/** Turns to the movement direction, and walks the current distance if facing it. */
public static boolean SV_StepDirection(edict_t ent, float yaw, float dist) {
float[] move = {0, 0, 0};
float[] oldorigin = {0, 0, 0};
float delta;
ent.ideal_yaw = yaw;
M.M_ChangeYaw(ent);
yaw = (float) (yaw * Math.PI * 2 / 360);
move[0] = (float) Math.cos(yaw) * dist;
move[1] = (float) Math.sin(yaw) * dist;
move[2] = 0;
Math3D.VectorCopy(ent.s.origin, oldorigin);
if (SV_movestep(ent, move, false)) {
delta = ent.s.angles[Defines.YAW] - ent.ideal_yaw;
if (delta > 45 && delta < 315) { // not turned far enough, so don't
// take the step
Math3D.VectorCopy(oldorigin, ent.s.origin);
}
GameBase.gi.linkentity(ent);
GameBase.G_TouchTriggers(ent);
return true;
}
GameBase.gi.linkentity(ent);
GameBase.G_TouchTriggers(ent);
return false;
}
/** R_SetupFrame */
void R_SetupFrame() {
r_framecount++;
// build the transformation matrix for the given view angles
Math3D.VectorCopy(r_newrefdef.vieworg, r_origin);
Math3D.AngleVectors(r_newrefdef.viewangles, vpn, vright, vup);
// current viewcluster
mleaf_t leaf;
if ((r_newrefdef.rdflags & Defines.RDF_NOWORLDMODEL) == 0) {
r_oldviewcluster = r_viewcluster;
r_oldviewcluster2 = r_viewcluster2;
leaf = Mod_PointInLeaf(r_origin, r_worldmodel);
r_viewcluster = r_viewcluster2 = leaf.cluster;
// check above and below so crossing solid water doesn't draw wrong
if (leaf.contents == 0) { // look down a bit
Math3D.VectorCopy(r_origin, temp);
temp[2] -= 16;
leaf = Mod_PointInLeaf(temp, r_worldmodel);
if ((leaf.contents & Defines.CONTENTS_SOLID) == 0 && (leaf.cluster != r_viewcluster2))
r_viewcluster2 = leaf.cluster;
} else { // look up a bit
Math3D.VectorCopy(r_origin, temp);
temp[2] += 16;
leaf = Mod_PointInLeaf(temp, r_worldmodel);
if ((leaf.contents & Defines.CONTENTS_SOLID) == 0 && (leaf.cluster != r_viewcluster2))
r_viewcluster2 = leaf.cluster;
}
}
for (int i = 0; i < 4; i++) v_blend[i] = r_newrefdef.blend[i];
c_brush_polys = 0;
c_alias_polys = 0;
// clear out the portion of the screen that the NOWORLDMODEL defines
if ((r_newrefdef.rdflags & Defines.RDF_NOWORLDMODEL) != 0) {
GL11.glEnable(GL11.GL_SCISSOR_TEST);
GL11.glClearColor(0.3f, 0.3f, 0.3f, 1.0f);
GL11.glScissor(
r_newrefdef.x,
vid.height - r_newrefdef.height - r_newrefdef.y,
r_newrefdef.width,
r_newrefdef.height);
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
GL11.glClearColor(1.0f, 0.0f, 0.5f, 0.5f);
GL11.glDisable(GL11.GL_SCISSOR_TEST);
}
}
/** Does not change the entities velocity at all */
public static trace_t SV_PushEntity(edict_t ent, float[] push) {
trace_t trace;
float[] start = {0, 0, 0};
float[] end = {0, 0, 0};
int mask;
Math3D.VectorCopy(ent.s.origin, start);
Math3D.VectorAdd(start, push, end);
// FIXME: test this
// a goto statement was replaced.
boolean retry = false;
do {
if (ent.clipmask != 0) mask = ent.clipmask;
else mask = Defines.MASK_SOLID;
trace = GameBase.gi.trace(start, ent.mins, ent.maxs, end, ent, mask);
Math3D.VectorCopy(trace.endpos, ent.s.origin);
GameBase.gi.linkentity(ent);
retry = false;
if (trace.fraction != 1.0) {
SV_Impact(ent, trace);
// if the pushed entity went away and the pusher is still there
if (!trace.ent.inuse && ent.inuse) {
// move the pusher back and try again
Math3D.VectorCopy(start, ent.s.origin);
GameBase.gi.linkentity(ent);
// goto retry;
retry = true;
}
}
} while (retry);
if (ent.inuse) GameBase.G_TouchTriggers(ent);
return trace;
}
// FIXME: since we need to test end position contents here, can we avoid
// doing it again later in catagorize position?
public static boolean SV_movestep(edict_t ent, float[] move, boolean relink) {
float dz;
float[] oldorg = {0, 0, 0};
float[] neworg = {0, 0, 0};
float[] end = {0, 0, 0};
trace_t trace = null; // = new trace_t();
int i;
float stepsize;
float[] test = {0, 0, 0};
int contents;
// try the move
Math3D.VectorCopy(ent.s.origin, oldorg);
Math3D.VectorAdd(ent.s.origin, move, neworg);
// flying monsters don't step up
if ((ent.flags & (Defines.FL_SWIM | Defines.FL_FLY)) != 0) {
// try one move with vertical motion, then one without
for (i = 0; i < 2; i++) {
Math3D.VectorAdd(ent.s.origin, move, neworg);
if (i == 0 && ent.enemy != null) {
if (ent.goalentity == null) ent.goalentity = ent.enemy;
dz = ent.s.origin[2] - ent.goalentity.s.origin[2];
if (ent.goalentity.client != null) {
if (dz > 40) neworg[2] -= 8;
if (!((ent.flags & Defines.FL_SWIM) != 0 && (ent.waterlevel < 2)))
if (dz < 30) neworg[2] += 8;
} else {
if (dz > 8) neworg[2] -= 8;
else if (dz > 0) neworg[2] -= dz;
else if (dz < -8) neworg[2] += 8;
else neworg[2] += dz;
}
}
trace =
GameBase.gi.trace(
ent.s.origin, ent.mins, ent.maxs, neworg, ent, Defines.MASK_MONSTERSOLID);
// fly monsters don't enter water voluntarily
if ((ent.flags & Defines.FL_FLY) != 0) {
if (ent.waterlevel == 0) {
test[0] = trace.endpos[0];
test[1] = trace.endpos[1];
test[2] = trace.endpos[2] + ent.mins[2] + 1;
contents = GameBase.gi.pointcontents.pointcontents(test);
if ((contents & Defines.MASK_WATER) != 0) return false;
}
}
// swim monsters don't exit water voluntarily
if ((ent.flags & Defines.FL_SWIM) != 0) {
if (ent.waterlevel < 2) {
test[0] = trace.endpos[0];
test[1] = trace.endpos[1];
test[2] = trace.endpos[2] + ent.mins[2] + 1;
contents = GameBase.gi.pointcontents.pointcontents(test);
if ((contents & Defines.MASK_WATER) == 0) return false;
}
}
if (trace.fraction == 1) {
Math3D.VectorCopy(trace.endpos, ent.s.origin);
if (relink) {
GameBase.gi.linkentity(ent);
GameBase.G_TouchTriggers(ent);
}
return true;
}
if (ent.enemy == null) break;
}
return false;
}
// push down from a step height above the wished position
if ((ent.monsterinfo.aiflags & Defines.AI_NOSTEP) == 0) stepsize = GameBase.STEPSIZE;
else stepsize = 1;
neworg[2] += stepsize;
Math3D.VectorCopy(neworg, end);
end[2] -= stepsize * 2;
trace = GameBase.gi.trace(neworg, ent.mins, ent.maxs, end, ent, Defines.MASK_MONSTERSOLID);
if (trace.allsolid) return false;
if (trace.startsolid) {
neworg[2] -= stepsize;
trace = GameBase.gi.trace(neworg, ent.mins, ent.maxs, end, ent, Defines.MASK_MONSTERSOLID);
if (trace.allsolid || trace.startsolid) return false;
}
// don't go in to water
if (ent.waterlevel == 0) {
test[0] = trace.endpos[0];
test[1] = trace.endpos[1];
test[2] = trace.endpos[2] + ent.mins[2] + 1;
contents = GameBase.gi.pointcontents.pointcontents(test);
if ((contents & Defines.MASK_WATER) != 0) return false;
}
if (trace.fraction == 1) {
// if monster had the ground pulled out, go ahead and fall
if ((ent.flags & Defines.FL_PARTIALGROUND) != 0) {
Math3D.VectorAdd(ent.s.origin, move, ent.s.origin);
if (relink) {
GameBase.gi.linkentity(ent);
GameBase.G_TouchTriggers(ent);
}
ent.groundentity = null;
return true;
}
return false; // walked off an edge
}
// check point traces down for dangling corners
Math3D.VectorCopy(trace.endpos, ent.s.origin);
if (!M.M_CheckBottom(ent)) {
if ((ent.flags & Defines.FL_PARTIALGROUND) != 0) {
// entity had floor mostly pulled out from underneath it
// and is trying to correct
if (relink) {
GameBase.gi.linkentity(ent);
GameBase.G_TouchTriggers(ent);
}
return true;
}
Math3D.VectorCopy(oldorg, ent.s.origin);
return false;
}
if ((ent.flags & Defines.FL_PARTIALGROUND) != 0) {
ent.flags &= ~Defines.FL_PARTIALGROUND;
}
ent.groundentity = trace.ent;
ent.groundentity_linkcount = trace.ent.linkcount;
// the move is ok
if (relink) {
GameBase.gi.linkentity(ent);
GameBase.G_TouchTriggers(ent);
}
return true;
}
/** Toss, bounce, and fly movement. When onground, do nothing. */
public static void SV_Physics_Toss(edict_t ent) {
trace_t trace;
float[] move = {0, 0, 0};
float backoff;
edict_t slave;
boolean wasinwater;
boolean isinwater;
float[] old_origin = {0, 0, 0};
// regular thinking
SV_RunThink(ent);
// if not a team captain, so movement will be handled elsewhere
if ((ent.flags & Defines.FL_TEAMSLAVE) != 0) return;
if (ent.velocity[2] > 0) ent.groundentity = null;
// check for the groundentity going away
if (ent.groundentity != null) if (!ent.groundentity.inuse) ent.groundentity = null;
// if onground, return without moving
if (ent.groundentity != null) return;
Math3D.VectorCopy(ent.s.origin, old_origin);
SV_CheckVelocity(ent);
// add gravity
if (ent.movetype != Defines.MOVETYPE_FLY && ent.movetype != Defines.MOVETYPE_FLYMISSILE)
SV_AddGravity(ent);
// move angles
Math3D.VectorMA(ent.s.angles, Defines.FRAMETIME, ent.avelocity, ent.s.angles);
// move origin
Math3D.VectorScale(ent.velocity, Defines.FRAMETIME, move);
trace = SV_PushEntity(ent, move);
if (!ent.inuse) return;
if (trace.fraction < 1) {
if (ent.movetype == Defines.MOVETYPE_BOUNCE) backoff = 1.5f;
else backoff = 1;
GameBase.ClipVelocity(ent.velocity, trace.plane.normal, ent.velocity, backoff);
// stop if on ground
if (trace.plane.normal[2] > 0.7) {
if (ent.velocity[2] < 60 || ent.movetype != Defines.MOVETYPE_BOUNCE) {
ent.groundentity = trace.ent;
ent.groundentity_linkcount = trace.ent.linkcount;
Math3D.VectorCopy(Globals.vec3_origin, ent.velocity);
Math3D.VectorCopy(Globals.vec3_origin, ent.avelocity);
}
}
// if (ent.touch)
// ent.touch (ent, trace.ent, &trace.plane, trace.surface);
}
// check for water transition
wasinwater = (ent.watertype & Defines.MASK_WATER) != 0;
ent.watertype = GameBase.gi.pointcontents.pointcontents(ent.s.origin);
isinwater = (ent.watertype & Defines.MASK_WATER) != 0;
if (isinwater) ent.waterlevel = 1;
else ent.waterlevel = 0;
if (!wasinwater && isinwater)
GameBase.gi.positioned_sound(
old_origin, ent, Defines.CHAN_AUTO, GameBase.gi.soundindex("misc/h2ohit1.wav"), 1, 1, 0);
else if (wasinwater && !isinwater)
GameBase.gi.positioned_sound(
ent.s.origin,
ent,
Defines.CHAN_AUTO,
GameBase.gi.soundindex("misc/h2ohit1.wav"),
1,
1,
0);
// move teamslaves
for (slave = ent.teamchain; slave != null; slave = slave.teamchain) {
Math3D.VectorCopy(ent.s.origin, slave.s.origin);
GameBase.gi.linkentity(slave);
}
}
/** Objects need to be moved back on a failed push, otherwise riders would continue to slide. */
public static boolean SV_Push(edict_t pusher, float[] move, float[] amove) {
int i, e;
edict_t check, block[];
float[] mins = {0, 0, 0};
float[] maxs = {0, 0, 0};
pushed_t p;
float[] org = {0, 0, 0};
float[] org2 = {0, 0, 0};
float[] move2 = {0, 0, 0};
float[] forward = {0, 0, 0};
float[] right = {0, 0, 0};
float[] up = {0, 0, 0};
// clamp the move to 1/8 units, so the position will
// be accurate for client side prediction
for (i = 0; i < 3; i++) {
float temp;
temp = move[i] * 8.0f;
if (temp > 0.0) temp += 0.5;
else temp -= 0.5;
move[i] = 0.125f * (int) temp;
}
// find the bounding box
for (i = 0; i < 3; i++) {
mins[i] = pusher.absmin[i] + move[i];
maxs[i] = pusher.absmax[i] + move[i];
}
// we need this for pushing things later
Math3D.VectorSubtract(Globals.vec3_origin, amove, org);
Math3D.AngleVectors(org, forward, right, up);
// save the pusher's original position
GameBase.pushed[GameBase.pushed_p].ent = pusher;
Math3D.VectorCopy(pusher.s.origin, GameBase.pushed[GameBase.pushed_p].origin);
Math3D.VectorCopy(pusher.s.angles, GameBase.pushed[GameBase.pushed_p].angles);
if (pusher.client != null)
GameBase.pushed[GameBase.pushed_p].deltayaw =
pusher.client.ps.pmove.delta_angles[Defines.YAW];
GameBase.pushed_p++;
// move the pusher to it's final position
Math3D.VectorAdd(pusher.s.origin, move, pusher.s.origin);
Math3D.VectorAdd(pusher.s.angles, amove, pusher.s.angles);
GameBase.gi.linkentity(pusher);
// see if any solid entities are inside the final position
// check= g_edicts + 1;
for (e = 1; e < GameBase.num_edicts; e++) {
check = GameBase.g_edicts[e];
if (!check.inuse) continue;
if (check.movetype == Defines.MOVETYPE_PUSH
|| check.movetype == Defines.MOVETYPE_STOP
|| check.movetype == Defines.MOVETYPE_NONE
|| check.movetype == Defines.MOVETYPE_NOCLIP) continue;
if (check.area.prev == null) continue; // not linked in anywhere
// if the entity is standing on the pusher, it will definitely be
// moved
if (check.groundentity != pusher) {
// see if the ent needs to be tested
if (check.absmin[0] >= maxs[0]
|| check.absmin[1] >= maxs[1]
|| check.absmin[2] >= maxs[2]
|| check.absmax[0] <= mins[0]
|| check.absmax[1] <= mins[1]
|| check.absmax[2] <= mins[2]) continue;
// see if the ent's bbox is inside the pusher's final position
if (SV_TestEntityPosition(check) == null) continue;
}
if ((pusher.movetype == Defines.MOVETYPE_PUSH) || (check.groundentity == pusher)) {
// move this entity
GameBase.pushed[GameBase.pushed_p].ent = check;
Math3D.VectorCopy(check.s.origin, GameBase.pushed[GameBase.pushed_p].origin);
Math3D.VectorCopy(check.s.angles, GameBase.pushed[GameBase.pushed_p].angles);
GameBase.pushed_p++;
// try moving the contacted entity
Math3D.VectorAdd(check.s.origin, move, check.s.origin);
if (check.client != null) { // FIXME: doesn't rotate monsters?
check.client.ps.pmove.delta_angles[Defines.YAW] += amove[Defines.YAW];
}
// figure movement due to the pusher's amove
Math3D.VectorSubtract(check.s.origin, pusher.s.origin, org);
org2[0] = Math3D.DotProduct(org, forward);
org2[1] = -Math3D.DotProduct(org, right);
org2[2] = Math3D.DotProduct(org, up);
Math3D.VectorSubtract(org2, org, move2);
Math3D.VectorAdd(check.s.origin, move2, check.s.origin);
// may have pushed them off an edge
if (check.groundentity != pusher) check.groundentity = null;
block = SV_TestEntityPosition(check);
if (block == null) { // pushed ok
GameBase.gi.linkentity(check);
// impact?
continue;
}
// if it is ok to leave in the old position, do it
// this is only relevent for riding entities, not pushed
// FIXME: this doesn't acount for rotation
Math3D.VectorSubtract(check.s.origin, move, check.s.origin);
block = SV_TestEntityPosition(check);
if (block == null) {
GameBase.pushed_p--;
continue;
}
}
// save off the obstacle so we can call the block function
GameBase.obstacle = check;
// move back any entities we already moved
// go backwards, so if the same entity was pushed
// twice, it goes back to the original position
for (int ip = GameBase.pushed_p - 1; ip >= 0; ip--) {
p = GameBase.pushed[ip];
Math3D.VectorCopy(p.origin, p.ent.s.origin);
Math3D.VectorCopy(p.angles, p.ent.s.angles);
if (p.ent.client != null) {
p.ent.client.ps.pmove.delta_angles[Defines.YAW] = (short) p.deltayaw;
}
GameBase.gi.linkentity(p.ent);
}
return false;
}
// FIXME: is there a better way to handle this?
// see if anything we moved has touched a trigger
for (int ip = GameBase.pushed_p - 1; ip >= 0; ip--)
GameBase.G_TouchTriggers(GameBase.pushed[ip].ent);
return true;
}
public static int SV_FlyMove(edict_t ent, float time, int mask) {
edict_t hit;
int bumpcount, numbumps;
float[] dir = {0.0f, 0.0f, 0.0f};
float d;
int numplanes;
float[][] planes = new float[MAX_CLIP_PLANES][3];
float[] primal_velocity = {0.0f, 0.0f, 0.0f};
float[] original_velocity = {0.0f, 0.0f, 0.0f};
float[] new_velocity = {0.0f, 0.0f, 0.0f};
int i, j;
trace_t trace;
float[] end = {0.0f, 0.0f, 0.0f};
float time_left;
int blocked;
numbumps = 4;
blocked = 0;
Math3D.VectorCopy(ent.velocity, original_velocity);
Math3D.VectorCopy(ent.velocity, primal_velocity);
numplanes = 0;
time_left = time;
ent.groundentity = null;
for (bumpcount = 0; bumpcount < numbumps; bumpcount++) {
for (i = 0; i < 3; i++) end[i] = ent.s.origin[i] + time_left * ent.velocity[i];
trace = GameBase.gi.trace(ent.s.origin, ent.mins, ent.maxs, end, ent, mask);
if (trace.allsolid) { // entity is trapped in another solid
Math3D.VectorCopy(Globals.vec3_origin, ent.velocity);
return 3;
}
if (trace.fraction > 0) { // actually covered some distance
Math3D.VectorCopy(trace.endpos, ent.s.origin);
Math3D.VectorCopy(ent.velocity, original_velocity);
numplanes = 0;
}
if (trace.fraction == 1) break; // moved the entire distance
hit = trace.ent;
if (trace.plane.normal[2] > 0.7) {
blocked |= 1; // floor
if (hit.solid == Defines.SOLID_BSP) {
ent.groundentity = hit;
ent.groundentity_linkcount = hit.linkcount;
}
}
if (trace.plane.normal[2] == 0.0f) {
blocked |= 2; // step
}
//
// run the impact function
//
SV_Impact(ent, trace);
if (!ent.inuse) break; // removed by the impact function
time_left -= time_left * trace.fraction;
// cliped to another plane
if (numplanes >= MAX_CLIP_PLANES) { // this shouldn't
// really happen
Math3D.VectorCopy(Globals.vec3_origin, ent.velocity);
return 3;
}
Math3D.VectorCopy(trace.plane.normal, planes[numplanes]);
numplanes++;
//
// modify original_velocity so it parallels all of the clip planes
//
for (i = 0; i < numplanes; i++) {
GameBase.ClipVelocity(original_velocity, planes[i], new_velocity, 1);
for (j = 0; j < numplanes; j++)
if ((j != i) && !Math3D.VectorEquals(planes[i], planes[j])) {
if (Math3D.DotProduct(new_velocity, planes[j]) < 0) break; // not ok
}
if (j == numplanes) break;
}
if (i != numplanes) { // go along this plane
Math3D.VectorCopy(new_velocity, ent.velocity);
} else { // go along the crease
if (numplanes != 2) {
// gi.dprintf ("clip velocity, numplanes ==
// %i\n",numplanes);
Math3D.VectorCopy(Globals.vec3_origin, ent.velocity);
return 7;
}
Math3D.CrossProduct(planes[0], planes[1], dir);
d = Math3D.DotProduct(dir, ent.velocity);
Math3D.VectorScale(dir, d, ent.velocity);
}
//
// if original velocity is against the original velocity, stop dead
// to avoid tiny occilations in sloping corners
//
if (Math3D.DotProduct(ent.velocity, primal_velocity) <= 0) {
Math3D.VectorCopy(Globals.vec3_origin, ent.velocity);
return blocked;
}
}
return blocked;
}