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[xonotic/xonotic-data.pk3dir.git] / qcsrc / ecs / systems / physics.qc
index 4af74e002d3a2dabfcc28361d3a03197217d8281..167b492356195e61f9d63d369b8443470a2a6e8a 100644 (file)
@@ -49,7 +49,7 @@ void sys_phys_update(entity this, float dt)
 
        float maxspeed_mod = 1;
 
-// conveyors: first fix velocity
+       // conveyors: first fix velocity
        if (this.conveyor.active) { this.velocity -= this.conveyor.movedir; }
        MUTATOR_CALLHOOK(PlayerPhysics, this, dt);
 
@@ -90,15 +90,17 @@ void sys_phys_update(entity this, float dt)
        if (this.flags & FL_WATERJUMP) {
                this.velocity_x = this.movedir.x;
                this.velocity_y = this.movedir.y;
-               if (this.waterlevel == WATERLEVEL_NONE) {
+               if (time > this.teleport_time || this.waterlevel == WATERLEVEL_NONE) {
                        this.flags &= ~FL_WATERJUMP;
+                       this.teleport_time = 0;
                }
        } else if (MUTATOR_CALLHOOK(PM_Physics, this, maxspeed_mod, dt)) {
                // handled
        } else if (this.move_movetype == MOVETYPE_NOCLIP
-           || this.move_movetype == MOVETYPE_FLY
-           || this.move_movetype == MOVETYPE_FLY_WORLDONLY
-           || MUTATOR_CALLHOOK(IsFlying, this)) {
+               || this.move_movetype == MOVETYPE_FLY
+               || this.move_movetype == MOVETYPE_FLY_WORLDONLY
+               || MUTATOR_CALLHOOK(IsFlying, this))
+       {
                this.com_phys_friction = PHYS_FRICTION(this);
                this.com_phys_vel_max = PHYS_MAXSPEED(this) * maxspeed_mod;
                this.com_phys_acc_rate = PHYS_ACCELERATE(this) * maxspeed_mod;
@@ -112,18 +114,18 @@ void sys_phys_update(entity this, float dt)
                sys_phys_simulate(this, dt);
                this.com_phys_water = false;
                this.jumppadcount = 0;
-       } else if (time < this.ladder_time) {
+       } else if (this.ladder_entity) {
                this.com_phys_friction = PHYS_FRICTION(this);
                this.com_phys_vel_max = PHYS_MAXSPEED(this) * maxspeed_mod;
                this.com_phys_acc_rate = PHYS_ACCELERATE(this) * maxspeed_mod;
-               this.com_phys_gravity = '0 0 -1' * PHYS_GRAVITY(this) * dt;
+               this.com_phys_gravity = -PHYS_GRAVITY(this) * dt;
                if (PHYS_ENTGRAVITY(this)) { this.com_phys_gravity *= PHYS_ENTGRAVITY(this); }
                this.com_phys_ladder = true;
                this.com_phys_friction_air = true;
                sys_phys_simulate(this, dt);
                this.com_phys_friction_air = false;
                this.com_phys_ladder = false;
-               this.com_phys_gravity = '0 0 0';
+               this.com_phys_gravity = 0;
        } else if (ITEMS_STAT(this) & IT_USING_JETPACK) {
                PM_jetpack(this, maxspeed_mod, dt);
        } else if (IS_ONGROUND(this) && (!IS_ONSLICK(this) || !PHYS_SLICK_APPLYGRAVITY(this))) {
@@ -134,14 +136,14 @@ void sys_phys_update(entity this, float dt)
                        }
                }
                this.com_phys_vel_max = PHYS_MAXSPEED(this) * maxspeed_mod;
-               this.com_phys_gravity = '0 0 -1' * PHYS_GRAVITY(this) * dt;
+               this.com_phys_gravity = -PHYS_GRAVITY(this) * dt;
                if (PHYS_ENTGRAVITY(this)) { this.com_phys_gravity *= PHYS_ENTGRAVITY(this); }
                this.com_phys_ground = true;
                this.com_phys_vel_2d = true;
                sys_phys_simulate(this, dt);
                this.com_phys_vel_2d = false;
                this.com_phys_ground = false;
-               this.com_phys_gravity = '0 0 0';
+               this.com_phys_gravity = 0;
        } else {
                this.com_phys_acc_rate_air = PHYS_AIRACCELERATE(this) * min(maxspeed_mod, 1);
                this.com_phys_acc_rate_air_stop = PHYS_AIRSTOPACCELERATE(this) * maxspeed_mod;
@@ -162,7 +164,7 @@ void sys_phys_update(entity this, float dt)
 void sys_phys_postupdate(entity this)
 {
        if (IS_ONGROUND(this)) { this.lastground = time; }
-// conveyors: then break velocity again
+       // conveyors: then break velocity again
        if (this.conveyor.active) { this.velocity += this.conveyor.movedir; }
        this.lastflags = this.flags;
 
@@ -181,17 +183,17 @@ void sys_phys_simulate(entity this, float dt)
                UNSET_ONGROUND(this);
 
                if (this.com_phys_friction_air) {
-                       const vector g = -this.com_phys_gravity;
-                       this.velocity_z += g.z / 2;
+                       const float grav = -this.com_phys_gravity;
+                       this.velocity_z += grav / 2;
                        this.velocity = this.velocity * (1 - dt * this.com_phys_friction);
-                       this.velocity_z += g.z / 2;
+                       this.velocity_z += grav / 2;
                }
        }
 
        if (this.com_phys_water) {
                // water jump only in certain situations
                // this mimics quakeworld code
-               if (this.com_in_jump && this.waterlevel == WATERLEVEL_SWIMMING && this.velocity_z >= -180 && !this.viewloc) {
+               if (this.com_in_jump && this.waterlevel == WATERLEVEL_SWIMMING && this.velocity_z >= -180 && !this.viewloc && !PHYS_FROZEN(this)) {
                        vector yawangles = '0 1 0' * this.v_angle.y;
                        vector forward, right, up;
                        MAKE_VECTORS(yawangles, forward, right, up);
@@ -215,16 +217,26 @@ void sys_phys_simulate(entity this, float dt)
        MAKE_VECTORS(vmul(this.v_angle, (this.com_phys_vel_2d ? '0 1 0' : '1 1 1')), forward, right, up);
        // wishvel = forward * PHYS_CS(this).movement.x + right * PHYS_CS(this).movement.y + up * PHYS_CS(this).movement.z;
        vector wishvel = forward * PHYS_CS(this).movement.x
-           + right * PHYS_CS(this).movement.y
-           + '0 0 1' * PHYS_CS(this).movement.z * (this.com_phys_vel_2d ? 0 : 1);
+               + right * PHYS_CS(this).movement.y
+               + '0 0 1' * (PHYS_CS(this).movement.z * (this.com_phys_vel_2d ? 0 : 1));
        if (this.com_phys_water) {
-               if (PHYS_INPUT_BUTTON_CROUCH(this)) {
-                       wishvel.z = -PHYS_MAXSPEED(this);
+               if (PHYS_FROZEN(this))
+               {
+                       if(this.waterlevel >= WATERLEVEL_SUBMERGED && this.velocity.z >= -70) // don't change the speed too abruptally
+                               wishvel = '0 0 160'; // resurface
+                       else if(this.waterlevel >= WATERLEVEL_SWIMMING && this.velocity.z > 0)
+                               wishvel = eZ * 1.3 * min(this.velocity.z, 160); // resurface a bit more above the surface
                }
-               if (this.viewloc) {
-                       wishvel.z = -160;    // drift anyway
-               } else if (wishvel == '0 0 0') {
-                       wishvel = '0 0 -60'; // drift towards bottom
+               else
+               {
+                       if (PHYS_INPUT_BUTTON_CROUCH(this)) {
+                               wishvel.z = -PHYS_MAXSPEED(this);
+                       }
+                       if (this.viewloc) {
+                               wishvel.z = -160;    // drift anyway
+                       } else if (wishvel == '0 0 0') {
+                               wishvel = '0 0 -60'; // drift towards bottom
+                       }
                }
        }
        if (this.com_phys_ladder) {
@@ -285,8 +297,7 @@ void sys_phys_simulate(entity this, float dt)
                        // log dv/dt = logaccel + logmaxspeed + log(1 - accelqw) (when fast)
                        float strafity = IsMoveInDirection(PHYS_CS(this).movement, -90) + IsMoveInDirection(PHYS_CS(this).movement, +90);  // if one is nonzero, other is always zero
                        if (PHYS_MAXAIRSTRAFESPEED(this)) {
-                               wishspeed =
-                                   min(wishspeed,
+                               wishspeed = min(wishspeed,
                                        GeomLerp(this.com_phys_vel_max_air, strafity, this.com_phys_vel_max_air_strafe));
                        }
                        if (PHYS_AIRSTRAFEACCELERATE(this)) {
@@ -294,9 +305,9 @@ void sys_phys_simulate(entity this, float dt)
                        }
                        if (PHYS_AIRSTRAFEACCEL_QW(this)) {
                                airaccelqw =
-                                   (((strafity > 0.5 ? PHYS_AIRSTRAFEACCEL_QW(this) : PHYS_AIRACCEL_QW(this)) >= 0) ? +1 : -1)
-                                   *
-                                   (1 - GeomLerp(1 - fabs(PHYS_AIRACCEL_QW(this)), strafity, 1 - fabs(PHYS_AIRSTRAFEACCEL_QW(this))));
+                                       (((strafity > 0.5 ? PHYS_AIRSTRAFEACCEL_QW(this) : PHYS_AIRACCEL_QW(this)) >= 0) ? +1 : -1)
+                                       *
+                                       (1 - GeomLerp(1 - fabs(PHYS_AIRACCEL_QW(this)), strafity, 1 - fabs(PHYS_AIRSTRAFEACCEL_QW(this))));
                        }
                        // !CPM
 
@@ -331,7 +342,7 @@ void sys_phys_simulate(entity this, float dt)
                                }
 
                                // holding jump button swims upward slowly
-                               if (this.com_in_jump && !this.viewloc) {
+                               if (this.com_in_jump && !this.viewloc && !PHYS_FROZEN(this)) {
                                        // was:
                                        // lava: 50
                                        // slime: 80
@@ -362,12 +373,12 @@ void sys_phys_simulate(entity this, float dt)
                                // TODO: apply edge friction
                                // apply ground friction
                                const int realfriction = (IS_ONSLICK(this))
-                                   ? PHYS_FRICTION_SLICK(this)
+                                       ? PHYS_FRICTION_SLICK(this)
                                        : PHYS_FRICTION(this);
 
                                float f = sqrt(f2);
                                f = 1 - dt * realfriction
-                                   * ((f < PHYS_STOPSPEED(this)) ? (PHYS_STOPSPEED(this) / f) : 1);
+                                       * ((f < PHYS_STOPSPEED(this)) ? (PHYS_STOPSPEED(this) / f) : 1);
                                f = max(0, f);
                                this.velocity *= f;
                                /*
@@ -417,7 +428,6 @@ void sys_phys_simulate_simple(entity this, float dt)
        vector g = '0 0 0';
        if (this.com_phys_gravity_factor && !g) g = '0 0 -1' * PHYS_GRAVITY(NULL);
 
-       vector acc = this.com_phys_acc;
        vector vel = this.com_phys_vel;
        vector pos = this.com_phys_pos;
 
@@ -427,7 +437,7 @@ void sys_phys_simulate_simple(entity this, float dt)
 
        this.angles += dt * this.avelocity;
        float movetime = dt;
-       for (int i = 0; i < MAX_CLIP_PLANES && movetime > 0; i++) {
+       for (int i = 0; i < MAX_CLIP_PLANES && movetime > 0; ++i) {
                vector push = vel * movetime;
                vector p0 = pos;
                vector p1 = p0 + push;
@@ -490,7 +500,6 @@ void sys_phys_simulate_simple(entity this, float dt)
                ClipVelocity(vel, trace_plane_normal, vel, 1);
        }
 
-       this.com_phys_acc = acc;
        this.com_phys_vel = vel;
        this.com_phys_pos = pos;
        setorigin(this, this.com_phys_pos);