Michael Fabian Dirks
321 lines
7.4 KiB
C++
321 lines
7.4 KiB
C++
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#include "std.h"
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#include "meshmodel.h"
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#include "meshcollider.h"
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extern gxGraphics *gx_graphics;
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struct MeshModel::Rep : public Surface::Monitor {
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int ref_cnt;
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mutable Box box, cullBox;
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mutable MeshCollider *collider;
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mutable int box_valid, coll_valid, norms_valid;
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SurfaceList surfaces;
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vector<Transform> bone_tforms;
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Rep() :
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ref_cnt(1), collider(0), box_valid(-1), coll_valid(-1), norms_valid(-1) {
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geom_changes = brush_changes = 0;
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}
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~Rep() {
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delete collider;
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for (int k = 0; k < surfaces.size(); ++k) delete surfaces[k];
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}
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Surface *createSurface(const Brush &b) {
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Surface *t = new Surface(this);
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surfaces.push_back(t);
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t->setBrush(b);
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return t;
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}
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Surface *findSurface(const Brush &b) {
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for (int k = 0; k < surfaces.size(); ++k) {
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Surface *s = surfaces[k];
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if (s->getBrush() < b || b < s->getBrush()) continue;
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return s;
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}
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return 0;
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}
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void paint(const Brush &b) {
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for (int k = 0; k < surfaces.size(); ++k) {
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Surface *s = surfaces[k];
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s->setBrush(b);
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}
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}
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void add(Rep *t) {
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if (cullBox.empty() && !t->cullBox.empty()) {
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setCullBox(t->cullBox);
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}
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for (int k = 0; k < t->surfaces.size(); ++k) {
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Surface *src = t->surfaces[k];
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Surface *dest = findSurface(src->getBrush());
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if (!dest) dest = createSurface(src->getBrush());
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int j;
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for (j = 0; j < src->numTriangles(); ++j) {
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Surface::Triangle t = src->getTriangle(j);
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t.verts[0] += dest->numVertices();
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t.verts[1] += dest->numVertices();
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t.verts[2] += dest->numVertices();
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dest->addTriangle(t);
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}
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for (j = 0; j < src->numVertices(); ++j) {
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dest->addVertex(src->getVertex(j));
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}
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}
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}
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void transform(const Transform &t) {
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Matrix co = t.m.cofactor();
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for (int k = 0; k < surfaces.size(); ++k) {
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Surface *s = surfaces[k];
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for (int j = 0; j < s->numVertices(); ++j) {
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const Vector &v = s->getVertex(j).coords;
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const Vector &n = s->getVertex(j).normal;
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s->setCoords(j, t*v);
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s->setNormal(j, co*n);
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}
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}
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}
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void flip() {
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for (int k = 0; k < surfaces.size(); ++k) {
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Surface *s = surfaces[k];
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int j;
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for (j = 0; j < s->numVertices(); ++j) {
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s->setNormal(j, -s->getVertex(j).normal);
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}
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for (j = 0; j < s->numTriangles(); ++j) {
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Surface::Triangle t = s->getTriangle(j);
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std::swap(t.verts[1], t.verts[2]);
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s->setTriangle(j, t);
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}
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}
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}
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void setCullBox(const Box &t) {
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cullBox = t;
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}
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void updateNormals() {
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if (norms_valid != geom_changes) {
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for (int k = 0; k < surfaces.size(); ++k) {
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Surface *s = surfaces[k];
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s->updateNormals();
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}
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norms_valid = geom_changes;
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}
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}
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const Box &getBox()const {
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if (box_valid != geom_changes) {
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box.clear();
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for (int k = 0; k < surfaces.size(); ++k) {
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Surface *s = surfaces[k];
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for (int j = 0; j < s->numVertices(); ++j) {
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box.update(s->getVertex(j).coords);
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}
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}
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box_valid = geom_changes;
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}
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return box;
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}
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const Box &getCullBox()const {
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return cullBox.empty() ? getBox() : cullBox;
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}
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MeshCollider *getCollider()const {
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if (coll_valid != geom_changes) {
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delete collider;
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vector<MeshCollider::Vertex> verts;
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vector<MeshCollider::Triangle> tris;
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for (int k = 0; k < surfaces.size(); ++k) {
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Surface *s = surfaces[k];
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int j;
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for (j = 0; j < s->numTriangles(); ++j) {
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MeshCollider::Triangle q;
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q.verts[0] = s->getTriangle(j).verts[0] + verts.size();
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q.verts[1] = s->getTriangle(j).verts[1] + verts.size();
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q.verts[2] = s->getTriangle(j).verts[2] + verts.size();
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q.surface = s;
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q.index = j;
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tris.push_back(q);
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}
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for (j = 0; j < s->numVertices(); ++j) {
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MeshCollider::Vertex q;
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q.coords = s->getVertex(j).coords;
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verts.push_back(q);
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}
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}
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collider = new MeshCollider(verts, tris);
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coll_valid = geom_changes;
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}
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return collider;
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}
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};
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MeshModel::MeshModel() :
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rep(new Rep()), brush_changes(0) {}
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MeshModel::MeshModel(const MeshModel &t) : Model(t),
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rep(t.rep), brush_changes(rep->brush_changes - 1) {
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++rep->ref_cnt;
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surf_bones.resize(t.surf_bones.size());
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/*
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if( t.surf_bones.size() ){
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surf_bones.resize( t.surf_bones.size() );
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if( rep->bone_tforms.size() ){
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setRenderSpace( RENDER_SPACE_WORLD );
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}
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}
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*/
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}
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MeshModel::~MeshModel() {
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if (!--rep->ref_cnt) delete rep;
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}
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void MeshModel::updateNormals() {
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rep->updateNormals();
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}
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void MeshModel::setCullBox(const Box &box) {
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rep->setCullBox(box);
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}
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void MeshModel::setRenderBrush(const Brush &b) {
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--brush_changes;
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render_brush = b;
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}
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void MeshModel::createBones() {
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setRenderSpace(RENDER_SPACE_WORLD);
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const vector<Object*> &bones = getAnimator()->getObjects();
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surf_bones.resize(bones.size());
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rep->bone_tforms.resize(bones.size());
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for (int k = 0; k < bones.size(); ++k) {
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rep->bone_tforms[k] = -bones[k]->GetWorldTransform();
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}
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}
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bool MeshModel::render(const RenderContext &rc) {
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const Box &b = rep->getCullBox();
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if (b.empty()) return false;
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static Frustum model_frustum;
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new(&model_frustum) Frustum(rc.getWorldFrustum(), -getRenderTform());
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if (!model_frustum.cull(b)) return false;
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if (brush_changes != rep->brush_changes) {
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brushes.clear();
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for (int k = 0; k < rep->surfaces.size(); ++k) {
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Surface *s = rep->surfaces[k];
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brushes.push_back(Brush(s->getBrush(), render_brush));
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}
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brush_changes = rep->brush_changes;
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}
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if (!surf_bones.size()) {
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for (int k = 0; k < rep->surfaces.size(); ++k) {
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Surface *s = rep->surfaces[k];
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if (gxMesh *mesh = s->getMesh()) {
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enqueue(mesh, 0, s->numVertices(), 0, s->numTriangles(), brushes[k]);
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}
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}
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return false;
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}
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//OK, its boned!
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const vector<Object*> &bones = getAnimator()->getObjects();
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int k;
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for (k = 0; k < bones.size(); ++k) {
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Transform t =
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bones[k]->getRenderTform() * rep->bone_tforms[k];
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surf_bones[k].coord_tform = t;
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surf_bones[k].normal_tform = t.m.cofactor();
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}
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bool trans = false;
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for (k = 0; k < rep->surfaces.size(); ++k) {
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Surface *s = rep->surfaces[k];
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if (brushes[k].getBlend() == gxScene::BLEND_REPLACE) {
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if (gxMesh *mesh = s->getMesh(surf_bones)) {
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enqueue(mesh, 0, s->numVertices(), 0, s->numTriangles(), brushes[k]);
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}
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} else {
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trans = true;
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}
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}
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return trans;
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}
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void MeshModel::renderQueue(int type) {
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if (type == QUEUE_TRANSPARENT && surf_bones.size()) {
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for (int k = 0; k < rep->surfaces.size(); ++k) {
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Surface *s = rep->surfaces[k];
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if (brushes[k].getBlend() != gxScene::BLEND_REPLACE) {
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if (gxMesh *mesh = s->getMesh(surf_bones)) {
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enqueue(mesh, 0, s->numVertices(), 0, s->numTriangles(), brushes[k]);
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}
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}
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}
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}
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Model::renderQueue(type);
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}
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Surface *MeshModel::createSurface(const Brush &b) {
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return rep->createSurface(b);
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--brush_changes;
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}
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void MeshModel::flipTriangles() {
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rep->flip();
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}
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void MeshModel::transform(const Transform &t) {
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rep->transform(t);
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}
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void MeshModel::add(const MeshModel &t) {
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rep->add(t.rep);
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}
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const MeshModel::SurfaceList &MeshModel::getSurfaces()const {
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return rep->surfaces;
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}
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void MeshModel::paint(const Brush &b) {
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rep->paint(b);
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}
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const Box &MeshModel::getBox()const {
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return rep->getBox();
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}
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MeshCollider *MeshModel::getCollider()const {
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return rep->getCollider();
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}
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Surface *MeshModel::findSurface(const Brush &b)const {
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return rep->findSurface(b);
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}
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bool MeshModel::collide(const Line &line, float radius, Collision *curr_coll, const Transform &t) {
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return getCollider()->collide(line, radius, curr_coll, t);
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}
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bool MeshModel::intersects(const MeshModel &m)const {
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return getCollider()->intersects(*m.getCollider(), -m.GetWorldTransform()*GetWorldTransform());
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}
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