up3

server/entity/effect/weakness.go

@@ -0,0 +1,27 @@
+package effect
+
+import (
+	"image/color"
+)
+
+// Weakness is a lasting effect that reduces the damage dealt to other entities
+// with melee attacks.
+var Weakness weakness
+
+type weakness struct {
+	nopLasting
+}
+
+// Multiplier returns the damage multiplier of the effect.
+func (weakness) Multiplier(lvl int) float64 {
+	v := 0.2 * float64(lvl)
+	if v > 1 {
+		v = 1
+	}
+	return v
+}
+
+// RGBA ...
+func (weakness) RGBA() color.RGBA {
+	return color.RGBA{R: 0x48, G: 0x4d, B: 0x48, A: 0xff}
+}