1 #ifndef BLANK_MODEL_COLLISIONBOUNDS_HPP_
2 #define BLANK_MODEL_COLLISIONBOUNDS_HPP_
4 #include "../graphics/BlockMesh.hpp"
5 #include "../graphics/EntityMesh.hpp"
6 #include "../graphics/OutlineMesh.hpp"
16 struct CollisionBounds {
18 /// the number of vertices (and normals) this shape has
19 size_t VertexCount() const noexcept { return vtx_pos.size(); }
20 /// the number of vertex indices this shape has
21 size_t VertexIndexCount() const noexcept { return vtx_idx.size(); }
23 const EntityMesh::Normal &VertexNormal(size_t idx) const noexcept { return vtx_nrm[idx]; }
24 EntityMesh::Normal VertexNormal(
25 size_t idx, const glm::mat4 &transform
27 return EntityMesh::Normal(transform * glm::vec4(vtx_nrm[idx], 0.0f));
30 /// fill given buffers with this shape's elements with an
31 /// optional transform and offset
33 EntityMesh::Buffer &out,
34 float tex_offset = 0.0f
37 EntityMesh::Buffer &out,
38 const glm::mat4 &transform,
39 float tex_offset = 0.0f,
40 EntityMesh::Index idx_offset = 0
43 BlockMesh::Buffer &out,
44 const glm::mat4 &transform,
45 float tex_offset = 0.0f,
46 BlockMesh::Index idx_offset = 0
49 /// the number of vertices this shape's outline has
50 size_t OutlineCount() const { return out_pos.size(); }
51 /// the number of vertex indices this shape's outline has
52 size_t OutlineIndexCount() const { return out_idx.size(); }
54 /// fill given buffers with this shape's outline's elements
55 void Outline(OutlineMesh::Buffer &out) const;
57 /// Check if given ray would pass though this shape if it were
58 /// transformed with given matrix.
59 /// If true, dist and normal hold the intersection distance and
60 /// normal, otherwise their content is undefined.
61 virtual bool Intersects(
68 /// Check for intersection with given OBB.
69 /// The OBB is defined by box and box_M, M is applied to the shape.
70 virtual bool Intersects(
73 const glm::mat4 &box_M,
80 const EntityMesh::Positions &pos,
81 const EntityMesh::Normals &nrm,
82 const EntityMesh::Indices &idx);
84 const BlockMesh::TexCoords &tex_coords);
86 const OutlineMesh::Positions &pos,
87 const OutlineMesh::Indices &idx);
90 EntityMesh::Positions vtx_pos;
91 EntityMesh::Normals vtx_nrm;
92 EntityMesh::Indices vtx_idx;
94 BlockMesh::TexCoords vtx_tex_coords;
96 OutlineMesh::Positions out_pos;
97 OutlineMesh::Indices out_idx;