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B32 in_rect(V2 pos, V2 start, V2 end)
{
B32 res;
res = ((pos.x > start.x) && (pos.x < end.x) &&
(pos.y > start.y) && (pos.y < end.y));
return res;
}
B32 button(Window *wnd, U32 shader, Input *input, Arena *arena,
Str8 name, V2 center, F32 w, F32 h)
{
B32 res;
Mesh *quad;
V2 start, end;
MAT4 model;
Str8 info;
res = 0;
quad = mesh_gen_quad(arena, v3fromv2(center), V3_ZERO, w, h);
shader_set_4fv(shader, "color", v4(1.0f, 0.0f, 0.0f, 1.0f));
start = v2(center.x-w/2.0f, center.y-h/2.0f);
end = v2(center.x+w/2.0f, center.y+h/2.0f);
if (in_rect(input->mouse_pos, start, end) &&
!input->capture_mouse)
{
shader_set_4fv(shader, "color", v4(0.0f, 0.0f, 1.0f, 1.0f));
if (key_first_press(input->mouse_left))
res = 1;
}
model = mat4transl(MAT4_IDENTITY, v3(center.x, wnd->height-center.y, 0.0f));
shader_set_mat4fv(shader, "model", model);
mesh_draw(quad);
mesh_clear(quad);
return res;
}
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