Here's the code I'm trying to learn from.
#include "DarkGDK.h"
#include "FulcrumPhy.h"
//////////////
bool walk=false;
bool vehicle=false;
bool menu_on=false;
////////////////////////////////////
void controlCharacter(int objectID, float turnSpeed, float walkSpeed, float gravity);
void updateAnimation(int objectID, int firstFrame, int lastFrame);
void updateCamera(int objectID, float distance, float height, float smooth);
void floatingCam(int objectID, float speed, float height);
void load_car(void);
void driving(void);
void setupCar(void);
void resetCar(void);
void applyForces(void);
/////////////////////////
void user_input(void);
void showinfo(void);
/////////////////////////
int levelID = 10;
int carID = 2;
/////////////////////////////////
FulcrumPhy myPhysics;
void load_walk()
{
dbLoadObject("Media//Babe//H-Babe-Move.x", 1);
dbLoadObject("Media//TestLevel//TestMap.dbo", 2);
dbScaleObject(2, 10, 10, 10);
myPhysics.makeTriangleMeshFromDBO(2);
// Here, I will show how to make both types of controllers, for each type there are
// two overloads for the respective 'make' functon, one tries to set up your character
// size and offset along the y-axis automatically while the other gives you a little
// more control. The box controller below uses the first way while the capsule controller
// uses the second.
myPhysics.makeControllerCapsule(1, 0.1, 45, dbObjectSizeX(1), dbObjectSizeY(1));
//myPhysics.makeControllerBox(1, 0.2, 45, true);
myPhysics.positionCharacterController(1, 0, 5, 0);
myPhysics.setControllerLocalPositionY(1, -1.05); //Not needed for box controller here
myPhysics.simulate();
walk=true;
vehicle=false;
}
void walking()
{
myPhysics.getPhysicsResults();
controlCharacter(1, 1.0f, 0.1f, -0.3f);
updateAnimation(1, 4, 26);
myPhysics.update();
updateCamera(1, 4, 2, 10);
myPhysics.simulate();
dbSync ( );
}
void DarkGDK ( void )
{
myPhysics.start(true);
dbSyncOn ( );
dbSyncRate ( 60 );
dbRandomize ( dbTimer ( ) );
load_walk();
//setupCar();
while ( LoopGDK ( ) )
{
while (walk==true)
{
walking();
user_input();
showinfo();
}
while (vehicle==true)
{
driving();
user_input();
showinfo();
}
}
myPhysics.stop();
return;
}
void controlCharacter(int id, float turnSpeed, float walkSpeed, float gravity)
{
if(dbLeftKey())
dbRotateObject(id, 0, dbObjectAngleY(id) - turnSpeed, 0);
if(dbRightKey())
dbRotateObject(id, 0, dbObjectAngleY(id) + turnSpeed, 0);
if(dbUpKey())
walkSpeed = -walkSpeed;
else if(dbDownKey())
walkSpeed = walkSpeed;
else
walkSpeed = 0.0f;
myPhysics.moveCharacterController(id, walkSpeed, gravity);
}
void updateCamera(int id, float distance, float height, float smooth)
{
dbSetCameraToFollow(dbObjectPositionX(id), //PositionX
dbObjectPositionY(id), //PositionY
dbObjectPositionZ(id), //PositionZ
dbObjectAngleY(id) + 180, //Angle
distance, //Distance
height, //Height
smooth, //Smooth
0); //Collision
dbRotateCamera(0, dbObjectAngleY(id) + 180, 0);
}
void updateAnimation(int id, int firstFrame, int lastFrame)
{
if(dbUpKey())
dbSetObjectFrame(id, dbObjectFrame(id) + 1);
if(dbDownKey())
dbSetObjectFrame(id, dbObjectFrame(id) - 1);
if(dbObjectFrame(id) > lastFrame)
dbSetObjectFrame(id, firstFrame);
if(dbObjectFrame(id) < firstFrame)
dbSetObjectFrame(id, lastFrame);
}
///////////////////////////////vehicle in jos
void load_car()
{
myPhysics.start(true);
myPhysics.setGravity(0, -9.8, 0);
dbLoadObject("Media/TestLevel/TestMap.dbo", levelID);
dbScaleObject(levelID, 15, 15, 15);
myPhysics.makeTriangleMeshFromDBO(levelID);
setupCar();
myPhysics.simulate();
vehicle=true;
walk=false;
}
void driving()
{
myPhysics.getPhysicsResults();
if(dbSpaceKey()) resetCar();
dbText(0, 0, "Use arrow keys to control vehicle, space key to reset");
dbText(0, 15, "FPS: ");
dbText(100, 15, dbStr(dbScreenFPS()));
dbText(0, 30, "Polys: ");
dbText(100, 30, dbStr(dbStatistic(1)));
// Apply power to, and turn the wheels
applyForces();
myPhysics.update();
floatingCam(carID, 0.01f, 5.0f);
myPhysics.simulate();
dbSync ( );
}
void setupCar()
{
// Load car model
dbLoadObject("Media/F1 Car/H-F1 Car-Move.x", carID);
// Creating the car hull shape(s) works just like making a compound actor, we need the car
// object at position (0, 0, 0) for this to work. What we do is make primitive objects(boxes,
// spheres etc). We then size, rotate and position them so they are a good representation of the
// car object.
//BOX
dbMakeObjectBox(100, dbObjectSizeX(carID), dbObjectSizeY(carID) - 0.2, dbObjectSizeZ(carID) / 3);
dbPositionObject(100, 0, dbObjectSizeY(carID) / 2, 2);
dbHideObject(100);
//BOX
dbMakeObjectBox(102, dbObjectSizeX(carID), dbObjectSizeY(carID)/ 4, dbObjectSizeZ(carID) / 8);
dbPositionObject(102, 0, dbObjectSizeY(carID) / 2 - 0.5, -2.2);
dbHideObject(102);
//SPHERE(scaled)
dbMakeObjectSphere(101, dbObjectSizeX(carID), 10, 10);
dbScaleObject(101, 100, 40, 250);
dbPositionObject(101, 00, dbObjectSizeY(carID) / 2, 0);
dbHideObject(101);
// Now we have a good representation of the car for the physics simulation. The more shapes we
// create, the more realistic the car will act at the cost of cpu.
// The next three commands will create the shapes and add them to the shape list.
myPhysics.makeConvexShape(101); //hull
myPhysics.makeBoxShape(100); //
myPhysics.makeBoxShape(102); //
// We now initialise our vehicle, this will grab(and delete) our shapes from the shape
// list and create our vehicle, all we need do next is add some wheels.
myPhysics.makeVehicle(carID);
// First you need to find what the limb number is for each wheel, there are many ways of
// doing this, you could create a function that hides all the limbs and then just
// shows one at a time with the limb ID number displayed. You can use commands:
// dbHideLimb(), dbShowLimb().
// Once we know the limb ID's we give each wheel an ID in relation to that vehicle,
// this is the ID number we us to access the wheels later.
float radius = 0.5;
myPhysics.makeWheelShape(carID, 2, 1, radius);
myPhysics.makeWheelShape(carID, 3, 2, radius);
myPhysics.makeWheelShape(carID, 4, 3, radius);
myPhysics.makeWheelShape(carID, 6, 4, radius);
// Now we have added some wheels we make our vehicle.
myPhysics.buildVehicle(carID);
// ADVANCED SETTINGS
// Setting up the vehicle is just the start, there are an almost unlimited amount of
// ways to get your vehicle to handle the way you would like. I will show some of
// the methods for making your vehicle more stable.
// We make a material for the wheels, we dont want much bounciness, but we do
// want lots of grip(friction).
myPhysics.makeMaterial(1, 0.01f, 1.0f, 1.0f);
// We set each wheel to the above material
myPhysics.setMaterial(carID, 1, 1);
myPhysics.setMaterial(carID, 2, 1);
myPhysics.setMaterial(carID, 3, 1);
myPhysics.setMaterial(carID, 4, 1);
// Linear damping will simulate air resistance
myPhysics.setLinearDamping(carID, 0.1);
// Since we have a large shape at the back, the center of mass for the actor/object
// as a whole will be higher up and further back than we want it, making the car tip
// over very easily. Changing(lowering) the centre of mass is the easiest way to stop
// your vehicle from tipping over. If you lower it enough it will not tip over at all
// but you may get strange results in certain situations, its a good idea to try to
// keep the centre of mass within the frame of the vehicle.
myPhysics.setCMassLocalPosition(carID, 0.0f, 0.0f, 0.0f);
}
void applyForces()
{
// Declare some variables
static float wheelAngle = 0;
static float maxAngle = 30;
static float wheelReturnSpeed = 1.5;
static float wheelTorque = 0;
static float power = 550;
static float downForce = -1000;
// Limit wheel angle
if (wheelAngle > maxAngle)
wheelAngle = maxAngle;
if (wheelAngle < -maxAngle)
wheelAngle = -maxAngle;
// KEYS
// Power
if (dbUpKey())
wheelTorque = -power;
else if (dbDownKey())
wheelTorque = power;
else wheelTorque = 0;
// Turn
if (dbLeftKey())
wheelAngle -= 1.5;
else if (dbRightKey())
wheelAngle += 1.5;
else if (wheelAngle > 0)
wheelAngle -= wheelReturnSpeed;
else if (wheelAngle < 0)
wheelAngle += wheelReturnSpeed;
// We shall turn the front wheels only and add power to the rear wheels only.
myPhysics.driveWheel(carID, 1, wheelTorque);
myPhysics.driveWheel(carID, 2, wheelTorque);
myPhysics.steerWheel(carID, 3, wheelAngle);
myPhysics.steerWheel(carID, 4, wheelAngle);
// DownForce
// Adding downforce is a good way to increase vehicle grip, in a more realistic
// simulation you might want to increase downforce in relation to the velocity
// of the vehicle.
myPhysics.applyForce(carID, 0, downForce, 0);
}
void resetCar()
{
myPhysics.setPosition(carID, 0, 0, 0);
myPhysics.setOrientation(carID, 0, 0, 0);
myPhysics.setLinearVelocity(carID, 0, 0, 0);
myPhysics.setAngularVelocity(carID, 0, 0, 0);
}
void floatingCam(int objectID, float speed, float height)
{
float distance = dbSqrt(
((dbObjectPositionX(objectID) - dbCameraPositionX())
*
(dbObjectPositionX(objectID) - dbCameraPositionX()))
+
((dbObjectPositionZ(objectID) - dbCameraPositionZ())
*
(dbObjectPositionZ(objectID) - dbCameraPositionZ())));
dbPointCamera(dbObjectPositionX(objectID), dbObjectPositionY(objectID), dbObjectPositionZ(objectID));
dbMoveCamera(speed * (distance * 1.5));
dbPositionCamera(dbCameraPositionX(), dbObjectPositionY(objectID) + height, dbCameraPositionZ());
}
///////////////////////////
void user_input()
{
if (menu_on==false && walk==true&&dbControlKey())//&&dist<=100
load_car();
if (menu_on==false && vehicle==true&&dbControlKey())//&dist<=100
load_walk();
}
void showinfo(void)
{
char szX[ 256 ] = "";
strcpy ( szX, "x = " );
//strcat ( szX, dbStr ( dbCameraPositionX() ) );
strcat ( szX, dbStr ( dbObjectPositionX(1) ) );
dbText (0, 28 , szX );
char szY[ 256 ] = "";
strcpy ( szY, "y = " );
//strcat ( szY, dbStr ( dbCameraPositionY() ) );
strcat ( szY, dbStr ( dbObjectPositionY(1) ) );
dbText (0, 42 , szY );
char szZ[ 256 ] = "";
strcpy ( szZ, "z = " );
//strcat ( szZ, dbStr ( dbCameraPositionZ() ) );
strcat ( szZ, dbStr ( dbObjectPositionZ(1) ) );
dbText (0, 56 , szZ );
}
How can I make my car be already spawned in the level if I put setupCar(); before the loop it crashes, there's no floor and the car is floating, but the switching with the control key works fine.
How can I make the car spawn at a certain location? If I put other values the game crashes.
Forward thanks!
