roll control

1 files changed, 36 insertions, 17 deletions

diff --git a/src/game/ship.cc b/src/game/ship.cc
index 538a1e6..af98513 100644
--- a/src/game/ship.cc
+++ b/src/game/ship.cc
@@ -25,6 +25,10 @@ Ship::Ship(core::Player *owner, ShipModel *shipmodel) :
 	ship_shipmodel = shipmodel;
 
 	entity_moduletypeid = ship_enttype;
+
+	current_target_direction = 0.0f;
+	current_target_pitch = 0.0f;;
+	current_target_roll = 0.0f;;
 }
 
 Ship::~Ship() 
@@ -35,33 +39,48 @@ Ship::~Ship()
 
 void Ship::frame(float seconds) 
 {
+	const float direction_change_speed = 2;
+
 	// update thrust
+	math::clamp(target_thrust, 0.0f, 1.0f);
 	entity_thrust = target_thrust;
-	if (entity_thrust < 0.0f)
-		entity_thrust = 0.0f;
-	else if(entity_thrust > 1.0f)
-		entity_thrust = 1.0f;
-
+	
 	// update pitch
-	if (target_pitch > 1.0f)
-		target_pitch = 1.0f;
-	else if (target_pitch < -1.0f)
-		target_pitch = -1.0f;
-
-	float pitch_offset =  seconds * target_pitch;
+	math::clamp(target_pitch, -1.0f, 1.0f);
+	if (current_target_pitch < target_pitch) {
+		current_target_pitch += direction_change_speed * seconds;
+	} else if (current_target_pitch > target_pitch) {
+		current_target_pitch -= direction_change_speed * seconds;
+	}
+	math::clamp(current_target_pitch, -1.0f, 1.0f);
+	float pitch_offset =  seconds * current_target_pitch;
 	if (pitch_offset)
 		entity_axis.change_pitch(360.0f * ship_shipmodel->turnspeed() * pitch_offset);
 
 	// update direction
-	if (target_direction > 1.0f)
-		target_direction = 1.0f;
-	else if (target_direction < -1.0f)
-		target_direction = -1.0f;
-
-	float direction_offset = seconds * target_direction;
+	math::clamp(target_direction, -1.0f, 1.0f);
+	if (current_target_direction < target_direction) {
+		current_target_direction += direction_change_speed * seconds;
+	} else if (current_target_direction > target_direction) {
+		current_target_direction -= direction_change_speed * seconds;
+	}
+	math::clamp(current_target_direction, -1.0f, 1.0f);
+	float direction_offset = seconds * current_target_direction;
 	if (direction_offset)
 		entity_axis.change_direction(360.0f * ship_shipmodel->turnspeed() * direction_offset);
 
+	// update roll
+	math::clamp(target_roll, -1.0f, 1.0f);
+	if (current_target_roll < target_roll) {
+		current_target_roll += direction_change_speed * seconds;
+	} else if (current_target_roll > target_roll) {
+		current_target_roll -= direction_change_speed * seconds;
+	}
+	math::clamp(current_target_roll, -1.0f, 1.0f);
+	float roll_offset = seconds * current_target_roll;
+	if (roll_offset)
+		entity_axis.change_roll(360.0f * ship_shipmodel->turnspeed() * roll_offset);
+
 	// update speed
 	if (entity_speed < entity_thrust * ship_shipmodel->maxspeed()) {
 		entity_speed += ship_shipmodel->acceleration() * seconds;