/*
FSOSS 2010
Example of line, ArrayList, mousePressed, mouseReleased
*/
boolean drawingLine = false;
float lineX;
float lineY;
ArrayList lineCoords;
void setup(){
size(300, 300);
lineCoords = new ArrayList();
}
void draw(){
background(33, 66, 99);
for(int i = 0; i < lineCoords.size(); i += 4){
line( (Float)lineCoords.get(i),
(Float)lineCoords.get(i+1),
(Float)lineCoords.get(i+2),
(Float)lineCoords.get(i+3));
}
if(drawingLine){
line(lineX, lineY, mouseX, mouseY);
}
}
/*
Function gets called once, as soon as the
mouse button is pressed.
*/
void mousePressed(){
drawingLine = true;
lineX = (float) mouseX;
lineY = (float) mouseY;
}
/*
Function gets called once, as soon as the
mouse button is released.
*/
void mouseReleased(){
drawingLine = false;
lineCoords.add(lineX);
lineCoords.add(lineY);
lineCoords.add((float) mouseX);
lineCoords.add((float) mouseY);
}