You don't seem to know what code that you say failed to post. It is a bit depressing you can't seem to be able to cooperate with us.
So I have modified the code from your first original post, which you said works to include the suggestion that was made to you about where to put the random initialisation of the fruit position. And also to halt the code when the OLDE fails to initialise.
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <ArduinoSTL.h>
int posx = 0; // position of head of snake
int posy = 0;
int joyx = 0; // joystick position
int joyy = 0;
int fx = 2; // fruit position
int fy = 0;
int facing = 2; // snake movement direction
int timer = 0; // snake movement timer
std::vector<int> trail{0, 0, 8, 0, 16, 0, 24, 0}; // list of coordinates of the snake's tail
Adafruit_SSD1306 display(128, 64, &Wire, 4);
void setup() {
Serial.begin(9600);
pinMode(A0, INPUT);
pinMode(A1, INPUT);
fx = random(0, 16);
fy = random(0, 16);
if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // initialse display
Serial.println("Fail");
Serial.println(fx);
while(1) { } ; // do not go on from this point
}
display.clearDisplay();
display.display();
}
void loop() {
joyx = analogRead(A0);
joyy = analogRead(A1);
if (joyx > 800 && abs(joyy - 512) < 200 && facing != 0) { // if right
facing = 2;
}
if (joyy < 200 && abs(joyx - 512) < 200 && facing != 3) { // if down
facing = 1;
}
if (joyx < 200 && abs(joyy - 512) < 200 && facing != 2) { // if left
facing = 0;
}
if (joyy > 800 && abs(joyx - 512) < 200 && facing != 1) { // if up
facing = 3;
}
timer++;
if (timer == 20) { // every 200ms ish
timer = 0;
if (facing == 0 || facing == 2) { // change snake head position
posx = posx + ((facing - 1) * 8);
} else {
posy = posy + ((facing - 2) * 8);
}
trail.push_back(posx); // move snake forward
trail.push_back(posy);
trail.erase(trail.begin()); // remove last square of snake
trail.erase(trail.begin());
display.clearDisplay();
for (int i = 0; i < trail.size(); i = i + 2) { // display all snake segments
display.fillRect(trail[i], trail[i + 1], 8, 8, SSD1306_WHITE);
}
display.drawCircle((fx * 8) + 4, (fy * 8) + 4, 4, SSD1306_WHITE); // draw the fruit
display.drawRect(0, 0, 128, 64, SSD1306_WHITE); // draw the game bounding box
display.display(); // refresh display
}
delay(10);
}
Hi! I don't quite think that's called for, I am trying my best here. I directly copied that code in and uploaded it and it still didn't work, printing "Fail. 7" to the serial monitor. However, I am getting a new error:
...\Arduino\libraries\ArduinoSTL-master\src\limits:24:2: warning: #warning limits header is nowhere complete or accurate [-Wcpp]
#warning limits header is nowhere complete or accurate
^~~~~~~
If you could shed some light on what this means that would be appreciated
The reason for begin() to fail is shortage of SRAM. Adafruit_SSD1306 library allocates 1024 byte buffer at runtime.
I suspect that your STL methods are gobbling up SRAM memory.
I tried to build both of your sketches from #19 in the Web Editor.
Both failed to compile with this message.
new.cpp.o (symbol from plugin): In function `operator new(unsigned int)':
(.text+0x0): multiple definition of `std::nothrow'
/tmp/arduino-build-B26EF3A139B5BEECA4541E00A9823999/libraries/arduinostl_1_3_3/new_handler.cpp.o (symbol from plugin):(.text+0x0): first defined here
collect2: error: ld returned 1 exit status
Error during build: exit status 1
which implies that there is something wrong with the STL library code.
Tysm! I replaced my stl library with another one specifically for containers like vectors (arxcontainer) and now it works perfectly! Thank you all for your help :)
