From 6e6c4a157564100249bb58f412485055bb2d10cf Mon Sep 17 00:00:00 2001
From: historia <[not public]>
Date: Fri, 17 Jul 2026 17:12:39 -0400
Subject: feat: implement run energy, shorten walk time to 1-2 ticks between
 rooms, update graceful set

---
 internal/player/player.go | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'internal/player')

diff --git a/internal/player/player.go b/internal/player/player.go
index d78ae9d..ef3acb3 100644
--- a/internal/player/player.go
+++ b/internal/player/player.go
@@ -184,6 +184,7 @@ type Player struct {
 	MoveDirection          string                `yaml:"-"`
 	MoveTarget             int                   `yaml:"-"`
 	MovePendingTrigger     *behavior.Trigger     `yaml:"-"`
+	MoveUsesEnergy         bool                  `yaml:"-"`
 	VisualTickCurrent      int                   `yaml:"-"`
 	AutotriggerMod         string                `yaml:"-"`
 	QueuedTrigger          string                `yaml:"-"`
@@ -191,6 +192,8 @@ type Player struct {
 	HazardTimer            int                   `yaml:"-"`
 	PendingDangerDir       string                `yaml:"-"`
 	Battery                float64               `yaml:"battery"`
+	RunEnergy              int                   `yaml:"run_energy,omitempty"`
+	RunEnergyAccum         int                   `yaml:"-"`
 	ActiveTechs            map[string]bool       `yaml:"-"`
 	QuickTech              string                `yaml:"quick_tech,omitempty"`
 	TechActivatedSinceTick map[string]bool       `yaml:"-"`
@@ -231,6 +234,7 @@ func (p *Player) ClearMoveState() {
 	p.MoveDirection = ""
 	p.MoveTarget = 0
 	p.MovePendingTrigger = nil
+	p.MoveUsesEnergy = false
 }
 
 func (p *Player) OptionBool(name string) bool {
@@ -352,6 +356,7 @@ func New(name string) *Player {
 	p.Skills[Hitpoints] = XPForLevel(10)
 	p.HP = p.MaxHP()
 	p.Battery = p.MaxBattery()
+	p.RunEnergy = p.MaxRunEnergy()
 	return p
 }
 
@@ -467,6 +472,25 @@ func (p *Player) MaxBattery() float64 {
 	return float64(p.Level(Technology))
 }
 
+// MaxRunEnergy is 3x the player's Agility level (the OSRS-inspired cap).
+func (p *Player) MaxRunEnergy() int {
+	return 3 * p.Level(Agility)
+}
+
+func (p *Player) HasRunEnergy() bool {
+	return p.RunEnergy > 0
+}
+
+// ClampRunEnergy caps current run energy to the player's current maximum.
+// Called whenever the Agility level can change (XP gains) since leveling up
+// raises the cap but should not auto-refill the missing energy.
+func (p *Player) ClampRunEnergy() {
+	max := p.MaxRunEnergy()
+	if p.RunEnergy > max {
+		p.RunEnergy = max
+	}
+}
+
 func (p *Player) HasActiveTech(techID string) bool {
 	if p.ActiveTechs == nil {
 		return false
-- 
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