Rebuild UI as a scriptable element tree, archive the old system

The old UI system (X-macro static element list, hand-authored C
screens/widgets/focus stack) is archived under archive/ rather than
deleted, since it's a useful reference during the rewrite.

New native UI element pool (src/dusk/ui): a flat UI_ELEMENTS[128] pool
of tagged-union elements (Label, Rectangle, Scripted), a real
persistent parent/child tree (children[8] per element, cycle- and
capacity-checked uiElementSetParent), always-fresh worldX/worldY
(cheap enough to recompute on every read, no dirty-flag cache needed),
and cascading dispose. Rendering stays manual/immediate: a scripted
element with no render() override auto-renders its children by
default, but overriding render() takes full control (an override must
call renderChildren() itself to opt back in) -- this is deliberately
preserved end to end via a render()-shadow trampoline so overriding
render() always keeps working the same way regardless of how a node
is reached.

New scripting layer (src/dusk/script/module/ui): UIElement/Label/
Rectangle JS classes (Label/Rectangle share UIElement's prototype via
manual chaining, not JS `extends`), exposing x/y/worldX/worldY/parent/
add()/remove()/render()/renderChildren()/dispose(). UI.add()/
UI.remove() manage top-level render roots, mutually exclusive with
being someone's child.

Also: Scene gains a lateUpdate() hook (called once per frame after
every other update, for things like camera-follow that need to react
to where everything else ended up); several duskrpg call sites
(cutscene items, entityinteractable, entityplayer) that depended on
the now-archived RPG textbox are stubbed to console output instead of
a dialogue box, pending the new UI reaching that far.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
2026-08-13 11:13:23 -05:00
parent 7b58addf7e
commit 7ee04c78cd
118 changed files with 2502 additions and 391 deletions
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# Copyright (c) 2026 Dominic Masters
#
# This software is released under the MIT License.
# https://opensource.org/licenses/MIT
include(dusktest)
# Tests
dusktest(test_uiframe.c)
dusktest(test_uislider.c)
dusktest(test_uitab.c)
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/**
* Copyright (c) 2026 Dominic Masters
*
* This software is released under the MIT License.
* https://opensource.org/licenses/MIT
*/
#include "dusktest.h"
#include "ui/frame/uiframe.h"
static void test_uiFrameBuildSprites_layout(void **state) {
UI_FRAME.tileset = (tileset_t){
.tileWidth = 1,
.tileHeight = 1,
.tileCount = 9,
.columns = 3,
.rows = 3,
.uv = { 0.25f, 0.25f }
};
const float_t x = 100.0f;
const float_t y = 50.0f;
const float_t width = 40.0f;
const float_t height = 30.0f;
const float_t tileW = (float_t)UI_FRAME_BORDER_WIDTH;
const float_t tileH = (float_t)UI_FRAME_BORDER_HEIGHT;
spritebatchsprite_t sprites[9];
uiFrameBuildSprites(sprites, x, y, width, height);
// Top-left corner sits exactly at the rect's origin.
assert_float_equal(sprites[0].min[0], x, 0.0001f);
assert_float_equal(sprites[0].min[1], y, 0.0001f);
assert_float_equal(sprites[0].max[0], x + tileW, 0.0001f);
assert_float_equal(sprites[0].max[1], y + tileH, 0.0001f);
assert_float_equal(sprites[0].uvMin[0], 0.0f, 0.0001f);
assert_float_equal(sprites[0].uvMin[1], 0.0f, 0.0001f);
assert_float_equal(sprites[0].uvMax[0], 0.25f, 0.0001f);
assert_float_equal(sprites[0].uvMax[1], 0.25f, 0.0001f);
// Top-middle edge stretches to fill the width minus both corners.
assert_float_equal(sprites[1].min[0], x + tileW, 0.0001f);
assert_float_equal(sprites[1].max[0], x + width - tileW, 0.0001f);
assert_float_equal(sprites[1].max[1], y + tileH, 0.0001f);
// Center tile fills the remaining interior on both axes.
assert_float_equal(sprites[4].min[0], x + tileW, 0.0001f);
assert_float_equal(sprites[4].min[1], y + tileH, 0.0001f);
assert_float_equal(sprites[4].max[0], x + width - tileW, 0.0001f);
assert_float_equal(sprites[4].max[1], y + height - tileH, 0.0001f);
// Bottom-right corner sits exactly at the rect's far corner, sampling
// tileset column 2, row 2.
assert_float_equal(sprites[8].min[0], x + width - tileW, 0.0001f);
assert_float_equal(sprites[8].min[1], y + height - tileH, 0.0001f);
assert_float_equal(sprites[8].max[0], x + width, 0.0001f);
assert_float_equal(sprites[8].max[1], y + height, 0.0001f);
assert_float_equal(sprites[8].uvMin[0], 0.5f, 0.0001f);
assert_float_equal(sprites[8].uvMin[1], 0.5f, 0.0001f);
}
int main(int argc, char **argv) {
const struct CMUnitTest tests[] = {
cmocka_unit_test(test_uiFrameBuildSprites_layout),
};
return cmocka_run_group_tests(tests, NULL, NULL);
}
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/**
* Copyright (c) 2026 Dominic Masters
*
* This software is released under the MIT License.
* https://opensource.org/licenses/MIT
*/
#include "dusktest.h"
#include "ui/widget/uislider.h"
#include "util/memory.h"
// uiSliderInitFloat/InitInt require a real font (FONT_DEFAULT) to build
// the label's glyph cache, which needs a live GL context this test binary
// doesn't have -- see the label size caching contract for why this is
// safe to bypass here (uiSliderRebuildGeometry only reads slider->label's
// already-measured width/height, it never touches the font itself).
static void sliderSetupFloat(
uislider_t *slider,
const float_t value,
const float_t min,
const float_t max,
const float_t step
) {
memoryZero(slider, sizeof(uislider_t));
slider->label.width = 20;
slider->label.height = 10;
slider->type = UI_SLIDER_TYPE_FLOAT;
slider->min.f = min;
slider->max.f = max;
slider->step.f = step;
slider->value.f = value;
}
static void sliderSetupInt(
uislider_t *slider,
const int32_t value,
const int32_t min,
const int32_t max,
const int32_t step
) {
memoryZero(slider, sizeof(uislider_t));
slider->label.width = 20;
slider->label.height = 10;
slider->type = UI_SLIDER_TYPE_INT;
slider->min.i = min;
slider->max.i = max;
slider->step.i = step;
slider->value.i = value;
}
static void test_uiSliderRebuildGeometry_trackPosition(void **state) {
uislider_t slider;
sliderSetupFloat(&slider, 0.0f, 0.0f, 1.0f, 0.1f);
uiSliderRebuildGeometry(&slider);
const float_t expectedX = (float_t)slider.label.width + UI_SLIDER_GAP;
const float_t expectedY =
((float_t)slider.label.height - UI_SLIDER_TRACK_HEIGHT) * 0.5f;
assert_float_equal(slider.cachedTrack.min[0], expectedX, 0.0001f);
assert_float_equal(slider.cachedTrack.min[1], expectedY, 0.0001f);
assert_float_equal(
slider.cachedTrack.max[0], expectedX + UI_SLIDER_TRACK_WIDTH, 0.0001f
);
}
static void test_uiSliderRebuildGeometry_fillVisibility(void **state) {
uislider_t slider;
// At the minimum value, the ratio is 0 -- no fill should be visible.
sliderSetupFloat(&slider, 0.0f, 0.0f, 10.0f, 1.0f);
uiSliderRebuildGeometry(&slider);
assert_false(slider.cachedFillVisible);
// Halfway to max -- fill should cover half the track.
sliderSetupFloat(&slider, 5.0f, 0.0f, 10.0f, 1.0f);
uiSliderRebuildGeometry(&slider);
assert_true(slider.cachedFillVisible);
assert_float_equal(
slider.cachedFill.max[0] - slider.cachedFill.min[0],
UI_SLIDER_TRACK_WIDTH * 0.5f,
0.0001f
);
}
static void test_uiSliderRebuildGeometry_stepMarkers(void **state) {
uislider_t slider;
// 5 steps between 0 and 10 -- under the marker cap, so markers render.
sliderSetupInt(&slider, 0, 0, 10, 2);
uiSliderRebuildGeometry(&slider);
assert_int_equal(slider.cachedMarkerCount, 6);
assert_float_equal(
slider.cachedMarkers[0].min[0], slider.cachedTrack.min[0] -
UI_SLIDER_STEP_MARKER_WIDTH * 0.5f,
0.0001f
);
// 100 steps -- over the marker cap, so it falls back to a smooth fill
// with no markers.
sliderSetupInt(&slider, 0, 0, 100, 1);
uiSliderRebuildGeometry(&slider);
assert_int_equal(slider.cachedMarkerCount, 0);
}
int main(int argc, char **argv) {
const struct CMUnitTest tests[] = {
cmocka_unit_test(test_uiSliderRebuildGeometry_trackPosition),
cmocka_unit_test(test_uiSliderRebuildGeometry_fillVisibility),
cmocka_unit_test(test_uiSliderRebuildGeometry_stepMarkers),
};
return cmocka_run_group_tests(tests, NULL, NULL);
}
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/**
* Copyright (c) 2026 Dominic Masters
*
* This software is released under the MIT License.
* https://opensource.org/licenses/MIT
*/
#include "dusktest.h"
#include "ui/widget/uitab.h"
#include "util/memory.h"
// uiTabInit requires a real font (FONT_DEFAULT) to build the label's
// glyph cache, which needs a live GL context this test binary doesn't
// have. uiTabRebuildBackground only reads the label's already-measured
// width/height, so it's safe to set those directly and exercise it here.
static void test_uiTabRebuildBackground_matchesLabelSize(void **state) {
uitab_t tab;
memoryZero(&tab, sizeof(uitab_t));
tab.label.width = 42;
tab.label.height = 12;
uiTabRebuildBackground(&tab);
assert_float_equal(tab.cachedBackground.min[0], 0.0f, 0.0001f);
assert_float_equal(tab.cachedBackground.min[1], 0.0f, 0.0001f);
assert_float_equal(tab.cachedBackground.max[0], 42.0f, 0.0001f);
assert_float_equal(tab.cachedBackground.max[1], 12.0f, 0.0001f);
}
int main(int argc, char **argv) {
const struct CMUnitTest tests[] = {
cmocka_unit_test(test_uiTabRebuildBackground_matchesLabelSize),
};
return cmocka_run_group_tests(tests, NULL, NULL);
}