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Review comments to be value-generic

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raysan5 2016-06-02 18:49:40 +02:00
parent 5bcddca5e1
commit 80b3c4cd2b
1 changed files with 16 additions and 13 deletions
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29
src/easings.h
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@ -9,21 +9,24 @@
* // This requires lots of memory on system. * // This requires lots of memory on system.
* How to use: * How to use:
* The four inputs t,b,c,d are defined as follows: * The four inputs t,b,c,d are defined as follows:
* t = current time in milliseconds * t = current time (in any unit measure, but same unit as duration)
* b = starting position in only one dimension [X || Y || Z] your choice * b = starting value to interpolate
* c = the total change in value of b that needs to occur * c = the total change in value of b that needs to occur
* d = total time it should take to complete * d = total time it should take to complete (duration)
* *
* Example: * Example:
* float speed = 1.f; *
* float currentTime = 0.f; * int currentTime = 0;
* float currentPos[2] = {0,0}; * int duration = 100;
* float finalPos[2] = {1,1}; * float startPositionX = 0.0f;
* float startPosition[2] = currentPos;//x,y positions * float finalPositionX = 30.0f;
* while(currentPos[0] < finalPos[0]) * float currentPositionX = startPositionX;
* currentPos[0] = EaseSineIn(currentTime, startPosition[0], startPosition[0]-finalPos[0], speed); *
* currentPos[1] = EaseSineIn(currentTime, startPosition[1], startPosition[1]-finalPos[0], speed); * while (currentPositionX < finalPositionX)
* currentTime += diffTime(); * {
* currentPositionX = EaseSineIn(currentTime, startPositionX, finalPositionX - startPositionX, duration);
* currentTime++;
* }
* *
* A port of Robert Penner's easing equations to C (http://robertpenner.com/easing/) * A port of Robert Penner's easing equations to C (http://robertpenner.com/easing/)
* *
@ -87,7 +90,7 @@
#define EASEDEF extern #define EASEDEF extern
#endif #endif
#include <math.h> #include <math.h> // Required for: sin(), cos(), sqrt(), pow()
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { // Prevents name mangling of functions extern "C" { // Prevents name mangling of functions