346 lines
7.1 KiB
C++
346 lines
7.1 KiB
C++
/*
|
|
* Low level code for cube led 8x8x8
|
|
* By Gnieark https://blog-du-grouik.tinad.fr February 2016
|
|
* GNU GPL V2
|
|
*/
|
|
|
|
|
|
//************** Low level functions *********************
|
|
#define pinOE 11
|
|
boolean cube[8][8][8];
|
|
|
|
const int layersPins[]={A0,A1,A2,A3,A4,A5,12,13};
|
|
const int busPins[]={0,1,2,3,4,5,6,7};
|
|
|
|
// IC Pins are "hard coded". here just for info,
|
|
const int ICPins[]={8,9,10};
|
|
// If you change IC pin configuration,
|
|
// You'll have to modify write cube void
|
|
|
|
//see SN74HC138 specs
|
|
//http://www.ti.com/lit/ds/symlink/sn54hc138.pdf page 2
|
|
|
|
void writeCube(int tdelay){
|
|
static int currentLayer = 0;
|
|
unsigned long startedAt = millis();
|
|
while(millis() - startedAt < tdelay) {
|
|
// Wait for a bit on previous layer
|
|
delay(1);
|
|
|
|
// Turn off all layers
|
|
for(int pin = 0; pin < 8; pin++){
|
|
digitalWrite(layersPins[pin],LOW);
|
|
}
|
|
|
|
// Output Enabled off
|
|
digitalWrite(pinOE, HIGH);
|
|
|
|
// Lines
|
|
// Set IC
|
|
PORTB = 0;
|
|
for(int ligne = 0; ligne < 8; ligne++) {
|
|
// Write BUS for this leds'line
|
|
for (int led=0;led <8;led++) {
|
|
digitalWrite(busPins[led], cube[currentLayer][ligne][led]);
|
|
}
|
|
|
|
// 74HC574 is writed when clock pin goes LOW to HIGH. SO go to the next value for IC.
|
|
PORTB = (ligne + 1) & B00000111;
|
|
}
|
|
|
|
// Output Enabled on
|
|
digitalWrite(pinOE, LOW);
|
|
|
|
// Layer on
|
|
digitalWrite(layersPins[currentLayer],HIGH);
|
|
|
|
// Change currentLayer
|
|
if(currentLayer == 8) {
|
|
currentLayer = 0;
|
|
} else {
|
|
currentLayer++;
|
|
}
|
|
}
|
|
}
|
|
|
|
void fillCube() {
|
|
for(int i=0; i < 512; i++) ((byte *)cube)[i] = true;
|
|
}
|
|
|
|
void lowCube() {
|
|
for(int i=0; i < 512; i++) ((byte *)cube)[i] = false;
|
|
}
|
|
|
|
void setup() {
|
|
for(int pin=0; pin<8; pin++){
|
|
pinMode(layersPins[pin], OUTPUT);
|
|
pinMode(busPins[pin], OUTPUT);
|
|
}
|
|
|
|
for(int pin=0;pin<3;pin++){
|
|
pinMode(ICPins[pin],OUTPUT);
|
|
}
|
|
|
|
pinMode(pinOE, OUTPUT);
|
|
digitalWrite(pinOE, LOW);
|
|
lowCube();
|
|
}
|
|
|
|
//***************** Some animate samples **************************
|
|
|
|
void drawline(int x1, int y1, int z1, const int x2, const int y2, const int z2, byte value){
|
|
// Bresenham3D from https://gist.github.com/yamamushi/5823518
|
|
int i, dx, dy, dz, l, m, n, x_inc, y_inc, z_inc, err_1, err_2, dx2, dy2, dz2;
|
|
int point[3];
|
|
|
|
point[0] = x1;
|
|
point[1] = y1;
|
|
point[2] = z1;
|
|
dx = x2 - x1;
|
|
dy = y2 - y1;
|
|
dz = z2 - z1;
|
|
x_inc = (dx < 0) ? -1 : 1;
|
|
l = abs(dx);
|
|
y_inc = (dy < 0) ? -1 : 1;
|
|
m = abs(dy);
|
|
z_inc = (dz < 0) ? -1 : 1;
|
|
n = abs(dz);
|
|
dx2 = l << 1;
|
|
dy2 = m << 1;
|
|
dz2 = n << 1;
|
|
|
|
if ((l >= m) && (l >= n)) {
|
|
err_1 = dy2 - l;
|
|
err_2 = dz2 - l;
|
|
for (i = 0; i < l; i++) {
|
|
cube[point[0]][point[1]][point[2]] ^= value;
|
|
if (err_1 > 0) {
|
|
point[1] += y_inc;
|
|
err_1 -= dx2;
|
|
}
|
|
if (err_2 > 0) {
|
|
point[2] += z_inc;
|
|
err_2 -= dx2;
|
|
}
|
|
err_1 += dy2;
|
|
err_2 += dz2;
|
|
point[0] += x_inc;
|
|
}
|
|
} else if ((m >= l) && (m >= n)) {
|
|
err_1 = dx2 - m;
|
|
err_2 = dz2 - m;
|
|
for (i = 0; i < m; i++) {
|
|
cube[point[0]][point[1]][point[2]] ^= value;
|
|
if (err_1 > 0) {
|
|
point[0] += x_inc;
|
|
err_1 -= dy2;
|
|
}
|
|
if (err_2 > 0) {
|
|
point[2] += z_inc;
|
|
err_2 -= dy2;
|
|
}
|
|
err_1 += dx2;
|
|
err_2 += dz2;
|
|
point[1] += y_inc;
|
|
}
|
|
} else {
|
|
err_1 = dy2 - n;
|
|
err_2 = dx2 - n;
|
|
for (i = 0; i < n; i++) {
|
|
cube[point[0]][point[1]][point[2]] ^= value;
|
|
if (err_1 > 0) {
|
|
point[1] += y_inc;
|
|
err_1 -= dz2;
|
|
}
|
|
if (err_2 > 0) {
|
|
point[0] += x_inc;
|
|
err_2 -= dz2;
|
|
}
|
|
err_1 += dy2;
|
|
err_2 += dx2;
|
|
point[2] += z_inc;
|
|
}
|
|
}
|
|
cube[point[0]][point[1]][point[2]] ^= value;
|
|
}
|
|
|
|
void dolines() {
|
|
for(int i = 0; i < 8; i++) {
|
|
drawline(0, 0, i, 7, i, 7, true);
|
|
drawline(0, i, 0, i, 7, 7, true);
|
|
drawline(i, 0, 0, 7, 7, i, true);
|
|
writeCube(100);
|
|
}
|
|
for(int i = 0; i < 8; i++) {
|
|
drawline(i, 0, i, 7, i, 7, true);
|
|
drawline(0, i, 0, i, 7, 7, true);
|
|
drawline(i, 0, i, 7, 7, i, true);
|
|
writeCube(100);
|
|
}
|
|
for(int i = 0; i < 8; i++) {
|
|
drawline(i, 0, 0, 7, i, 7, true);
|
|
drawline(0, i, 0, i, 7, 7, true);
|
|
drawline(0, 0, i, 7, 7, i, true);
|
|
writeCube(100);
|
|
}
|
|
}
|
|
|
|
void fillface() {
|
|
int i,j;
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,i,j,0, true);
|
|
writeCube(60);
|
|
drawline(4,4,4,i,j,0, true);
|
|
cube[i][j][0] = true;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,0,i,j, true);
|
|
writeCube(60);
|
|
drawline(4,4,4,0,i,j, true);
|
|
cube[0][i][j] = true;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,i,0,j, true);
|
|
writeCube(60);
|
|
drawline(4,4,4,i,0,j, true);
|
|
cube[i][0][j] = true;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,i,j,7, true);
|
|
writeCube(60);
|
|
drawline(4,4,4,i,j,7, true);
|
|
cube[i][j][7] = true;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,7,i,j, true);
|
|
writeCube(60);
|
|
drawline(4,4,4,7,i,j, true);
|
|
cube[7][i][j] = true;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,i,7,j, true);
|
|
writeCube(60);
|
|
drawline(4,4,4,i,7,j, true);
|
|
cube[i][7][j] = true;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,i,j,0, true);
|
|
writeCube(60);
|
|
drawline(4,4,4,i,j,0, true);
|
|
cube[i][j][0] = false;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,0,i,j, true);
|
|
writeCube(60);
|
|
drawline(4,4,4,0,i,j, true);
|
|
cube[0][i][j] = false;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,i,0,j, true);
|
|
writeCube(60);
|
|
drawline(4,4,4,i,0,j, true);
|
|
cube[i][0][j] = false;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,i,j,7, true);
|
|
writeCube(60);
|
|
drawline(4,4,4,i,j,7, true);
|
|
cube[i][j][7] = false;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,7,i,j, false);
|
|
writeCube(60);
|
|
drawline(4,4,4,7,i,j, false);
|
|
cube[7][i][j] = false;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
for(j= 0; j < 8; j++) {
|
|
drawline(4,4,4,i,7,j, false);
|
|
writeCube(60);
|
|
drawline(4,4,4,i,7,j, false);
|
|
cube[i][7][j] = false;
|
|
}
|
|
}
|
|
lowCube();
|
|
}
|
|
|
|
void laserToOppositeFace(){
|
|
for(int i = 0; i < 8; i++) {
|
|
for(int j= 0; j < 8; j++) {
|
|
drawline(0,0,0,7,i,j, true);
|
|
writeCube(50);
|
|
|
|
|
|
//lowCube();
|
|
|
|
for(int k=0;k<7;k++){
|
|
for(int l=0;l<7;l++){
|
|
for(int m=0;m<7;m++){
|
|
cube[k][l][m]=false;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
}
|
|
for(int j= 0; j < 8; j++) {
|
|
drawline(0,0,0,7-j,i,7, true);
|
|
writeCube(50);
|
|
|
|
//lowCube();
|
|
|
|
for(int k=0;k<7;k++){
|
|
for(int l=0;l<7;l++){
|
|
for(int m=0;m<7;m++){
|
|
cube[k][l][m]=false;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void loop() {
|
|
laserToOppositeFace();
|
|
lowCube();
|
|
fillface();
|
|
|
|
} |