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@1:41a1c20a2056, 2017-04-10 (annotated)

Committer:
domkay97
Date:
Mon Apr 10 20:10:26 2017 +0000
Revision:
1:41a1c20a2056
Parent:
0:dd78eca4b004
Child:
2:f0ecd70c9ea2
draw circle

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 0:dd78eca4b004 9 _w = 0.1;
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 //InterruptIn button_X(SW3);
domkay97 0:dd78eca4b004 27 //olatile int g_timer_flag = 0;
domkay97 0:dd78eca4b004 28 // volatile int X_flag = 0;
domkay97 0:dd78eca4b004 29 // button_X.fall(&X_isr);
domkay97 0:dd78eca4b004 30 // button_X.mode(PullNone);
domkay97 0:dd78eca4b004 31 _h = 0;
domkay97 0:dd78eca4b004 32 _w = 0.1;
domkay97 0:dd78eca4b004 33 _a = 0;
domkay97 1:41a1c20a2056 34 _A = 0;
domkay97 1:41a1c20a2056 35 _v = 0;
domkay97 1:41a1c20a2056 36 x = 0;
domkay97 1:41a1c20a2056 37 y = 0;
domkay97 1:41a1c20a2056 38 x0 = 0;
domkay97 1:41a1c20a2056 39 y0 = 0;
domkay97 0:dd78eca4b004 40 }
domkay97 0:dd78eca4b004 41
domkay97 0:dd78eca4b004 42 void Display::drawCircle(N5110 &lcd)
domkay97 1:41a1c20a2056 43 {
domkay97 1:41a1c20a2056 44 Circle(lcd);
domkay97 1:41a1c20a2056 45 random_instruction(lcd);
domkay97 0:dd78eca4b004 46 for( int _A = 0; _A < 84; _A++ ) {
domkay97 0:dd78eca4b004 47 _a = _A;
domkay97 0:dd78eca4b004 48
domkay97 0:dd78eca4b004 49 wait(_w);
domkay97 0:dd78eca4b004 50 lcd.refresh();
domkay97 0:dd78eca4b004 51 lcd.setPixel(_a,22);
domkay97 0:dd78eca4b004 52 lcd.setPixel(_a,23);
domkay97 0:dd78eca4b004 53 lcd.setPixel(_a,24);
domkay97 0:dd78eca4b004 54 lcd.setPixel(_a,25);
domkay97 0:dd78eca4b004 55 lcd.setPixel(_a,26);
domkay97 0:dd78eca4b004 56 }
domkay97 0:dd78eca4b004 57 calculateWait();
domkay97 0:dd78eca4b004 58 _h++;
domkay97 1:41a1c20a2056 59 lcd.clear();
domkay97 0:dd78eca4b004 60 }
domkay97 0:dd78eca4b004 61
domkay97 0:dd78eca4b004 62 void Display::calculateWait()
domkay97 0:dd78eca4b004 63 {
domkay97 1:41a1c20a2056 64 _w = 0.05*exp(-0.03465*_h);
domkay97 1:41a1c20a2056 65 }
domkay97 1:41a1c20a2056 66 // if (_h < 10) {
domkay97 1:41a1c20a2056 67 // _w = _w - _w/10; }
domkay97 1:41a1c20a2056 68 //else if (_h < 20) {
domkay97 1:41a1c20a2056 69 // _w = _w - _w/20; }
domkay97 1:41a1c20a2056 70 //else if (_h < 30) {
domkay97 1:41a1c20a2056 71 // _w = _w - _w/30; }
domkay97 1:41a1c20a2056 72 //else
domkay97 1:41a1c20a2056 73 // { _w = _w - _w/40; }
domkay97 1:41a1c20a2056 74 //}
domkay97 1:41a1c20a2056 75 void Display::random_instruction(N5110 &lcd) {
domkay97 1:41a1c20a2056 76 _v = rand() % 4 + 1;
domkay97 1:41a1c20a2056 77 if (_v == 1){
domkay97 1:41a1c20a2056 78 lcd.printChar('A',45,2); }
domkay97 1:41a1c20a2056 79 else if (_v == 2){
domkay97 1:41a1c20a2056 80 lcd.printChar('X',45,2); }
domkay97 1:41a1c20a2056 81 else if (_v == 3){
domkay97 1:41a1c20a2056 82 lcd.printChar('Y',45,2); }
domkay97 1:41a1c20a2056 83 else {
domkay97 1:41a1c20a2056 84 lcd.printChar('B',45,2); }
domkay97 1:41a1c20a2056 85 lcd.refresh();
domkay97 1:41a1c20a2056 86 }
domkay97 1:41a1c20a2056 87
domkay97 1:41a1c20a2056 88 // function to draw circle
domkay97 1:41a1c20a2056 89 void Display::Circle(N5110 &lcd)
domkay97 1:41a1c20a2056 90 {
domkay97 1:41a1c20a2056 91 // from http://en.wikipedia.org/wiki/Midpoint_circle_algorithm
domkay97 1:41a1c20a2056 92
domkay97 1:41a1c20a2056 93
domkay97 1:41a1c20a2056 94
domkay97 1:41a1c20a2056 95 for (int a = 0; a < 8; ++a)
domkay97 1:41a1c20a2056 96 {
domkay97 1:41a1c20a2056 97 Drawarc(lcd, a);
domkay97 1:41a1c20a2056 98
domkay97 1:41a1c20a2056 99 lcd.refresh();
domkay97 1:41a1c20a2056 100
domkay97 1:41a1c20a2056 101
domkay97 1:41a1c20a2056 102 wait(1); }
domkay97 0:dd78eca4b004 103
domkay97 1:41a1c20a2056 104 }
domkay97 1:41a1c20a2056 105
domkay97 1:41a1c20a2056 106 void Display::Drawarc(N5110 &lcd, int a) {
domkay97 1:41a1c20a2056 107 x = 20;
domkay97 1:41a1c20a2056 108 y = 0;
domkay97 1:41a1c20a2056 109
domkay97 1:41a1c20a2056 110 int a1;
domkay97 1:41a1c20a2056 111 int b1;
domkay97 1:41a1c20a2056 112 radiusError = 1-x;
domkay97 1:41a1c20a2056 113 x0 = 42;
domkay97 1:41a1c20a2056 114 y0 = 24;
domkay97 0:dd78eca4b004 115
domkay97 1:41a1c20a2056 116 while(x >= y) {
domkay97 1:41a1c20a2056 117 // if transparent, just draw outline
domkay97 1:41a1c20a2056 118 switch(a) {
domkay97 1:41a1c20a2056 119 case 0 : {a1 = y;
domkay97 1:41a1c20a2056 120 b1 = x * -1;
domkay97 1:41a1c20a2056 121 break;
domkay97 1:41a1c20a2056 122 }
domkay97 1:41a1c20a2056 123 case 1 : {a1 = x;
domkay97 1:41a1c20a2056 124 b1 = y * -1;
domkay97 1:41a1c20a2056 125 break;
domkay97 1:41a1c20a2056 126 }
domkay97 1:41a1c20a2056 127 case 2 : {a1 = x;
domkay97 1:41a1c20a2056 128 b1 = y;
domkay97 1:41a1c20a2056 129 break;
domkay97 1:41a1c20a2056 130 }
domkay97 1:41a1c20a2056 131 case 3 : {a1 = y;
domkay97 1:41a1c20a2056 132 b1 = x;
domkay97 1:41a1c20a2056 133 break;
domkay97 1:41a1c20a2056 134 }
domkay97 1:41a1c20a2056 135 case 4 : {a1 = y * -1;
domkay97 1:41a1c20a2056 136 b1 = x;
domkay97 1:41a1c20a2056 137 break;
domkay97 1:41a1c20a2056 138 }
domkay97 1:41a1c20a2056 139 case 5 : {a1 = x * -1;
domkay97 1:41a1c20a2056 140 b1 = y;
domkay97 1:41a1c20a2056 141 break;
domkay97 1:41a1c20a2056 142 }
domkay97 1:41a1c20a2056 143 case 6 : {a1 = x * -1;
domkay97 1:41a1c20a2056 144 b1 = y * -1;
domkay97 1:41a1c20a2056 145 break;
domkay97 1:41a1c20a2056 146 }
domkay97 1:41a1c20a2056 147 case 7 : {a1 = y * -1;
domkay97 1:41a1c20a2056 148 b1 = x * -1;
domkay97 1:41a1c20a2056 149 break;
domkay97 1:41a1c20a2056 150 }
domkay97 1:41a1c20a2056 151 default : { a1 = x;
domkay97 1:41a1c20a2056 152 b1 = y * -1;
domkay97 1:41a1c20a2056 153 break;
domkay97 1:41a1c20a2056 154 }
domkay97 1:41a1c20a2056 155 }
domkay97 1:41a1c20a2056 156
domkay97 1:41a1c20a2056 157
domkay97 1:41a1c20a2056 158
domkay97 1:41a1c20a2056 159 lcd.setPixel( a1 + x0, b1 + y0);
domkay97 1:41a1c20a2056 160
domkay97 1:41a1c20a2056 161 // lcd.setPixel(-x + x0, y + y0);
domkay97 1:41a1c20a2056 162 // lcd.setPixel( y + x0, x + y0);
domkay97 1:41a1c20a2056 163 // lcd.setPixel(-y + x0, x + y0);
domkay97 1:41a1c20a2056 164 // lcd.setPixel(-y + x0, -x + y0);
domkay97 1:41a1c20a2056 165 // lcd.setPixel( y + x0, -x + y0);
domkay97 1:41a1c20a2056 166 // lcd.setPixel( x + x0, -y + y0);
domkay97 1:41a1c20a2056 167 /// lcd.setPixel(-x + x0, -y + y0);
domkay97 1:41a1c20a2056 168
domkay97 1:41a1c20a2056 169
domkay97 1:41a1c20a2056 170
domkay97 1:41a1c20a2056 171 y++;
domkay97 1:41a1c20a2056 172
domkay97 1:41a1c20a2056 173
domkay97 1:41a1c20a2056 174 if (radiusError<0) {
domkay97 1:41a1c20a2056 175 radiusError += 2 * y + 1;
domkay97 1:41a1c20a2056 176 } else {
domkay97 1:41a1c20a2056 177 x--;
domkay97 1:41a1c20a2056 178 radiusError += 2 * (y - x) + 1;
domkay97 1:41a1c20a2056 179 }
domkay97 1:41a1c20a2056 180
domkay97 1:41a1c20a2056 181 }
domkay97 1:41a1c20a2056 182 }