ui: basic map scroller

client/world/renderer_smoke_all_primitives_test.go

@@ -0,0 +1,60 @@
+package world
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestSmoke_DrawPointsCirclesLinesFromSamePlan(t *testing.T) {
+	t.Parallel()
+
+	w := NewWorld(10, 10)
+	w.resetGrid(2 * SCALE)
+
+	// Mix primitives. Use values that are safely inside the world.
+	_, err := w.AddPoint(1, 1)
+	require.NoError(t, err)
+
+	_, err = w.AddCircle(2, 2, 1)
+	require.NoError(t, err)
+
+	// A line that wraps across X to ensure line splitting logic is exercised.
+	_, err = w.AddLine(9, 5, 1, 5)
+	require.NoError(t, err)
+
+	// Build index (in UI: IndexOnViewportChange does this).
+	for _, obj := range w.objects {
+		w.indexObject(obj)
+	}
+
+	params := RenderParams{
+		ViewportWidthPx:  10,
+		ViewportHeightPx: 10,
+		MarginXPx:        2,
+		MarginYPx:        2,
+		CameraXWorldFp:   5 * SCALE,
+		CameraYWorldFp:   5 * SCALE,
+		CameraZoom:       1.0,
+	}
+
+	plan, err := w.buildRenderPlanStageA(params)
+	require.NoError(t, err)
+
+	d := &fakePrimitiveDrawer{}
+
+	// Execute all three passes over the same plan.
+	drawPointsFromPlan(d, plan)
+	drawCirclesFromPlan(d, plan, w.W, w.H)
+	drawLinesFromPlan(d, plan, w.W, w.H)
+
+	names := d.CommandNames()
+
+	require.Contains(t, names, "AddPoint")
+	require.Contains(t, names, "AddCircle")
+	require.Contains(t, names, "AddLine")
+
+	// Ensure finalizers were used (points+circles use Fill, lines use Stroke).
+	require.Contains(t, names, "Fill")
+	require.Contains(t, names, "Stroke")
+}