///
//Translates the RenderingManager's camera according to keyboard input
//
//Parameters:
// GO: The game object this state is attached to
// state: the First Person Camera State updating the gameObject
void State_FirstPersonCamera_Translate(GObject* GO, State* state)
{
Camera* cam = RenderingManager_GetRenderingBuffer().camera;
if(InputManager_GetInputBuffer().mouseLock)
{
Vector netMvmtVec;
Vector partialMvmtVec;
Vector_INIT_ON_STACK(netMvmtVec, 3);
Vector_INIT_ON_STACK(partialMvmtVec, 3);
if (InputManager_IsKeyDown('w'))
{
//Get "back" Vector
Matrix_SliceRow(&partialMvmtVec, cam->rotationMatrix, 2, 0, 3);
//Subtract "back" Vector from netMvmtVec
Vector_Decrement(&netMvmtVec, &partialMvmtVec);
//Or in one step but less pretty... Faster though. I think I want readable here for now though.
//Vector_DecrementArray(netMvmtVec.components, Matrix_Index(cam->rotationMatrix, 2, 0), 3);
}
if (InputManager_IsKeyDown('s'))
{
//Get "back" Vector
Matrix_SliceRow(&partialMvmtVec, cam->rotationMatrix, 2, 0, 3);
//Add "back" Vector to netMvmtVec
Vector_Increment(&netMvmtVec, &partialMvmtVec);
}
if (InputManager_IsKeyDown('a'))
{
//Get "Right" Vector
Matrix_SliceRow(&partialMvmtVec, cam->rotationMatrix, 0, 0, 3);
//Subtract "Right" Vector From netMvmtVec
Vector_Decrement(&netMvmtVec, &partialMvmtVec);
}
if (InputManager_IsKeyDown('d'))
{
//Get "Right" Vector
Matrix_SliceRow(&partialMvmtVec, cam->rotationMatrix, 0, 0, 3);
//Add "Right" Vector to netMvmtVec
Vector_Increment(&netMvmtVec, &partialMvmtVec);
}
float dt = TimeManager_GetDeltaSec();
if (Vector_GetMag(&netMvmtVec) > 0.0f && dt > 0.0f)
{
Vector_Normalize(&netMvmtVec);
Vector_Scale(&netMvmtVec, state->members->movementSpeed * dt);
Camera_Translate(cam, &netMvmtVec);
}
}
}
///
//Updates the RenderManager's camera according to user input
//Moves, Rotates, and Skews the camera
//
//Parameters:
// GO: The game object this state is attached to
// state: The First person camera state updating the gameObject
void State_FirstPersonCamera_Update(GObject* GO, State* state)
{
//printf("\nUpdating Cam\n");
State_FirstPersonCamera_Rotate(GO, state);
State_FirstPersonCamera_Translate(GO, state);
State_FirstPersonCamera_Skew(GO, state);
//Experimental feature
if(InputManager_IsKeyDown('o'))
{
//Get Camera
Camera* cam = RenderingManager_GetRenderingBuffer().camera;
//Get the physics buffer
PhysicsBuffer* buffer = PhysicsManager_GetPhysicsBuffer();
//Get the global gravity force
//Vector* gravity = (Vector*)buffer->globalForces->head->data;
//Get z axis from camera
//Vector zAxis;
//Vector_INIT_ON_STACK(zAxis, 3);
//Matrix_SliceRow(&zAxis, cam->rotationMatrix, 2, 0, 3);
//Vector_Scale(&zAxis, -1.0f);
//Vector_Copy(gravity, &zAxis);
}
}
///
//Skews the rendering manager's camera according to keyboard input
//
//Parameters:
// GO: The game object this state is attached to
// state: The First person camera state updating the gameObject
void State_FirstPersonCamera_Skew(GObject* GO, State* state)
{
//TODO: Write Skew code here
Camera* cam = RenderingManager_GetRenderingBuffer().camera;
if(InputManager_IsKeyDown('='))
{
cam->nearPlane *= 1.001f;
printf("Near Plane: %f\n", cam->nearPlane);
Camera_RefreshPerspectiveMatrix(cam);
}
if(InputManager_IsKeyDown('-'))
{
cam->nearPlane *= 0.999f;
printf("Far Plane: %f\n", cam->nearPlane);
Camera_RefreshPerspectiveMatrix(cam);
}
}
///
//Updates a GObject using a Template state
//
//Parameters:
// obj: A pointer to the GObject being updated
// state: A pointer to the state updating the GObject
void State_ParkourController_Update(GObject* obj, State* state)
{
//Get a reference to the state members
struct State_ParkourController_Members* members = (struct State_ParkourController_Members*)state->members;
//If it needs to be updated, update the shoot timer
if(members->shootTimer < members->shootCooldown)
{
float dt = TimeManager_GetDeltaSec();
members->shootTimer += dt;
}
//If the left mouse button is down, shoot
if(InputManager_IsMouseButtonPressed(0))
{
State_ParkourController_Shoot(obj, state);
}
//Get a reference to the camera
Camera* cam = RenderingManager_GetRenderingBuffer()->camera;
//Determine if the object is colliding with anything
if(obj->collider->currentCollisions->size > 0)
{
//Determine if the object is on the ground
if(State_ParkourController_IsOnGround(obj))
{
//Allow the object to accelerate
State_ParkourController_Accelerate(obj, state);
if(InputManager_IsKeyDown(' '))
{
State_ParkourController_Jump(obj, state);
}
}
//If the spacebar is being pressed even if the object is not on the floor
if(InputManager_IsKeyDown(' '))
{
//Attempt to wallrun!
State_ParkourController_Wallrun(obj, state);
}
else if(members->verticalRunning || members->horizontalRunning)
{
//Wall jump!
State_ParkourController_WallJump(obj, state);
//If vertically wallrunning, start spinning right round baby right round!
if(members->verticalRunning) members->spinningTimer = 0.0f;
//The object was wallrunning but now (s)he stopped before the wall ended
members->verticalRunning = members->horizontalRunning = 0;
}
}
else if(members->verticalRunning || members->horizontalRunning)
{
if(members->verticalRunning)
{
State_ParkourController_WallVault(obj, state);
}
//The character was wallrunning but now there is no wall
members->verticalRunning = members->horizontalRunning = 0;
}
//If the parkour controller currently spinning off a wall, let it continue, else let the player rotate the controller
if(members->spinningTimer < members->spinningTime)
{
float dt = TimeManager_GetDeltaSec();
members->spinningTimer += dt;
Camera_ChangeYaw(cam, spinningRate * dt);
}
else
{
//Allow the user to rotate the parkour controller
State_ParkourController_Rotate(state);
}
//Set the position of the camera to match the object
Camera_SetPosition(cam, obj->frameOfReference->position);
}
///
//Accelerates a gameobject to the degree defined by the state
//
//PArameters:
// obj: The gameobject to accelerate
// state: The ParkourController state attached to the game object
static void State_ParkourController_Accelerate(GObject* obj, State* state)
{
//Grab the state members
struct State_ParkourController_Members* members = (struct State_ParkourController_Members*)state->members;
//Grab the camera
Camera* cam = RenderingManager_GetRenderingBuffer()->camera;
//Determine the direction of acceleration
Vector netForce;
Vector_INIT_ON_STACK(netForce, 3);
Vector direction;
Vector_INIT_ON_STACK(direction, 3);
if(InputManager_IsKeyDown('w'))
{
//Get forward vector of camera
Matrix_SliceRow(&direction, cam->rotationMatrix, 2, 0, 3);
//Project onto XY Plane
Vector perp;
Vector_INIT_ON_STACK(perp, 3);
Vector_GetProjection(&perp, &direction, &Vector_E2);
Vector_Decrement(&direction, &perp);
//Add vector to netForce
//Since this is the cameras "forward vector" we must add the negative of it.
//BEcause forward is the negative Z axis
Vector_Decrement(&netForce, &direction);
}
if(InputManager_IsKeyDown('s'))
{
//Get back vector of camera
//Get forward vector of camera
Matrix_SliceRow(&direction, cam->rotationMatrix, 2, 0, 3);
//Project onto XY Plane
Vector perp;
Vector_INIT_ON_STACK(perp, 3);
Vector_GetProjection(&perp, &direction, &Vector_E2);
Vector_Decrement(&direction, &perp);
//Add vector to netForce
//Since this is the cameras "forward vector" we must add the negative of it.
//BEcause forward is the negative Z axis
Vector_Increment(&netForce, &direction);
}
if(InputManager_IsKeyDown('d'))
{
//Get forward vector of camera
Matrix_SliceRow(&direction, cam->rotationMatrix, 0, 0, 3);
//Project onto XY Plane
Vector perp;
Vector_INIT_ON_STACK(perp, 3);
Vector_GetProjection(&perp, &direction, &Vector_E2);
Vector_Decrement(&direction, &perp);
//Add vector to netForce
//Since this is the cameras "forward vector" we must add the negative of it.
//BEcause forward is the negative Z axis
Vector_Increment(&netForce, &direction);
}
if(InputManager_IsKeyDown('a'))
{
//Get forward vector of camera
Matrix_SliceRow(&direction, cam->rotationMatrix, 0, 0, 3);
//Project onto XY Plane
Vector perp;
Vector_INIT_ON_STACK(perp, 3);
Vector_GetProjection(&perp, &direction, &Vector_E2);
Vector_Decrement(&direction, &perp);
//Add vector to netForce
//Since this is the cameras "forward vector" we must add the negative of it.
//BEcause forward is the negative Z axis
Vector_Decrement(&netForce, &direction);
}
//Scale netforce to the acceleration magnitude
Vector_Normalize(&netForce);
Vector_Scale(&netForce, members->acceleration);
//Only apply impulse if velocity is less than max speed
if(Vector_GetMag(obj->body->velocity) < members->maxVelocity)
{
//Apply the impulse
RigidBody_ApplyForce(obj->body, &netForce, &Vector_ZERO);
}
else
{
//Limit velocity
Vector_Normalize(obj->body->velocity);
Vector_Scale(obj->body->velocity, members->maxVelocity);
}
}
// translate the character and his bounding box.
// Parameters:
// GO: The game object this state is attached to (Used for translating the bounding box)
// state: The first person camera state updating the gameObject
void State_CharacterController_Translate(GObject* GO, State* state)
{
Camera* cam = RenderingManager_GetRenderingBuffer()->camera;
//Get members
struct State_CharacterController_Members* members = (struct State_CharacterController_Members*)state->members;
if(InputManager_GetInputBuffer().mouseLock)
{
// Gets the time per second
float dt = TimeManager_GetDeltaSec();
Vector netMvmtVec;
Vector partialMvmtVec;
Vector_INIT_ON_STACK(netMvmtVec, 3);
Vector_INIT_ON_STACK(partialMvmtVec, 3);
if (InputManager_IsKeyDown('w'))
{
//Get "back" Vector
Matrix_SliceRow(&partialMvmtVec, cam->rotationMatrix, 2, 0, 3);
//Subtract "back" Vector from netMvmtVec
Vector_Decrement(&netMvmtVec, &partialMvmtVec);
//Or in one step but less pretty... Faster though. I think I want readable here for now though.
//Vector_DecrementArray(netMvmtVec.components, Matrix_Index(cam->rotationMatrix, 2, 0), 3);
}
if (InputManager_IsKeyDown('s'))
{
//Get "back" Vector
Matrix_SliceRow(&partialMvmtVec, cam->rotationMatrix, 2, 0, 3);
//Add "back" Vector to netMvmtVec
Vector_Increment(&netMvmtVec, &partialMvmtVec);
}
if (InputManager_IsKeyDown('a'))
{
//Get "Right" Vector
Matrix_SliceRow(&partialMvmtVec, cam->rotationMatrix, 0, 0, 3);
//Subtract "Right" Vector From netMvmtVec
Vector_Decrement(&netMvmtVec, &partialMvmtVec);
}
if (InputManager_IsKeyDown('d'))
{
//Get "Right" Vector
Matrix_SliceRow(&partialMvmtVec, cam->rotationMatrix, 0, 0, 3);
//Add "Right" Vector to netMvmtVec
Vector_Increment(&netMvmtVec, &partialMvmtVec);
}
if (Vector_GetMag(&netMvmtVec) > 0.0f)
{
// Get the projection and keep player grounded
Vector perpMvmtVec;
Vector_INIT_ON_STACK(perpMvmtVec, 3);
Vector_GetProjection(&perpMvmtVec, &netMvmtVec, &Vector_E2);
Vector_Decrement(&netMvmtVec, &perpMvmtVec);
// Normalize vector and scale
Vector_Normalize(&netMvmtVec);
Vector_Scale(&netMvmtVec, members->movementSpeed);
//Apply Impulse
RigidBody_ApplyImpulse(GO->body, &netMvmtVec, &Vector_ZERO);
}
}
// If vector is going too fast, the maxspeed will keep it from going faster, by scaling it by maxspeed.
if(Vector_GetMag(GO->body->velocity) >= members->maxSpeed)
{
Vector_Normalize(GO->body->velocity);
Vector_Scale(GO->body->velocity,members->maxSpeed);
}
// Set position of Camera to the body
Camera_SetPosition(cam,GO->body->frame->position);
}
