function colorRect(topLeftX, topLeftY, boxWidth, boxHeight, fillColor) {
  canvasContext.fillStyle = fillColor;
  canvasContext.fillRect(topLeftX, topLeftY, boxWidth, boxHeight); 
}

function colorCircle(centerX, centerY, radius, fillColor) {
  canvasContext.fillStyle = fillColor;
  canvasContext.beginPath();
  canvasContext.arc(centerX, centerY, radius, 0, Math.PI*2, true);
  canvasContext.fill();
}

function colorText(showWords, textX, textY, fillColor) {
  canvasContext.fillStyle = fillColor;
  canvasContext.fillText(showWords, textX, textY);
}

function drawBitmapPositionedByTopLeftCorner(graphic, atX, atY) { ////
  canvasContext.drawImage(graphic,atX,atY); ////
} ////

function drawBitmapCenteredAtLocation(graphic, atX, atY) { ////
  canvasContext.drawImage(graphic,atX-graphic.width/2,atY-graphic.height/2); ////
} ////