wave.h

00001 int wave_time;
00002 char ledtable_wave [16] [32];
00003 char wave_val;
00004 
00005 /*************************************************************************
00006 Function Headers
00007 **************************************************************************/
00008 void wave_init(void);
00009 void wave_update(void);
00010 
00011 void wave_init(void){
00012     wave_time = tabletimer.read_ms();
00013     wave_val = 7;
00014     
00015 }
00016 
00017 void wave_update(void){
00018     int wave_move;
00019     if((tabletimer.read_ms() - wave_time)>wave_update_time){
00020         // Update the matrix mapping
00021         
00022         // Shift values right
00023         for(int col = 31; col >0; col--){
00024             ledtable_wave[0][col] = ledtable[0][col-1];
00025             ledtable_wave[1][col] = ledtable[1][col-1];
00026             ledtable_wave[2][col] = ledtable[2][col-1];
00027             ledtable_wave[3][col] = ledtable[3][col-1];
00028             ledtable_wave[4][col] = ledtable[4][col-1];
00029             ledtable_wave[5][col] = ledtable[5][col-1];
00030             ledtable_wave[6][col] = ledtable[6][col-1];
00031             ledtable_wave[7][col] = ledtable[7][col-1];
00032             ledtable_wave[8][col] = ledtable[8][col-1];
00033             ledtable_wave[9][col] = ledtable[9][col-1];
00034             ledtable_wave[10][col] = ledtable[10][col-1];
00035             ledtable_wave[11][col] = ledtable[11][col-1];
00036             ledtable_wave[12][col] = ledtable[12][col-1];
00037             ledtable_wave[13][col] = ledtable[13][col-1];
00038             ledtable_wave[14][col] = ledtable[14][col-1];
00039             ledtable_wave[15][col] = ledtable[15][col-1]; 
00040         }
00041         // Update first column
00042         if(wave_val == 15){
00043             wave_move = rand()%2;
00044         }
00045         else if(wave_val == 0){
00046             wave_move = (rand()%2)+1;
00047         }
00048         else{   
00049             wave_move = rand()%3;
00050         }
00051         switch(wave_move){
00052             case 0:
00053                 // Move wave down
00054                 wave_val -= 1;
00055                 break;
00056             case 1:
00057                 // Keep wave the same
00058                 break;
00059             case 2:
00060                 // Move wave up
00061                 wave_val += 1;
00062             default:
00063                 break;
00064         } 
00065         
00066         for(int wave = 0; wave < 16; wave ++){
00067             if(wave < wave_val){
00068                 ledtable_wave[wave][0] = 60;
00069             }
00070             else{
00071                 ledtable_wave[wave][0] = 0;
00072             }
00073         }
00074         
00075         // Update table
00076         for(int i = 0; i <16; i++){
00077             for(int j = 0; j <32; j++){
00078                 ledtable[i][j] = ledtable_wave[i][j];
00079             }
00080         }
00081         wave_time = tabletimer.read_ms();
00082     }
00083 }