--- /dev/null
+#include "speed.qh"
+
+// bones_was_here: TODO implement subscript support for vectors in gmqcc
+// or _something_ so code like this can be cheaper...
+#define ARRAY_AS_VECTOR(a) vec3((a)[0], (a)[1], (a)[2])
+#define VECTOR_TO_ARRAY(a, e) (a)[0] = (e).x, (a)[1] = (e).y, (a)[2] = (e).z
+vector target_speed_calculatevelocity(entity this, float speed, entity pushed_entity)
+{
+ bool is_percentage = boolean(this.spawnflags & SPEED_PERCENTAGE);
+ bool is_add = boolean(this.spawnflags & SPEED_ADD);
+ bool is_launcher = boolean(this.spawnflags & SPEED_LAUNCHER);
+
+ bool is_positive[3];
+ is_positive[0] = boolean(this.spawnflags & SPEED_POSITIVE_X);
+ is_positive[1] = boolean(this.spawnflags & SPEED_POSITIVE_Y);
+ is_positive[2] = boolean(this.spawnflags & SPEED_POSITIVE_Z);
+
+ bool is_negative[3];
+ is_negative[0] = boolean(this.spawnflags & SPEED_NEGATIVE_X);
+ is_negative[1] = boolean(this.spawnflags & SPEED_NEGATIVE_Y);
+ is_negative[2] = boolean(this.spawnflags & SPEED_NEGATIVE_Z);
+
+ // speed cannot be negative except when subtracting
+ if(!is_add)
+ {
+ speed = max(speed, 0);
+ }
+
+ float pushvel[3];
+ VECTOR_TO_ARRAY(pushvel, pushed_entity.velocity);
+
+ for(int i = 0; i < 3; ++i)
+ {
+ // launcher can only be either positive or negative not both
+ if(is_launcher && is_positive[i] && is_negative[i])
+ {
+ is_positive[i] = is_negative[i] = false;
+ }
+
+ // ignore this direction
+ if(!is_positive[i] && !is_negative[i])
+ {
+ pushvel[i] = 0;
+ }
+ }
+
+ float oldspeed = vlen(ARRAY_AS_VECTOR(pushvel));
+
+ // the speed field is used to specify the percentage of the current speed
+ if(is_percentage)
+ {
+ speed = oldspeed * speed / 100;
+ }
+
+ float launcherspeed = 0;
+
+ // do this properly when not playing a Q3 map, do not put this in the loop
+ if(!STAT(Q3COMPAT, pushed_entity))
+ {
+ launcherspeed += speed;
+
+ // add the add speed in the same variable
+ // as it goes in the same direction
+ if(is_add) launcherspeed += oldspeed;
+ }
+
+ for(int i = 0; i < 3; ++i)
+ {
+ if(((pushvel[i] != 0) || is_launcher) && (is_positive[i] != is_negative[i]))
+ {
+ if(is_launcher)
+ {
+ // every direction weighs the same amount on launchers
+ // movedir does not matter
+ pushvel[i] = 1;
+
+ // this does not belong inside the loop
+ // only simulate this bug when playing a Q3 map
+ if(STAT(Q3COMPAT, pushed_entity))
+ {
+ launcherspeed += speed;
+
+ // add the add speed in the same variable
+ // as it goes in the same direction
+ if(is_add) launcherspeed += oldspeed;
+ }
+ }
+
+ if(is_positive[i])
+ {
+ pushvel[i] = copysign(pushvel[i], 1);
+ }
+ else if(is_negative[i])
+ {
+ pushvel[i] = copysign(pushvel[i], -1);
+ }
+ }
+ }
+
+ float oldvel[3];
+ VECTOR_TO_ARRAY(oldvel, pushed_entity.velocity);
+
+ if(is_launcher)
+ {
+ // launcher will always launch you in the correct direction
+ // even if speed is set to a negative value, fabs() is correct
+ VECTOR_TO_ARRAY(pushvel, normalize(ARRAY_AS_VECTOR(pushvel)) * fabs(launcherspeed));
+ }
+ else
+ {
+ if(!is_add)
+ VECTOR_TO_ARRAY(pushvel, normalize(ARRAY_AS_VECTOR(pushvel)) * speed);
+ else
+ VECTOR_TO_ARRAY(pushvel, normalize(ARRAY_AS_VECTOR(pushvel)) * speed + ARRAY_AS_VECTOR(oldvel));
+ }
+
+ for(int i = 0; i < 3; ++i)
+ {
+ // preserve unaffected directions
+ if(!is_positive[i] && !is_negative[i])
+ {
+ pushvel[i] = oldvel[i];
+ }
+ }
+
+ return ARRAY_AS_VECTOR(pushvel);
+}
+#undef ARRAY_AS_VECTOR
+#undef VECTOR_TO_ARRAY
+
+REGISTER_NET_LINKED(ENT_CLIENT_TARGET_SPEED)
+
+void target_speed_use(entity this, entity actor, entity trigger)
+{
+ if(this.active != ACTIVE_ACTIVE)
+ return;
+
+ actor.velocity = target_speed_calculatevelocity(this, this.speed, actor);
+}
+
+void target_speed_reset(entity this)
+{
+ this.active = ACTIVE_ACTIVE;
+}
+
+#ifdef SVQC
+void target_speed_link(entity this);
+
+/*
+ * ENTITY PARAMETERS:
+ *
+ * targetname: Activating trigger points to this.
+ * speed: Speed value to set (default: 100).
+ */
+spawnfunc(target_speed)
+{
+ this.active = ACTIVE_ACTIVE;
+ this.setactive = generic_netlinked_setactive;
+ this.use = target_speed_use;
+ this.reset = target_speed_reset;
+
+ // support a 0 speed setting AND a default
+ string s = GetField_fullspawndata(this, "speed");
+ if (!s || s == "")
+ this.speed = 100;
+
+ target_speed_link(this);
+}
+
+bool target_speed_send(entity this, entity to, float sf)
+{
+ WriteHeader(MSG_ENTITY, ENT_CLIENT_TARGET_SPEED);
+
+ WriteShort(MSG_ENTITY, this.spawnflags);
+ WriteByte(MSG_ENTITY, this.active);
+ WriteString(MSG_ENTITY, this.targetname);
+ WriteCoord(MSG_ENTITY, this.speed);
+
+ return true;
+}
+
+void target_speed_link(entity this)
+{
+ Net_LinkEntity(this, false, 0, target_speed_send);
+}
+
+#elif defined(CSQC)
+
+void target_speed_remove(entity this)
+{
+ strfree(this.targetname);
+}
+
+NET_HANDLE(ENT_CLIENT_TARGET_SPEED, bool isnew)
+{
+ this.spawnflags = ReadShort();
+ this.active = ReadByte();
+ this.targetname = strzone(ReadString());
+ this.speed = ReadCoord();
+
+ this.use = target_speed_use;
+ this.entremove = target_speed_remove;
+
+ return true;
+}
+#endif
projects / xonotic / xonotic-data.pk3dir.git / commitdiff