目前我正在研究我的 4x4x4 led 立方体,我想为它编写自己的代码,但目前我一直在使用 3D 阵列。我在 void setup() 中声明了几个数组,我也尝试将它们放入 void loop() 中。尽管如此,在尝试编译时它仍然返回错误。
简而言之,代码应该生成一个具有 XYZ 值的随机点。然后它必须将其写入缓冲区,该缓冲区必须将其投影并多路复用到 LED 立方体上。
我将返回错误的行设为粗体。
错误是:
LedCube1.0.ino: In function 'void loop()':
LedCube1.0.ino:41:3: error: 'ledBuffer' was not declared in this scope
LedCube1.0.ino:41:13: error: 'xSeed' was not declared in this scope
LedCube1.0.ino:41:20: error: 'ySeed' was not declared in this scope
LedCube1.0.ino:41:27: error: 'zSeed' was not declared in this scope
LedCube1.0.ino:42:7: error: 'rainstep' was not declared in this scope
LedCube1.0.ino: In function 'int allOff()':
LedCube1.0.ino:76:9: error: 'ledBuffer' was not declared in this scope
LedCube1.0.ino: In function 'int allOn()':
LedCube1.0.ino:86:9: error: 'ledBuffer' was not declared in this scope
Error compiling.
代码:
void setup() {
//sets all pins as output
for(int a=22;a<53;a++){
pinMode(a, OUTPUT);
}
//declares the sizes of the cube
int width = 4;
int depth = 4;
int height = 4;
int ledBuffer[4][4][4] = { //creates a buffer that can store values generated by a function
{
{0,0,0,0}, {0,0,0,0}, {0,0,0,0}, {0,0,0,0}
},
{
{0,0,0,0}, {0,0,0,0}, {0,0,0,0}, {0,0,0,0}
},
{
{0,0,0,0}, {0,0,0,0}, {0,0,0,0}, {0,0,0,0},
},
{
{0,0,0,0}, {0,0,0,0}, {0,0,0,0}, {0,0,0,0},
}
};
//defines to which connector each layer is connected
int ledXY[4][4] = {
{22,24,26,28} ,
{30,32,34,36},
{23,25,27,29},
{31,33,35,37}
};
int ledZ[4] = {38,40,42,44};
//create variables to start generating raindrops
int rainstep = 0;
int xSeed = 0;
int ySeed = 0;
int zSeed = 0;
}
void loop() {
//generatedrop
ledBuffer[xSeed][ySeed][zSeed] = 0;
if (rainstep == 0)
{
int xSeed=random(0,3);
int ySeed=random(0,3);
int zSeed=random(0,3);
}
else
{
zSeed = zSeed - rainstep;
}
ledBuffer[xSeed][ySeed][zSeed] = 1;
//updatecube
for(int i=0; i<80;i++){
int currentZ = i%4;
allOff;
for(int j=0;j<4;j++){
for(int k=0; i<4;i++){
if(ledBuffer[i][j][k]==0){
digitalWrite(ledBuffer[i][j][k],HIGH);
}else{
digitalWrite(ledBuffer[i][j][k],LOW);
}
}
}
}
}
//function declares entire array 0
int allOff(){
for(int c=0;c<4;c++){
for(int d=0;d<4;d++){
for(int e=0;e<4;e++){
ledBuffer[c][d][e]=0;
}
}
}
};
//function declares entire array 1
int allOn(){
for(int c=0;c<4;c++){
for(int d=0;d<4;d++){
for(int e=0;e<4;e++){
ledBuffer[c][d][e]=1;
}
}
}
};
I re
有人可以帮助我,或者至少为我指明正确的方向。
最佳答案
在 void loop()
下,您在 中声明了
block ,它使变量成为该 if block 的局部变量,这意味着当您退出 if block 时它们会超出范围。在 if block 之前(外部)声明它们,而不是在 xSeed
、ySeed
和 zSeed
>ifledBuffer
之前,在 void loop()
函数的开头,因为您在尝试使用这些变量之前告诉编译器它们存在,因此编译器的消息是它们“未在此范围内声明”
编辑
此外,您似乎希望所有这些函数都在同一个 ledBuffer
3D 数组上运行。您应该考虑将其声明为全局变量(如果您使用的是 C),或者如果您使用的是 C++,或许可以考虑将其设为类,并将 ledBuffer
作为属性/字段。
关于c++ - Arduino 的 3D 阵列,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29662007/