Convert to ObjC++
FossilOrigin-Name: 7c2704b3d77d6e63d960e315bfb601fddbf6fce538b7c5db6da664e04fbce4c2
This commit is contained in:
parent
04fa50a332
commit
133382170f
34 changed files with 87 additions and 79 deletions
303
src/rendermd2.mm
Normal file
303
src/rendermd2.mm
Normal file
|
|
@ -0,0 +1,303 @@
|
|||
// rendermd2.cpp: loader code adapted from a nehe tutorial
|
||||
|
||||
#include "cube.h"
|
||||
|
||||
struct md2_header {
|
||||
int magic;
|
||||
int version;
|
||||
int skinWidth, skinHeight;
|
||||
int frameSize;
|
||||
int numSkins, numVertices, numTexcoords;
|
||||
int numTriangles, numGlCommands, numFrames;
|
||||
int offsetSkins, offsetTexcoords, offsetTriangles;
|
||||
int offsetFrames, offsetGlCommands, offsetEnd;
|
||||
};
|
||||
|
||||
struct md2_vertex {
|
||||
uchar vertex[3], lightNormalIndex;
|
||||
};
|
||||
|
||||
struct md2_frame {
|
||||
float scale[3];
|
||||
float translate[3];
|
||||
char name[16];
|
||||
md2_vertex vertices[1];
|
||||
};
|
||||
|
||||
struct md2 {
|
||||
int numGlCommands;
|
||||
int *glCommands;
|
||||
int numTriangles;
|
||||
int frameSize;
|
||||
int numFrames;
|
||||
int numVerts;
|
||||
char *frames;
|
||||
vec **mverts;
|
||||
int displaylist;
|
||||
int displaylistverts;
|
||||
|
||||
mapmodelinfo mmi;
|
||||
char *loadname;
|
||||
int mdlnum;
|
||||
bool loaded;
|
||||
|
||||
bool load(char *filename);
|
||||
void render(vec &light, int numFrame, int range, float x, float y,
|
||||
float z, float yaw, float pitch, float scale, float speed, int snap,
|
||||
int basetime);
|
||||
void scale(int frame, float scale, int sn);
|
||||
|
||||
md2()
|
||||
: numGlCommands(0), frameSize(0), numFrames(0), displaylist(0),
|
||||
loaded(false) {};
|
||||
|
||||
~md2()
|
||||
{
|
||||
if (glCommands)
|
||||
delete[] glCommands;
|
||||
if (frames)
|
||||
delete[] frames;
|
||||
}
|
||||
};
|
||||
|
||||
bool
|
||||
md2::load(char *filename)
|
||||
{
|
||||
FILE *file;
|
||||
md2_header header;
|
||||
|
||||
if ((file = fopen(filename, "rb")) == NULL)
|
||||
return false;
|
||||
|
||||
fread(&header, sizeof(md2_header), 1, file);
|
||||
endianswap(&header, sizeof(int), sizeof(md2_header) / sizeof(int));
|
||||
|
||||
if (header.magic != 844121161 || header.version != 8)
|
||||
return false;
|
||||
|
||||
frames = new char[header.frameSize * header.numFrames];
|
||||
if (frames == NULL)
|
||||
return false;
|
||||
|
||||
fseek(file, header.offsetFrames, SEEK_SET);
|
||||
fread(frames, header.frameSize * header.numFrames, 1, file);
|
||||
|
||||
for (int i = 0; i < header.numFrames; ++i) {
|
||||
endianswap(frames + i * header.frameSize, sizeof(float), 6);
|
||||
}
|
||||
|
||||
glCommands = new int[header.numGlCommands];
|
||||
if (glCommands == NULL)
|
||||
return false;
|
||||
|
||||
fseek(file, header.offsetGlCommands, SEEK_SET);
|
||||
fread(glCommands, header.numGlCommands * sizeof(int), 1, file);
|
||||
|
||||
endianswap(glCommands, sizeof(int), header.numGlCommands);
|
||||
|
||||
numFrames = header.numFrames;
|
||||
numGlCommands = header.numGlCommands;
|
||||
frameSize = header.frameSize;
|
||||
numTriangles = header.numTriangles;
|
||||
numVerts = header.numVertices;
|
||||
|
||||
fclose(file);
|
||||
|
||||
mverts = new vec *[numFrames];
|
||||
loopj(numFrames) mverts[j] = NULL;
|
||||
|
||||
return true;
|
||||
};
|
||||
|
||||
float
|
||||
snap(int sn, float f)
|
||||
{
|
||||
return sn ? (float)(((int)(f + sn * 0.5f)) & (~(sn - 1))) : f;
|
||||
};
|
||||
|
||||
void
|
||||
md2::scale(int frame, float scale, int sn)
|
||||
{
|
||||
mverts[frame] = new vec[numVerts];
|
||||
md2_frame *cf = (md2_frame *)((char *)frames + frameSize * frame);
|
||||
float sc = 16.0f / scale;
|
||||
loop(vi, numVerts)
|
||||
{
|
||||
uchar *cv = (uchar *)&cf->vertices[vi].vertex;
|
||||
vec *v = &(mverts[frame])[vi];
|
||||
v->x = (snap(sn, cv[0] * cf->scale[0]) + cf->translate[0]) / sc;
|
||||
v->y =
|
||||
-(snap(sn, cv[1] * cf->scale[1]) + cf->translate[1]) / sc;
|
||||
v->z = (snap(sn, cv[2] * cf->scale[2]) + cf->translate[2]) / sc;
|
||||
};
|
||||
};
|
||||
|
||||
void
|
||||
md2::render(vec &light, int frame, int range, float x, float y, float z,
|
||||
float yaw, float pitch, float sc, float speed, int snap, int basetime)
|
||||
{
|
||||
loopi(range) if (!mverts[frame + i]) scale(frame + i, sc, snap);
|
||||
|
||||
glPushMatrix();
|
||||
glTranslatef(x, y, z);
|
||||
glRotatef(yaw + 180, 0, -1, 0);
|
||||
glRotatef(pitch, 0, 0, 1);
|
||||
|
||||
glColor3fv((float *)&light);
|
||||
|
||||
if (displaylist && frame == 0 && range == 1) {
|
||||
glCallList(displaylist);
|
||||
xtraverts += displaylistverts;
|
||||
} else {
|
||||
if (frame == 0 && range == 1) {
|
||||
static int displaylistn = 10;
|
||||
glNewList(displaylist = displaylistn++, GL_COMPILE);
|
||||
displaylistverts = xtraverts;
|
||||
};
|
||||
|
||||
int time = lastmillis - basetime;
|
||||
int fr1 = (int)(time / speed);
|
||||
float frac1 = (time - fr1 * speed) / speed;
|
||||
float frac2 = 1 - frac1;
|
||||
fr1 = fr1 % range + frame;
|
||||
int fr2 = fr1 + 1;
|
||||
if (fr2 >= frame + range)
|
||||
fr2 = frame;
|
||||
vec *verts1 = mverts[fr1];
|
||||
vec *verts2 = mverts[fr2];
|
||||
|
||||
for (int *command = glCommands; (*command) != 0;) {
|
||||
int numVertex = *command++;
|
||||
if (numVertex > 0) {
|
||||
glBegin(GL_TRIANGLE_STRIP);
|
||||
} else {
|
||||
glBegin(GL_TRIANGLE_FAN);
|
||||
numVertex = -numVertex;
|
||||
};
|
||||
|
||||
loopi(numVertex)
|
||||
{
|
||||
float tu = *((float *)command++);
|
||||
float tv = *((float *)command++);
|
||||
glTexCoord2f(tu, tv);
|
||||
int vn = *command++;
|
||||
vec &v1 = verts1[vn];
|
||||
vec &v2 = verts2[vn];
|
||||
#define ip(c) v1.c *frac2 + v2.c *frac1
|
||||
glVertex3f(ip(x), ip(z), ip(y));
|
||||
};
|
||||
|
||||
xtraverts += numVertex;
|
||||
|
||||
glEnd();
|
||||
};
|
||||
|
||||
if (displaylist) {
|
||||
glEndList();
|
||||
displaylistverts = xtraverts - displaylistverts;
|
||||
};
|
||||
};
|
||||
|
||||
glPopMatrix();
|
||||
}
|
||||
|
||||
hashtable<md2 *> *mdllookup = NULL;
|
||||
vector<md2 *> mapmodels;
|
||||
const int FIRSTMDL = 20;
|
||||
|
||||
void
|
||||
delayedload(md2 *m)
|
||||
{
|
||||
if (!m->loaded) {
|
||||
sprintf_sd(name1)("packages/models/%s/tris.md2", m->loadname);
|
||||
if (!m->load(path(name1)))
|
||||
fatal("loadmodel: ", name1);
|
||||
sprintf_sd(name2)("packages/models/%s/skin.jpg", m->loadname);
|
||||
int xs, ys;
|
||||
installtex(FIRSTMDL + m->mdlnum, path(name2), xs, ys);
|
||||
m->loaded = true;
|
||||
};
|
||||
};
|
||||
|
||||
int modelnum = 0;
|
||||
|
||||
md2 *
|
||||
loadmodel(char *name)
|
||||
{
|
||||
if (!mdllookup)
|
||||
mdllookup = new hashtable<md2 *>;
|
||||
md2 **mm = mdllookup->access(name);
|
||||
if (mm)
|
||||
return *mm;
|
||||
md2 *m = new md2();
|
||||
m->mdlnum = modelnum++;
|
||||
mapmodelinfo mmi = {2, 2, 0, 0, ""};
|
||||
m->mmi = mmi;
|
||||
m->loadname = newstring(name);
|
||||
mdllookup->access(m->loadname, &m);
|
||||
return m;
|
||||
};
|
||||
|
||||
void
|
||||
mapmodel(char *rad, char *h, char *zoff, char *snap, char *name)
|
||||
{
|
||||
md2 *m = loadmodel(name);
|
||||
mapmodelinfo mmi = {
|
||||
atoi(rad), atoi(h), atoi(zoff), atoi(snap), m->loadname};
|
||||
m->mmi = mmi;
|
||||
mapmodels.add(m);
|
||||
};
|
||||
|
||||
void
|
||||
mapmodelreset()
|
||||
{
|
||||
mapmodels.setsize(0);
|
||||
};
|
||||
|
||||
mapmodelinfo &
|
||||
getmminfo(int i)
|
||||
{
|
||||
return i < mapmodels.length() ? mapmodels[i]->mmi : *(mapmodelinfo *)0;
|
||||
};
|
||||
|
||||
COMMAND(mapmodel, ARG_5STR);
|
||||
COMMAND(mapmodelreset, ARG_NONE);
|
||||
|
||||
void
|
||||
rendermodel(char *mdl, int frame, int range, int tex, float rad, float x,
|
||||
float y, float z, float yaw, float pitch, bool teammate, float scale,
|
||||
float speed, int snap, int basetime)
|
||||
{
|
||||
md2 *m = loadmodel(mdl);
|
||||
|
||||
if (isoccluded(player1->o.x, player1->o.y, x - rad, z - rad, rad * 2))
|
||||
return;
|
||||
|
||||
delayedload(m);
|
||||
|
||||
int xs, ys;
|
||||
glBindTexture(GL_TEXTURE_2D,
|
||||
tex ? lookuptexture(tex, xs, ys) : FIRSTMDL + m->mdlnum);
|
||||
|
||||
int ix = (int)x;
|
||||
int iy = (int)z;
|
||||
vec light = {1.0f, 1.0f, 1.0f};
|
||||
|
||||
if (!OUTBORD(ix, iy)) {
|
||||
sqr *s = S(ix, iy);
|
||||
float ll = 256.0f; // 0.96f;
|
||||
float of = 0.0f; // 0.1f;
|
||||
light.x = s->r / ll + of;
|
||||
light.y = s->g / ll + of;
|
||||
light.z = s->b / ll + of;
|
||||
};
|
||||
|
||||
if (teammate) {
|
||||
light.x *= 0.6f;
|
||||
light.y *= 0.7f;
|
||||
light.z *= 1.2f;
|
||||
};
|
||||
|
||||
m->render(light, frame, range, x, y, z, yaw, pitch, scale, speed, snap,
|
||||
basetime);
|
||||
};
|
||||
Loading…
Add table
Add a link
Reference in a new issue