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june's Avatar june revised this gist 1 week ago. Go to revision

1 file changed, 271 insertions

greg.cpp(file created)

@@ -0,0 +1,271 @@
1 + #include <M5Unified.h>
2 + #include <M5GFX.h>
3 +
4 + template<uint32_t size>
5 + struct stack {
6 + int data[size] = {};
7 + uint32_t top = 0;
8 + inline void push(int symbol) {
9 + if(!full()) {
10 + data[top++] = symbol;
11 + }
12 + }
13 + inline int pop() {
14 + if(!empty()) {
15 + return data[--top];
16 + }
17 + return 0;
18 + }
19 + inline int peek() {
20 + if(!empty()) {
21 + return data[top - 1];
22 + }
23 + return 0;
24 + }
25 + inline bool empty() {
26 + return top == 0;
27 + }
28 + inline bool full() {
29 + return top >= size;
30 + }
31 + inline void clear() {
32 + top = 0;
33 + }
34 + void print() {
35 + for(uint32_t cursor = 0; cursor < top; cursor++) {
36 + Serial.printf("%d ", data[cursor]);
37 + }
38 + Serial.println();
39 + }
40 + };
41 +
42 + template<uint32_t stack_size, uint32_t program_size>
43 + struct generator {
44 + stack<stack_size> stack;
45 + char program[program_size] = {};
46 + uint32_t length = program_size;
47 + generator() {
48 + randomize();
49 + }
50 + generator(const char* program) {
51 + uint32_t cursor = 0;
52 + while(program[cursor] != '\0' && cursor < program_size - 1) {
53 + this->program[cursor] = program[cursor];
54 + cursor++;
55 + }
56 + length = cursor;
57 + this->program[length + 1] = '\0';
58 + }
59 + char random_command() {
60 + const char commands[] = "0123456789abcdefxywhtrsopzq_=+*&|^~<>-/%";
61 + return commands[random(0, sizeof(commands) - 1)];
62 + }
63 + void randomize() {
64 + length = random(2, program_size-1);
65 + for(uint32_t cursor = 0; cursor < length; cursor++) {
66 + program[cursor] = random_command();
67 + }
68 + program[length] = '\0';
69 + }
70 + int run(uint32_t x, uint32_t y, uint32_t w, uint32_t h, uint32_t t, int previous, uint16_t tx, uint16_t ty) {
71 + for(uint32_t cursor = 0; cursor < length; cursor++) {
72 + char instruction = program[cursor];
73 + if(instruction >= '0' && instruction <= '9') {
74 + stack.push(instruction - '0');
75 + } else if(instruction >= 'a' && instruction <= 'f') {
76 + stack.push((instruction - 'a') + 10);
77 + } else {
78 + switch(instruction) {
79 + case 'x': stack.push(x); break;
80 + case 'y': stack.push(y); break;
81 + case 'w': stack.push(w); break;
82 + case 'h': stack.push(h); break;
83 + case 't': stack.push(t); break;
84 + case 'r': stack.push(random()); break;
85 + case 's': stack.push(sin(stack.pop()) * INT_MAX); break;
86 + case 'o': stack.push(cos(stack.pop()) * INT_MAX); break;
87 + case 'p': stack.push(previous); break;
88 + case 'z': stack.push(tx); break;
89 + case 'q': stack.push(ty); break;
90 + case '_': stack.push(abs(stack.pop())); break;
91 + case '=': stack.push(stack.pop() == stack.pop()); break;
92 + case '+': stack.push(stack.pop() + stack.pop()); break;
93 + case '*': stack.push(stack.pop() * stack.pop()); break;
94 + case '&': stack.push(stack.pop() & stack.pop()); break;
95 + case '|': stack.push(stack.pop() | stack.pop()); break;
96 + case '^': stack.push(stack.pop() ^ stack.pop()); break;
97 + case '~': stack.push(~stack.pop()); break;
98 + case '<': {
99 + int first = stack.pop();
100 + int second = stack.pop();
101 + stack.push(second < first);
102 + break;
103 + }
104 + case '>': {
105 + int first = stack.pop();
106 + int second = stack.pop();
107 + stack.push(second < first);
108 + break;
109 + }
110 + case '-': {
111 + int first = stack.pop();
112 + int second = stack.pop();
113 + if(first == 0) {
114 + first = -1;
115 + }
116 + if(second == 0) {
117 + second = -1;
118 + }
119 + stack.push(second - first);
120 + break;
121 + }
122 + case '/': {
123 + int first = stack.pop();
124 + int second = stack.pop();
125 + stack.push(second / first);
126 + break;
127 + }
128 + case '%': {
129 + int first = stack.pop();
130 + int second = stack.pop();
131 + stack.push(second % first);
132 + break;
133 + }
134 + default: break;
135 + }
136 + }
137 + }
138 + return stack.pop();
139 + }
140 + void print(uint32_t size) {
141 + M5.Display.pushState();
142 + M5.Display.writeFillRect(0, M5.Display.height() - (size * 8), M5.Display.width(), M5.Display.height(), TFT_BLACK);
143 + M5.Display.setCursor(0, M5.Display.height() - (size * 8) + 4);
144 + M5.Display.setTextSize(3);
145 + M5.Display.setTextWrap(true);
146 + M5.Display.setTextColor(TFT_DARKGREY, TFT_BLACK);
147 + for(uint32_t instruction = 0; instruction < length; instruction++) {
148 + M5.Display.print(program[instruction]);
149 + }
150 + M5.Display.popState();
151 + }
152 + };
153 +
154 + uint32_t width = 0;
155 + uint32_t height = 0;
156 + uint32_t size = 10;
157 + uint32_t tile_size = 1;
158 + uint32_t t = 0;
159 + uint32_t cooldown = 0;
160 + uint8_t wait = 25;
161 + int8_t offset = 1;
162 + generator<256, 53*3> pixel("xy+xy-&9f+%9>8-");
163 +
164 + inline bool shaken(float ax, float ay, float az) {
165 + return (abs(ax) >= 1.75) || (abs(ay) >= 1.5) || (abs(az) >= 1.75);
166 + }
167 +
168 + void intro() {
169 + M5.Display.setTextSize(4);
170 + M5.Display.drawCenterString("For Greg", M5.Display.width() / 2, (M5.Display.height() / 2) - 16);
171 + M5.Display.drawCenterString("From Nouveau", M5.Display.width() / 2, (M5.Display.height() / 2) + 16);
172 + M5.Display.setTextColor(random(0, UINT16_MAX), random(0, UINT16_MAX));
173 + delay(5000);
174 + M5.Display.clear();
175 + M5.Display.setTextSize(size);
176 + int previous = pixel.run(0, 0, width, height, 0, 0, 0, 0);
177 + for(uint32_t x = 0; x < width; x++) {
178 + for(uint32_t y = 0; y < height; y++) {
179 + const int value = pixel.run(x, y, width, height, t, previous, 0, 0);
180 + const int character = (abs(value % 17)) + 127;
181 + M5.Display.drawChar(character, x * tile_size, y * tile_size);
182 + previous = value;
183 + delay(1);
184 + }
185 + }
186 + delay(1000);
187 + M5.Display.setTextSize(4);
188 + M5.Display.setTextColor(TFT_CYAN, TFT_DARKCYAN);
189 + M5.Display.drawCenterString(" ", M5.Display.width() / 2, (M5.Display.height() / 2) - 48);
190 + M5.Display.drawCenterString(" ALL THESE WORLDS ", M5.Display.width() / 2, (M5.Display.height() / 2) - 16);
191 + M5.Display.drawCenterString(" ARE YOURS ", M5.Display.width() / 2, (M5.Display.height() / 2) + 16);
192 + M5.Display.drawCenterString(" ", M5.Display.width() / 2, (M5.Display.height() / 2) + 48);
193 + delay(5000);
194 + pixel.randomize();
195 + M5.Display.fillRect(0, 0, M5.Display.width(), M5.Display.height(), TFT_BLACK);
196 + delay(1000);
197 + }
198 +
199 + void setup(void) {
200 + Serial.begin(9600);
201 + M5.begin();
202 + M5.Display.setRotation(1);
203 + M5.Display.setFont(&fonts::Font8x8C64);
204 + M5.Display.waitDisplay();
205 + size = 2;
206 + tile_size = size * 8;
207 + width = M5.Display.width() / tile_size;
208 + height = (M5.Display.height() / tile_size) - 1;
209 + intro();
210 + size = 10;
211 + tile_size = size * 8;
212 + width = M5.Display.width() / tile_size;
213 + height = (M5.Display.height() / tile_size) - 1;
214 + M5.Display.setTextSize(size);
215 + M5.Display.setTextColor(random(), random());
216 + pixel.print(size);
217 + }
218 +
219 + void loop(void) {
220 + lgfx::touch_point_t point = {};
221 + float ax = 0, ay = 0, az = 0;
222 + bool touch = false;
223 + M5.Imu.update();
224 + M5.Imu.getAccel(&ax, &ay, &az);
225 + if(M5.Display.getTouchRaw(&point, 1)) {
226 + M5.Display.convertRawXY(&point, 1);
227 + touch = true;
228 + }
229 + M5.Display.startWrite();
230 + int previous = pixel.run(0, 0, width, height, 0, 0, 0, 0);
231 + bool alive = false;
232 + for(uint32_t x = 0; x < width; x++) {
233 + for(uint32_t y = 0; y < height; y++) {
234 + const int value = pixel.run(x, y, width, height, t, previous, map(point.x, 0, M5.Display.width(), 0, width), map(point.y, 0, M5.Display.height(), 0, height));
235 + const int character = (abs(value % 17)) + 127;
236 + M5.Display.drawChar(character, x * tile_size, y * tile_size);
237 + if(((abs(previous % 17)) + 127) != character) {
238 + alive = true;
239 + }
240 + previous = value;
241 + }
242 + }
243 + M5.Display.endWrite();
244 + t += offset;
245 + if(wait > 0) {
246 + wait--;
247 + }
248 + if(cooldown > 0) {
249 + cooldown--;
250 + }
251 + if(touch) {
252 + cooldown = 100;
253 + }
254 + if(!alive) {
255 + wait = 0;
256 + }
257 + if((shaken(ax, ay, az) && !touch) || (wait == 0 && (!alive || cooldown == 0))) {
258 + pixel.randomize();
259 + if(alive) {
260 + M5.Display.setTextColor(random(), random());
261 + }
262 + wait = 50;
263 + pixel.print(size);
264 + t = 0;
265 + }
266 + if(t >= 1000000) {
267 + offset = -1;
268 + } else if(t == 0) {
269 + offset = 1;
270 + }
271 + }
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