IliaDenisov
123 lines
3.4 KiB
Go
123 lines
3.4 KiB
Go
package world
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import (
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"image"
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"image/color"
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"testing"
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"github.com/stretchr/testify/require"
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)
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type bgTheme struct {
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img image.Image
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}
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func (t bgTheme) ID() string { return "bg" }
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func (t bgTheme) Name() string { return "bg" }
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func (t bgTheme) BackgroundColor() color.Color { return color.RGBA{A: 255} }
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func (t bgTheme) BackgroundImage() image.Image { return t.img }
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func (t bgTheme) BackgroundTileMode() BackgroundTileMode { return BackgroundTileRepeat }
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func (t bgTheme) BackgroundScaleMode() BackgroundScaleMode { return BackgroundScaleNone }
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func (t bgTheme) BackgroundAnchorMode() BackgroundAnchorMode { return BackgroundAnchorViewport }
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func (t bgTheme) PointStyle() Style { return Style{FillColor: color.RGBA{A: 255}, PointRadiusPx: 2} }
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func (t bgTheme) LineStyle() Style { return Style{StrokeColor: color.RGBA{A: 255}, StrokeWidthPx: 1} }
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func (t bgTheme) CircleStyle() Style {
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return Style{FillColor: color.RGBA{A: 255}, StrokeColor: color.RGBA{A: 255}, StrokeWidthPx: 1}
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}
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func (t bgTheme) PointClassOverride(PointClassID) (StyleOverride, bool) {
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return StyleOverride{}, false
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}
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func (t bgTheme) LineClassOverride(LineClassID) (StyleOverride, bool) { return StyleOverride{}, false }
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func (t bgTheme) CircleClassOverride(CircleClassID) (StyleOverride, bool) {
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return StyleOverride{}, false
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}
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func TestRender_BackgroundImage_DrawsBeforePrimitives_FullRedraw(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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// 4x4 opaque image
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img := image.NewRGBA(image.Rect(0, 0, 4, 4))
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w.SetTheme(bgTheme{img: img})
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_, err := w.AddPoint(5, 5)
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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: 2,
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MarginYPx: 2,
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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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}
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d := &fakePrimitiveDrawer{}
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require.NoError(t, w.Render(d, params))
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cmds := d.Commands()
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iClear := indexOfFirstName(cmds, "ClearAllTo")
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iBg := indexOfFirstName(cmds, "DrawImage")
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iPrim := indexOfFirstName(cmds, "AddPoint")
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require.NotEqual(t, -1, iClear)
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require.NotEqual(t, -1, iBg)
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require.NotEqual(t, -1, iPrim)
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require.Less(t, iClear, iBg)
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require.Less(t, iBg, iPrim)
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}
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func TestRender_BackgroundImage_RedrawnInDirtyRects_OnIncrementalShift(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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img := image.NewRGBA(image.Rect(0, 0, 4, 4))
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w.SetTheme(bgTheme{img: img})
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// Ensure state: first full render commits.
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params := RenderParams{
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ViewportWidthPx: 10,
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ViewportHeightPx: 10,
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MarginXPx: 2,
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MarginYPx: 2,
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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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Incremental: &IncrementalPolicy{
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AllowShiftOnly: false,
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MaxCatchUpAreaPx: 0,
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RenderBudgetMs: 0,
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CoalesceUpdates: false,
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},
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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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// Move camera by 1px right in world (zoom=1 => 1px == 1 unit).
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params2 := params
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params2.CameraXWorldFp += 1 * SCALE
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d2 := &fakePrimitiveDrawer{}
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require.NoError(t, w.Render(d2, params2))
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// In incremental shift path we must see ClearRectTo and DrawImage.
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require.NotEmpty(t, d2.CommandsByName("CopyShift"))
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require.NotEmpty(t, d2.CommandsByName("ClearRectTo"))
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require.NotEmpty(t, d2.CommandsByName("DrawImage"))
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}
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