mirrors/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2025-11-17 15:51:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

use SDL's functions version inplace of libc version

Browse Source
This commit is contained in:
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
Download Patch File Download Diff File Expand all files Collapse all files

2
Xcode-iOS/Demos/src/accelerometer.c
View File

@@ -58,7 +58,7 @@ render(SDL_Renderer *renderer, int w, int h, double deltaTime)
ay * SDL_IPHONE_MAX_GFORCE / SINT16_MAX * GRAVITY_CONSTANT *
deltaMilliseconds;
speed = sqrt(shipData.vx * shipData.vx + shipData.vy * shipData.vy);
speed = SDL_sqrt(shipData.vx * shipData.vx + shipData.vy * shipData.vy);
if (speed > 0) {
/* compensate for friction */

12
Xcode-iOS/Demos/src/fireworks.c
View File

@@ -109,7 +109,7 @@ stepParticles(double deltaTime)
}
} else {
float speed =
sqrt(curr->xvel * curr->xvel + curr->yvel * curr->yvel);
SDL_sqrt(curr->xvel * curr->xvel + curr->yvel * curr->yvel);
/* if wind resistance is not powerful enough to stop us completely,
then apply winde resistance, otherwise just stop us completely */
if (WIND_RESISTANCE * deltaMilliseconds < speed) {
@@ -194,15 +194,15 @@ explodeEmitter(struct particle *emitter)
/* come up with a random angle and speed for new particle */
float theta = randomFloat(0, 2.0f * 3.141592);
float exponent = 3.0f;
float speed = randomFloat(0.00, powf(0.17, exponent));
speed = powf(speed, 1.0f / exponent);
float speed = randomFloat(0.00, SDL_powf(0.17, exponent));
speed = SDL_powf(speed, 1.0f / exponent);
/* select the particle at the end of our array */
struct particle *p = &particles[num_active_particles];
/* set the particles properties */
p->xvel = speed * cos(theta);
p->yvel = speed * sin(theta);
p->xvel = speed * SDL_cos(theta);
p->yvel = speed * SDL_sin(theta);
p->x = emitter->x + emitter->xvel;
p->y = emitter->y + emitter->yvel;
p->isActive = 1;
@@ -297,7 +297,7 @@ spawnEmitterParticle(GLfloat x, GLfloat y)
p->y = screen_h;
/* set velocity so that terminal point is (x,y) */
p->xvel = 0;
p->yvel = -sqrt(2 * ACCEL * (screen_h - y));
p->yvel = -SDL_sqrt(2 * ACCEL * (screen_h - y));
/* set other attributes */
p->size = 10 * pointSizeScale;
p->type = emitter;

2
Xcode-iOS/Demos/src/touch.c
View File

@@ -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 */