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Add DrawSplineSegmentLinearVar

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This commit is contained in:
Henry Wilder 2025-03-04 12:02:39 -05:00
commit 6f89aa57ab
1 changed files with 109 additions and 6 deletions
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25
examples/shapes/shapes_splines_drawing.c
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@ -35,6 +35,7 @@ typedef enum {
SPLINE_BASIS, // B-Spline
SPLINE_CATMULLROM, // Catmull-Rom
SPLINE_BEZIER, // Cubic Bezier
SPLINE_LINEAR_VAR, // Linear, variable thickness
SPLINE_BEZIER_VAR // Cubic Bezier, variable thickness
} SplineType;
@ -79,7 +80,8 @@ int main(void)
// Spline config variables
float splineThickness = 8.0f;
int splineTypeActive = SPLINE_BEZIER_VAR; // 0-Linear, 1-BSpline, 2-CatmullRom, 3-Bezier, 4-BezierVar
int splineTypeActive = SPLINE_LINEAR_VAR; // 0-Linear, 1-BSpline, 2-CatmullRom, 3-Bezier, 4-LinearVar, 5-BezierVar
// TODO: Change the default back to SPLINE_LINEAR when finished testing
bool splineTypeEditMode = false;
bool splineHelpersActive = true;
@ -155,6 +157,7 @@ int main(void)
else if (IsKeyPressed(KEY_THREE)) splineTypeActive = 2;
else if (IsKeyPressed(KEY_FOUR)) splineTypeActive = 3;
else if (IsKeyPressed(KEY_FIVE)) splineTypeActive = 4;
else if (IsKeyPressed(KEY_SIX)) splineTypeActive = 5;
//----------------------------------------------------------------------------------
// Draw
@ -218,6 +221,21 @@ int main(void)
}
*/
}
else if (splineTypeActive == SPLINE_LINEAR_VAR)
{
float thicks[] = {
0.0f,
splineThickness,
splineThickness,
0.0f,
};
// Draw spline: variable-width linear
for (int i = 0; i < pointCount - 1; ++i)
{
DrawSplineSegmentLinearVar(points[i], points[i+1], thicks, 4, RED);
}
}
else if (splineTypeActive == SPLINE_BEZIER_VAR)
{
float thicks[] = {
@ -238,7 +256,7 @@ int main(void)
pointsInterleaved[3*(pointCount - 1)] = points[pointCount - 1];
// Draw spline: cubic-bezier (with control points)
// Draw spline: variable-width cubic-bezier (with control points)
for (int i = 0; i < pointCount - 1; ++i)
{
DrawSplineSegmentBezierCubicVar(points[i], control[i].start, control[i].end, points[i+1], thicks, 4, RED);
@ -272,6 +290,7 @@ int main(void)
{
DrawCircleLinesV(points[i], (focusedPoint == i)? 12.0f : 8.0f, (focusedPoint == i)? BLUE: DARKBLUE);
if ((splineTypeActive != SPLINE_LINEAR) &&
(splineTypeActive != SPLINE_LINEAR_VAR) &&
(splineTypeActive != SPLINE_BEZIER) &&
(splineTypeActive != SPLINE_BEZIER_VAR) &&
(i < pointCount - 1)) DrawLineV(points[i], points[i + 1], GRAY);
@ -292,7 +311,7 @@ int main(void)
GuiUnlock();
GuiLabel((Rectangle){ 12, 10, 140, 24 }, "Spline type:");
if (GuiDropdownBox((Rectangle){ 12, 8 + 24, 140, 28 }, "LINEAR;BSPLINE;CATMULLROM;BEZIER;BEZIER VARIABLE", &splineTypeActive, splineTypeEditMode)) splineTypeEditMode = !splineTypeEditMode;
if (GuiDropdownBox((Rectangle){ 12, 8 + 24, 140, 28 }, "LINEAR;BSPLINE;CATMULLROM;BEZIER;LINEAR VARIABLE;BEZIER VARIABLE", &splineTypeActive, splineTypeEditMode)) splineTypeEditMode = !splineTypeEditMode;
EndDrawing();
//----------------------------------------------------------------------------------