up3

server/entity/effect/regeneration.go

@@ -0,0 +1,36 @@
+package effect
+
+import (
+	"github.com/df-mc/dragonfly/server/world"
+	"image/color"
+)
+
+// Regeneration is an effect that causes the entity that it is added to slowly
+// regenerate health. The level of the effect influences the speed with which
+// the entity regenerates.
+var Regeneration regeneration
+
+type regeneration struct {
+	nopLasting
+}
+
+// Apply applies health to the world.Entity passed if the duration of the effect is at the right tick.
+func (regeneration) Apply(e world.Entity, eff Effect) {
+	interval := max(50>>(eff.Level()-1), 1)
+	if eff.Tick()%interval == 0 {
+		if l, ok := e.(living); ok {
+			l.Heal(1, RegenerationHealingSource{})
+		}
+	}
+}
+
+// RGBA ...
+func (regeneration) RGBA() color.RGBA {
+	return color.RGBA{R: 0xcd, G: 0x5c, B: 0xab, A: 0xff}
+}
+
+// RegenerationHealingSource is a healing source used when an entity regenerates
+// health from an effect.regeneration.
+type RegenerationHealingSource struct{}
+
+func (RegenerationHealingSource) HealingSource() {}