repos / gbc

enums3.bx

 1extrn printf;
 2
 3type enum Color {
 4    RED,
 5    GREEN,
 6    BLUE,
 7    YELLOW
 8};
 9
10type struct Shape {
11    shape_color Color;
12    x_pos       int;
13    y_pos       int;
14};
15
16Shape create_shape(c Color, x int, y int) {
17    new_shape := Shape{};
18    new_shape.shape_color = c;
19    new_shape.x_pos = x;
20    new_shape.y_pos = y;
21    return (new_shape);
22}
23
24void print_shape(s Shape) {
25    color_names := []*byte{ "RED", "GREEN", "BLUE", "YELLOW" };
26    printf("Shape: %s at (%d, %d)\n",
27           color_names[s.shape_color], s.x_pos, s.y_pos);
28}
29
30void move_shape(s *Shape, dx int, dy int) {
31    s.x_pos = s.x_pos + dx;
32    s.y_pos = s.y_pos + dy;
33}
34
35int get_shape_x(s Shape) {
36    return (s.x_pos);
37}
38
39int main() {
40    printf("Creating a RED shape...\n");
41
42    auto sp = create_shape(RED, 10, 20);
43    print_shape(sp);
44
45    printf("\nMoving shape...\n");
46    move_shape(&sp, 5, -5);
47    print_shape(sp);
48
49    printf("\nChanging color...\n");
50    colors := []Color{ RED, GREEN, BLUE, YELLOW };
51    sp.shape_color = colors[(int(sp.shape_color) + 1) % 4];
52    print_shape(sp);
53
54    printf("\nFinal X position: %d\n", get_shape_x(sp));
55
56    return (0);
57}