Michael Fabian 'Xaymar' Dirks
146 lines
3.1 KiB
C++
146 lines
3.1 KiB
C++
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#include "md2model.hpp"
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#include "md2rep.hpp"
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#include "std.hpp"
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struct MD2Model::Rep : public MD2Rep {
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int ref_cnt;
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Rep(const string& f) : MD2Rep(f), ref_cnt(1) {}
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};
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MD2Model::MD2Model(const string& f)
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: rep(new Rep(f)), anim_mode(0), anim_time(0), render_a(0), render_b(0), render_t(0), trans_verts(0)
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{}
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MD2Model::MD2Model(const MD2Model& t)
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: Model(t), rep(t.rep), anim_mode(0), anim_time(0), render_a(0), render_b(0), render_t(0), trans_verts(0)
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{
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++rep->ref_cnt;
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}
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MD2Model::~MD2Model()
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{
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if (!--rep->ref_cnt)
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delete rep;
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if (trans_verts)
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delete[] trans_verts;
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}
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void MD2Model::startMD2Anim(int first, int last, int mode, float speed, float trans)
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{
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if (last < first)
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std::swap(first, last);
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if (first < 0)
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first = 0;
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else if (first >= rep->numFrames())
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first = rep->numFrames() - 1;
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if (last < 0)
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last = 0;
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else if (last >= rep->numFrames())
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last = rep->numFrames() - 1;
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if (trans > 0) {
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if (!trans_verts)
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trans_verts = new MD2Rep::Vert[rep->numVertices()];
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if (anim_mode & 0x8000)
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rep->render(trans_verts, anim_time, trans_time);
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else
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rep->render(trans_verts, render_a, render_b, render_t);
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trans_speed = 1.0f / trans;
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trans_time = 0;
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mode |= 0x8000;
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}
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anim_first = first;
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anim_last = last;
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anim_len = last - first;
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anim_speed = speed;
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anim_time = ((mode & 0x7fff) == Animator::ANIM_MODE_LOOP || anim_speed >= 0) ? anim_first : anim_last;
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anim_mode = mode;
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if (!anim_speed || !anim_len) {
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render_a = render_b = anim_time;
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render_t = 0;
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anim_mode &= 0x8000;
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}
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}
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void MD2Model::animate(float e)
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{
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Model::animate(e);
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if (!anim_mode)
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return;
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if (anim_mode & 0x8000) {
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trans_time += trans_speed;
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if (trans_time < 1)
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return;
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anim_mode &= ~0x8000;
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if (!anim_mode)
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return;
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}
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anim_time = anim_time + anim_speed * e;
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if (anim_time < anim_first) {
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switch (anim_mode) {
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case Animator::ANIM_MODE_LOOP:
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anim_time += anim_len;
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break;
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case Animator::ANIM_MODE_PINGPONG:
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anim_time = anim_first + (anim_first - anim_time);
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anim_speed = -anim_speed;
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break;
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default:
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anim_time = anim_first;
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anim_mode = 0;
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break;
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}
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} else if (anim_time >= anim_last) {
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switch (anim_mode) {
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case Animator::ANIM_MODE_LOOP:
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anim_time -= anim_len;
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break;
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case Animator::ANIM_MODE_PINGPONG:
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anim_time = anim_last - (anim_time - anim_last);
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anim_speed = -anim_speed;
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break;
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default:
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anim_time = anim_last;
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anim_mode = 0;
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break;
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}
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}
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render_a = floor(anim_time);
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render_b = render_a + 1;
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if (anim_mode == Animator::ANIM_MODE_LOOP && render_b == anim_last)
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render_b = anim_first;
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render_t = anim_time - render_a;
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}
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bool MD2Model::render(const RenderContext& rc)
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{
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static Frustum f;
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new (&f) Frustum(rc.getWorldFrustum(), -getRenderTform());
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if (!f.cull(rep->getBox()))
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return false;
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if (anim_mode & 0x8000) {
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rep->render(this, trans_verts, anim_time, trans_time);
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} else {
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rep->render(this, render_a, render_b, render_t);
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}
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return false;
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}
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int MD2Model::getMD2AnimLength() const
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{
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return rep->numFrames();
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}
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bool MD2Model::getValid() const
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{
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return rep->numFrames() > 0;
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}
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