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nice little test of box clipping. doesn't get installed :)

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Bill Currie 2007-09-23 03:48:05 +00:00 committed by Jeff Teunissen
parent f7faad118b
commit 0234b7ed93
2 changed files with 122 additions and 0 deletions
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6
libs/models/Makefile.am
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@ -4,6 +4,12 @@ SUBDIRS= alias brush sprite
CFLAGS+= @PREFER_PIC@
INCLUDES= -I$(top_srcdir)/include
noinst_PROGRAMS= testclip
testclip_SOURCES=testclip.c
testclip_LDADD= libQFmodels.la
testclip_DEPENDENCIES= libQFmodels.la
lib_LTLIBRARIES= libQFmodels.la @VID_MODEL_TARGETS@
EXTRA_LTLIBRARIES= \
libQFmodels_gl.la libQFmodels_sw.la

116
libs/models/testclip.c Normal file
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@ -0,0 +1,116 @@
#include "world.h"
dclipnode_t clipnodes[] = {
{ 0, { 1, -2}},
{ 1, {-2, 2}},
{ 2, {-2, 3}},
{ 3, { 4, -2}},
{ 4, { 5, 6}},
{ 5, {-2, -1}},
{ 6, { 7, 8}},
{ 7, {-1, -2}},
{ 8, { 9, 13}},
{ 9, {10, -1}},
{ 10, {-1, 11}},
{ 11, {12, -2}},
{ 12, {-2, -1}},
{ 13, {-1, -2}},
};
mplane_t planes[] = {
{{0, 1, 0}, -96, 1, 0}, // 0 wall at right
{{0, 1, 0}, 96, 1, 0}, // 1 wall at left (with ditch)
{{1, 0, 0}, 128, 0, 0}, // 2 wall at front (with shelves)
{{1, 0, 0}, -32, 0, 0}, // 3 wall at back
{{0, 0, 1}, 32, 2, 0}, // 4 top of shelves
{{0, 0, 1}, 104, 2, 0}, // 5 ceiling
{{0, 1, 0}, 32, 1, 0}, // 6 edge of ditch
{{0, 0, 1}, -24, 2, 0}, // 7 floor of ditch
{{0, 0, 1}, 24, 2, 0}, // 8 bottom of selves
{{1, 0, 0}, 64, 0, 0}, // 9 end of shelves
{{0, 1, 0}, -16, 1, 0}, // 10 ditch side of 2nd shelf
{{0, 1, 0}, -64, 1, 0}, // 11 ditch side of 1st shelf
{{0, 1, 0}, -48, 1, 0}, // 12 1st shelf side of 2nd shelf
{{0, 0, 1}, 8, 2, 0}, // 13 main floor
};
hull_t hull = {
clipnodes,
planes,
0,
13,
{0, 0, 0},
{0, 0, 0},
};
static void do_trace (vec3_t start, vec3_t end)
{
trace_t trace;
trace.allsolid = true;
trace.startsolid = false;
trace.inopen = false;
trace.inwater = false;
trace.fraction = 1;
trace.extents[0] = 16;
trace.extents[1] = 16;
trace.extents[2] = 28;
trace.isbox = true;
MOD_TraceLine (&hull, 0, start, end, &trace);
printf ("(%g %g %g) (%g %g %g) -> %3g %d %d %d\n",
start[0], start[1], start[2],
end[0], end[1], end[2], trace.fraction,
trace.allsolid, trace.startsolid, trace.inopen);
}
int main (int argc, char **argv)
{
int i;
vec3_t start, end;
for (i = 0; i < 3; i++) {
start[0] = 0;
start[1] = 47 + i;
start[2] = 40;
VectorCopy (start, end);
end[2] -= 8;
do_trace (start, end);
}
puts("");
for (i = 0; i < 3; i++) {
start[0] = 0;
start[1] = 52;
start[2] = 35 + i;
VectorCopy (start, end);
end[1] -= 28;
do_trace (start, end);
}
puts("");
for (i = 0; i < 3; i++) {
start[0] = 47 + i;
start[1] = -80;
start[2] = 36;
VectorCopy (start, end);
end[0] += 2;
do_trace (start, end);
}
puts("");
for (i = 0; i < 3; i++) {
start[0] = 47;
start[1] = -80;
start[2] = 59 + i;
VectorCopy (start, end);
end[0] += 2;
do_trace (start, end);
}
puts("");
for (i = 0; i < 3; i++) {
start[0] = 47 + i;
start[1] = -80;
start[2] = 76;
VectorCopy (start, end);
end[2] -= 32;
do_trace (start, end);
}
return 0;
}