]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - pr_cmds.c
merged q1bsp and q3bsp surface rendering
[xonotic/darkplaces.git] / pr_cmds.c
index 6de3550b3db8e95d3f9ba68a74abb5e54a024ce7..e57ebe3927067778d57f07e4dba5f90d4947e054 100644 (file)
--- a/pr_cmds.c
+++ b/pr_cmds.c
@@ -75,6 +75,7 @@ char *ENGINE_EXTENSIONS =
 "DP_CL_LOADSKY "
 "DP_CON_SET "
 "DP_CON_SETA "
+"DP_CON_STARTMAP "
 "DP_EF_ADDITIVE "
 "DP_EF_BLUE "
 "DP_EF_FLAME "
@@ -1400,7 +1401,7 @@ void PF_walkmove (void)
 
        // assume failure if it returns early
        G_FLOAT(OFS_RETURN) = 0;
-       
+
        ent = PROG_TO_EDICT(pr_global_struct->self);
        if (ent == sv.edicts)
                PF_WARNING("walkmove: can not modify world entity\n");
@@ -2599,32 +2600,42 @@ void PF_te_plasmaburn (void)
        MSG_WriteCoord(&sv.datagram, G_VECTOR(OFS_PARM0)[2], sv.protocol);
 }
 
-static void clippointtosurface(msurface_t *surf, vec3_t p, vec3_t out)
+static void clippointtosurface(msurface_t *surface, vec3_t p, vec3_t out)
 {
-       int i, j;
-       vec3_t v1, clipplanenormal, normal;
-       vec_t clipplanedist, clipdist;
+       int i, j, k;
+       float *v[3], facenormal[3], edgenormal[3], sidenormal[3], temp[3], offsetdist, dist, bestdist;
+       bestdist = 1000000000;
        VectorCopy(p, out);
-       if (surf->flags & SURF_PLANEBACK)
-               VectorNegate(surf->plane->normal, normal);
-       else
-               VectorCopy(surf->plane->normal, normal);
-       for (i = 0, j = surf->poly_numverts - 1;i < surf->poly_numverts;j = i, i++)
-       {
-               VectorSubtract(&surf->poly_verts[j * 3], &surf->poly_verts[i * 3], v1);
-               VectorNormalizeFast(v1);
-               CrossProduct(v1, normal, clipplanenormal);
-               clipplanedist = DotProduct(&surf->poly_verts[i * 3], clipplanenormal);
-               clipdist = DotProduct(out, clipplanenormal) - clipplanedist;
-               if (clipdist > 0)
+       for (i = 0;i < surface->mesh.num_triangles;i++)
+       {
+               // clip original point to each triangle of the surface and find the
+               // triangle that is closest
+               v[0] = surface->mesh.data_vertex3f + surface->mesh.data_element3i[i * 3 + 0] * 3;
+               v[1] = surface->mesh.data_vertex3f + surface->mesh.data_element3i[i * 3 + 1] * 3;
+               v[2] = surface->mesh.data_vertex3f + surface->mesh.data_element3i[i * 3 + 2] * 3;
+               TriangleNormal(v[0], v[1], v[2], facenormal);
+               VectorNormalize(facenormal);
+               offsetdist = DotProduct(v[0], facenormal) - DotProduct(p, facenormal);
+               VectorMA(p, offsetdist, facenormal, temp);
+               for (j = 0, k = 2;j < 3;k = j, j++)
                {
-                       clipdist = -clipdist;
-                       VectorMA(out, clipdist, clipplanenormal, out);
+                       VectorSubtract(v[k], v[j], edgenormal);
+                       CrossProduct(edgenormal, facenormal, sidenormal);
+                       VectorNormalize(sidenormal);
+                       offsetdist = DotProduct(v[k], sidenormal) - DotProduct(temp, sidenormal);
+                       if (offsetdist < 0)
+                               VectorMA(temp, offsetdist, sidenormal, temp);
+               }
+               dist = VectorDistance2(temp, p);
+               if (bestdist > dist)
+               {
+                       bestdist = dist;
+                       VectorCopy(temp, out);
                }
        }
 }
 
-static msurface_t *getsurface(edict_t *ed, int surfnum)
+static msurface_t *getsurface(edict_t *ed, int surfacenum)
 {
        int modelindex;
        model_t *model;
@@ -2634,74 +2645,79 @@ static msurface_t *getsurface(edict_t *ed, int surfnum)
        if (modelindex < 1 || modelindex >= MAX_MODELS)
                return NULL;
        model = sv.models[modelindex];
-       if (surfnum < 0 || surfnum >= model->nummodelsurfaces)
+       if (surfacenum < 0 || surfacenum >= model->nummodelsurfaces)
                return NULL;
-       return model->brushq1.surfaces + surfnum + model->firstmodelsurface;
+       return model->brush.data_surfaces + surfacenum + model->firstmodelsurface;
 }
 
 
 //PF_getsurfacenumpoints, // #434 float(entity e, float s) getsurfacenumpoints = #434;
 void PF_getsurfacenumpoints(void)
 {
-       msurface_t *surf;
+       msurface_t *surface;
        // return 0 if no such surface
-       if (!(surf = getsurface(G_EDICT(OFS_PARM0), G_FLOAT(OFS_PARM1))))
+       if (!(surface = getsurface(G_EDICT(OFS_PARM0), G_FLOAT(OFS_PARM1))))
        {
                G_FLOAT(OFS_RETURN) = 0;
                return;
        }
 
-       G_FLOAT(OFS_RETURN) = surf->poly_numverts;
+       // note: this (incorrectly) assumes it is a simple polygon
+       G_FLOAT(OFS_RETURN) = surface->mesh.num_vertices;
 }
 //PF_getsurfacepoint,     // #435 vector(entity e, float s, float n) getsurfacepoint = #435;
 void PF_getsurfacepoint(void)
 {
        edict_t *ed;
-       msurface_t *surf;
+       msurface_t *surface;
        int pointnum;
        VectorClear(G_VECTOR(OFS_RETURN));
        ed = G_EDICT(OFS_PARM0);
        if (!ed || ed->e->free)
                return;
-       if (!(surf = getsurface(ed, G_FLOAT(OFS_PARM1))))
+       if (!(surface = getsurface(ed, G_FLOAT(OFS_PARM1))))
                return;
+       // note: this (incorrectly) assumes it is a simple polygon
        pointnum = G_FLOAT(OFS_PARM2);
-       if (pointnum < 0 || pointnum >= surf->poly_numverts)
+       if (pointnum < 0 || pointnum >= surface->mesh.num_vertices)
                return;
        // FIXME: implement rotation/scaling
-       VectorAdd(&surf->poly_verts[pointnum * 3], ed->v->origin, G_VECTOR(OFS_RETURN));
+       VectorAdd(&surface->mesh.data_vertex3f[pointnum * 3], ed->v->origin, G_VECTOR(OFS_RETURN));
 }
 //PF_getsurfacenormal,    // #436 vector(entity e, float s) getsurfacenormal = #436;
 void PF_getsurfacenormal(void)
 {
-       msurface_t *surf;
+       msurface_t *surface;
+       vec3_t normal;
        VectorClear(G_VECTOR(OFS_RETURN));
-       if (!(surf = getsurface(G_EDICT(OFS_PARM0), G_FLOAT(OFS_PARM1))))
+       if (!(surface = getsurface(G_EDICT(OFS_PARM0), G_FLOAT(OFS_PARM1))))
                return;
        // FIXME: implement rotation/scaling
-       if (surf->flags & SURF_PLANEBACK)
-               VectorNegate(surf->plane->normal, G_VECTOR(OFS_RETURN));
-       else
-               VectorCopy(surf->plane->normal, G_VECTOR(OFS_RETURN));
+       // note: this (incorrectly) assumes it is a simple polygon
+       // note: this only returns the first triangle, so it doesn't work very
+       // well for curved surfaces or arbitrary meshes
+       TriangleNormal(surface->mesh.data_vertex3f, surface->mesh.data_vertex3f + 3, surface->mesh.data_vertex3f + 6, normal);
+       VectorNormalize(normal);
+       VectorCopy(normal, G_VECTOR(OFS_RETURN));
 }
 //PF_getsurfacetexture,   // #437 string(entity e, float s) getsurfacetexture = #437;
 void PF_getsurfacetexture(void)
 {
-       msurface_t *surf;
+       msurface_t *surface;
        G_INT(OFS_RETURN) = 0;
-       if (!(surf = getsurface(G_EDICT(OFS_PARM0), G_FLOAT(OFS_PARM1))))
+       if (!(surface = getsurface(G_EDICT(OFS_PARM0), G_FLOAT(OFS_PARM1))))
                return;
-       G_INT(OFS_RETURN) = PR_SetString(surf->texinfo->texture->name);
+       G_INT(OFS_RETURN) = PR_SetString(surface->texture->name);
 }
 //PF_getsurfacenearpoint, // #438 float(entity e, vector p) getsurfacenearpoint = #438;
 void PF_getsurfacenearpoint(void)
 {
-       int surfnum, best, modelindex;
+       int surfacenum, best, modelindex;
        vec3_t clipped, p;
        vec_t dist, bestdist;
        edict_t *ed;
        model_t *model;
-       msurface_t *surf;
+       msurface_t *surface;
        vec_t *point;
        G_FLOAT(OFS_RETURN) = -1;
        ed = G_EDICT(OFS_PARM0);
@@ -2713,26 +2729,31 @@ void PF_getsurfacenearpoint(void)
        if (modelindex < 1 || modelindex >= MAX_MODELS)
                return;
        model = sv.models[modelindex];
-       if (!model->brushq1.numsurfaces)
+       if (!model->brush.num_surfaces)
                return;
 
        // FIXME: implement rotation/scaling
        VectorSubtract(point, ed->v->origin, p);
        best = -1;
        bestdist = 1000000000;
-       for (surfnum = 0;surfnum < model->nummodelsurfaces;surfnum++)
-       {
-               surf = model->brushq1.surfaces + surfnum + model->firstmodelsurface;
-               dist = PlaneDiff(p, surf->plane);
-               dist = dist * dist;
+       for (surfacenum = 0;surfacenum < model->nummodelsurfaces;surfacenum++)
+       {
+               surface = model->brush.data_surfaces + surfacenum + model->firstmodelsurface;
+               // first see if the nearest point on the surface's box is closer than the previous match
+               clipped[0] = bound(surface->mins[0], p[0], surface->maxs[0]) - p[0];
+               clipped[1] = bound(surface->mins[1], p[1], surface->maxs[1]) - p[1];
+               clipped[2] = bound(surface->mins[2], p[2], surface->maxs[2]) - p[2];
+               dist = VectorLength2(clipped);
                if (dist < bestdist)
                {
-                       clippointtosurface(surf, p, clipped);
+                       // it is, check the nearest point on the actual geometry
+                       clippointtosurface(surface, p, clipped);
                        VectorSubtract(clipped, p, clipped);
-                       dist += DotProduct(clipped, clipped);
+                       dist += VectorLength2(clipped);
                        if (dist < bestdist)
                        {
-                               best = surfnum;
+                               // that's closer too, store it as the best match
+                               best = surfacenum;
                                bestdist = dist;
                        }
                }
@@ -2743,17 +2764,17 @@ void PF_getsurfacenearpoint(void)
 void PF_getsurfaceclippedpoint(void)
 {
        edict_t *ed;
-       msurface_t *surf;
+       msurface_t *surface;
        vec3_t p, out;
        VectorClear(G_VECTOR(OFS_RETURN));
        ed = G_EDICT(OFS_PARM0);
        if (!ed || ed->e->free)
                return;
-       if (!(surf = getsurface(ed, G_FLOAT(OFS_PARM1))))
+       if (!(surface = getsurface(ed, G_FLOAT(OFS_PARM1))))
                return;
        // FIXME: implement rotation/scaling
        VectorSubtract(G_VECTOR(OFS_PARM2), ed->v->origin, p);
-       clippointtosurface(surf, p, out);
+       clippointtosurface(surface, p, out);
        // FIXME: implement rotation/scaling
        VectorAdd(out, ed->v->origin, G_VECTOR(OFS_RETURN));
 }
@@ -2789,7 +2810,7 @@ void PF_stof(void)
 //float(string filename, float mode) fopen = #110; // opens a file inside quake/gamedir/data/ (mode is FILE_READ, FILE_APPEND, or FILE_WRITE), returns fhandle >= 0 if successful, or fhandle < 0 if unable to open file for any reason
 void PF_fopen(void)
 {
-       int filenum, mode, i;
+       int filenum, mode;
        char *modestring, *filename;
        for (filenum = 0;filenum < MAX_PRFILES;filenum++)
                if (pr_files[filenum] == NULL)
@@ -2818,25 +2839,11 @@ void PF_fopen(void)
                return;
        }
        filename = G_STRING(OFS_PARM0);
-       // control characters do not cause issues with any platforms I know of, but they are usually annoying to deal with
-       // ../ is parent directory on many platforms
-       // // is parent directory on Amiga
-       // / at the beginning of a path is root on unix, and parent directory on Amiga
-       // : is root of drive on Amiga (also used as a directory separator on Mac, but / works there too, so that's a bad idea)
-       // \ is a windows-ism (so it's naughty to use it, / works on all platforms)
-       for (i = 0;filename[i];i++)
-       {
-               if (filename[i] < ' ' || (filename[i] == '/' && filename[i+1] == '/') || (filename[i] == '.' && filename[i+1] == '.') || filename[i] == ':' || filename[i] == '\\' || filename[0] == '/')
-               {
-                       Con_Printf("PF_fopen: dangerous/confusing/annoying/non-portable filename \"%s\" not allowed. (contains control characters or // or .. or : or \\ or begins with /)\n", filename);
-                       G_FLOAT(OFS_RETURN) = -4;
-                       return;
-               }
-       }
-       pr_files[filenum] = FS_Open(va("data/%s", filename), modestring, false);
+       // -4 failure (dangerous/non-portable filename) removed, FS_Open checks
+       pr_files[filenum] = FS_Open(va("data/%s", filename), modestring, false, false);
 
        if (pr_files[filenum] == NULL && modestring == "rb")
-               pr_files[filenum] = FS_Open(filename, modestring, false);
+               pr_files[filenum] = FS_Open(filename, modestring, false, false);
 
        if (pr_files[filenum] == NULL)
                G_FLOAT(OFS_RETURN) = -1;
@@ -2890,7 +2897,11 @@ void PF_fgets(void)
        string[end] = 0;
        // remove \n following \r
        if (c == '\r')
+       {
                c = FS_Getc(pr_files[filenum]);
+               if (c != '\n')
+                       FS_UnGetc(pr_files[filenum], (unsigned char)c);
+       }
        if (developer.integer)
                Con_Printf("fgets: %s\n", string);
        if (c >= 0 || end)
@@ -3180,7 +3191,7 @@ int SV_GetTagMatrix (matrix4x4_t *out, edict_t *ent, int tagindex)
        else
                Matrix4x4_CreateIdentity(&tagmatrix);
 
-       if ((val = GETEDICTFIELDVALUE(ent, eval_tag_entity)) && val->edict) 
+       if ((val = GETEDICTFIELDVALUE(ent, eval_tag_entity)) && val->edict)
        { // DP_GFX_QUAKE3MODELTAGS, scan all chain and stop on unattached entity
                attachloop = 0;
                do
@@ -3208,14 +3219,14 @@ int SV_GetTagMatrix (matrix4x4_t *out, edict_t *ent, int tagindex)
                        Matrix4x4_Concat(out, &entitymatrix, &tagmatrix);
                        out->m[0][3] = entitymatrix.m[0][3] + val->_float*(entitymatrix.m[0][0]*tagmatrix.m[0][3] + entitymatrix.m[0][1]*tagmatrix.m[1][3] + entitymatrix.m[0][2]*tagmatrix.m[2][3]);
                        out->m[1][3] = entitymatrix.m[1][3] + val->_float*(entitymatrix.m[1][0]*tagmatrix.m[0][3] + entitymatrix.m[1][1]*tagmatrix.m[1][3] + entitymatrix.m[1][2]*tagmatrix.m[2][3]);
-                       out->m[2][3] = entitymatrix.m[2][3] + val->_float*(entitymatrix.m[2][0]*tagmatrix.m[0][3] + entitymatrix.m[2][1]*tagmatrix.m[1][3] + entitymatrix.m[2][2]*tagmatrix.m[2][3]);           
+                       out->m[2][3] = entitymatrix.m[2][3] + val->_float*(entitymatrix.m[2][0]*tagmatrix.m[0][3] + entitymatrix.m[2][1]*tagmatrix.m[1][3] + entitymatrix.m[2][2]*tagmatrix.m[2][3]);
                        Matrix4x4_Copy(&tagmatrix, out);
 
                        // finally transformate by matrix of tag on parent entity
                        Matrix4x4_Concat(out, &attachmatrix, &tagmatrix);
                        out->m[0][3] = attachmatrix.m[0][3] + attachmatrix.m[0][0]*tagmatrix.m[0][3] + attachmatrix.m[0][1]*tagmatrix.m[1][3] + attachmatrix.m[0][2]*tagmatrix.m[2][3];
                        out->m[1][3] = attachmatrix.m[1][3] + attachmatrix.m[1][0]*tagmatrix.m[0][3] + attachmatrix.m[1][1]*tagmatrix.m[1][3] + attachmatrix.m[1][2]*tagmatrix.m[2][3];
-                       out->m[2][3] = attachmatrix.m[2][3] + attachmatrix.m[2][0]*tagmatrix.m[0][3] + attachmatrix.m[2][1]*tagmatrix.m[1][3] + attachmatrix.m[2][2]*tagmatrix.m[2][3];         
+                       out->m[2][3] = attachmatrix.m[2][3] + attachmatrix.m[2][0]*tagmatrix.m[0][3] + attachmatrix.m[2][1]*tagmatrix.m[1][3] + attachmatrix.m[2][2]*tagmatrix.m[2][3];
                        Matrix4x4_Copy(&tagmatrix, out);
 
                        ent = attachent;
@@ -3235,7 +3246,7 @@ int SV_GetTagMatrix (matrix4x4_t *out, edict_t *ent, int tagindex)
        Matrix4x4_Concat(out, &entitymatrix, &tagmatrix);
        out->m[0][3] = entitymatrix.m[0][3] + val->_float*(entitymatrix.m[0][0]*tagmatrix.m[0][3] + entitymatrix.m[0][1]*tagmatrix.m[1][3] + entitymatrix.m[0][2]*tagmatrix.m[2][3]);
        out->m[1][3] = entitymatrix.m[1][3] + val->_float*(entitymatrix.m[1][0]*tagmatrix.m[0][3] + entitymatrix.m[1][1]*tagmatrix.m[1][3] + entitymatrix.m[1][2]*tagmatrix.m[2][3]);
-       out->m[2][3] = entitymatrix.m[2][3] + val->_float*(entitymatrix.m[2][0]*tagmatrix.m[0][3] + entitymatrix.m[2][1]*tagmatrix.m[1][3] + entitymatrix.m[2][2]*tagmatrix.m[2][3]);           
+       out->m[2][3] = entitymatrix.m[2][3] + val->_float*(entitymatrix.m[2][0]*tagmatrix.m[0][3] + entitymatrix.m[2][1]*tagmatrix.m[1][3] + entitymatrix.m[2][2]*tagmatrix.m[2][3]);
 
        if ((val = GETEDICTFIELDVALUE(ent, eval_viewmodelforclient)) && val->edict)
        {// RENDER_VIEWMODEL magic
@@ -3250,7 +3261,7 @@ int SV_GetTagMatrix (matrix4x4_t *out, edict_t *ent, int tagindex)
                Matrix4x4_Concat(out, &entitymatrix, &tagmatrix);
                out->m[0][3] = entitymatrix.m[0][3] + val->_float*(entitymatrix.m[0][0]*tagmatrix.m[0][3] + entitymatrix.m[0][1]*tagmatrix.m[1][3] + entitymatrix.m[0][2]*tagmatrix.m[2][3]);
                out->m[1][3] = entitymatrix.m[1][3] + val->_float*(entitymatrix.m[1][0]*tagmatrix.m[0][3] + entitymatrix.m[1][1]*tagmatrix.m[1][3] + entitymatrix.m[1][2]*tagmatrix.m[2][3]);
-               out->m[2][3] = entitymatrix.m[2][3] + val->_float*(entitymatrix.m[2][0]*tagmatrix.m[0][3] + entitymatrix.m[2][1]*tagmatrix.m[1][3] + entitymatrix.m[2][2]*tagmatrix.m[2][3]);           
+               out->m[2][3] = entitymatrix.m[2][3] + val->_float*(entitymatrix.m[2][0]*tagmatrix.m[0][3] + entitymatrix.m[2][1]*tagmatrix.m[1][3] + entitymatrix.m[2][2]*tagmatrix.m[2][3]);
 
                /*
                // Cl_bob, ported from rendering code
@@ -3378,7 +3389,7 @@ void PF_search_begin(void)
 
        caseinsens = G_FLOAT(OFS_PARM1);
        quiet = G_FLOAT(OFS_PARM2);
-       
+
        for(handle = 0; handle < MAX_SEARCHES; handle++)
                if(!pr_fssearchlist[handle])
                        break;
@@ -3408,7 +3419,7 @@ void PF_search_end(void)
        int handle;
 
        handle = G_FLOAT(OFS_PARM0);
-       
+
        if(handle < 0 || handle >= MAX_SEARCHES)
        {
                Con_Printf("PF_search_end: invalid handle %i\n", handle);
@@ -3447,7 +3458,7 @@ void PF_search_getsize(void)
                Con_Printf("PF_search_getsize: no such handle %i\n", handle);
                return;
        }
-       
+
        G_FLOAT(OFS_RETURN) = pr_fssearchlist[handle]->numfilenames;
 }
 
@@ -3481,7 +3492,7 @@ void PF_search_getfilename(void)
                Con_Printf("PF_search_getfilename: invalid filenum %i\n", filenum);
                return;
        }
-       
+
        tmp = PR_GetTempString();
        strcpy(tmp, pr_fssearchlist[handle]->filenames[filenum]);
 
@@ -3756,6 +3767,11 @@ void PR_Cmd_Init(void)
        PR_Search_Init();
 }
 
+void PR_Cmd_Shutdown(void)
+{
+       Mem_FreePool (&pr_strings_mempool);
+}
+
 void PR_Cmd_Reset(void)
 {
        Mem_EmptyPool(pr_strings_mempool);