Link to the project or level: Text Box Bug
What I expect to happen: As I read the documentation for the text() block, the 4th and 5th parameters should define the lower right corner of a text box, and the text (1st parameter) should be wrapped within that box.
What actually happens: The text is wrapped, but the right margin is not respected.
What I’ve tried: I reread the documentation several times 
, then I created a simple test case based on the sample code in the docs (above) and experimented with the values of textW and textH to see if I could discern a pattern. So far I’m stumped.
Here’s the code:
var textX = 100;
var textY = 100;
var textW = 150;
var textH = 200;
var textBoxContents = "I think this text should be left aligned in a box with its upper left corner at ("
+ textX + ", " + textY
+ ") and its lower right corner at ("
+ (textX + textW) + ", " + (textY + textH)
+ "). But, it's not, the text is wrapped, but it's outside of the right margin.\n\n"
+ "What am I doing wrong?";
// Margins to show where I think the text should be.
stroke("red");
line(textX, 0, textX, 400); // Left
line(0, textY, 400, textY); // Top
line(textX + textW, 0, textX + textW, 400); // Right
line(0, textY + textH, 400, textY + textH); // Bottom
// Sample text
noStroke();
fill("black");
text(textBoxContents, textX, textY, textX + textW, textY + textH);
.