我正在从 Java 世界迁移到 C++,并试图移植一个示例。我收到一个错误,因为我没有正确访问我的数组。我尝试使用 -> 和 * 符号指向它们,但我很难理解它。我相信这是多次重复的相同基本错误。我已经强调了错误开始的三个区域,不包括相同错误的倍数。任何帮助都会对我理解该主题大有帮助。谢谢!
//--------------------------------------------------------------
void testApp::setup(){
colorCount = 20;
int *hueValues = new int[colorCount];
int *saturationValues = new int[colorCount];
int *brightnessValues = new int[colorCount];
ofColor::fromHsb(360, 100, 100, 100);
ofFill();
}
//--------------------------------------------------------------
void testApp::update(){
}
//--------------------------------------------------------------
void testApp::draw(){
// ------ colors ------
// create palette
for (int i=0; i<colorCount; i++) {
if (i%2 == 0) {
hueValues[i] = (int) random(0,360); // invalid types 'int[int]' fr array subscript
saturationValues[i] = 100;
brightnessValues[i] = (int) random(0,100);
}
else {
hueValues[i] = 195;
saturationValues[i] = (int) random(0,100);
brightnessValues[i] = 100;
}
}
// ------ area tiling ------
// count tiles
int counter = 0;
// row count and row height
int rowCount = (int)random(5,40); // At this point in file
float rowHeight = (float)ofGetHeight()/(float)rowCount;
for(int i=0; i<rowCount; i++) {
// seperate each line in parts
// how many fragments
int partCount = i+1;
parts = new float[0]; // Cannot convert "float" to "float" in assignment
for(int ii=0; ii<partCount; ii++) {
// sub fragments or not?
if (random(1.0) < 0.075) {
// take care of big values
int fragments = (int)random(2,20);
partCount = partCount + fragments;
for(int iii=0; iii<fragments; iii++) {
parts = append(parts, random(2));
}
}
else {
parts = append(parts, random(2,20));
}
}
// add all subparts
float sumPartsTotal = 0;
for(int ii=0; ii<partCount; ii++) sumPartsTotal += parts[ii];
// draw rects
float sumPartsNow = 0;
for(int ii=0; ii<parts.length; ii++) {
// get component color values
int index = counter % colorCount;
fill(hueValues[index],saturationValues[index],brightnessValues[index]);
sumPartsNow += parts[ii];
rect(map(sumPartsNow, 0,sumPartsTotal, 0,width),rowHeight*i,
map(parts[ii], 0,sumPartsTotal, 0,width)*-1,rowHeight);
counter++;
}
}
}