Pujun Bhatnagar / Mbed 2 deprecated SnakeGame

3-D snake game for the mbed application board.

Dependencies:   C12832 MMA7660 mbed

C12832/TextDisplay.cpp@0:8b08136c5edd, 2014-03-24 (annotated)

Committer:
pbhatnagar3
Date:
Mon Mar 24 17:48:19 2014 +0000
Revision:
0:8b08136c5edd
3-D snake game for the mbed application board.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pbhatnagar3 0:8b08136c5edd 1 /* mbed TextDisplay Display Library Base Class
pbhatnagar3 0:8b08136c5edd 2 * Copyright (c) 2007-2009 sford
pbhatnagar3 0:8b08136c5edd 3 * Released under the MIT License: http://mbed.org/license/mit
pbhatnagar3 0:8b08136c5edd 4 */
pbhatnagar3 0:8b08136c5edd 5
pbhatnagar3 0:8b08136c5edd 6 #include "TextDisplay.h"
pbhatnagar3 0:8b08136c5edd 7
pbhatnagar3 0:8b08136c5edd 8 TextDisplay::TextDisplay(const char *name) : Stream(name){
pbhatnagar3 0:8b08136c5edd 9 _row = 0;
pbhatnagar3 0:8b08136c5edd 10 _column = 0;
pbhatnagar3 0:8b08136c5edd 11 if (name == NULL) {
pbhatnagar3 0:8b08136c5edd 12 _path = NULL;
pbhatnagar3 0:8b08136c5edd 13 } else {
pbhatnagar3 0:8b08136c5edd 14 _path = new char[strlen(name) + 2];
pbhatnagar3 0:8b08136c5edd 15 sprintf(_path, "/%s", name);
pbhatnagar3 0:8b08136c5edd 16 }
pbhatnagar3 0:8b08136c5edd 17 }
pbhatnagar3 0:8b08136c5edd 18
pbhatnagar3 0:8b08136c5edd 19 int TextDisplay::_putc(int value) {
pbhatnagar3 0:8b08136c5edd 20 if(value == '\n') {
pbhatnagar3 0:8b08136c5edd 21 _column = 0;
pbhatnagar3 0:8b08136c5edd 22 _row++;
pbhatnagar3 0:8b08136c5edd 23 if(_row >= rows()) {
pbhatnagar3 0:8b08136c5edd 24 _row = 0;
pbhatnagar3 0:8b08136c5edd 25 }
pbhatnagar3 0:8b08136c5edd 26 } else {
pbhatnagar3 0:8b08136c5edd 27 character(_column, _row, value);
pbhatnagar3 0:8b08136c5edd 28 _column++;
pbhatnagar3 0:8b08136c5edd 29 if(_column >= columns()) {
pbhatnagar3 0:8b08136c5edd 30 _column = 0;
pbhatnagar3 0:8b08136c5edd 31 _row++;
pbhatnagar3 0:8b08136c5edd 32 if(_row >= rows()) {
pbhatnagar3 0:8b08136c5edd 33 _row = 0;
pbhatnagar3 0:8b08136c5edd 34 }
pbhatnagar3 0:8b08136c5edd 35 }
pbhatnagar3 0:8b08136c5edd 36 }
pbhatnagar3 0:8b08136c5edd 37 return value;
pbhatnagar3 0:8b08136c5edd 38 }
pbhatnagar3 0:8b08136c5edd 39
pbhatnagar3 0:8b08136c5edd 40 // crude cls implementation, should generally be overwritten in derived class
pbhatnagar3 0:8b08136c5edd 41 void TextDisplay::cls() {
pbhatnagar3 0:8b08136c5edd 42 locate(0, 0);
pbhatnagar3 0:8b08136c5edd 43 for(int i=0; i<columns()*rows(); i++) {
pbhatnagar3 0:8b08136c5edd 44 putc(' ');
pbhatnagar3 0:8b08136c5edd 45 }
pbhatnagar3 0:8b08136c5edd 46 }
pbhatnagar3 0:8b08136c5edd 47
pbhatnagar3 0:8b08136c5edd 48 void TextDisplay::locate(int column, int row) {
pbhatnagar3 0:8b08136c5edd 49 _column = column;
pbhatnagar3 0:8b08136c5edd 50 _row = row;
pbhatnagar3 0:8b08136c5edd 51 }
pbhatnagar3 0:8b08136c5edd 52
pbhatnagar3 0:8b08136c5edd 53 int TextDisplay::_getc() {
pbhatnagar3 0:8b08136c5edd 54 return -1;
pbhatnagar3 0:8b08136c5edd 55 }
pbhatnagar3 0:8b08136c5edd 56
pbhatnagar3 0:8b08136c5edd 57 void TextDisplay::foreground(uint16_t colour) {
pbhatnagar3 0:8b08136c5edd 58 _foreground = colour;
pbhatnagar3 0:8b08136c5edd 59 }
pbhatnagar3 0:8b08136c5edd 60
pbhatnagar3 0:8b08136c5edd 61 void TextDisplay::background(uint16_t colour) {
pbhatnagar3 0:8b08136c5edd 62 _background = colour;
pbhatnagar3 0:8b08136c5edd 63 }
pbhatnagar3 0:8b08136c5edd 64
pbhatnagar3 0:8b08136c5edd 65 bool TextDisplay::claim (FILE *stream) {
pbhatnagar3 0:8b08136c5edd 66 if ( _path == NULL) {
pbhatnagar3 0:8b08136c5edd 67 fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
pbhatnagar3 0:8b08136c5edd 68 return false;
pbhatnagar3 0:8b08136c5edd 69 }
pbhatnagar3 0:8b08136c5edd 70 if (freopen(_path, "w", stream) == NULL) {
pbhatnagar3 0:8b08136c5edd 71 // Failed, should not happen
pbhatnagar3 0:8b08136c5edd 72 return false;
pbhatnagar3 0:8b08136c5edd 73 }
pbhatnagar3 0:8b08136c5edd 74 // make sure we use line buffering
pbhatnagar3 0:8b08136c5edd 75 setvbuf(stdout, NULL, _IOLBF, columns());
pbhatnagar3 0:8b08136c5edd 76 return true;
pbhatnagar3 0:8b08136c5edd 77 }