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annotate Discovery/Src/motion.c @ 381:695434a6dcf6 MotionDetection

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Simplified pitch detection state machine: Considering a pitch to last 1 to 2 seconds only around 5 to 10 iterations are used. As result the used counters had limits of 1 or 2 => not really needed
author ideenmodellierer
date Thu, 10 Oct 2019 22:11:59 +0200
parents 834e087505ec
children 49a02dea8ae3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * motion.c
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3 *
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4 * Created on: 20.05.2019
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5 * Author: Thorsten Sonntag
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6 */
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7
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8 #include <stdint.h>
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9 #include <string.h>
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10 #include <stdlib.h>
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11 #include <math.h>
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12 #include "motion.h"
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13 #include "data_central.h"
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14 #include "t7.h"
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15 #include "settings.h"
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16
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17 #define STABLE_STATE_COUNT 2 /* number of count to declare a state as stable (at the moment based on 100ms) */
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18 #define STABLE_STATE_TIMEOUT 5 /* Detection shall be aborted if a movement state is stable for more than 500ms */
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19
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20 #define SECTOR_WINDOW 80.0 /* Pitch window which is used for custom view projection */
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21 #define SECTOR_WINDOW_MAX 120.0 /* Pitch window which will be greater than the divers field of view */
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22 #define SECTOR_HYSTERY 3 /* Additional offset to avoid fast changing displays */
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23 #define SECTOR_BORDER 400.0 /* Define a value which is out of limit to avoid not wanted key events */
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24 #define SECTOR_FILTER 10 /* Define speed for calculated angle to follow real value */
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25
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26 #define SECTOR_MAX 30 /* maximum number of sectors */
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27 #define SECTOR_SCROLL 7 /* number of sectors used for scroll detection */
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29 static detectionState_t detectionState = DETECT_NOTHING;
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7b8c87a39c0e Parameter update
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30
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31 uint8_t curSector;
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32 static uint8_t targetSector;
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33 static float sectorSize;
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34 static float sectorwindow;
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35 static uint8_t sectorCount;
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37 static float sector_upperborder;
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38 static float sector_lowerborder;
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41 uint8_t GetSectorForPitch(float pitch)
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42 {
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43 static uint8_t lastsector = 0xFF;
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44 float newPitch;
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45 uint8_t sector = 0;
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47
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48 newPitch = pitch + (sectorwindow / 2.0); /* do not use negativ values */
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49 if (newPitch < 0.0) /* clip value */
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50 {
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51 newPitch = 0.0;
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52 }
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53 if (newPitch > sectorwindow) /* clip value */
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54 {
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55 newPitch = sectorwindow;
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56 }
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57
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58 if(lastsector == 0xFF) /* First call of function => make sure a new sector is set */
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59 {
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60 sector_lowerborder = SECTOR_BORDER;
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61 sector_upperborder = SECTOR_BORDER * -1.0;
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62
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63 }
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64
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65 /* switch to other sector? */
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66 if((newPitch > sector_upperborder) || (newPitch <= sector_lowerborder))
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67 {
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68 sector = (uint16_t) newPitch / sectorSize;
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69 sector_lowerborder = sector * sectorSize - SECTOR_HYSTERY;
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70 sector_upperborder = (sector + 1) * sectorSize + SECTOR_HYSTERY;
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71 lastsector = sector;
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72 }
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73
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74 return lastsector;
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75 }
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76
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77 void DefinePitchSectors(float centerPitch,uint8_t numOfSectors)
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78 {
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79 if(numOfSectors == CUSTOMER_DEFINED_VIEWS)
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80 {
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81 sectorCount = t7_GetEnabled_customviews();
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82 if(sectorCount > 7)
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83 {
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84 sectorCount = 7; /* more views are hard to manually control */
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85 }
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86 }
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87 else
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88 if(numOfSectors != CUSTOMER_KEEP_LAST_SECTORS)
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89 {
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90 sectorCount = numOfSectors;
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91 }
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92
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93 if(sectorCount == SECTOR_MAX)
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94 {
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95 sectorwindow = SECTOR_WINDOW_MAX;
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96 }
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97 else
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98 {
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99 sectorwindow = SECTOR_WINDOW;
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100 }
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101
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102 sectorSize = sectorwindow / sectorCount;
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103
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104 /* get the current sector */
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105 curSector = GetSectorForPitch(stateRealGetPointer()->lifeData.compass_pitch);
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106 targetSector = curSector;
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107 }
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108
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109 void InitMotionDetection(void)
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110 {
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111 targetSector = 0;
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112 curSector = 0;
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113 sectorSize = 0;
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114 sectorCount = 0;
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115
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116 switch(settingsGetPointer()->MotionDetection)
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117 {
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118 case MOTION_DETECT_SECTOR: DefinePitchSectors(0,CUSTOMER_DEFINED_VIEWS);
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119 break;
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120 case MOTION_DETECT_MOVE: DefinePitchSectors(0,SECTOR_MAX);
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121 break;
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122 case MOTION_DETECT_SCROLL: DefinePitchSectors(0,SECTOR_SCROLL);
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123 break;
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124 default:
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125 break;
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126 }
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127
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128 }
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130 /* Map the current pitch value to a sector and create button event in case the sector is left */
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131 detectionState_t detectSectorButtonEvent(float curPitch)
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132 {
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133 static uint8_t lastTargetSector = 0;
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134 uint8_t newTargetSector;
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135 uint8_t PitchEvent = DETECT_NOTHING;
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
parents: 363
diff changeset
136
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
parents: 363
diff changeset
137 /* only change sector if reading is stable */
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
parents: 363
diff changeset
138 newTargetSector = GetSectorForPitch(stateRealGetPointer()->lifeData.compass_pitch);
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
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diff changeset
139 if(lastTargetSector == newTargetSector)
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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parents: 363
diff changeset
140 {
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
parents: 363
diff changeset
141 targetSector = newTargetSector;
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
parents: 363
diff changeset
142 }
381
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
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diff changeset
143 lastTargetSector = newTargetSector;
370
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
parents: 363
diff changeset
144 if(targetSector != curSector)
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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parents: 363
diff changeset
145 {
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
parents: 363
diff changeset
146 if(targetSector > curSector)
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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parents: 363
diff changeset
147 {
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
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diff changeset
148 curSector++;
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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diff changeset
149 PitchEvent = DETECT_POS_PITCH;
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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diff changeset
150 }
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
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diff changeset
151 else
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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parents: 363
diff changeset
152 {
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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diff changeset
153 curSector--;
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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diff changeset
154 PitchEvent = DETECT_NEG_PITCH;
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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diff changeset
155 }
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
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diff changeset
156 }
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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diff changeset
157 return PitchEvent;
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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diff changeset
158 }
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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diff changeset
159
373
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
160 /* Check if pitch is not in center position and trigger a button action if needed */
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diff changeset
161 detectionState_t detectScrollButtonEvent(float curPitch)
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diff changeset
162 {
378
834e087505ec Incremented "idle window" for scroll detection
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diff changeset
163 static uint8_t delayscroll = 0; /* slow down the number of scroll events */
370
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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diff changeset
164
373
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
165 uint8_t PitchEvent = DETECT_NOTHING;
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diff changeset
166 uint8_t newSector;
7b981f8bdd41 Add scroll event by pitch angle detection:
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167
7b981f8bdd41 Add scroll event by pitch angle detection:
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168 if(delayscroll == 0)
7b981f8bdd41 Add scroll event by pitch angle detection:
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169 {
7b981f8bdd41 Add scroll event by pitch angle detection:
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170 newSector = GetSectorForPitch(stateRealGetPointer()->lifeData.compass_pitch);
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171 /* for scroll detection the motion windoe is split into 6 sectors => set event accoring to the sector number*/
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diff changeset
172 switch(newSector)
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173 {
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
174 case 0:
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
175 case 1: PitchEvent = DETECT_POS_PITCH;
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
176 break;
378
834e087505ec Incremented "idle window" for scroll detection
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diff changeset
177 case 5:
834e087505ec Incremented "idle window" for scroll detection
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178 case 6: PitchEvent = DETECT_NEG_PITCH;
373
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
179 break;
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
180 default:
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
181 break;
7b981f8bdd41 Add scroll event by pitch angle detection:
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parents: 371
diff changeset
182 }
7b981f8bdd41 Add scroll event by pitch angle detection:
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183 if(PitchEvent != DETECT_NOTHING)
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
184 {
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
185 delayscroll = 5;
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
186 }
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
187 }
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
188 else
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
189 {
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
190 delayscroll--;
7b981f8bdd41 Add scroll event by pitch angle detection:
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parents: 371
diff changeset
191 }
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
192 return PitchEvent;
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
193 }
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
194
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
195
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
196 uint8_t sectorhist[20];
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
197 uint8_t sectorindex = 0;
370
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
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diff changeset
198 /* Detect if user is generating an pitch including return to starting position */
359
4258ea9b67fa Added new files for motion detection (shaking) detection
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diff changeset
199 /* This is done by feeding the past movements value per value into a state machine */
370
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
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diff changeset
200 detectionState_t detectPitch(float currentPitch)
359
4258ea9b67fa Added new files for motion detection (shaking) detection
ideenmodellierer
parents:
diff changeset
201 {
373
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
202 static uint8_t lastSector = 0;
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
203 static uint8_t startSector = 0;
359
4258ea9b67fa Added new files for motion detection (shaking) detection
ideenmodellierer
parents:
diff changeset
204 static uint8_t stableCnt = 0;
370
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
parents: 363
diff changeset
205
77cdfbdaca8c Changed function names from shake to pitch and improved detection function: Shake might be confusing for people reading the code because pitch values are ased for calculation => changed name to pitch to be more transparent
ideenmodellierer
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diff changeset
206 if((detectionState == DETECT_NEG_PITCH) || (detectionState == DETECT_POS_PITCH)) /* discard last detection */
359
4258ea9b67fa Added new files for motion detection (shaking) detection
ideenmodellierer
parents:
diff changeset
207 {
4258ea9b67fa Added new files for motion detection (shaking) detection
ideenmodellierer
parents:
diff changeset
208 detectionState = DETECT_NOTHING;
4258ea9b67fa Added new files for motion detection (shaking) detection
ideenmodellierer
parents:
diff changeset
209 }
363
bdf978d2a5d4 Reworked detection function
ideenmodellierer
parents: 362
diff changeset
210
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
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diff changeset
211 curSector = GetSectorForPitch(stateRealGetPointer()->lifeData.compass_pitch);
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
212
7b981f8bdd41 Add scroll event by pitch angle detection:
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diff changeset
213 /* feed value into state machine */
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
214 switch (detectionState)
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
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diff changeset
215 {
381
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
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diff changeset
216 case DETECT_NOTHING: if(curSector != lastSector) /* detect a stable condition before evaluating for the next move */
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
217 {
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
218 stableCnt=0;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
219 }
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
220
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
221 if(stableCnt > STABLE_STATE_COUNT)
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
222 {
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
223 detectionState = DETECT_START;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
224 stableCnt = 0;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
225 startSector = lastSector;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
226 }
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
227 break;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
228 case DETECT_START: if(curSector != lastSector)
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
229 {
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
230 if(abs(curSector - startSector) > 1)
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
231 {
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
232 if(curSector > lastSector)
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
233 {
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
234 detectionState = DETECT_POS_MOVE;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
235 }
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
236 else
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
237 {
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
238 detectionState = DETECT_NEG_MOVE;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
239 }
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
240 stableCnt = 0;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
241 startSector = lastSector;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
242 }
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
243 }
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
244 break;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
245 case DETECT_NEG_MOVE:
381
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
246 case DETECT_POS_MOVE: if(curSector == lastSector) /* Moved to a max? */
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
247 {
378
834e087505ec Incremented "idle window" for scroll detection
ideenmodellierer
parents: 373
diff changeset
248 if(abs(startSector - curSector) > 2)
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
249 {
378
834e087505ec Incremented "idle window" for scroll detection
ideenmodellierer
parents: 373
diff changeset
250 detectionState++;
834e087505ec Incremented "idle window" for scroll detection
ideenmodellierer
parents: 373
diff changeset
251 stableCnt = 0;
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
252 }
381
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
253 if(stableCnt > 2)
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
254 {
381
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
255 detectionState = DETECT_NOTHING;
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
256 stableCnt = 0;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
257 }
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
258 }
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
259 break;
381
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
260 case DETECT_MAXIMA:
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
261 case DETECT_MINIMA: if(curSector != lastSector) /* reset timeout detection */
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
262 {
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
263 detectionState++;
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
264 stableCnt = 0;
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
265 }
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
266 break;
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
267 case DETECT_RISEBACK:
381
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
268 case DETECT_FALLBACK:
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
269 if(curSector == lastSector) /* check if we are back at start position at end of movement */
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
270 {
381
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
271 if(abs(startSector - curSector) <= 1)
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
272 {
381
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
273 if(stableCnt > 2)
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
274 {
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
275 detectionState++;
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
276 stableCnt = 0;
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
277 }
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
278 }
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
279 }
381
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
280 break;
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
281 default:
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
282 detectionState = DETECT_NOTHING;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
283 break;
381
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
284 }
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
285 if(detectionState != DETECT_START)
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
286 {
695434a6dcf6 Simplified pitch detection state machine:
ideenmodellierer
parents: 378
diff changeset
287 stableCnt++;
373
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
288 }
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
289 lastSector = curSector;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
290 if(stableCnt > STABLE_STATE_TIMEOUT)
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
291 {
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
292 detectionState = DETECT_NOTHING;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
293 stableCnt = 0;
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
294 }
7b981f8bdd41 Add scroll event by pitch angle detection:
ideenmodellierer
parents: 371
diff changeset
295
359
4258ea9b67fa Added new files for motion detection (shaking) detection
ideenmodellierer
parents:
diff changeset
296 return detectionState;
4258ea9b67fa Added new files for motion detection (shaking) detection
ideenmodellierer
parents:
diff changeset
297 }