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[examples] Reorganize some conditions to fix overlap bugs (#4829)

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* Reorganize some conditions to fix overlap bugs

* Fix edge case where control point selection outlives mouse down
This commit is contained in:
Amy Wilder 2025-03-09 06:40:24 -04:00 • committed by GitHub
parent 5bda46960c
commit 61a026f7ef
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GPG key ID: B5690EEEBB952194
1 changed files with 30 additions and 20 deletions
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24
examples/shapes/shapes_splines_drawing.c
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@ -101,15 +101,18 @@ int main(void)
}
// Spline point focus and selection logic
if ((selectedPoint == -1) && ((splineTypeActive != SPLINE_BEZIER) || (selectedControlPoint == NULL)))
{
focusedPoint = -1;
for (int i = 0; i < pointCount; i++)
{
if (CheckCollisionPointCircle(GetMousePosition(), points[i], 8.0f))
{
focusedPoint = i;
if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) selectedPoint = i;
break;
}
else focusedPoint = -1;
}
if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) selectedPoint = focusedPoint;
}
// Spline point movement logic
@ -123,21 +126,23 @@ int main(void)
if ((splineTypeActive == SPLINE_BEZIER) && (focusedPoint == -1))
{
// Spline control point focus and selection logic
if (selectedControlPoint == NULL)
{
focusedControlPoint = NULL;
for (int i = 0; i < pointCount - 1; i++)
{
if (CheckCollisionPointCircle(GetMousePosition(), control[i].start, 6.0f))
{
focusedControlPoint = &control[i].start;
if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) selectedControlPoint = &control[i].start;
break;
}
else if (CheckCollisionPointCircle(GetMousePosition(), control[i].end, 6.0f))
{
focusedControlPoint = &control[i].end;
if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) selectedControlPoint = &control[i].end;
break;
}
else focusedControlPoint = NULL;
}
if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) selectedControlPoint = focusedControlPoint;
}
// Spline control point movement logic
@ -153,6 +158,9 @@ int main(void)
else if (IsKeyPressed(KEY_TWO)) splineTypeActive = 1;
else if (IsKeyPressed(KEY_THREE)) splineTypeActive = 2;
else if (IsKeyPressed(KEY_FOUR)) splineTypeActive = 3;
// Clear selection when changing to a spline without control points
if (IsKeyPressed(KEY_ONE) || IsKeyPressed(KEY_TWO) || IsKeyPressed(KEY_THREE)) selectedControlPoint = NULL;
//----------------------------------------------------------------------------------
// Draw
@ -249,7 +257,7 @@ int main(void)
}
// Check all possible UI states that require controls lock
if (splineTypeEditMode) GuiLock();
if (splineTypeEditMode || (selectedPoint != -1) || (selectedControlPoint != NULL)) GuiLock();
// Draw spline config
GuiLabel((Rectangle){ 12, 62, 140, 24 }, TextFormat("Spline thickness: %i", (int)splineThickness));
@ -257,11 +265,13 @@ int main(void)
GuiCheckBox((Rectangle){ 12, 110, 20, 20 }, "Show point helpers", &splineHelpersActive);
GuiUnlock();
if (splineTypeEditMode) GuiUnlock();
GuiLabel((Rectangle){ 12, 10, 140, 24 }, "Spline type:");
if (GuiDropdownBox((Rectangle){ 12, 8 + 24, 140, 28 }, "LINEAR;BSPLINE;CATMULLROM;BEZIER", &splineTypeActive, splineTypeEditMode)) splineTypeEditMode = !splineTypeEditMode;
GuiUnlock();
EndDrawing();
//----------------------------------------------------------------------------------
}