RegionTintUI

Overview

Image tint that reflects a region’s control and subtly pulses when the region is selected. The color blends from the sprite’s startingColor → controlledColor as control rises, and switches to fullControlColor at 100%. The pulse uses a SmoothStep ping–pong between selectedFadeEffectMin and 1.

Serialized

• RegionVariable selectedRegion — current focus.
• Region region — the region this icon represents.
• float selectedFadeEffectTime, selectedFadeEffectMin, deselectedReturnTime — pulse timings.
• Color controlledColor, fullControlColor.

Behavior

• Awake/OnEnable → caches the Image, sets alphaHitTestMinimumThreshold = 0.5, starts SelectedFadeEffect().
• Tick() → sets image.color.rgb = TargetColor().rgb and forces a = 1.
• SelectedFadeEffect()
  • When selectedRegion == region: ping–pongs a fade multiplier between selectedFadeEffectMin..1.
  • Otherwise: eases the multiplier back to 1 over deselectedReturnTime.
• TargetColor()
  • If region.Control >= 1 → fullControlColor * fade.
  • Else → Lerp(startingColor, controlledColor, region.Control) * fade.
• OnDisable/OnDestroy → stops coroutines.