1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
#include <yage/entity/component.h>
#include <yage/entity/entity.h>
#include <yage/entity/system.h>
using namespace yage;
#include <iostream>
#include <vector>
struct Position : public Component<Position> {
double x;
double y;
Position() = default;
Position(double x_, double y_) : x(x_), y(y_) {}
};
struct Size : public Component<Size> {
double width;
double height;
Size() = default;
Size(double w_, double h_) : width(w_), height(h_) {}
};
class MovementSystem : public System<MovementSystem>
{
public:
void update(double dt, EntityManager &em) override
{
std::cout << "New Iteration\n";
std::cout << " Position\n";
em.each<Position>([](Position &pos) {
std::cout << " X: " << pos.x << ", Y: " << pos.y << "\n";
++pos.x, ++pos.y;
});
std::cout << " Size\n";
em.each<Size>([](Size &size) {
std::cout << " WIDTH: " << size.width
<< ", HEIGHT: " << size.height << "\n";
size.width += 7;
size.height += 10;
});
}
};
int main()
{
EntityManager em;
Entity e1 = em.create_entity();
Entity e2 = em.create_entity();
MovementSystem s;
std::cout << "e1: " << e1 << "\n";
em.add_component(e1, std::make_unique<Size>(10, 5))
.add_component(e1, std::make_unique<Position>(1, 5))
.add_component(e2, std::make_unique<Position>(5, 2));
s.update(60, em);
s.update(60, em);
em.delete_entity(e2);
s.update(60, em);
}
|