Dominic Kay / Display

This class encapsulates all the algorithms required for the displaying strings and time dependent patterns on the lcd.

Dependents:   200943412_QuickClick

Display.cpp@5:f8df5fe3dc6c, 2017-04-12 (annotated)

Committer:
domkay97
Date:
Wed Apr 12 13:25:04 2017 +0000
Revision:
5:f8df5fe3dc6c
Parent:
4:b74041216336
Child:
6:8840d7e48ce7
Adjusted instruction position

Who changed what in which revision?

UserRevisionLine numberNew contents of line
domkay97 0:dd78eca4b004 1 #include "Display.h"
domkay97 0:dd78eca4b004 2 #include "N5110.h"
domkay97 1:41a1c20a2056 3 #include "Gamepad.h"
domkay97 1:41a1c20a2056 4 #include <math.h>
domkay97 0:dd78eca4b004 5
domkay97 0:dd78eca4b004 6 Display::Display()
domkay97 0:dd78eca4b004 7 {
domkay97 0:dd78eca4b004 8 _h = 0;
domkay97 2:f0ecd70c9ea2 9 _w = 0.4;
domkay97 0:dd78eca4b004 10 _a = 0;
domkay97 1:41a1c20a2056 11 _A = 0;
domkay97 1:41a1c20a2056 12 _v = 0;
domkay97 1:41a1c20a2056 13 x = 0;
domkay97 1:41a1c20a2056 14 y = 0;
domkay97 1:41a1c20a2056 15 x0 = 0;
domkay97 1:41a1c20a2056 16 y0 = 0;
domkay97 0:dd78eca4b004 17 }
domkay97 0:dd78eca4b004 18
domkay97 0:dd78eca4b004 19 Display::~Display()
domkay97 0:dd78eca4b004 20 {
domkay97 0:dd78eca4b004 21
domkay97 0:dd78eca4b004 22 }
domkay97 0:dd78eca4b004 23 void Display::init()
domkay97 0:dd78eca4b004 24 {
domkay97 0:dd78eca4b004 25
domkay97 0:dd78eca4b004 26 _h = 0;
domkay97 2:f0ecd70c9ea2 27 _w = 0.4;
domkay97 0:dd78eca4b004 28 _a = 0;
domkay97 1:41a1c20a2056 29 _A = 0;
domkay97 1:41a1c20a2056 30 _v = 0;
domkay97 1:41a1c20a2056 31 x = 0;
domkay97 1:41a1c20a2056 32 y = 0;
domkay97 1:41a1c20a2056 33 x0 = 0;
domkay97 1:41a1c20a2056 34 y0 = 0;
domkay97 0:dd78eca4b004 35 }
domkay97 0:dd78eca4b004 36
domkay97 0:dd78eca4b004 37 void Display::drawCircle(N5110 &lcd)
domkay97 1:41a1c20a2056 38 {
domkay97 2:f0ecd70c9ea2 39 lcd.clear();
domkay97 1:41a1c20a2056 40 random_instruction(lcd);
domkay97 2:f0ecd70c9ea2 41 Circle(lcd);
domkay97 2:f0ecd70c9ea2 42 calculateWait();
domkay97 2:f0ecd70c9ea2 43 _h++;
domkay97 2:f0ecd70c9ea2 44 lcd.clear();
domkay97 2:f0ecd70c9ea2 45 lcd.refresh();
domkay97 0:dd78eca4b004 46 }
domkay97 0:dd78eca4b004 47
domkay97 4:b74041216336 48 int Display::calculateWait()
domkay97 0:dd78eca4b004 49 {
domkay97 2:f0ecd70c9ea2 50 _w = 0.4*exp(-0.03465*_h);
domkay97 4:b74041216336 51
domkay97 4:b74041216336 52 return _v;
domkay97 1:41a1c20a2056 53 }
domkay97 2:f0ecd70c9ea2 54
domkay97 1:41a1c20a2056 55 void Display::random_instruction(N5110 &lcd) {
domkay97 1:41a1c20a2056 56 _v = rand() % 4 + 1;
domkay97 1:41a1c20a2056 57 if (_v == 1){
domkay97 5:f8df5fe3dc6c 58 lcd.printChar('A',40,2); }
domkay97 1:41a1c20a2056 59 else if (_v == 2){
domkay97 5:f8df5fe3dc6c 60 lcd.printChar('B',40,2); }
domkay97 4:b74041216336 61 else if (_v == 3){
domkay97 5:f8df5fe3dc6c 62 lcd.printChar('X',40,2); }
domkay97 4:b74041216336 63 else {
domkay97 5:f8df5fe3dc6c 64 lcd.printChar('Y',40,2); }
domkay97 1:41a1c20a2056 65 lcd.refresh();
domkay97 1:41a1c20a2056 66 }
domkay97 1:41a1c20a2056 67
domkay97 1:41a1c20a2056 68 // function to draw circle
domkay97 1:41a1c20a2056 69 void Display::Circle(N5110 &lcd)
domkay97 1:41a1c20a2056 70 {
domkay97 1:41a1c20a2056 71 // from http://en.wikipedia.org/wiki/Midpoint_circle_algorithm
domkay97 1:41a1c20a2056 72
domkay97 1:41a1c20a2056 73
domkay97 1:41a1c20a2056 74
domkay97 1:41a1c20a2056 75 for (int a = 0; a < 8; ++a)
domkay97 1:41a1c20a2056 76 {
domkay97 1:41a1c20a2056 77 Drawarc(lcd, a);
domkay97 1:41a1c20a2056 78 lcd.refresh();
domkay97 2:f0ecd70c9ea2 79 lcd.setBrightness(1.0);
domkay97 2:f0ecd70c9ea2 80 wait(_w);
domkay97 2:f0ecd70c9ea2 81 lcd.setBrightness(0.0);
domkay97 2:f0ecd70c9ea2 82 wait(_w);
domkay97 2:f0ecd70c9ea2 83 }
domkay97 0:dd78eca4b004 84
domkay97 1:41a1c20a2056 85 }
domkay97 1:41a1c20a2056 86
domkay97 1:41a1c20a2056 87 void Display::Drawarc(N5110 &lcd, int a) {
domkay97 1:41a1c20a2056 88 x = 20;
domkay97 1:41a1c20a2056 89 y = 0;
domkay97 1:41a1c20a2056 90
domkay97 1:41a1c20a2056 91 int a1;
domkay97 1:41a1c20a2056 92 int b1;
domkay97 1:41a1c20a2056 93 radiusError = 1-x;
domkay97 1:41a1c20a2056 94 x0 = 42;
domkay97 1:41a1c20a2056 95 y0 = 24;
domkay97 0:dd78eca4b004 96
domkay97 1:41a1c20a2056 97 while(x >= y) {
domkay97 1:41a1c20a2056 98 // if transparent, just draw outline
domkay97 1:41a1c20a2056 99 switch(a) {
domkay97 1:41a1c20a2056 100 case 0 : {a1 = y;
domkay97 1:41a1c20a2056 101 b1 = x * -1;
domkay97 1:41a1c20a2056 102 break;
domkay97 1:41a1c20a2056 103 }
domkay97 1:41a1c20a2056 104 case 1 : {a1 = x;
domkay97 1:41a1c20a2056 105 b1 = y * -1;
domkay97 1:41a1c20a2056 106 break;
domkay97 1:41a1c20a2056 107 }
domkay97 1:41a1c20a2056 108 case 2 : {a1 = x;
domkay97 1:41a1c20a2056 109 b1 = y;
domkay97 1:41a1c20a2056 110 break;
domkay97 1:41a1c20a2056 111 }
domkay97 1:41a1c20a2056 112 case 3 : {a1 = y;
domkay97 1:41a1c20a2056 113 b1 = x;
domkay97 1:41a1c20a2056 114 break;
domkay97 1:41a1c20a2056 115 }
domkay97 1:41a1c20a2056 116 case 4 : {a1 = y * -1;
domkay97 1:41a1c20a2056 117 b1 = x;
domkay97 1:41a1c20a2056 118 break;
domkay97 1:41a1c20a2056 119 }
domkay97 1:41a1c20a2056 120 case 5 : {a1 = x * -1;
domkay97 1:41a1c20a2056 121 b1 = y;
domkay97 1:41a1c20a2056 122 break;
domkay97 1:41a1c20a2056 123 }
domkay97 1:41a1c20a2056 124 case 6 : {a1 = x * -1;
domkay97 1:41a1c20a2056 125 b1 = y * -1;
domkay97 1:41a1c20a2056 126 break;
domkay97 1:41a1c20a2056 127 }
domkay97 1:41a1c20a2056 128 case 7 : {a1 = y * -1;
domkay97 1:41a1c20a2056 129 b1 = x * -1;
domkay97 1:41a1c20a2056 130 break;
domkay97 1:41a1c20a2056 131 }
domkay97 1:41a1c20a2056 132 default : { a1 = x;
domkay97 1:41a1c20a2056 133 b1 = y * -1;
domkay97 1:41a1c20a2056 134 break;
domkay97 1:41a1c20a2056 135 }
domkay97 1:41a1c20a2056 136 }
domkay97 1:41a1c20a2056 137
domkay97 1:41a1c20a2056 138
domkay97 1:41a1c20a2056 139
domkay97 1:41a1c20a2056 140 lcd.setPixel( a1 + x0, b1 + y0);
domkay97 1:41a1c20a2056 141
domkay97 1:41a1c20a2056 142 // lcd.setPixel(-x + x0, y + y0);
domkay97 1:41a1c20a2056 143 // lcd.setPixel( y + x0, x + y0);
domkay97 1:41a1c20a2056 144 // lcd.setPixel(-y + x0, x + y0);
domkay97 1:41a1c20a2056 145 // lcd.setPixel(-y + x0, -x + y0);
domkay97 1:41a1c20a2056 146 // lcd.setPixel( y + x0, -x + y0);
domkay97 1:41a1c20a2056 147 // lcd.setPixel( x + x0, -y + y0);
domkay97 1:41a1c20a2056 148 /// lcd.setPixel(-x + x0, -y + y0);
domkay97 1:41a1c20a2056 149
domkay97 1:41a1c20a2056 150
domkay97 1:41a1c20a2056 151
domkay97 1:41a1c20a2056 152 y++;
domkay97 1:41a1c20a2056 153
domkay97 1:41a1c20a2056 154
domkay97 1:41a1c20a2056 155 if (radiusError<0) {
domkay97 1:41a1c20a2056 156 radiusError += 2 * y + 1;
domkay97 1:41a1c20a2056 157 } else {
domkay97 1:41a1c20a2056 158 x--;
domkay97 1:41a1c20a2056 159 radiusError += 2 * (y - x) + 1;
domkay97 1:41a1c20a2056 160 }
domkay97 1:41a1c20a2056 161
domkay97 1:41a1c20a2056 162 }
domkay97 1:41a1c20a2056 163 }