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use SDL's functions version inplace of libc version

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Sylvain
2021-11-21 22:30:48 +01:00
committed by Sam Lantinga
parent 35b7ce1893
commit d31251b014
46 changed files with 114 additions and 124 deletions
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Xcode-iOS/Demos/src/touch.c
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@@ -21,7 +21,7 @@ void
drawLine(SDL_Renderer *renderer, float startx, float starty, float dx, float dy)
{
float distance = sqrt(dx * dx + dy * dy); /* length of line segment (pythagoras) */
float distance = SDL_sqrt(dx * dx + dy * dy); /* length of line segment (pythagoras) */
int iterations = distance / PIXELS_PER_ITERATION + 1; /* number of brush sprites to draw for the line */
float dx_prime = dx / iterations; /* x-shift per iteration */
float dy_prime = dy / iterations; /* y-shift per iteration */