• Write your own picture-drawing function with value-passed parameters.
• Write a function to make wallpaper using copies of your picture.
• Practice loops.

Activities
Copy the Wallpaper folder.
Run the application program Wallpaper.
Use the project Wallpaper.mu and shell Wallpaper.cp to write your code.

Design your own scalable picture function.
You must draw your picture in terms of x, y, width, and height.

Write the body of the Wallpaper function.
Introduce variables width and height.

width  = 400 / NumAcross;  // window is 400 wide
height = 400 / NumDown;    // window is 400 high

The House:

void House(int x, int y, int width, int height)
{		// Draws a house with lower left corner (x,y)
		// and given width and height
int baseTop = y - 2*height/3; // top of the bottom of house, base of roof

PaintRect(x, y, x + width +1, baseTop); // bottom of the house
 					// the +1 makes roof fit better

int midx = x + width/2;              		// halfway across the house
DrawLine(x , baseTop, midx, y - height);     	// left side of roof
DrawLine(x + width, baseTop, midx, y - height);	// right side of roof
} 

Last Updated: October 3, 1997 10:11 pm by