re.ng.diag.render source code

1 module re.ng.diag.render;
2 
3 import re.core;
4 import re.ecs;
5 import re.math;
6 import re.gfx;
7 static import raylib;
8 
9 static class DebugRender {
10     public static Color debug_color = Colors.RED;
11     public static Color debug_color_mesh = Colors.BLACK;
12     public static Color debug_color_collider = Colors.GREEN;
13 
14     public static void default_debug_render(Renderable2D renderable) {
15         raylib.DrawRectangleLinesEx(renderable.bounds, 1, debug_color);
16     }
17 
18     private static void draw_bounding_box(BoundingBox raw_box, ref Transform transform, Color color) {
19         import std.math : abs;
20 
21         auto box = Bounds.calculate(raw_box, transform);
22 
23         auto size = Vector3(abs(box.max.x - box.min.x),
24                 abs(box.max.y - box.min.y), abs(box.max.z - box.min.z));
25 
26         auto center = Vector3(box.min.x + size.x / 2.0f, box.min.y + size.y / 2.0f,
27                 box.min.z + size.z / 2.0f);
28 
29         // TODO: we want something that supports transforms
30 
31         raylib.DrawCubeWires(center, size.x, size.y, size.z, color);
32     }
33 
34     // public static void default_debug_render(Renderable3D renderable) {
35     //     auto comp = cast(Component) renderable;
36     //     draw_bounding_box(renderable.bounds, comp.transform, debug_color);
37     // }
38 
39     public static void default_debug_render(Renderable3D renderable, Model model) {
40         import re.phys.collider;
41 
42         // default_debug_render(renderable);
43         auto comp = cast(Component) renderable;
44         raylib.DrawModelWiresEx(model, comp.transform.position, comp.transform.axis_angle.axis,
45                 comp.transform.axis_angle.angle * C_RAD2DEG, comp.transform.scale, debug_color_mesh);
46 
47         // check if renderable has colliders
48         auto box_colls = comp.entity.get_components!BoxCollider;
49         foreach (box; box_colls) {
50             auto raw_bounds = BoundingBox( // min
51                     Vector3(-box.size.x + box.offset.x,
52                     -box.size.y + box.offset.y, -box.size.z + box.offset.z),
53                     // max
54                     Vector3(box.size.x + box.offset.x, box.size.y + box.offset.y,
55                         box.size.z + box.offset.z));
56             draw_bounding_box(raw_bounds, comp.entity.transform, debug_color_collider);
57         }
58     }
59 }