mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-28 10:40:39 +00:00
341 lines
7.4 KiB
C
341 lines
7.4 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2014-2015 - Jean-André Santoni
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* Copyright (C) 2011-2015 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "menu_animation.h"
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#include "../driver.h"
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#include <math.h>
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static void tween_free(tween_t *tw)
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{
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if (tw)
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free(tw);
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tw = NULL;
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}
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void add_tween(float duration, float target_value, float* subject,
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easingFunc easing, tweenCallback callback)
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{
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tween_t *tween = NULL;
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tween_t *temp_tweens = (tween_t*)
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realloc(driver.menu->tweens,
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(driver.menu->numtweens + 1) * sizeof(tween_t));
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if (!temp_tweens)
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{
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tween_free(driver.menu->tweens);
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return;
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}
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driver.menu->tweens = temp_tweens;
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tween = (tween_t*)&driver.menu->tweens[driver.menu->numtweens];
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if (!tween)
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return;
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tween->alive = 1;
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tween->duration = duration;
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tween->running_since = 0;
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tween->initial_value = *subject;
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tween->target_value = target_value;
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tween->subject = subject;
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tween->easing = easing;
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tween->callback = callback;
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driver.menu->numtweens++;
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}
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void update_tweens(float dt)
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{
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unsigned i;
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unsigned active_tweens = 0;
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for(i = 0; i < driver.menu->numtweens; i++)
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{
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tween_t *tween = &driver.menu->tweens[i];
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if (!tween)
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continue;
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if (tween->running_since >= tween->duration)
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continue;
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tween->running_since += dt;
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if (tween->easing)
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*tween->subject = tween->easing(
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tween->running_since,
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tween->initial_value,
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tween->target_value - tween->initial_value,
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tween->duration);
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if (tween->running_since >= tween->duration)
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{
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*tween->subject = tween->target_value;
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if (tween->callback)
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tween->callback();
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}
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if (tween->running_since < tween->duration)
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active_tweens += 1;
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}
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if (!active_tweens)
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driver.menu->numtweens = 0;
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}
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// linear
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float linear(float t, float b, float c, float d)
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{
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return c * t / d + b;
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}
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// quad
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float inQuad(float t, float b, float c, float d)
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{
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return c * pow(t / d, 2) + b;
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}
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float outQuad(float t, float b, float c, float d)
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{
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t = t / d;
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return -c * t * (t - 2) + b;
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}
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float inOutQuad(float t, float b, float c, float d)
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{
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t = t / d * 2;
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if (t < 1)
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return c / 2 * pow(t, 2) + b;
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return -c / 2 * ((t - 1) * (t - 3) - 1) + b;
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}
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float outInQuad(float t, float b, float c, float d)
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{
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if (t < d / 2)
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return outQuad(t * 2, b, c / 2, d);
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return inQuad((t * 2) - d, b + c / 2, c / 2, d);
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}
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// cubic
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float inCubic(float t, float b, float c, float d)
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{
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return c * pow(t / d, 3) + b;
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}
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float outCubic(float t, float b, float c, float d)
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{
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return c * (pow(t / d - 1, 3) + 1) + b;
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}
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float inOutCubic(float t, float b, float c, float d)
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{
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t = t / d * 2;
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if (t < 1)
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return c / 2 * t * t * t + b;
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t = t - 2;
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return c / 2 * (t * t * t + 2) + b;
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}
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float outInCubic(float t, float b, float c, float d)
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{
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if (t < d / 2)
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return outCubic(t * 2, b, c / 2, d);
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return inCubic((t * 2) - d, b + c / 2, c / 2, d);
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}
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// quart
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float inQuart(float t, float b, float c, float d)
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{
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return c * pow(t / d, 4) + b;
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}
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float outQuart(float t, float b, float c, float d)
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{
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return -c * (pow(t / d - 1, 4) - 1) + b;
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}
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float inOutQuart(float t, float b, float c, float d)
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{
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t = t / d * 2;
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if (t < 1)
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return c / 2 * pow(t, 4) + b;
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return -c / 2 * (pow(t - 2, 4) - 2) + b;
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}
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float outInQuart(float t, float b, float c, float d)
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{
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if (t < d / 2)
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return outQuart(t * 2, b, c / 2, d);
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return inQuart((t * 2) - d, b + c / 2, c / 2, d);
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}
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// quint
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float inQuint(float t, float b, float c, float d)
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{
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return c * pow(t / d, 5) + b;
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}
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float outQuint(float t, float b, float c, float d)
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{
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return c * (pow(t / d - 1, 5) + 1) + b;
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}
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float inOutQuint(float t, float b, float c, float d)
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{
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t = t / d * 2;
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if (t < 1)
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return c / 2 * pow(t, 5) + b;
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return c / 2 * (pow(t - 2, 5) + 2) + b;
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}
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float outInQuint(float t, float b, float c, float d)
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{
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if (t < d / 2)
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return outQuint(t * 2, b, c / 2, d);
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return inQuint((t * 2) - d, b + c / 2, c / 2, d);
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}
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// sine
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float inSine(float t, float b, float c, float d)
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{
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return -c * cos(t / d * (M_PI / 2)) + c + b;
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}
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float outSine(float t, float b, float c, float d)
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{
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return c * sin(t / d * (M_PI / 2)) + b;
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}
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float inOutSine(float t, float b, float c, float d)
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{
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return -c / 2 * (cos(M_PI * t / d) - 1) + b;
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}
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float outInSine(float t, float b, float c, float d)
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{
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if (t < d / 2)
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return outSine(t * 2, b, c / 2, d);
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return inSine((t * 2) -d, b + c / 2, c / 2, d);
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}
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// expo
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float inExpo(float t, float b, float c, float d)
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{
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if (t == 0)
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return b;
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return c * powf(2, 10 * (t / d - 1)) + b - c * 0.001;
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}
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float outExpo(float t, float b, float c, float d)
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{
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if (t == d)
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return b + c;
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return c * 1.001 * (-powf(2, -10 * t / d) + 1) + b;
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}
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float inOutExpo(float t, float b, float c, float d)
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{
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if (t == 0)
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return b;
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if (t == d)
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return b + c;
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t = t / d * 2;
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if (t < 1)
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return c / 2 * powf(2, 10 * (t - 1)) + b - c * 0.0005;
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return c / 2 * 1.0005 * (-powf(2, -10 * (t - 1)) + 2) + b;
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}
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float outInExpo(float t, float b, float c, float d)
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{
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if (t < d / 2)
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return outExpo(t * 2, b, c / 2, d);
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return inExpo((t * 2) - d, b + c / 2, c / 2, d);
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}
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// circ
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float inCirc(float t, float b, float c, float d)
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{
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return(-c * (sqrt(1 - powf(t / d, 2)) - 1) + b);
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}
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float outCirc(float t, float b, float c, float d)
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{
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return(c * sqrt(1 - powf(t / d - 1, 2)) + b);
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}
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float inOutCirc(float t, float b, float c, float d)
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{
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t = t / d * 2;
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if (t < 1)
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return -c / 2 * (sqrt(1 - t * t) - 1) + b;
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t = t - 2;
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return c / 2 * (sqrt(1 - t * t) + 1) + b;
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}
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float outInCirc(float t, float b, float c, float d)
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{
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if (t < d / 2)
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return outCirc(t * 2, b, c / 2, d);
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return inCirc((t * 2) - d, b + c / 2, c / 2, d);
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}
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// bounce
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float outBounce(float t, float b, float c, float d)
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{
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t = t / d;
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if (t < 1 / 2.75)
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return c * (7.5625 * t * t) + b;
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if (t < 2 / 2.75)
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{
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t = t - (1.5 / 2.75);
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return c * (7.5625 * t * t + 0.75) + b;
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}
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else if (t < 2.5 / 2.75)
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{
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t = t - (2.25 / 2.75);
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return c * (7.5625 * t * t + 0.9375) + b;
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}
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t = t - (2.625 / 2.75);
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return c * (7.5625 * t * t + 0.984375) + b;
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}
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float inBounce(float t, float b, float c, float d)
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{
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return c - outBounce(d - t, 0, c, d) + b;
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}
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float inOutBounce(float t, float b, float c, float d)
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{
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if (t < d / 2)
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return inBounce(t * 2, 0, c, d) * 0.5 + b;
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return outBounce(t * 2 - d, 0, c, d) * 0.5 + c * .5 + b;
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}
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float outInBounce(float t, float b, float c, float d)
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{
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if (t < d / 2)
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return outBounce(t * 2, b, c / 2, d);
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return inBounce((t * 2) - d, b + c / 2, c / 2, d);
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}
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