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Adding comments to problem 1

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This commit is contained in:
Denis Nuțiu 2016-04-21 17:12:39 +03:00
parent 2f42f3b594
commit 8c7f343ac7
1 changed files with 14 additions and 1 deletions
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15
lab9/1.c
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@ -7,6 +7,11 @@
// <polyline points="50,150 50,200 200,200 200,100" stroke="red" stroke-width="4" fill="none" /> // <polyline points="50,150 50,200 200,200 200,100" stroke="red" stroke-width="4" fill="none" />
// <line x1="50" y1="50" x2="200" y2="200" stroke="blue" stroke-width="4" /> // <line x1="50" y1="50" x2="200" y2="200" stroke="blue" stroke-width="4" />
/* This function draws the disks. It stops when it has drawn all the disks
* or before getting to a minimum y, which represents the height of the băț
* after that it picks a random color from an array of predefined colors and
* draws the disks before calling itself recusively.
*/
void draw_disks(FILE * file, int disks, int peg, int width, int y) { void draw_disks(FILE * file, int disks, int peg, int width, int y) {
if ( !disks ) { return; } // no more disks to draw if ( !disks ) { return; } // no more disks to draw
if ( y < 120) { return; } // keeps the peg from overflowing; if ( y < 120) { return; } // keeps the peg from overflowing;
@ -20,13 +25,21 @@ void draw_disks(FILE * file, int disks, int peg, int width, int y) {
draw_disks(file, disks - 1, peg, width - width / 4, y - 21); draw_disks(file, disks - 1, peg, width - width / 4, y - 21);
} }
/*
* This functions draws the bețe by using recursion, it stops when pegs is 0
* and it places them at 100px distance between them. (i think)
*/
void draw_pegs(FILE * file, int pegs, int width) { void draw_pegs(FILE * file, int pegs, int width) {
if ( !pegs ) { return; } // exit function if ( !pegs ) { return; } // exit function
fprintf(file, "<rect x=\"%d\" y=\"120\" width=\"15\" height=\"130\" "\ fprintf(file, "<rect x=\"%d\" y=\"120\" width=\"15\" height=\"130\" "\
"fill=\"firebrick\" />\r\n", width); "fill=\"firebrick\" />\r\n", width);
draw_pegs(file, pegs - 1, width + 100); draw_pegs(file, pegs - 1, width + 100);
} }
/*
* This function draws the whole thing.
* First it sets up the secene, it calls the function that draws "bețe",
* and after it calls the function that draws the disks.
*/
void draw_peg_scene(FILE * file, int pegs, int disks) { void draw_peg_scene(FILE * file, int pegs, int disks) {
int scene_width = pegs * 100; int scene_width = pegs * 100;
fprintf(file, "<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\">\r\n"); // start fprintf(file, "<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\">\r\n"); // start