68 lines
1.5 KiB
Go
68 lines
1.5 KiB
Go
package world
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import (
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestRender_SortsByPriorityWithinTile(t *testing.T) {
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t.Parallel()
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w := NewWorld(10, 10)
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w.resetGrid(2 * SCALE)
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// Same tile. Priorities deliberately mixed.
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_, err := w.AddCircle(5, 5, 1, CircleWithPriority(500))
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require.NoError(t, err)
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_, err = w.AddLine(1, 5, 9, 5, LineWithPriority(100))
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require.NoError(t, err)
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_, err = w.AddPoint(5, 6, PointWithPriority(300))
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require.NoError(t, err)
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for _, obj := range w.objects {
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w.indexObject(obj)
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}
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params := RenderParams{
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ViewportWidthPx: 10,
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ViewportHeightPx: 10,
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MarginXPx: 0,
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MarginYPx: 0,
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CameraXWorldFp: 5 * SCALE,
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CameraYWorldFp: 5 * SCALE,
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CameraZoom: 1.0,
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Options: &RenderOptions{
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// default: wrap on
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},
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}
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d := &fakePrimitiveDrawer{}
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require.NoError(t, w.Render(d, params))
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// We verify the first occurrence of each primitive kind follows priority order.
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// Since each object is drawn with Add* + Fill/Stroke immediately, order should match.
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cmds := d.Commands()
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firstLine := indexOfFirst(cmds, "AddLine")
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firstCircle := indexOfFirst(cmds, "AddCircle")
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firstPoint := indexOfFirst(cmds, "AddPoint")
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require.NotEqual(t, -1, firstLine)
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require.NotEqual(t, -1, firstCircle)
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require.NotEqual(t, -1, firstPoint)
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require.Less(t, firstLine, firstPoint)
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require.Less(t, firstPoint, firstCircle) // 300 before 500
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}
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func indexOfFirst(cmds []fakeDrawerCommand, name string) int {
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for i, c := range cmds {
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if c.Name == name {
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return i
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}
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}
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return -1
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}
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