created animated cow

TODO.md

@@ -36,11 +36,11 @@
 
 ## 4. C Programming
 
-- [ ] **`newcow.c`**
-  - [ ] Create `affiche_vache` function: displays a cow without a speech bubble.
-  - [ ] Compile and run.
+- [x] **`newcow.c`**
+  - [x] Create `affiche_vache` function: displays a cow without a speech bubble.
+  - [x] Compile and run.
 - [ ] **Add Features**
-  - [ ] Support `-e`/ `--eyes` option to change cow's eyes.
+  - [x] Support `-e`/ `--eyes` option to change cow's eyes.
   - [ ] Implement other options from `cowsay` manpage.
 - [ ] **New Feature**
   - [ ] Implement a new feature (e.g., `--tail L` to adjust tail length, or display a herd).

src/C/newcow2.c

@@ -0,0 +1,101 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+void update() { printf("\033[H\033[J"); }
+
+void gotoxy(int x, int y) { printf("\033[%d;%dH", y, x); }
+
+void affiche_vache(int x, int y, const char *yeux, const char *langue) {
+  gotoxy(x, y);
+  printf("        \\   ^__^\n");
+
+  gotoxy(x, y + 1);
+  printf("         \\  (%s)\\_______\n", yeux);
+
+  gotoxy(x, y + 2);
+  printf("            (__)\\       )\\/\\\\\n");
+
+  gotoxy(x, y + 3);
+  printf("             %s ||----w |\n", langue);
+
+  gotoxy(x, y + 4);
+  printf("                ||     ||\n");
+
+  fflush(stdout);
+}
+
+void animation_blink() {
+  for (int i = 0; i < 12; i++) {
+    update();
+    if (i % 4 == 0)
+      affiche_vache(5, 3, "--", "  ");
+    else
+      affiche_vache(5, 3, "oo", "  ");
+    usleep(250000);
+  }
+}
+
+void animation_tongue() {
+  for (int i = 0; i < 12; i++) {
+    update();
+    if (i % 2 == 0)
+      affiche_vache(5, 3, "oo", "U ");
+    else
+      affiche_vache(5, 3, "oo", "  ");
+    usleep(250000);
+  }
+}
+
+void animation_walk() {
+  for (int x = 1; x <= 40; x += 2) {
+    update();
+    if ((x / 2) % 2 == 0)
+      affiche_vache(x, 3, "oo", "  ");
+    else
+      affiche_vache(x, 3, "OO", "  ");
+    usleep(120000);
+  }
+}
+
+void animation_bounce() {
+  int x = 20;
+  for (int i = 0; i < 18; i++) {
+    update();
+    int y;
+    if (i % 4 == 0 || i % 4 == 2)
+      y = 3;
+    else
+      y = 2;
+    affiche_vache(x, y, "oo", "  ");
+    usleep(180000);
+  }
+}
+
+void usage(char *prog) {
+  printf("Usage : %s [blink|tongue|walk|bounce]\n", prog);
+}
+
+int main(int argc, char *argv[]) {
+  if (argc != 2) {
+    usage(argv[0]);
+    return 1;
+  }
+
+  if (strcmp(argv[1], "blink") == 0) {
+    animation_blink();
+  } else if (strcmp(argv[1], "tongue") == 0) {
+    animation_tongue();
+  } else if (strcmp(argv[1], "walk") == 0) {
+    animation_walk();
+  } else if (strcmp(argv[1], "bounce") == 0) {
+    animation_bounce();
+  } else {
+    usage(argv[0]);
+    return 1;
+  }
+
+  gotoxy(1, 10);
+  return 0;
+}