From cf64054390970f3cf974afb2b174340a3e1da382 Mon Sep 17 00:00:00 2001 From: sfan5 Date: Tue, 16 Jul 2019 14:00:42 +0200 Subject: Implement adding velocity to player from Lua The intended usecase is knockback, but there's potential for more. --- src/content_sao.cpp | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'src/content_sao.cpp') diff --git a/src/content_sao.cpp b/src/content_sao.cpp index 0f1e2f435..de300481f 100644 --- a/src/content_sao.cpp +++ b/src/content_sao.cpp @@ -1091,6 +1091,7 @@ void PlayerSAO::step(float dtime, bool send_recommended) m_time_from_last_teleport += dtime; m_time_from_last_punch += dtime; m_nocheat_dig_time += dtime; + m_max_speed_override_time = MYMAX(m_max_speed_override_time - dtime, 0.0f); // Each frame, parent position is copied if the object is attached, // otherwise it's calculated normally. @@ -1412,6 +1413,19 @@ std::string PlayerSAO::getPropertyPacket() return gob_cmd_set_properties(m_prop); } +void PlayerSAO::setMaxSpeedOverride(const v3f &vel) +{ + if (m_max_speed_override_time == 0.0f) + m_max_speed_override = vel; + else + m_max_speed_override += vel; + if (m_player) { + float accel = MYMIN(m_player->movement_acceleration_default, + m_player->movement_acceleration_air); + m_max_speed_override_time = m_max_speed_override.getLength() / accel / BS; + } +} + bool PlayerSAO::checkMovementCheat() { if (isAttached() || m_is_singleplayer || @@ -1431,6 +1445,14 @@ bool PlayerSAO::checkMovementCheat() too, and much more lightweight. */ + float override_max_H, override_max_V; + if (m_max_speed_override_time > 0.0f) { + override_max_H = MYMAX(fabs(m_max_speed_override.X), fabs(m_max_speed_override.Z)); + override_max_V = fabs(m_max_speed_override.Y); + } else { + override_max_H = override_max_V = 0.0f; + } + float player_max_walk = 0; // horizontal movement float player_max_jump = 0; // vertical upwards movement @@ -1439,10 +1461,13 @@ bool PlayerSAO::checkMovementCheat() else player_max_walk = m_player->movement_speed_walk; // Normal speed player_max_walk *= m_physics_override_speed; + player_max_walk = MYMAX(player_max_walk, override_max_H); + player_max_jump = m_player->movement_speed_jump * m_physics_override_jump; // FIXME: Bouncy nodes cause practically unbound increase in Y speed, // until this can be verified correctly, tolerate higher jumping speeds player_max_jump *= 2.0; + player_max_jump = MYMAX(player_max_jump, override_max_V); // Don't divide by zero! if (player_max_walk < 0.0001f) -- cgit v1.2.3