68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
#include <stdio.h>
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#include <ctype.h>
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// Vergleich zweier Strings ohne Beachtung der Groß-/Kleinschreibung
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int string_equals_ignore_case(const char *a, const char *b) {
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while (*a && *b) {
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if (tolower((unsigned char)*a) != tolower((unsigned char)*b)) {
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return 0;
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}
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a++;
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b++;
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}
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return *a == *b;
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}
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// Prüft, ob die Eingabe eine erlaubte Grundfarbe ist
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int is_valid_color(const char *color) {
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return string_equals_ignore_case(color, "Rot") ||
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string_equals_ignore_case(color, "Gruen") ||
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string_equals_ignore_case(color, "Violett");
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}
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// Gibt die Mischfarbe zurück
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const char* mix_colors(const char *color1, const char *color2) {
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if (string_equals_ignore_case(color1, "Rot") && string_equals_ignore_case(color2, "Rot")) {
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return "Rot";
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}
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if ((string_equals_ignore_case(color1, "Rot") && string_equals_ignore_case(color2, "Gruen")) ||
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(string_equals_ignore_case(color1, "Gruen") && string_equals_ignore_case(color2, "Rot"))) {
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return "Gelb";
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}
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if ((string_equals_ignore_case(color1, "Rot") && string_equals_ignore_case(color2, "Violett")) ||
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(string_equals_ignore_case(color1, "Violett") && string_equals_ignore_case(color2, "Rot"))) {
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return "Purpur";
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}
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if (string_equals_ignore_case(color1, "Gruen") && string_equals_ignore_case(color2, "Gruen")) {
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return "Gruen";
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}
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if ((string_equals_ignore_case(color1, "Gruen") && string_equals_ignore_case(color2, "Violett")) ||
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(string_equals_ignore_case(color1, "Violett") && string_equals_ignore_case(color2, "Gruen"))) {
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return "Blau";
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}
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if (string_equals_ignore_case(color1, "Violett") && string_equals_ignore_case(color2, "Violett")) {
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return "Violett";
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}
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}
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int main() {
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char user_colors[2][20]; // Platz für 2 Farben
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int attempts = 0;
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while (attempts < 2) {
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printf("Bitte gib eine Grundfarbe (Rot, Gruen oder Violett) ein: ");
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scanf("%19s", user_colors[attempts]);
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while (getchar() != '\n'); // Eingabepuffer leeren
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if (is_valid_color(user_colors[attempts])) {
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printf("Du hast %s gewaehlt.\n", user_colors[attempts]);
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attempts++;
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} else {
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printf("Ungueltige Eingabe. Bitte versuche es erneut.\n");
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}
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}
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printf("Die Mischfarbe ist dann: %s\n", mix_colors(user_colors[0], user_colors[1]));
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return 0;
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} |