Difference between revisions of "CSC103 Homework 5 Solution 2012"
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<code><pre> | <code><pre> | ||
+ | // solution program for Homework #5 | ||
+ | // setup() | ||
void setup() { | void setup() { | ||
size( 500, 500 ); | size( 500, 500 ); | ||
smooth(); | smooth(); | ||
} | } | ||
+ | |||
+ | // draw(): called 30 times/sec | ||
+ | // draws horizontal rectangles with varying colors in background | ||
+ | // draws circles that fit exactly in rectangles on the left and right sides | ||
+ | // circles on the left appear only if they're below the mouse, while | ||
+ | // circles on the right appear only if they're above the mouse. | ||
void draw() { | void draw() { | ||
+ | // erase the window | ||
background( 200 ); | background( 200 ); | ||
+ | // draw stacked rectangles from 0 to 500, in increment of 20 | ||
for ( int x=0; x < 500; x = x+20 ) { | for ( int x=0; x < 500; x = x+20 ) { | ||
+ | // pick a color whose green contents vary with x | ||
fill( x/2, 255-x, 0 ); | fill( x/2, 255-x, 0 ); | ||
+ | // position the rectangle | ||
rect( 0, x, 500, 20 ); | rect( 0, x, 500, 20 ); | ||
+ | |||
+ | // pick an orange color | ||
fill( 250, 200, 8 ); | fill( 250, 200, 8 ); | ||
+ | |||
+ | // if left-circle center is above vertical position of mouse, draw it | ||
if ( mouseY < x ) { | if ( mouseY < x ) { | ||
ellipse( 20, x+10, 20, 20 ); | ellipse( 20, x+10, 20, 20 ); | ||
} | } | ||
+ | // otherwise if right-circle center is below vertical position of the mouse, draw it | ||
else { | else { | ||
ellipse( 500-20, x+10, 20, 20 ); | ellipse( 500-20, x+10, 20, 20 ); |
Revision as of 17:10, 7 March 2012
--D. Thiebaut 17:02, 7 March 2012 (EST)
// solution program for Homework #5
// setup()
void setup() {
size( 500, 500 );
smooth();
}
// draw(): called 30 times/sec
// draws horizontal rectangles with varying colors in background
// draws circles that fit exactly in rectangles on the left and right sides
// circles on the left appear only if they're below the mouse, while
// circles on the right appear only if they're above the mouse.
void draw() {
// erase the window
background( 200 );
// draw stacked rectangles from 0 to 500, in increment of 20
for ( int x=0; x < 500; x = x+20 ) {
// pick a color whose green contents vary with x
fill( x/2, 255-x, 0 );
// position the rectangle
rect( 0, x, 500, 20 );
// pick an orange color
fill( 250, 200, 8 );
// if left-circle center is above vertical position of mouse, draw it
if ( mouseY < x ) {
ellipse( 20, x+10, 20, 20 );
}
// otherwise if right-circle center is below vertical position of the mouse, draw it
else {
ellipse( 500-20, x+10, 20, 20 );
}
}
}