developer/galaxy-game
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

draw optimizations

Browse Source
This commit is contained in:
IliaDenisov
2026-03-08 23:30:11 +02:00
parent fdcbb5d6f4
commit ac35360d60
18 changed files with 875 additions and 566 deletions
Download Patch File Download Diff File Expand all files Collapse all files
client/world/renderer_lines_test.go
-126
View File
@@ -6,132 +6,6 @@ import (
"github.com/stretchr/testify/require"
)
func TestDrawLinesFromPlan_WrapX_SplitsAndDrawsInThreeXTiles(t *testing.T) {
t.Parallel()
w := NewWorld(10, 10)
w.resetGrid(2 * SCALE)
// Horizontal line that wraps across X: 9 -> 1 at y=5.
id, err := w.AddLine(9, 5, 1, 5)
require.NoError(t, err)
w.indexObject(w.objects[id])
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{}
drawLinesFromPlan(d, plan, w.W, w.H, true)
// Expect drawing in 3 X tiles (left partial, middle full, right partial) for the central Y tile:
// Each tile group: Save, ClipRect, AddLine(s), Stroke, Restore
//
// Left tile (offsetX=-10000): 1 line segment.
// Middle tile (offsetX=0): 2 segments (wrapped split).
// Right tile (offsetX=10000): 1 segment.
wantNames := []string{
"Save", "ClipRect", "AddLine", "Stroke", "Restore",
"Save", "ClipRect", "AddLine", "AddLine", "Stroke", "Restore",
"Save", "ClipRect", "AddLine", "Stroke", "Restore",
}
require.Equal(t, wantNames, d.CommandNames())
// Group 1: left strip clip (0,2,2,10), line at y=7 from x=1..2
{
requireCommandArgs(t, requireDrawerCommandAt(t, d, 1), 0, 2, 2, 10)
requireCommandArgs(t, requireDrawerCommandAt(t, d, 2), 1, 7, 2, 7)
}
// Group 2: middle strip clip (2,2,10,10), two segments:
// segment [9000..10000] => x 11..12, y 7
// segment [0..1000] => x 2..3, y 7
{
requireCommandArgs(t, requireDrawerCommandAt(t, d, 6), 2, 2, 10, 10)
// The order of segments is stable with our splitting: first the one ending at boundary, then the remainder.
requireCommandArgs(t, requireDrawerCommandAt(t, d, 7), 11, 7, 12, 7)
requireCommandArgs(t, requireDrawerCommandAt(t, d, 8), 2, 7, 3, 7)
}
// Group 3: right strip clip (12,2,2,10), line at y=7 from x=12..13
{
requireCommandArgs(t, requireDrawerCommandAt(t, d, 12), 12, 2, 2, 10) // ClipRect
requireCommandArgs(t, requireDrawerCommandAt(t, d, 13), 12, 7, 13, 7) // AddLine
}
}
func TestDrawLinesFromPlan_WrapY_SplitsAndDrawsInThreeYTiles(t *testing.T) {
t.Parallel()
w := NewWorld(10, 10)
w.resetGrid(2 * SCALE)
// Vertical line that wraps across Y: 9 -> 1 at x=5.
id, err := w.AddLine(5, 9, 5, 1)
require.NoError(t, err)
w.indexObject(w.objects[id])
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{}
drawLinesFromPlan(d, plan, w.W, w.H, true)
// Here we expect 3 Y tiles for the central X tile:
// Top partial, middle full (two segments), bottom partial.
//
// The exact ordering of tiles is by tx then ty, so X=middle strips first.
// For this geometry the line only intersects the middle X tiles (offsetX=0),
// but spans Y across -1,0,1.
wantNames := []string{
"Save", "ClipRect", "AddLine", "Stroke", "Restore",
"Save", "ClipRect", "AddLine", "AddLine", "Stroke", "Restore",
"Save", "ClipRect", "AddLine", "Stroke", "Restore",
}
require.Equal(t, wantNames, d.CommandNames())
// Group 1: top strip clip (2,0,10,2), line at x=7 from y=1..2
{
requireCommandArgs(t, requireDrawerCommandAt(t, d, 1), 2, 0, 10, 2)
requireCommandArgs(t, requireDrawerCommandAt(t, d, 2), 7, 1, 7, 2)
}
// Group 2: middle strip clip (2,2,10,10), two segments:
// segment [9000..10000] => y 11..12 at x=7
// segment [0..1000] => y 2..3 at x=7
{
requireCommandArgs(t, requireDrawerCommandAt(t, d, 6), 2, 2, 10, 10)
requireCommandArgs(t, requireDrawerCommandAt(t, d, 7), 7, 11, 7, 12)
requireCommandArgs(t, requireDrawerCommandAt(t, d, 8), 7, 2, 7, 3)
}
// Group 3: bottom strip clip (2,12,10,2), line at x=7 from y=12..13
{
requireCommandArgs(t, requireDrawerCommandAt(t, d, 12), 2, 12, 10, 2) // ClipRect
requireCommandArgs(t, requireDrawerCommandAt(t, d, 13), 7, 12, 7, 13) // AddLine
}
}
func TestTorusShortestLineSegments_TieCaseIsDeterministicAndSplits(t *testing.T) {
t.Parallel()