/* TODO: Replace these file comments with a description of what your program
* does.
*/
import acm.graphics.*;
import acm.program.*;
public class Pyramid extends GraphicsProgram {
/** Width of each brick in pixels */
private static final double BRICK_WIDTH = 30;
/** Height of each brick in pixels */
private static final double BRICK_HEIGHT = 12;
/** Number of bricks in the base of the pyramid */
private static final int BRICKS_IN_BASE = 20;
/** Coordinates of the bricks in the leftmost every row*/
private static double originalX,originalY;
public void run() {
for(int i=BRICKS_IN_BASE;i>0;i--){
createBrickRow(i);
}
}
// create a row of bricks
private void createBrickRow(int i) {
//First get the original coordinates
getOriginalCoordinate(i);
//Then create a row of bricks;
for(int j=0;j<i;j++){
double x,y;
x = originalX + j * BRICK_WIDTH;
y = originalY;
GRect brick = new GRect(x,y,BRICK_WIDTH,BRICK_HEIGHT);
add(brick);
}
}
private void getOriginalCoordinate(int i) {
// get the original coordinates(x,y);
originalX = (getWidth() - i*BRICK_WIDTH)/2;
originalY = getHeight() - (BRICKS_IN_BASE -i)*BRICK_HEIGHT;
}
}
CS106A assignment3 --problem4 Pyramid
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