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Better vehicle handling

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This commit is contained in:
tovjemam 2026-04-12 15:38:14 +02:00
parent b92ce2668a
commit 26689b77a5
1 changed files with 17 additions and 14 deletions
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31
src/game/vehicle.cpp
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@ -20,7 +20,7 @@ game::Vehicle::Vehicle(World& world, const VehicleTuning& tuning)
root_.local.position.z = 10.0f; root_.local.position.z = 10.0f;
// setup chassis rigidbody // setup chassis rigidbody
float mass = 1300.0f; float mass = 1000.0f;
btCollisionShape* shape = model_->GetModel()->GetColShape(); btCollisionShape* shape = model_->GetModel()->GetColShape();
if (!shape) if (!shape)
@ -46,7 +46,7 @@ game::Vehicle::Vehicle(World& world, const VehicleTuning& tuning)
btVector3 wheelDirectionCS0(0, 0, -1); btVector3 wheelDirectionCS0(0, 0, -1);
btVector3 wheelAxleCS(1, 0, 0); btVector3 wheelAxleCS(1, 0, 0);
wheel_z_offset_ = 0.5f; wheel_z_offset_ = 0.2f;
const auto& wheels = model_->GetWheels(); const auto& wheels = model_->GetWheels();
@ -59,20 +59,23 @@ game::Vehicle::Vehicle(World& world, const VehicleTuning& tuning)
{ {
float wheelRadius = wheeldef.radius; float wheelRadius = wheeldef.radius;
float friction = 3.0f; // 5.0f; float friction = 2.2f; // 5.0f;
float suspensionStiffness = 50.0f; float suspensionStiffness = 50.0f;
// float suspensionDamping = 2.3f; // float suspensionDamping = 2.3f;
// float suspensionCompression = 4.4f; // float suspensionCompression = 4.4f;
float suspensionRestLength = 0.6f; float suspensionRestLength = 0.3f;
float rollInfluence = 0.01f; float rollInfluence = 0.3f;
float maxSuspensionForce = 100000.0f; float maxSuspensionForce = 90000.0f;
float maxSuspensionTravelCm = 5000.0f; float maxSuspensionTravelCm = 15.0f;
float k = 0.2; float k = 0.2f;
const bool is_front = !(wheeldef.type & assets::WHEEL_REAR); const bool is_front = !(wheeldef.type & assets::WHEEL_REAR);
if (!is_front)
friction *= 1.5f;
btVector3 wheel_pos(wheeldef.position.x, wheeldef.position.y, wheeldef.position.z + wheel_z_offset_); btVector3 wheel_pos(wheeldef.position.x, wheeldef.position.y, wheeldef.position.z + wheel_z_offset_);
auto& wi = vehicle_->addWheel(wheel_pos, wheelDirectionCS0, wheelAxleCS, suspensionRestLength, wheelRadius, auto& wi = vehicle_->addWheel(wheel_pos, wheelDirectionCS0, wheelAxleCS, suspensionRestLength, wheelRadius,
bt_tuning, is_front); bt_tuning, is_front);
@ -240,8 +243,8 @@ void game::Vehicle::ProcessInput()
// float steeringIncrement = .04 * 60; // float steeringIncrement = .04 * 60;
// float steeringClamp = .5; // float steeringClamp = .5;
// float maxEngineForce = 7000; // float maxEngineForce = 7000;
float maxEngineForce = 4500; float maxEngineForce = 3200;
float maxBreakingForce = 300; float maxBreakingForce = 400;
float speed = vehicle_->getCurrentSpeedKmHour(); float speed = vehicle_->getCurrentSpeedKmHour();
if (glm::abs(speed) > 200.0f) if (glm::abs(speed) > 200.0f)
@ -338,11 +341,11 @@ void game::Vehicle::ProcessInput()
steering_ = -steeringClamp; steering_ = -steeringClamp;
} }
vehicle_->applyEngineForce(engineForce, 2); vehicle_->applyEngineForce(engineForce, 0);
vehicle_->applyEngineForce(engineForce, 3); vehicle_->applyEngineForce(engineForce, 1);
vehicle_->setBrake(breakingForce * 0.5, 0); vehicle_->setBrake(breakingForce * 0.1f, 0);
vehicle_->setBrake(breakingForce * 0.5, 1); vehicle_->setBrake(breakingForce * 0.1f, 1);
vehicle_->setBrake(breakingForce, 2); vehicle_->setBrake(breakingForce, 2);
vehicle_->setBrake(breakingForce, 3); vehicle_->setBrake(breakingForce, 3);