no-wrap option; pivoted exponential zoom

client/world/renderer_circles.go

@@ -1,18 +1,20 @@
 package world
 
 // renderCirclesStageA performs a full expanded-canvas redraw but renders ONLY Circle primitives.
-func (w *World) renderCirclesStageA(drawer PrimitiveDrawer, params RenderParams) error {
-	plan, err := w.buildRenderPlanStageA(params)
-	if err != nil {
-		return err
-	}
+// func (w *World) renderCirclesStageA(drawer PrimitiveDrawer, params RenderParams) error {
+// 	plan, err := w.buildRenderPlanStageA(params)
+// 	if err != nil {
+// 		return err
+// 	}
 
-	drawCirclesFromPlan(drawer, plan, w.W, w.H)
-	return nil
-}
+// 	allowWrap := params.Options == nil || !params.Options.DisableWrapScroll
+
+// 	drawCirclesFromPlan(drawer, plan, w.W, w.H, allowWrap)
+// 	return nil
+// }
 
 // drawCirclesFromPlan executes a circles-only draw from an already built render plan.
-func drawCirclesFromPlan(drawer PrimitiveDrawer, plan RenderPlan, worldW, worldH int) {
+func drawCirclesFromPlan(drawer PrimitiveDrawer, plan RenderPlan, worldW, worldH int, allowWrap bool) {
 	for _, td := range plan.Tiles {
 		if td.ClipW <= 0 || td.ClipH <= 0 {
 			continue
@@ -40,7 +42,12 @@ func drawCirclesFromPlan(drawer PrimitiveDrawer, plan RenderPlan, worldW, worldH
 		copiesToDraw := make([]circleCopy, 0, len(circles))
 
 		for _, c := range circles {
-			shifts := circleWrapShifts(c, worldW, worldH)
+			var shifts []wrapShift
+			if allowWrap {
+				shifts = circleWrapShifts(c, worldW, worldH)
+			} else {
+				shifts = []wrapShift{{dx: 0, dy: 0}}
+			}
 			for _, s := range shifts {
 				if circleCopyIntersectsTile(c, s.dx, s.dy, td.Tile, worldW, worldH) {
 					copiesToDraw = append(copiesToDraw, circleCopy{c: c, dx: s.dx, dy: s.dy})