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Minor optimisation.

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This commit is contained in:
Blaz Kristan 2022-08-22 17:06:28 +02:00
parent cf46564c67
commit 053083f600
1 changed files with 2 additions and 2 deletions
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wled00/FX.cpp
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@ -2826,7 +2826,7 @@ uint16_t mode_bouncing_balls(void) {
// number of balls based on intensity setting to max of 7 (cycles colors) // number of balls based on intensity setting to max of 7 (cycles colors)
// non-chosen color is a random color // non-chosen color is a random color
uint8_t numBalls = int(((SEGMENT.intensity * (maxNumBalls - 0.8f)) / 255) + 1); uint16_t numBalls = int(((SEGMENT.intensity * (maxNumBalls - 0.8f)) / 255) + 1);
float gravity = -9.81; // standard value of gravity float gravity = -9.81; // standard value of gravity
float impactVelocityStart = sqrt( -2 * gravity); float impactVelocityStart = sqrt( -2 * gravity);
@ -2848,7 +2848,7 @@ uint16_t mode_bouncing_balls(void) {
if (balls[i].height < 0) { //start bounce if (balls[i].height < 0) { //start bounce
balls[i].height = 0; balls[i].height = 0;
//damping for better effect using multiple balls //damping for better effect using multiple balls
float dampening = 0.90 - float(i)/(float(numBalls) * float(numBalls)); // avoid use pow(x, 2) - its extremely slow ! float dampening = 0.90 - float(i)/float(numBalls * numBalls); // avoid use pow(x, 2) - its extremely slow !
balls[i].impactVelocity = dampening * balls[i].impactVelocity; balls[i].impactVelocity = dampening * balls[i].impactVelocity;
balls[i].lastBounceTime = time; balls[i].lastBounceTime = time;