-
Notifications
You must be signed in to change notification settings - Fork 4
/
ReactTable.ino
1116 lines (942 loc) · 32 KB
/
ReactTable.ino
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
//#define FASTLED_ESP32_I2S
#include <FastLED.h>
#include <adel.h>
// === Pattern mode =========================================================
/** Mode
* This code supports four different animations. You can choose one of them,
* or set "cycle" to true to cycle through all of them at some set interval.
*/
enum Mode { SolidMode, ConfettiMode, SpinnerMode, GearMode, FireMode,
SurfaceMode, RippleMode, DiffusionMode, AttractorMode, MirrorMode };
#define NUM_MODES 10
// -- Mode choice
Mode g_Mode = SurfaceMode;
// -- To cycle modes, set cycle to true and choose an interval (in milliseconds)
bool g_Cycle = false;
const int TIME_PER_PATTERN = 15000;
#define MODE_PIN 14
// === Multi-cell pin settings ==============================================
/** IR channel selector
*
* Each analog multiplexer takes 16 analog inputs and produces one The
* particular output is chosen by setting four digital inputs to the
* binary representation of the analog input desired. For example, to
* read input number 13, which is 1101 in binary, set bit 3 to HIGH,
* bit 2 to HIGH bit 1 to LOW, and bit 0 to HIGH.
*
* The four definitions below indicate which pins on the
* microcontroller are connected to the four digital inputs on the
* multiplexer.
*/
#define IR_CHANNEL_BIT_0 5
#define IR_CHANNEL_BIT_1 18
#define IR_CHANNEL_BIT_2 23
#define IR_CHANNEL_BIT_3 19
/** IR input pins
*
* My design requires four multiplexers because we have 61 IR analog
* inputs. The way I set it up, four digital inputs are connected to
* all four of the multiplexers. Each multiplexer then has its own
* input pin to read the value. To read any one of the 64 possible
* analog inputs, we take the low 4 bits of the input number and send
* that to the channel selectors (above). Then we read in the input on
* the pin specified by the next two bits of the input.
*/
int IR_INPUTS[] = {32, 33, 34, 35}; // { 27, 33, 34, 35 };
/** Cell configuration
*
* My table has 61 cells, with 12 WS2812 LEDs per cell.
*/
#define NUM_CELLS 61
#define LEDS_PER_CELL 12
#define NUM_LEDS (NUM_CELLS * LEDS_PER_CELL)
class Cell;
Cell * g_Cells[NUM_CELLS];
/** Storage for LEDs */
CRGB g_LEDs[NUM_LEDS];
/** Kind of LEDs */
#define COLOR_ORDER GRB
#define CHIPSET WS2812
/** LED strip setup
* Set up the wiring of the LED strips here. I've wired mine so that each pair of
* columns of rings (a total of 11 rings) has a data input. That's 11 * 12 = 132
* LEDs on each pin, except for the last one.
*/
void LED_setup()
{
FastLED.addLeds<CHIPSET, 17, COLOR_ORDER>(g_LEDs, 132*0, 132).setCorrection( TypicalLEDStrip );
FastLED.addLeds<CHIPSET, 16, COLOR_ORDER>(g_LEDs, 132*1, 132).setCorrection( TypicalLEDStrip );
FastLED.addLeds<CHIPSET, 4, COLOR_ORDER>(g_LEDs, 132*2, 132).setCorrection( TypicalLEDStrip );
FastLED.addLeds<CHIPSET, 2, COLOR_ORDER>(g_LEDs, 132*3, 132).setCorrection( TypicalLEDStrip );
FastLED.addLeds<CHIPSET, 15, COLOR_ORDER>(g_LEDs, 132*4, 132).setCorrection( TypicalLEDStrip );
FastLED.addLeds<CHIPSET, 12, COLOR_ORDER>(g_LEDs, 132*5, 72).setCorrection( TypicalLEDStrip );
}
/** Animation speed */
#define FRAMES_PER_SECOND 30
/** Default brightness */
uint8_t g_Brightness = 40;
/** Cell mapping
*
* This data structure holds the physical information about a cell:
* ir_index: the index of the IR sensor in the multiplexer
* ring_index: the index of the LED ring in the logical "strip" of LEDs
* x,y: the position of the center of the cell in centimeters
*/
struct CellMapEntry
{
uint8_t m_ir_index;
uint16_t m_ring_index;
uint8_t m_x;
uint8_t m_y;
};
CellMapEntry g_CellMap[] = {
{ 0, 60, 2, 2 }, { 1, 49, 12, 2 }, { 2, 38, 22, 2 }, { 3, 27, 32, 2 }, { 4, 16, 42, 2 }, { 5, 5, 52, 2 },
{ 6, 54, 7, 5 }, { 7, 43, 17, 5 }, { 8, 32, 27, 5 }, { 9, 21, 37, 5 }, { 10, 10, 47, 5 },
{ 11, 59, 2, 8 }, { 12, 48, 12, 8 }, { 13, 37, 22, 8 }, { 14, 26, 32, 8 }, { 15, 15, 42, 8 }, { 16, 4, 52, 8 },
{ 17, 53, 7, 11 }, { 18, 42, 17, 11 }, { 19, 31, 27, 11 }, { 20, 20, 37, 11 }, { 21, 9, 47, 11 },
{ 22, 58, 2, 14 }, { 23, 47, 12, 14 }, { 24, 36, 22, 14 }, { 25, 25, 32, 14 }, { 26, 14, 42, 14 }, { 27, 3, 52, 14 },
{ 28, 52, 7, 17 }, { 29, 41, 17, 17 }, { 30, 30, 27, 17 }, { 31, 19, 37, 17 }, { 32, 8, 47, 17 },
{ 33, 57, 2, 20 }, { 34, 46, 12, 20 }, { 35, 35, 22, 20 }, { 36, 24, 32, 20 }, { 37, 13, 42, 20 }, { 38, 2, 52, 20 },
{ 39, 51, 7, 23 }, { 40, 40, 17, 23 }, { 41, 29, 27, 23 }, { 42, 18, 37, 23 }, { 43, 7, 47, 23 },
{ 44, 56, 2, 26 }, { 45, 45, 12, 26 }, { 46, 34, 22, 26 }, { 47, 23, 32, 26 }, { 48, 12, 42, 26 }, { 49, 1, 52, 26 },
{ 50, 50, 7, 29 }, { 51, 39, 17, 29 }, { 52, 28, 27, 29 }, { 53, 17, 37, 29 }, { 54, 6, 47, 29 },
{ 55, 55, 2, 32 }, { 56, 44, 12, 32 }, { 57, 33, 22, 32 }, { 58, 22, 32, 32 }, { 59, 11, 42, 32 }, { 60, 0, 52, 32 }
};
/** Surface coordinate system
*
* The surface is a logical 2-D grid measured in centimeters. In surface
* mode, the LEDs sample their values from this single grid, allowing the
* entire table to be treated as a single image.
*/
#define SURFACE_WIDTH 54
#define SURFACE_HEIGHT 34
/** Surface
*
* Fill this 2-D grid with values to display a single image.
*/
uint8_t g_Surface[SURFACE_WIDTH][SURFACE_HEIGHT];
/** Ring coordinate mapping
*
* Precompute the position of each LED relative to the surface coordinate
* system. The result is a sampling pattern for each LED: surface elements
* and ratios of mixing those elements.
*
* My model: a ring has a diameter of 4cm; each LED is .5cm square, so the
* inner diameter of the ring is 3cm. The middle of the ring is at 3.5cm.
*/
struct SurfaceSample
{
int dx;
int dy;
int top_left_part;
int top_right_part;
int bottom_left_part;
int bottom_right_part;
};
SurfaceSample g_SurfaceSamples[LEDS_PER_CELL];
int modi(float v, int * i)
{
double v_whole, v_frac;
v_frac = modf(v, &v_whole);
int vi = (int) v_whole;
int vf = (int) (10.0 * v_frac);
*i = vi;
return vf;
}
void computePixelOffsets()
{
Serial.println();
for (int i = 0; i < LEDS_PER_CELL; i++) {
// -- Divide the ring into 12 equal angles
float frac = ((float) i) / ((float) LEDS_PER_CELL);
float angle = frac * 3.1415926535897 * 2.0;
// -- X and Y along a ring of diameter 3.0cm
// These values correspond to the top left corner of each LED
float x = (cos(angle) + 1.0) * 1.5;
float y = (sin(angle) + 1.0) * 1.5;
// -- Figure out how much of each surface pixel should be sampled by the LED
int xl, xlf;
xlf = modi(x, &xl);
int xr, xrf;
xrf = modi(x + 0.99, &xr);
int yt, ytf;
ytf = modi(y, &yt);
int yb, ybf;
ybf = modi(y + 0.99, &yb);
int top_left = (10 - xlf) * (10 - ytf);
int top_right = 0;
if (xl != xr) {
top_right = xrf * (10 - ytf);
}
int bottom_left = 0;
if (yt != yb) {
bottom_left = (10 - xlf) * ybf;
}
int bottom_right = 0;
if ((xl != xr) && (yt != yb)) {
bottom_right = xrf * ybf;
}
g_SurfaceSamples[i].dx = xl;
g_SurfaceSamples[i].dy = yt;
g_SurfaceSamples[i].top_left_part = top_left;
g_SurfaceSamples[i].top_right_part = top_right;
g_SurfaceSamples[i].bottom_left_part = bottom_left;
g_SurfaceSamples[i].bottom_right_part = bottom_right;
/*
Serial.print("Pixel "); Serial.print(i); Serial.print(" at ");
Serial.print(x); Serial.print(" , "); Serial.print(y);
Serial.print(" : \n");
Serial.print(" X left : "); Serial.print(xl); Serial.print("+"); Serial.print(xlf); Serial.println();
Serial.print(" X right : "); Serial.print(xr); Serial.print("+"); Serial.print(xrf); Serial.println();
Serial.print(" Y top : "); Serial.print(yt); Serial.print("+"); Serial.print(ytf); Serial.println();
Serial.print(" Y bottom: "); Serial.print(yb); Serial.print("+"); Serial.print(ybf); Serial.println();
Serial.print(" Top left : "); Serial.print(top_left);
Serial.print(" Top right : "); Serial.print(top_right);
Serial.print(" Bottom left : "); Serial.print(bottom_left);
Serial.print(" Bottom right : "); Serial.print(bottom_right); Serial.println();
*/
}
}
// === Cells ================================================================
/** Cell
*
* Each cell is managed by an instance of this class, which includes
* all the data and methods needed to read the IR input and set the
* corresponding ring of LEDs.
*
*/
class Cell
{
protected:
// -- LED ring information
uint16_t m_led_index;
CRGBPalette16 m_palette;
// -- IR sensor
int m_ir_input;
int m_ir_channel;
uint16_t m_ir_min;
uint16_t m_ir_max;
uint8_t m_ir_channel_selector[4];
uint16_t m_level;
// -- Physical position
int m_center_x;
int m_center_y;
int m_left;
int m_top;
// -- Data for the patterns
uint16_t m_position;
byte m_heat[LEDS_PER_CELL];
bool m_new_pattern;
struct Flame {
uint8_t fuel;
uint8_t heat;
};
Flame m_flames[LEDS_PER_CELL];
public:
Cell( CellMapEntry& info )
: m_led_index(info.m_ring_index * LEDS_PER_CELL),
m_palette(RainbowColors_p),
m_ir_input(info.m_ir_index >> 4),
m_ir_channel(info.m_ir_index & 0xF),
m_ir_min(100),
m_ir_max(0),
m_level(0),
m_center_x(info.m_x),
m_center_y(info.m_y),
m_position(0),
m_new_pattern(true)
{
// -- Precompute the IR selector signal
m_ir_channel_selector[0] = (m_ir_channel & 0x1) ? HIGH : LOW;
m_ir_channel_selector[1] = (m_ir_channel & 0x2) ? HIGH : LOW;
m_ir_channel_selector[2] = (m_ir_channel & 0x4) ? HIGH : LOW;
m_ir_channel_selector[3] = (m_ir_channel & 0x8) ? HIGH : LOW;
// -- Compute top left for convenience
m_left = m_center_x - 2;
m_top = m_center_y - 2;
}
// ----- Getters --------
int getCenterX() const { return m_center_x; }
int getCenterY() const { return m_center_y; }
// ----- IR Sensors -----
/** Set the IR max and min
* Determined by the calibration phase.
*/
void setIRMax(uint16_t ir_max) {
m_ir_max = ir_max;
}
void setIRMin(uint16_t ir_min) {
m_ir_min = ir_min;
}
/** Read raw IR value
* We can have several MUXs, each with 16 channels. To read a specific
* IR value, we specify which MUX (the "input") and which channel.
*/
uint16_t rawIR()
{
uint16_t val;
// -- Select the channel
digitalWrite(IR_CHANNEL_BIT_0, m_ir_channel_selector[0]);
digitalWrite(IR_CHANNEL_BIT_1, m_ir_channel_selector[1]);
digitalWrite(IR_CHANNEL_BIT_2, m_ir_channel_selector[2]);
digitalWrite(IR_CHANNEL_BIT_3, m_ir_channel_selector[3]);
// -- Finally, read the analog value
val = analogRead(IR_INPUTS[m_ir_input]);
return val;
}
/** Sense IR
* Read and map to the calibrated range
*/
uint8_t senseIR()
{
uint16_t val = rawIR();
// -- Pin the value in between the min and max from calibration
if (val < m_ir_min) val = m_ir_min;
if (val > m_ir_max) val = m_ir_max;
// -- Map to 8-bit value
uint8_t level = map(val, m_ir_min, m_ir_max, 0, 255);
return level;
}
/** Sense IR with decay
*
* This version decays the IR value slowly, causing the visual
* effects to linger.
*/
uint8_t senseIRwithDecay(uint8_t down_speed, uint8_t up_speed)
{
uint8_t cur_level = senseIR();
if (cur_level < m_level) {
uint8_t new_level = qsub8(m_level, down_speed);
if (cur_level < new_level) {
m_level = new_level;
} else {
m_level = cur_level;
}
} else {
if (cur_level > m_level) {
uint8_t new_level = qadd8(m_level, up_speed);
if (cur_level > new_level) {
m_level = new_level;
} else {
m_level = cur_level;
}
}
}
return m_level;
}
// ----- Set LEDs in this ring -----
void setLED(int local_index, CRGB color) {
if (local_index < 0) local_index = 0;
if (local_index >= LEDS_PER_CELL) local_index = LEDS_PER_CELL - 1;
g_LEDs[m_led_index + local_index] = color;
}
void setLEDHue(int local_index, uint8_t hue, uint8_t brightness = 255) {
// -- Get the color from the palette
CRGB color = ColorFromPalette(m_palette, hue);
if (brightness < 255) color.nscale8_video(brightness);
setLED(local_index, color);
}
void setAllLEDs(CRGB color) {
for (int i = 0; i < LEDS_PER_CELL; i++) {
g_LEDs[m_led_index + i] = color;
}
}
void setAllLEDsHue(uint8_t hue, uint8_t brightness = 255) {
// -- Get the color from the palette
CRGB color = ColorFromPalette(m_palette, hue);
if (brightness < 255) color.nscale8_video(brightness);
setAllLEDs(color);
}
void fadeToBlackBy(uint8_t howmuch) {
for (int i = 0; i < LEDS_PER_CELL; i++) {
g_LEDs[m_led_index + i].fadeToBlackBy(howmuch);
}
}
// ----- Dithered pixels -----
/* Set a pixel
*
* In these methods, the position is expressed as a 16-bit
* fixed-precision number that maps to whatever number of actual
* LEDs there are in the strip/ring. This function dithers the
* adjacent pixels to create a smooth transition. It needs to be
* fast!
*/
void setPixel(uint16_t pos, CRGB color)
{
// -- Scale the position from 0-0xFFFF to 0-m_num_leds
// but keep the fractional part. The result is a 16-bit
// value where the high 8 bits are in [0,num_leds] and
// the low 8 bits are the faction in [0,0xFF]
uint32_t pos32 = (uint32_t) pos;
uint16_t scaled_pos = (pos32 * LEDS_PER_CELL) >> 8;
// -- Break the position into the whole and fractional parts. The
// fractional part is represented by the brightness of two
// adjacent LEDs.
int indexA = scaled_pos >> 8;
uint8_t offsetA = scaled_pos & 0xFF;
// -- Pixels can straddle two LEDs, so compute the other partial LED.
int indexB;
if (indexA == 0) indexB = LEDS_PER_CELL - 1;
else indexB = indexA - 1;
uint8_t offsetB = 0xFF - offsetA; // A little less than full on
// -- Scale the brightness and assign the LEDs
if (offsetA > 10) nblend(g_LEDs[m_led_index + indexA], color, offsetA);
if (offsetB > 10) nblend(g_LEDs[m_led_index + indexB], color, offsetB);
}
/** Set a pixel
* This version just chooses the color from the palette.
*/
void setPixelHue(uint16_t pos, uint8_t hue, uint8_t brightness = 255)
{
// -- Get the color from the palette
CRGB color = ColorFromPalette(m_palette, hue);
if (brightness < 255) color.nscale8_video(brightness);
setPixel(pos, color);
}
// ----- Patterns -----
// -- Call this method to trigger pattern initialization
void newPattern() { m_new_pattern = true; }
void SolidPattern()
{
if (m_new_pattern) {
m_palette = RainbowColors_p;
m_new_pattern = false;
}
uint8_t level = senseIRwithDecay(12, 4);
if (level > 230) level = 230;
setAllLEDsHue(level);
}
void ConfettiPattern()
{
if (m_new_pattern) {
m_palette = RainbowColors_p;
m_new_pattern = false;
}
fadeToBlackBy(80);
uint8_t level = senseIRwithDecay(15, 4);
uint8_t prob = 255 - level;
uint8_t coin = random8();
if (coin < prob) {
int pos = random8(LEDS_PER_CELL);
setLEDHue(pos, level + random8(64));
}
}
void SpinnerPattern(int min_speed, int max_speed)
{
// -- Initialize if necessary
if (m_new_pattern) {
m_position = random16();
m_palette = RainbowColors_p;
m_new_pattern = false;
}
setAllLEDs(CRGB::Black); // fadeToBlackBy(80);
uint8_t level = senseIRwithDecay(12, 4);
int speed = map(level, 0, 255, max_speed, min_speed);
m_position += speed;
if (level > 230) level = 230;
setPixelHue(m_position, level);
}
void GearPattern(int min_speed, int max_speed)
{
// -- Initialize if necessary
if (m_new_pattern) {
m_position = random16();
m_palette = RainbowColors_p;
m_new_pattern = false;
}
setAllLEDs(CRGB::Black); // fadeToBlackBy(80);
uint8_t level = senseIRwithDecay(12, 4);
int speed = map(level, 0, 255, max_speed, min_speed);
m_position += speed;
if (level > 230) level = 230;
setPixelHue(m_position, level);
setPixelHue(m_position + 0x5555, level);
setPixelHue(m_position + 0xAAAA, level);
}
void FirePattern(int sparking, int burn_rate)
{
if (m_new_pattern) {
m_palette = HeatColors_p;
for (int i = 0; i < LEDS_PER_CELL; i++) {
m_flames[i].heat = 0;
m_flames[i].fuel = random(40);
}
m_new_pattern = false;
}
uint8_t level = senseIR();
for (int i = 0; i < LEDS_PER_CELL; i++) {
if (m_flames[i].fuel > 0) {
uint8_t burn = burn_rate; // random8(burn_rate);
m_flames[i].fuel = qsub8(m_flames[i].fuel, burn);
m_flames[i].heat = qadd8(m_flames[i].heat, burn);
} else {
uint8_t cool = 20;
m_flames[i].heat = qsub8(m_flames[i].heat, cool);
}
byte colorindex = scale8( m_flames[i].heat, 170);
setLEDHue( i, colorindex);
if (m_flames[i].heat < 10) {
uint8_t prob = map(level, 0, 255, sparking, 5);
if ( random8() < prob ) {
uint8_t max_fuel = map(level, 0, 255, 150, 0);
uint8_t more_fuel = random8(max_fuel) + 100;
m_flames[i].fuel += more_fuel;
}
}
}
}
// --- Surface patterns ---------------
CRGB getSurfaceColor(int x, int y, uint8_t scaledown)
{
if (x < 0 || x >= SURFACE_WIDTH) return CRGB::Black;
if (y < 0 || y >= SURFACE_HEIGHT) return CRGB::Black;
uint8_t hue = g_Surface[x][y];
if (hue == 255) return CRGB::Black;
CRGB color = ColorFromPalette(m_palette, hue);
color %= scaledown;
return color;
}
void SurfacePattern()
{
if (m_new_pattern) {
m_palette = RainbowColors_p;
m_new_pattern = false;
}
for (int i = 0; i < LEDS_PER_CELL; i++) {
// -- Compute the coordinates of this LED
SurfaceSample & s = g_SurfaceSamples[i];
// -- Compute the absolute position of this LED on the surface
int x = m_left + s.dx;
int y = m_top + s.dy;
// -- Look up the surface color and set the LED
CRGB color = getSurfaceColor(x, y, s.top_left_part);
if (s.top_right_part > 0) {
color += getSurfaceColor(x+1, y, s.top_right_part);
}
if (s.bottom_left_part > 0) {
color += getSurfaceColor(x, y+1, s.bottom_left_part);
}
if (s.bottom_right_part > 0) {
color += getSurfaceColor(x+1, y+1, s.bottom_right_part);
}
setLED(i, color);
}
}
};
// === Surfaces =============================================================
void initializeSurface()
{
// -- Precompute LED locations for surface view
computePixelOffsets();
for (int x = 0; x < SURFACE_WIDTH; x++) {
for (int y = 0; y < SURFACE_HEIGHT; y++) {
g_Surface[x][y] = 255;
}
}
}
bool setSurface(int x, int y, uint8_t val)
{
if (x >= 0 and x < SURFACE_WIDTH and y >= 0 and y < SURFACE_HEIGHT) {
g_Surface[x][y] = val;
return true;
} else {
return false;
}
}
bool mixSurface(int x, int y, uint8_t val)
{
if (x >= 0 and x < SURFACE_WIDTH and y >= 0 and y < SURFACE_HEIGHT) {
uint8_t old_val = g_Surface[x][y];
if (old_val != 255) {
val = (val + old_val)/2;
}
g_Surface[x][y] = val;
return true;
} else {
return false;
}
}
uint8_t getSurface(int x, int y)
{
if (x >= 0 and x < SURFACE_WIDTH and y >= 0 and y < SURFACE_HEIGHT) {
return g_Surface[x][y];
} else {
return 0;
}
}
uint16_t g_f_center_x = SURFACE_WIDTH/2;
uint16_t g_f_center_y = SURFACE_HEIGHT/2;
uint8_t g_val = 128;
void ComputeCenterOfMass()
{
uint32_t total_x = 0;
uint32_t total_y = 0;
uint32_t total_weight = 0;
uint8_t m = 255;
for (int i = 0; i < NUM_CELLS; i++) {
Cell * cell = g_Cells[i];
uint32_t x = cell->getCenterX();
uint32_t y = cell->getCenterY();
uint8_t v = cell->senseIR();
if (v < m) {
m = v;
}
uint32_t val = (256 - v)/16;
total_x += x * val;
total_y += y * val;
total_weight += val;
}
if (total_weight > 5) {
// Serial.println(total_weight);
g_f_center_x = total_x / total_weight;
g_f_center_y = total_y / total_weight;
g_val = m;
}
}
void ComputeCenter(bool decay)
{
uint16_t new_center_x = 0;
uint16_t new_center_y = 0;
uint8_t m = 255;
for (int i = 0; i < NUM_CELLS; i++) {
Cell * cell = g_Cells[i];
uint32_t x = cell->getCenterX();
uint32_t y = cell->getCenterY();
uint8_t val = cell->senseIR();
if (val < m) {
m = val;
new_center_x = cell->getCenterX();
new_center_y = cell->getCenterY();
}
}
if (m < 250) {
if (decay) {
g_f_center_x = (g_f_center_x + new_center_x)/2;
g_f_center_y = (g_f_center_y + new_center_y)/2;
} else {
g_f_center_x = new_center_x;
g_f_center_y = new_center_y;
}
g_val = m;
}
}
void CenterSurface()
{
int center_x;
int center_y;
ComputeCenter(true);
center_x = g_f_center_x; // fixed_to_int(g_f_center_x);
center_y = g_f_center_y; // fixed_to_int(g_f_center_y);
// Serial.print(center_x); Serial.print(" "); Serial.println(center_y);
for (int x = 0; x < SURFACE_WIDTH; x++) {
for (int y = 0; y < SURFACE_HEIGHT; y++) {
g_Surface[x][y] = 255;
}
}
int size = 15 - g_val/20;
int left = center_x - size;
int right = center_x + size;
int top = center_y - size;
int bottom = center_y + size;
for (int i = left; i < right; i++) {
setSurface(i, top, g_val);
setSurface(i, bottom, g_val);
}
for (int j = top; j < bottom; j++) {
setSurface(left, j, g_val);
setSurface(right, j, g_val);
}
/*
for (int x = 0; x < SURFACE_WIDTH; x++) {
for (int y = 0; y < SURFACE_HEIGHT; y++) {
int diff_x = (x - center_x);
int diff_y = (y - center_y);
uint16_t dist2 = diff_x * diff_x + diff_y * diff_y;
if (dist2 < 150 - (g_val/2)) {
g_Surface[x][y] = g_val;
} else {
g_Surface[x][y] = 255;
}
}
}
*/
}
class Ripple
{
private:
bool is_on;
uint16_t f_center_x;
uint16_t f_center_y;
uint8_t radius;
uint8_t color;
int num_visible;
public:
Ripple() : is_on(false),
f_center_x(0),
f_center_y(0),
radius(0),
color(128)
{}
bool isOn() { return is_on; }
void init(uint16_t f_x, uint16_t f_y, uint8_t c)
{
is_on = true;
f_center_x = f_x;
f_center_y = f_y;
radius = 1;
color = c;
}
void drawOne(uint16_t f_x, uint16_t f_y)
{
int x = f_x; // fixed_to_int(f_x);
int y = f_y; // fixed_to_int(f_y);
if (mixSurface(x, y, color)) {
num_visible++;
}
}
void draw()
{
if (is_on) {
num_visible = 0;
// int increment = 64/radius;
for (int angle = 0; angle < 64; angle += 4) {
// -- Values 0 -- 255
uint8_t x8 = cos8(angle) - 128;
uint8_t y8 = sin8(angle) - 128;
uint16_t f_delta_x = (x8 * radius)/128;
uint16_t f_delta_y = (y8 * radius)/128;
drawOne(f_center_x + f_delta_x, f_center_y + f_delta_y);
drawOne(f_center_x - f_delta_x, f_center_y + f_delta_y);
drawOne(f_center_x + f_delta_x, f_center_y - f_delta_y);
drawOne(f_center_x - f_delta_x, f_center_y - f_delta_y);
}
}
radius++;
if (radius > 50 || num_visible == 0) {
is_on = false;
}
}
};
#define NUM_RIPPLES 8
Ripple g_ripples[NUM_RIPPLES];
uint32_t g_last_new = 0;
int g_old_center_x = 0;
int g_old_center_y = 0;
void RippleSurface()
{
for (int x = 0; x < SURFACE_WIDTH; x++) {
for (int y = 0; y < SURFACE_HEIGHT; y++) {
g_Surface[x][y] = 255;
}
}
bool make_new = false;
uint32_t cur = millis();
if (cur - g_last_new > 150) {
g_last_new = cur;
ComputeCenter(false);
int center_x = g_f_center_x; // fixed_to_int(g_f_center_x);
int center_y = g_f_center_y; // fixed_to_int(g_f_center_y);
if ((center_x != g_old_center_x) || (center_y != g_old_center_y)) {
make_new = true;
g_old_center_x = center_x;
g_old_center_y = center_y;
}
}
for (int i = 0; i < NUM_RIPPLES; i++) {
if (g_ripples[i].isOn()) {
g_ripples[i].draw();
} else {
if (make_new) {
g_ripples[i].init(g_f_center_x, g_f_center_y, g_val);
make_new = false;
}
}
}
}
void AttractorSurface()
{
}
void DiffusionSurface()
{
}
void MirrorSurface()
{
}
// === Main logic ===========================================================
/** Calibrate the IR sensors
*
* Read four values from each sensor, separated by 100ms. Take the
* average to be the max, which is used in Cell::senseIR to map all
* IR readings to a canonical range.
*/
void calibrate()
{
uint16_t total_ir[NUM_CELLS];
for (int i = 0; i < NUM_CELLS; i++) total_ir[i] = 0;
for (int rounds = 0; rounds < 4; rounds++) {
for (int i = 0; i < NUM_CELLS; i++) {
uint16_t raw = g_Cells[i]->rawIR();
total_ir[i] += raw;
}
delay(100);
}
for (int i = 0; i < NUM_CELLS; i++) {
g_Cells[i]->setIRMax(total_ir[i] / 4);
g_Cells[i]->setIRMin(140);
CRGB gr = CRGB::Green;
g_Cells[i]->setAllLEDs(gr);
FastLED.show();
delay(10);
}
}
void initialize()
{
for (int i = 0; i < NUM_CELLS; i++) {
g_Cells[i] = new Cell(g_CellMap[i]);
}
// -- Calibrate the IR sensors
calibrate();
// -- Initialize the surface view
initializeSurface();
}
void changeToPattern(Mode newmode)
{
g_Mode = newmode;
for (int i = 0; i < NUM_CELLS; i++) {
g_Cells[i]->newPattern();
}
Serial.print("New pattern ");
Serial.println(newmode);
}
uint32_t last_change = 0;
void setup()
{
delay(500);
// -- Set up the pins
/*
pinMode(LED_PIN_1, OUTPUT);
pinMode(LED_PIN_2, OUTPUT);
pinMode(LED_PIN_3, OUTPUT);
*/
pinMode(17,OUTPUT);
pinMode(16,OUTPUT);
pinMode(4,OUTPUT);
pinMode(2,OUTPUT);
pinMode(15,OUTPUT);
pinMode(12,OUTPUT);
for (int i = 0; i < 4; i++) {
pinMode(IR_INPUTS[i], INPUT);
}
pinMode(IR_CHANNEL_BIT_0, OUTPUT);
pinMode(IR_CHANNEL_BIT_1, OUTPUT);
pinMode(IR_CHANNEL_BIT_2, OUTPUT);
pinMode(IR_CHANNEL_BIT_3, OUTPUT);
Serial.begin(115200);
delay(200);
// -- Add all the LEDs
LED_setup();
FastLED.setBrightness(g_Brightness);
// -- Initialize the cells and calibrate
fill_solid(g_LEDs, NUM_LEDS, CRGB::Yellow);
FastLED.show();
delay(1000);
initialize();