mirror of
https://github.com/ultimatepp/ultimatepp.git
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234 lines
6.7 KiB
C++
234 lines
6.7 KiB
C++
#include "Model.h"
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bool ModelMesh::Load(String file, VBOLibrary &lib, Point3f scale)
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{
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FileIn fin(file);
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if (!fin.IsOpen())
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return false;
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Vector<Triangle> t;
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Vector<Vertex> v;
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bool smoothnormals;
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s % alphasort % smoothnormals;
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v.Serialize(fin);
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t.Serialize(t);
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Scale(v, t, scale, smoothnormals);
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vbo = lib.GetVertexBuffer(v);
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if (!vbo) return false;
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ibo = lib.GetIndexBuffer(t);
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return ibo > 0;
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}
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void ModelMesh::Draw()
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{
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#error Do model drawing
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}
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void ModelMesh::Scale(Vector<Vertex> &v, Vector<Vertex> &tri, Point3f scale, bool smooth_normals)
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{
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for (int i = 0; i < v.GetCount(); i++) {
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v[i].pos.x *= scale.x;
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v[i].pos.y *= scale.y;
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v[i].pos.z *= scale.z;
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v[i].normal = Point3f(0.0f, 0.0f, 0.0f);
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}
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if (smooth_normals) {
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for (int i = 0; i < tri.GetCount(); i++) {
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Triangle &t = tri[i];
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Point3f n = t.GetNormal(v[t.a].pos, v[t.b].pos, v[t.v].pos);
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v[t.a].normal += n;
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v[t.b].normal += n;
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v[t.c].normal += n;
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}
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for (int i = 0; i < v.GetCount(); i++)
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v[i].normal.Unit();
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}
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else
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for (int i = 0; i < tri.GetCount(); i++) {
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Triangle &t = tri[i];
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Point3f n = t.GetNormal(v[t.a].pos, v[t.b].pos, v[t.v].pos);
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v[t.a].normal = n;
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v[t.b].normal = n;
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v[t.c].normal = n;
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}
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}
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void CreateUpStair(Vector<Vertex> &v, Vector<Quad> &t, float floorcy)
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{
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float landingcx = 0.2;
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float stairstart = 1.0f - landingcx;
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// 0 - 3 Landing upper face
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v.Add(Vertex(0.0f, 0.0f, 0.5f));
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v.Add(Vertex(landingcx, 0.0f, 0.5f));
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v.Add(Vertex(landingcx, 1.0f, 0.5f));
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v.Add(Vertex(0.0f, 1.0f, 0.5f));
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// 4 - 7 Landing lower face
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v.Add(Vertex(0.0f, 0.0f, 0.5f - floorcy));
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v.Add(Vertex(landingcx, 0.0f, 0.5f - floorcy));
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v.Add(Vertex(landingcx, 1.0f, 0.5f - floorcy));
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v.Add(Vertex(0.0f, 1.0f, 0.5f - floorcy));
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// 8 - 10 Ramp upper face
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v.Add(Vertex(stairstart, stairstart, 0.0f));
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v.Add(Vertex(stairstart, 1.0f, 0.0f));
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v.Add(Vertex(landingcx, 1.0f, 0.5f));
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v.Add(Vertex(landingcx, stairstart, 0.5f));
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// 11 - 13 Ramp lower face
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v.Add(Vertex(stairstart, stairstart, 0.5f - floorcy));
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v.Add(Vertex(stairstart, 1.0f, -floorcy));
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v.Add(Vertex(landingcx, 1.0f, 0.5f - floorcy));
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v.Add(Vertex(landingcx, stairstart, 0.5f - floorcy));
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float a = floorcy
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float c = 1.0f - landingcx*2;
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float d = 0.5f - floorcy;
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AddCube(t, 0, true, true, true);
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AddCube(t, 8, true, false, true);
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}
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void CreateDownStair(Vector<Vertex> &v, Vector<Quad> &t, float floorcy)
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{
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float landingcx = 0.2;
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float stairend = 1.0f - landingcx;
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floorcy = -floorcy;
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// 0 - 3 Floor pt1 upper face
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v.Add(Vertex(0.0f, landingcx, 0.0));
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v.Add(Vertex(1.0f, landingcx, 0.0));
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v.Add(Vertex(1.0f, 1.0f, 0.0));
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v.Add(Vertex(0.0f, 1.0f, 0.0));
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// 4 - 7 Floor pt1 lower face
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v.Add(Vertex(0.0f, landingcx, floorcy));
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v.Add(Vertex(1.0f, landingcx, floorcy));
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v.Add(Vertex(1.0f, 1.0f, floorcy));
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v.Add(Vertex(0.0f, 1.0f, floorcy));
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// 8 - 11 Floor pt2 upper face
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v.Add(Vertex(stairend, 0.0f, 0.0f));
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v.Add(Vertex(1.0f, 0.0f, 0.0f));
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v.Add(Vertex(1.0f, landingcx, 0.0f));
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v.Add(Vertex(stairend, landingcx, 0.0f));
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// 12 - 15 Floor pt2 lower face
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v.Add(Vertex(stairend, 0.0f, floorcy));
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v.Add(Vertex(1.0f, 0.0f, floorcy));
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v.Add(Vertex(1.0f, landingcx, floorcy));
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v.Add(Vertex(stairend, landingcx, floorcy));
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// 16 - 19 Ramp upper face
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v.Add(Vertex(landingcx, 0.0f, 0.5f));
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v.Add(Vertex(stairend, 0.0f, 0.5f));
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v.Add(Vertex(stairend, landingcx, 0.0f));
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v.Add(Vertex(landingcx, landingcx, 0.0f));
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// 20 - 23 Ramp lower face
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v.Add(Vertex(landingcx, 0.0f, 0.5f+floorcy));
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v.Add(Vertex(stairend, 0.0f, 0.5f+floorcy));
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v.Add(Vertex(stairend, landingcx, floorcy));
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v.Add(Vertex(landingcx, landingcx, floorcy));
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// Upper/lower faces
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AddCube(t, 0, true, true, true);
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AddCube(t, 8, true, true, true);
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t.Remove(t.GetCount()-2); // Remove top face
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AddCube(t, 16, true, true, true);
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t.Remove(t.GetCount()-3); // Remove right face
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}
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void CreateTrunk(Vector<Vertex> &v, Vector<Quad> &t)
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{
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float thick = 0.1;
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float height = 0.3;
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Point3f c(0.5, 0.5, 0.0f)
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v.Add(Vertex(c.x - thick, c.y - thick, c.z));
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v.Add(Vertex(c.x + thick, c.y - thick, c.z));
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v.Add(Vertex(c.x + thick, c.y + thick, c.z));
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v.Add(Vertex(c.x - thick, c.y + thick, c.z));
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c.z += height;
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v.Add(Vertex(c.x - thick, c.y - thick, c.z));
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v.Add(Vertex(c.x + thick, c.y - thick, c.z));
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v.Add(Vertex(c.x + thick, c.y + thick, c.z));
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v.Add(Vertex(c.x - thick, c.y + thick, c.z));
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AddCube(t, 0, false, true, true);
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}
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void CreateDownStair(Vector<Vertex> &v, Vector<Quad> &t, float floorcy)
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{
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float landingcx = 0.2;
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float stairend = 1.0f - landingcx;
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CreateDownStair(v, t, floorcy);
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v[2].y = stairend;
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v[3].y = stairend;
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v[6].y = stairend;
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v[7].y = stairend;
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CreateUpStair(v, t, floorcy);
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int pt3ix = v.GetCount();
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// Floor pt3 upper face
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v.Add(Vertex(stairend, 0.0f, 0.0f));
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v.Add(Vertex(1.0f, 0.0f, 0.0f));
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v.Add(Vertex(1.0f, 1.0f, 0.0f));
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v.Add(Vertex(stairend, 1.0f, 0.0f));
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// Floor pt3 lower face
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v.Add(Vertex(stairend, 0.0f, floorcy));
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v.Add(Vertex(1.0f, 0.0f, floorcy));
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v.Add(Vertex(1.0f, 1.0f, floorcy));
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v.Add(Vertex(stairend, 1.0f, floorcy));
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// Upper/lower faces
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AddCube(t, pt3ix, true, true, true);
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t.Remove(t.GetCount() - 4); // Remove left face
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t.Remove(t.GetCount() - 2); // Remove bottom face
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}
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void AddCube(Vector<Quad> &t, int ix, bool vertical, bool sides, bool ends)
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{
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// Up/Down
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if (vertical) {
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AddQuad(t, ix+0, ix+1, ix+2, ix+3); // Up
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AddQuad(t, ix+7, ix+6, ix+5, ix+4); // Down
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}
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if (sides) {
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// Sides
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AddQuad(t, ix+4, ix+5, ix+1, ix+0); // Left - 4
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AddQuad(t, ix+3, ix+2, ix+6, ix+7); // Right - 3
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}
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if (ends) {
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// Ends
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AddQuad(t, ix+0, ix+3, ix+7, ix+4); // Bottom - 2
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AddQuad(t, ix+1, ix+2, ix+6, ix+5); // Top - 1
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}
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}
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void AddQuad(Vector<Quad> &t, int a, int b, int c, int d)
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{
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t.Add(Triangle(a, b, c, d));
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}
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void SplitTriVertex(Vector<Vertex> &v, Vector<Quad> &t, Vector<Vertex> &vout, Vector<Triangle> &tout)
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{
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out.Reserve(t.GetCount()*4);
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for (int i = 0; i < t.GetCount(); i++) {
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Quad &q = t[i];
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int ix = vout.GetCount()
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Triangle t1(ix, ix+1, ix+2);
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Triangle t2(ix+2, ix+3, ix);
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SetTextureCoords(v[t.a], v[t.b], v[t.c], v[t.d]);
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vout.Add(v[t.a]);
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vout.Add(v[t.b]);
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vout.Add(v[t.c]);
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vout.Add(v[t.d]);
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tout.Add(t1);
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tout.Add(t2);
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}
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}
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void SetTextureCoords(Vertex &a, Vertex &b, Vertex &c, Vertex &d)
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{
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Point2f t;
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t.x = (a.pos - b.pos).Length();
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t.y = (d.pos - a.pos).Length();
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a.tex.x = 0.0f;
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a.tex.y = 0.0f;
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b.tex.x = t.x;
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b.tex.y = 0.0f;
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c.tex.x = t.xf;
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c.tex.y = t.yf;
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d.tex.x = 0.0;
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d.tex.y = t.yf;
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}
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