tome_lib/effect.go

package tome_lib

import (
	"log"

	"github.com/google/uuid"
)

type Effect struct {
	Owner     uuid.UUID
	Target    uuid.UUID
	ID        int
	Modifier  int
	NeedsCard bool
}

func RemoveEffect(source uuid.UUID, c *Card) {
	if c.Type == EmptyValue {
		return
	}
	for i, e := range c.Effects {
		if e.Owner == source {
			c.Effects = append(c.Effects[:i], c.Effects[i+1:]...)
		}
	}
}
func RemovePlayerEffect(source uuid.UUID, p *Player) {
	if p == nil {
		return
	}
	for i, e := range p.Effects {
		if e.Owner == source {
			p.Effects = append(p.Effects[:i], p.Effects[i+1:]...)
		}
	}
}
func AddEffect(c *Card, e *Effect) {
	if c.Type == EmptyValue && e.NeedsCard {
		//can't apply effect to empty card
		return
	}
	if e.Target == uuid.Nil {
		log.Println("trying to apply targeted effect before target set")
		return
	}
	if c.Position < 0 || c.Position > 3 {
		log.Println("trying to apply effect to card not on the board")
		return
	}
	for _, v := range c.Effects {
		if v.Owner == e.Owner && v.ID == e.ID && v.Target == e.Target {
			//can't stack effects
			return
		}
	}
	log.Printf("applying %v to %v", e, c)
	c.Effects = append(c.Effects, e)
}

func AddPlayerEffect(p *Player, e *Effect) {
	if p == nil || e == nil {
		log.Println("adding nil player efect")
		return
	}
	if e.Target != uuid.Nil {
		log.Println("trying to apply targeted effect to player set")
		return
	}
	for _, v := range p.Effects {
		if v.Owner == e.Owner && v.ID == e.ID {
			//can't stack effects
			return
		}
	}
	log.Printf("applying %v to player %v", e, p)
	p.Effects = append(p.Effects, e)
}