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[rshapes] Review DrawRectangleLines() pixel offset (#4261)

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* [rshapes] Remove `DrawRectangleLines()`'s + 1 offset

* ... and replace it with a -/+ 0.5 offset divided by current cam's zoom.
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RadsammyT 2024-10-24 07:08:12 -04:00 • committed by GitHub
parent 530bb3dc57
commit 385187f795
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1 changed files with 10 additions and 8 deletions
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18
src/rshapes.c
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@ -807,19 +807,21 @@ void DrawRectangleGradientEx(Rectangle rec, Color topLeft, Color bottomLeft, Col
// but it solves another issue: https://github.com/raysan5/raylib/issues/3884
void DrawRectangleLines(int posX, int posY, int width, int height, Color color)
{
Matrix mat = rlGetMatrixModelview();
float zoomElement = 0.5f / mat.m0;
rlBegin(RL_LINES);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex2f((float)posX, (float)posY);
rlVertex2f((float)posX + (float)width, (float)posY + 1);
rlVertex2f((float)posX - zoomElement, (float)posY);
rlVertex2f((float)posX + (float)width + zoomElement, (float)posY);
rlVertex2f((float)posX + (float)width, (float)posY + 1);
rlVertex2f((float)posX + (float)width, (float)posY + (float)height);
rlVertex2f((float)posX + (float)width, (float)posY - zoomElement);
rlVertex2f((float)posX + (float)width, (float)posY + (float)height + zoomElement);
rlVertex2f((float)posX + (float)width, (float)posY + (float)height);
rlVertex2f((float)posX + 1, (float)posY + (float)height);
rlVertex2f((float)posX + (float)width + zoomElement, (float)posY + (float)height);
rlVertex2f((float)posX - zoomElement, (float)posY + (float)height);
rlVertex2f((float)posX + 1, (float)posY + (float)height);
rlVertex2f((float)posX + 1, (float)posY + 1);
rlVertex2f((float)posX, (float)posY + (float)height + zoomElement);
rlVertex2f((float)posX, (float)posY - zoomElement);
rlEnd();
}