From d05eefaf7f10769ddae3840890af6a1e52440238 Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Thu, 11 Mar 2021 02:56:59 +0100
Subject: vitrual tracking fixed

---
 fw/fe310/eos/eve/eve_track.c | 77 --------------------------------------------
 1 file changed, 77 deletions(-)
 delete mode 100644 fw/fe310/eos/eve/eve_track.c

(limited to 'fw/fe310/eos/eve/eve_track.c')

diff --git a/fw/fe310/eos/eve/eve_track.c b/fw/fe310/eos/eve/eve_track.c
deleted file mode 100644
index 97ef72b..0000000
--- a/fw/fe310/eos/eve/eve_track.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#include <stdlib.h>
-#include <math.h>
-
-#include "eve.h"
-
-void eve_track_init(void) {
-    eve_etrack_set(eve_track_inert_init, eve_track_inert_tick, NULL, NULL);
-}
-
-void eve_track_set(uint8_t type, void *param) {
-    switch (type) {
-        case EVE_TRACK_TYPE_INERT:
-            eve_etrack_set(eve_track_inert_init, eve_track_inert_tick, NULL, NULL);
-            break;
-        case EVE_TRACK_TYPE_OSC:
-            eve_etrack_set(NULL, eve_track_osc_tick, NULL, param);
-            break;
-        default:
-            break;
-    }
-}
-
-void eve_track_inert_init(EVETouchTimer *timer, EVETouch *touch) {
-    double d = sqrt(touch->vx * touch->vx + touch->vy * touch->vy);
-    int fc = (double)(EVE_RTC_FREQ) * d / EVE_TRACK_FRICTION;
-
-    timer->p = (void *)fc;
-}
-
-int eve_track_inert_tick(EVETouchTimer *timer, EVETouch *touch) {
-    int dt = eve_time_get_tick() - touch->t;
-    int fc = (int)timer->p;
-    int more = 1;
-
-    if (dt >= fc / 2) {
-        dt = fc / 2;
-        more = 0;
-    }
-    touch->x = timer->x0 + (touch->vx * dt - touch->vx * dt / fc * dt) / (int)(EVE_RTC_FREQ);
-    touch->y = timer->y0 + (touch->vy * dt - touch->vy * dt / fc * dt) / (int)(EVE_RTC_FREQ);
-    return more;
-}
-
-void eve_track_osc_init(EVETrackOsc *p, int x, int y, uint32_t T, double d, uint32_t t_max) {
-    double f0 = 2 * M_PI / (T * EVE_RTC_FREQ / 1000);
-
-    if (d < 0) d = 0;
-    if (d > 1) d = 1;
-    p->x = x;
-    p->y = y;
-    p->f = d ? f0 * sqrt(1 - d * d) : f0;
-    p->d = d;
-    p->a = -d * f0;
-    p->t_max = t_max;
-}
-
-int eve_track_osc_tick(EVETouchTimer *timer, EVETouch *touch) {
-    EVETrackOsc *p = (EVETrackOsc *)timer->p;
-    int dt = eve_time_get_tick() - touch->t;
-    int ax = timer->x0 - p->x;
-    int ay = timer->y0 - p->y;
-    int more = 1;
-
-    if (p->t_max && (dt >= p->t_max)) {
-        dt = p->t_max;
-        more = 0;
-    }
-    if (p->d) {
-        double e = exp(p->a * dt);
-        ax = ax * e;
-        ay = ay * e;
-        if ((ax == 0) && (ay == 0)) more = 0;
-    }
-    touch->x = p->x + ax * cos(p->f * dt);
-    touch->y = p->y + ay * cos(p->f * dt);
-    return more;
-}
-- 
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