(width)), Y: float64(random.Intn(height))}
posCheckCount++
if posCheckCount > 1000 {
return Vector{}, WormholeStabilityNone, fmt.Errorf("find a valid position for a wormhole in 1000 tries, min: %d, numPlanets: %d, numWormholes: %d, area: %v", minDistanceFromPlanets, len(planetPositions), len(wormholePositions), area)
}
}
stability = WormholeStabilities[random.Intn(len(WormholeStabilities))]
return position, stability, nil
}
func (w *Wormhole) jiggle(area Vector, mapObjectGetter mapObjectGetter, random *rand.Rand) {
stats := w.Spec.Stats
// don't infinite jiggle
jiggleCount := 0
var newPosition Vector
for {
newPosition = Vector{
ClampFloat64(w.Position.X+float64(random.Intn(stats.JiggleDistance/2)-stats.JiggleDistance/2), 0, area.X),
ClampFloat64(w.Position.Y+float64(random.Intn(stats.JiggleDistance/2)-stats.JiggleDistance/2), 0, area.Y),
}
log.Debug().Msgf("%v jiggled to %v", w, newPosition)
jiggleCount++
if mapObjectGetter.getMapObjectsAtPosition(newPosition) == nil || jiggleCount > 100 {
break
}
}
w.Position = newPosition
w.MarkDirty()
}
func (w *Wormhole) degrade() {
stats := w.Spec.Stats
w.YearsAtStability++
w.MarkDirty()
if w.YearsAtStability > stats.YearsToDegrade && stats.YearsToDegrade != Infinite {
if w.Stability != WormholeStabilityExtremelyVolatile {
// go to the next stability
w.Stability = WormholeStabilities[slices.Index(WormholeStabilities, w.Stability)+1]
w.YearsAtStability = 0
w.MarkDirty()
log.Debug().Msgf("%v degraded to %s", w, w.Stability)
}
}
}
func (w *Wormhole) shouldJump(random *rand.Rand) bool {
randVal := random.Float64()
return w.Spec.Stats.ChanceToJump > randVal
}