From 66dcf910bd4744d8ced56cb9586aa937a1a2d4c5 Mon Sep 17 00:00:00 2001 From: vg Date: Tue, 7 Jul 2020 16:24:01 +0200 Subject: first commit --- instructables/arduinocube/arduinocube.pde | 790 ++++++++++++++++++++++++++++++ 1 file changed, 790 insertions(+) create mode 100644 instructables/arduinocube/arduinocube.pde (limited to 'instructables/arduinocube') diff --git a/instructables/arduinocube/arduinocube.pde b/instructables/arduinocube/arduinocube.pde new file mode 100644 index 0000000..87ce566 --- /dev/null +++ b/instructables/arduinocube/arduinocube.pde @@ -0,0 +1,790 @@ +#include +#include +#define AXIS_X 1 +#define AXIS_Y 2 +#define AXIS_Z 3 + +volatile unsigned char cube[8][8]; +volatile int current_layer = 0; + +void setup() +{ + int i; + + for(i=0; i<14; i++) + pinMode(i, OUTPUT); + + // pinMode(A0, OUTPUT) as specified in the arduino reference didn't work. So I accessed the registers directly. + DDRC = 0xff; + PORTC = 0x00; + + // Reset any PWM configuration that the arduino may have set up automagically! + TCCR2A = 0x00; + TCCR2B = 0x00; + + TCCR2A |= (0x01 << WGM21); // CTC mode. clear counter on TCNT2 == OCR2A + OCR2A = 10; // Interrupt every 25600th cpu cycle (256*100) + TCNT2 = 0x00; // start counting at 0 + TCCR2B |= (0x01 << CS22) | (0x01 << CS21); // Start the clock with a 256 prescaler + + TIMSK2 |= (0x01 << OCIE2A); +} + +ISR (TIMER2_COMPA_vect) +{ + int i; + + // all layer selects off + PORTC = 0x00; + PORTB &= 0x0f; + + PORTB |= 0x08; // output enable off. + + for (i=0; i<8; i++) + { + PORTD = cube[current_layer][i]; + PORTB = (PORTB & 0xF8) | (0x07 & (i+1)); + } + + PORTB &= 0b00110111; // Output enable on. + + if (current_layer < 6) + { + PORTC = (0x01 << current_layer); + } else if (current_layer == 6) + { + digitalWrite(12, HIGH); + } else + { + digitalWrite(13, HIGH); + } + + current_layer++; + + if (current_layer == 8) + current_layer = 0; +} + +void loop() +{ + int i,x,y,z; + + while (true) + { + + effect_planboing(AXIS_Z, 400); + effect_planboing(AXIS_Y, 400); + effect_planboing(AXIS_X, 400); + + effect_blinky2(); + + effect_random_filler(75,1); + effect_random_filler(75,0); + + effect_rain(100); + + effect_boxside_randsend_parallel (AXIS_X, 0, 150, 1); + effect_boxside_randsend_parallel (AXIS_X, 1, 150, 1); + effect_boxside_randsend_parallel (AXIS_Y, 0, 150, 1); + effect_boxside_randsend_parallel (AXIS_Y, 1, 150, 1); + effect_boxside_randsend_parallel (AXIS_Z, 0, 150, 1); + effect_boxside_randsend_parallel (AXIS_Z, 1, 150, 1); + + } +} + + +// ========================================================================================== +// Effect functions +// ========================================================================================== + +void draw_positions_axis (char axis, unsigned char positions[64], int invert) +{ + int x, y, p; + + fill(0x00); + + for (x=0; x<8; x++) + { + for (y=0; y<8; y++) + { + if (invert) + { + p = (7-positions[(x*8)+y]); + } else + { + p = positions[(x*8)+y]; + } + + if (axis == AXIS_Z) + setvoxel(x,y,p); + + if (axis == AXIS_Y) + setvoxel(x,p,y); + + if (axis == AXIS_X) + setvoxel(p,y,x); + } + } + +} + + +void effect_boxside_randsend_parallel (char axis, int origin, int delay, int mode) +{ + int i; + int done; + unsigned char cubepos[64]; + unsigned char pos[64]; + int notdone = 1; + int notdone2 = 1; + int sent = 0; + + for (i=0;i<64;i++) + { + pos[i] = 0; + } + + while (notdone) + { + if (mode == 1) + { + notdone2 = 1; + while (notdone2 && sent<64) + { + i = rand()%64; + if (pos[i] == 0) + { + sent++; + pos[i] += 1; + notdone2 = 0; + } + } + } else if (mode == 2) + { + if (sent<64) + { + pos[sent] += 1; + sent++; + } + } + + done = 0; + for (i=0;i<64;i++) + { + if (pos[i] > 0 && pos[i] <7) + { + pos[i] += 1; + } + + if (pos[i] == 7) + done++; + } + + if (done == 64) + notdone = 0; + + for (i=0;i<64;i++) + { + if (origin == 0) + { + cubepos[i] = pos[i]; + } else + { + cubepos[i] = (7-pos[i]); + } + } + + + delay_ms(delay); + draw_positions_axis(axis,cubepos,0); + + } + +} + + +void effect_rain (int iterations) +{ + int i, ii; + int rnd_x; + int rnd_y; + int rnd_num; + + for (ii=0;ii0) + { + fill(0x00); + delay_ms(i); + + fill(0xff); + delay_ms(100); + + i = i - (15+(1000/(i/10))); + } + + delay_ms(1000); + + i = 750; + while (i>0) + { + fill(0x00); + delay_ms(751-i); + + fill(0xff); + delay_ms(100); + + i = i - (15+(1000/(i/10))); + } + } + +} + +// Draw a plane on one axis and send it back and forth once. +void effect_planboing (int plane, int speed) +{ + int i; + for (i=0;i<8;i++) + { + fill(0x00); + setplane(plane, i); + delay_ms(speed); + } + + for (i=7;i>=0;i--) + { + fill(0x00); + setplane(plane,i); + delay_ms(speed); + } +} + +// ========================================================================================== +// Draw functions +// ========================================================================================== + + +// Set a single voxel to ON +void setvoxel(int x, int y, int z) +{ + if (inrange(x,y,z)) + cube[z][y] |= (1 << x); +} + + +// Set a single voxel to ON +void clrvoxel(int x, int y, int z) +{ + if (inrange(x,y,z)) + cube[z][y] &= ~(1 << x); +} + + + +// This function validates that we are drawing inside the cube. +unsigned char inrange(int x, int y, int z) +{ + if (x >= 0 && x < 8 && y >= 0 && y < 8 && z >= 0 && z < 8) + { + return 0x01; + } else + { + // One of the coordinates was outside the cube. + return 0x00; + } +} + +// Get the current status of a voxel +unsigned char getvoxel(int x, int y, int z) +{ + if (inrange(x,y,z)) + { + if (cube[z][y] & (1 << x)) + { + return 0x01; + } else + { + return 0x00; + } + } else + { + return 0x00; + } +} + +// In some effect we want to just take bool and write it to a voxel +// this function calls the apropriate voxel manipulation function. +void altervoxel(int x, int y, int z, int state) +{ + if (state == 1) + { + setvoxel(x,y,z); + } else + { + clrvoxel(x,y,z); + } +} + +// Flip the state of a voxel. +// If the voxel is 1, its turned into a 0, and vice versa. +void flpvoxel(int x, int y, int z) +{ + if (inrange(x, y, z)) + cube[z][y] ^= (1 << x); +} + +// Makes sure x1 is alwas smaller than x2 +// This is usefull for functions that uses for loops, +// to avoid infinite loops +void argorder(int ix1, int ix2, int *ox1, int *ox2) +{ + if (ix1>ix2) + { + int tmp; + tmp = ix1; + ix1= ix2; + ix2 = tmp; + } + *ox1 = ix1; + *ox2 = ix2; +} + +// Sets all voxels along a X/Y plane at a given point +// on axis Z +void setplane_z (int z) +{ + int i; + if (z>=0 && z<8) + { + for (i=0;i<8;i++) + cube[z][i] = 0xff; + } +} + +// Clears voxels in the same manner as above +void clrplane_z (int z) +{ + int i; + if (z>=0 && z<8) + { + for (i=0;i<8;i++) + cube[z][i] = 0x00; + } +} + +void setplane_x (int x) +{ + int z; + int y; + if (x>=0 && x<8) + { + for (z=0;z<8;z++) + { + for (y=0;y<8;y++) + { + cube[z][y] |= (1 << x); + } + } + } +} + +void clrplane_x (int x) +{ + int z; + int y; + if (x>=0 && x<8) + { + for (z=0;z<8;z++) + { + for (y=0;y<8;y++) + { + cube[z][y] &= ~(1 << x); + } + } + } +} + +void setplane_y (int y) +{ + int z; + if (y>=0 && y<8) + { + for (z=0;z<8;z++) + cube[z][y] = 0xff; + } +} + +void clrplane_y (int y) +{ + int z; + if (y>=0 && y<8) + { + for (z=0;z<8;z++) + cube[z][y] = 0x00; + } +} + +void setplane (char axis, unsigned char i) +{ + switch (axis) + { + case AXIS_X: + setplane_x(i); + break; + + case AXIS_Y: + setplane_y(i); + break; + + case AXIS_Z: + setplane_z(i); + break; + } +} + +void clrplane (char axis, unsigned char i) +{ + switch (axis) + { + case AXIS_X: + clrplane_x(i); + break; + + case AXIS_Y: + clrplane_y(i); + break; + + case AXIS_Z: + clrplane_z(i); + break; + } +} + +// Fill a value into all 64 byts of the cube buffer +// Mostly used for clearing. fill(0x00) +// or setting all on. fill(0xff) +void fill (unsigned char pattern) +{ + int z; + int y; + for (z=0;z<8;z++) + { + for (y=0;y<8;y++) + { + cube[z][y] = pattern; + } + } +} + + + +// Draw a box with all walls drawn and all voxels inside set +void box_filled(int x1, int y1, int z1, int x2, int y2, int z2) +{ + int iy; + int iz; + + argorder(x1, x2, &x1, &x2); + argorder(y1, y2, &y1, &y2); + argorder(z1, z2, &z1, &z2); + + for (iz=z1;iz<=z2;iz++) + { + for (iy=y1;iy<=y2;iy++) + { + cube[iz][iy] |= byteline(x1,x2); + } + } + +} + +// Darw a hollow box with side walls. +void box_walls(int x1, int y1, int z1, int x2, int y2, int z2) +{ + int iy; + int iz; + + argorder(x1, x2, &x1, &x2); + argorder(y1, y2, &y1, &y2); + argorder(z1, z2, &z1, &z2); + + for (iz=z1;iz<=z2;iz++) + { + for (iy=y1;iy<=y2;iy++) + { + if (iy == y1 || iy == y2 || iz == z1 || iz == z2) + { + cube[iz][iy] = byteline(x1,x2); + } else + { + cube[iz][iy] |= ((0x01 << x1) | (0x01 << x2)); + } + } + } + +} + +// Draw a wireframe box. This only draws the corners and edges, +// no walls. +void box_wireframe(int x1, int y1, int z1, int x2, int y2, int z2) +{ + int iy; + int iz; + + argorder(x1, x2, &x1, &x2); + argorder(y1, y2, &y1, &y2); + argorder(z1, z2, &z1, &z2); + + // Lines along X axis + cube[z1][y1] = byteline(x1,x2); + cube[z1][y2] = byteline(x1,x2); + cube[z2][y1] = byteline(x1,x2); + cube[z2][y2] = byteline(x1,x2); + + // Lines along Y axis + for (iy=y1;iy<=y2;iy++) + { + setvoxel(x1,iy,z1); + setvoxel(x1,iy,z2); + setvoxel(x2,iy,z1); + setvoxel(x2,iy,z2); + } + + // Lines along Z axis + for (iz=z1;iz<=z2;iz++) + { + setvoxel(x1,y1,iz); + setvoxel(x1,y2,iz); + setvoxel(x2,y1,iz); + setvoxel(x2,y2,iz); + } + +} + +// Returns a byte with a row of 1's drawn in it. +// byteline(2,5) gives 0b00111100 +char byteline (int start, int end) +{ + return ((0xff<> 7)); + flop = (flop & 0b11111101) | (0b00000010 & (byte >> 5)); + flop = (flop & 0b11111011) | (0b00000100 & (byte >> 3)); + flop = (flop & 0b11110111) | (0b00001000 & (byte >> 1)); + flop = (flop & 0b11101111) | (0b00010000 & (byte << 1)); + flop = (flop & 0b11011111) | (0b00100000 & (byte << 3)); + flop = (flop & 0b10111111) | (0b01000000 & (byte << 5)); + flop = (flop & 0b01111111) | (0b10000000 & (byte << 7)); + return flop; +} + +// Draw a line between any coordinates in 3d space. +// Uses integer values for input, so dont expect smooth animations. +void line(int x1, int y1, int z1, int x2, int y2, int z2) +{ + float xy; // how many voxels do we move on the y axis for each step on the x axis + float xz; // how many voxels do we move on the y axis for each step on the x axis + unsigned char x,y,z; + unsigned char lasty,lastz; + + // We always want to draw the line from x=0 to x=7. + // If x1 is bigget than x2, we need to flip all the values. + if (x1>x2) + { + int tmp; + tmp = x2; x2 = x1; x1 = tmp; + tmp = y2; y2 = y1; y1 = tmp; + tmp = z2; z2 = z1; z1 = tmp; + } + + + if (y1>y2) + { + xy = (float)(y1-y2)/(float)(x2-x1); + lasty = y2; + } else + { + xy = (float)(y2-y1)/(float)(x2-x1); + lasty = y1; + } + + if (z1>z2) + { + xz = (float)(z1-z2)/(float)(x2-x1); + lastz = z2; + } else + { + xz = (float)(z2-z1)/(float)(x2-x1); + lastz = z1; + } + + + + // For each step of x, y increments by: + for (x = x1; x<=x2;x++) + { + y = (xy*(x-x1))+y1; + z = (xz*(x-x1))+z1; + setvoxel(x,y,z); + } + +} + +// Delay loop. +// This is not calibrated to milliseconds, +// but we had allready made to many effects using this +// calibration when we figured it might be a good idea +// to calibrate it. +void delay_ms(uint16_t x) +{ + uint8_t y, z; + for ( ; x > 0 ; x--){ + for ( y = 0 ; y < 90 ; y++){ + for ( z = 0 ; z < 6 ; z++){ + asm volatile ("nop"); + } + } + } +} + + + +// Shift the entire contents of the cube along an axis +// This is great for effects where you want to draw something +// on one side of the cube and have it flow towards the other +// side. Like rain flowing down the Z axiz. +void shift (char axis, int direction) +{ + int i, x ,y; + int ii, iii; + int state; + + for (i = 0; i < 8; i++) + { + if (direction == -1) + { + ii = i; + } else + { + ii = (7-i); + } + + + for (x = 0; x < 8; x++) + { + for (y = 0; y < 8; y++) + { + if (direction == -1) + { + iii = ii+1; + } else + { + iii = ii-1; + } + + if (axis == AXIS_Z) + { + state = getvoxel(x,y,iii); + altervoxel(x,y,ii,state); + } + + if (axis == AXIS_Y) + { + state = getvoxel(x,iii,y); + altervoxel(x,ii,y,state); + } + + if (axis == AXIS_X) + { + state = getvoxel(iii,y,x); + altervoxel(ii,y,x,state); + } + } + } + } + + if (direction == -1) + { + i = 7; + } else + { + i = 0; + } + + for (x = 0; x < 8; x++) + { + for (y = 0; y < 8; y++) + { + if (axis == AXIS_Z) + clrvoxel(x,y,i); + + if (axis == AXIS_Y) + clrvoxel(x,i,y); + + if (axis == AXIS_X) + clrvoxel(i,y,x); + } + } +} + -- cgit v1.2.3