///
//Allows the parkour controller to vertically wallrun
//
//Parameters:
// obj: A pointer to the object attached to the parkourController state
// state: The parkourController state updating the object
static void State_ParkourController_VerticalWallrun(GObject* obj, State* state)
{
//Get the members of this state
struct State_ParkourController_Members* members = (struct State_ParkourController_Members*)state->members;
Vector impulse;
Vector_INIT_ON_STACK(impulse, 3);
impulse.components[1] = members->jumpMag;
RigidBody_ApplyImpulse(obj->body, &impulse, &Vector_ZERO);
//Cap max upward speed
if(obj->body->velocity->components[1] > members->maxVelocity)
{
obj->body->velocity->components[1] = members->maxVelocity;
}
if(obj->body->velocity->components[0] != 0.0f || obj->body->velocity->components[2])
{
Vector_Copy(&impulse, &Vector_ZERO);
impulse.components[0] -= obj->body->velocity->components[0];
impulse.components[2] -= obj->body->velocity->components[2];
RigidBody_ApplyImpulse(obj->body, &impulse, &Vector_ZERO);
}
}
///
//Lets the runner jump off of a wall
// obj: A pointer to the object
// state: A pointer to the runner controller state which is allowing the object to wall jump
void State_RunnerController_WallJump(GObject* obj, State* state)
{
//Get the members of this state
struct State_RunnerController_Members* members = (struct State_RunnerController_Members*)state->members;
Vector impulse;
Vector_INIT_ON_STACK(impulse, 3);
Vector_Copy(&impulse, members->wallNormal);
Vector_Scale(&impulse, members->jumpMag * 2);
RigidBody_ApplyImpulse(obj->body, &impulse, &Vector_ZERO);
Vector_Copy(&impulse, &Vector_E2);
Vector_Scale(&impulse, members->jumpMag);
RigidBody_ApplyImpulse(obj->body, &impulse, &Vector_ZERO);
}
///
//Allows the parkour controller to jump
//
//Parameters:
// obj: A pointer to the object attached to the ParkourController state
// state: The parkour state updating the object
static void State_ParkourController_Jump(GObject* obj, State* state)
{
struct State_ParkourController_Members* members = (struct State_ParkourController_Members*)state->members;
Vector jumpImpulse;
Vector_INIT_ON_STACK(jumpImpulse, 3);
jumpImpulse.components[1] = members->jumpMag;
RigidBody_ApplyImpulse(obj->body, &jumpImpulse, &Vector_E1);
}
///
//Lets the ParkourController vault over a wall
//
//Parameters:
// obj: A pointer to the object attached to the ParkourController state
// state:
void State_ParkourController_WallVault(GObject* obj, State* state)
{
//Get the members of this state
struct State_ParkourController_Members* members = (struct State_ParkourController_Members*)state->members;
Vector impulse;
Vector_INIT_ON_STACK(impulse, 3);
Vector_Copy(&impulse, members->wallNormal);
Vector_Scale(&impulse, -members->maxVelocity);
RigidBody_ApplyImpulse(obj->body, &impulse, &Vector_ZERO);
}
///
//Lets the runner vault off of a wall
// obj: A pointer to the object
// state: A pointer to the runner controller state which is allowing the object to wall vault
void State_RunnerController_WallVault(GObject* obj, State* state)
{
//Get the members of this state
struct State_RunnerController_Members* members = (struct State_RunnerController_Members*)state->members;
Vector impulse;
Vector_INIT_ON_STACK(impulse, 3);
Vector_Copy(&impulse, members->wallNormal);
float mag = obj->body->velocity->components[1];
Vector_Scale(&impulse, -mag * 1.0f);
RigidBody_ApplyImpulse(obj->body, &impulse, &Vector_ZERO);
Vector_Copy(&impulse, &Vector_E2);
obj->body->velocity->components[1] = 0;
Vector_Scale(&impulse, members->jumpMag);
RigidBody_ApplyImpulse(obj->body, &impulse, &Vector_ZERO);
}
///
//Allows the runner controller to jump if necessary conditions are met
//
//Parameters:
// obj: A pointer to the object jumping
// state: A pointer to the runner controller state which is jumping the object
void State_RunnerController_Jump(GObject* obj, State* state)
{
//If the object is allowed to jump
if(State_RunnerController_IsOnGround(obj, state))
{
//Grab the state members
struct State_RunnerController_Members* members = (struct State_RunnerController_Members*)state->members;
Vector jumpImpulse;
Vector_INIT_ON_STACK(jumpImpulse, 3);
jumpImpulse.components[1] = members->jumpMag;
RigidBody_ApplyImpulse(obj->body, &jumpImpulse, &Vector_ZERO);
}
}
///
//Allows the runner controller to wallrun if necessary conditions are met
//
//Parameters:
// obj: A pointer to the object which is running on walls
// state: A pointer to the runner controller state which is allowing the object to wallrun
void State_RunnerController_Wallrun(GObject* obj, State* state)
{
//Get the members of this state
struct State_RunnerController_Members* members = (struct State_RunnerController_Members*)state->members;
//Get the first collision this object is involved in
Collision* first = (Collision*)obj->collider->currentCollisions->head->data;
//If we are not wallrunning yet
if(members->horizontalRunning == 0 && members->verticalRunning == 0)
{
//Make sure this is a wall
if(first->minimumTranslationVector->components[0] != 0.0 || first->minimumTranslationVector->components[2] != 0.0f)
{
//Save the normal
Vector_Copy(members->wallNormal, first->minimumTranslationVector);
if(first->obj1 != obj)
{
Vector_Scale(members->wallNormal, -1.0f);
}
//Determine what kind of wallrun is occurring
//First get the forward vector of the camera
Camera* cam = RenderingManager_GetRenderingBuffer()->camera;
Vector forward;
Vector_INIT_ON_STACK(forward, 3);
Matrix_SliceRow(&forward, cam->rotationMatrix, 2, 0, 3);
//Project the forward vector onto the XY Plane
Vector perp;
Vector_INIT_ON_STACK(perp, 3);
Vector_GetProjection(&perp, &forward, &Vector_E2);
Vector_Decrement(&forward, &perp);
Vector_Normalize(&forward);
//Get dot product of forward vector and collision normal
float dotProd = fabs(Vector_DotProduct(&forward, first->minimumTranslationVector));
//If the dot product is closer to 0 we are horizontal running, else we are vertical running
if(dotProd < 0.75)
{
members->horizontalRunning = 1;
}
else
{
members->verticalRunning = 1;
}
}
}
//If we are horizontal running
if(members->horizontalRunning == 1)
{
printf("Horizontal Wallrunnin\n");
//combat the force of gravity
Vector antiGravity;
Vector_INIT_ON_STACK(antiGravity, 3);
antiGravity.components[1] = 9.81f;
RigidBody_ApplyForce(obj->body, &antiGravity, &Vector_ZERO);
//Zero downward velocity
if(obj->body->velocity->components[1] < 0.0f)
{
Vector_Copy(&antiGravity, &Vector_ZERO);
antiGravity.components[1] = -obj->body->velocity->components[1];
RigidBody_ApplyImpulse(obj->body, &antiGravity, &Vector_ZERO);
}
State_RunnerController_Accelerate(obj, state);
}
else if(members->verticalRunning == 1)
{
printf("Vertical Wallrunnin\n");
//combat the force of gravity
Vector antiGravity;
Vector_INIT_ON_STACK(antiGravity, 3);
Vector_Copy(&antiGravity, &Vector_E2);
//go up!
Vector_Scale(&antiGravity, 9.81);
RigidBody_ApplyForce(obj->body, &antiGravity, &Vector_ZERO);
//If we aren't jumping too fast yet
if(Vector_DotProduct(obj->body->velocity, &Vector_E2) < members->maxVelocity)
{
Vector_Copy(&antiGravity, &Vector_E2);
Vector_Scale(&antiGravity, members->acceleration);
RigidBody_ApplyForce(obj->body, &antiGravity, &Vector_ZERO);
}
}
}
void State_ParkourController_Shoot(GObject* obj, State* state)
{
//Get the members of the state
struct State_ParkourController_Members* members = (struct State_ParkourController_Members*)state->members;
//Get a reference to the camera
Camera* cam = RenderingManager_GetRenderingBuffer()->camera;
if(InputManager_GetInputBuffer().mouseLock)
{
//IF we can shoot again
if(members->shootTimer >= members->shootCooldown)
{
//Get the forward vector of the camera
Vector direction;
Vector_INIT_ON_STACK(direction, 3);
Matrix_SliceRow(&direction, cam->rotationMatrix, 2, 0, 3);
Vector_Scale(&direction, -1.0f);
//Create the bullet object
GObject* bullet = GObject_Allocate();
GObject_Initialize(bullet);
//Set the appearance
bullet->mesh = AssetManager_LookupMesh("Cube");
//bullet->texture = AssetManager_LookupTexture("White");
bullet->material = Material_Allocate();
Material_Initialize(bullet->material, AssetManager_LookupTexture("Jacob"));
//*Matrix_Index(bullet->material->colorMatrix, 1, 1) = 0.0f;
//*Matrix_Index(bullet->material->colorMatrix, 2, 2) = 0.0f;
//Create ridgid body
bullet->body = RigidBody_Allocate();
RigidBody_Initialize(bullet->body, bullet->frameOfReference, 1.0f);
bullet->body->coefficientOfRestitution = 0.2f;
bullet->body->rollingResistance = 0.2f;
bullet->body->staticFriction = 0.4f;
bullet->body->dynamicFriction = 0.2f;
//Create collider
bullet->collider = Collider_Allocate();
ConvexHullCollider_Initialize(bullet->collider);
ConvexHullCollider_MakeRectangularCollider(bullet->collider->data->convexHullData, 2.0f, 2.0f, 2.0f);
//Position bullet
Vector transform;
Vector_INIT_ON_STACK(transform, 3);
Vector_GetScalarProduct(&transform, &direction, 2.8243f);
Vector_Increment(&transform, obj->frameOfReference->position);
GObject_Translate(bullet, &transform);
Vector_Copy(&transform, &Vector_ZERO);
transform.components[2] = 1.0f;
GObject_Rotate(bullet, &transform, 3.14159f);
//Scale bullet
Vector_Copy(&transform, &Vector_ZERO);
transform.components[0] = transform.components[1] = transform.components[2] = 0.5f;
GObject_Scale(bullet, &transform);
//Apply impulse
Vector_Scale(&direction, 25.0f);
RigidBody_ApplyImpulse(bullet->body, &direction, &Vector_ZERO);
//Add the remove state
State* state = State_Allocate();
State_Remove_Initialize(state, 7.0f);
GObject_AddState(bullet, state);
//Add the bullet to the world
ObjectManager_AddObject(bullet);
//Set shoot timer to 0
members->shootTimer = 0.0f;
}
}
}
///
//Allows the parkour controller to horizontally wallrun
//
//Parameters:
// obj: A pointer to the object attached to the parkourController state
// state: The parkourController state updating the object
static void State_ParkourController_HorizontalWallrun(GObject* obj, State* state)
{
printf("Horizontal\n");
//Get the members of this state
struct State_ParkourController_Members* members = (struct State_ParkourController_Members*)state->members;
//Zero downward velocity
if(obj->body->velocity->components[1] < 0.0f)
{
Vector impulse;
Vector_INIT_ON_STACK(impulse, 3);
impulse.components[1] = -obj->body->velocity->components[1];
RigidBody_ApplyImpulse(obj->body, &impulse, &Vector_ZERO);
}
//Accelerate along wall
//Get the projection of the forward vector onto the wall's plane
//Start by getting for forward vector of the camera
Camera* cam = RenderingManager_GetRenderingBuffer()->camera;
Vector forward;
Vector_INIT_ON_STACK(forward, 3);
Matrix_SliceRow(&forward, cam->rotationMatrix, 2, 0, 3);
//Forward of camera is back of object...
Vector_Scale(&forward, -1.0f);
//Project the forward vector onto the wall plane
Vector perp;
Vector_INIT_ON_STACK(perp, 3);
Vector_GetProjection(&perp, &forward, members->wallNormal);
Vector_Decrement(&forward, &perp);
//Set the Y component to 0 to get horizontal vector along wall!
forward.components[1] = 0.0f;
Vector_Normalize(&forward);
//MAke sure the velocity in this direction is not too much
float magVelAlongWall = Vector_DotProduct(&forward, obj->body->velocity);
if(magVelAlongWall < members->maxVelocity)
{
RigidBody_ApplyImpulse(obj->body, &forward, &Vector_ZERO);
}
//Apply a cohesive force to the wall to make sure you do not fall off
float mag = Vector_DotProduct(obj->body->velocity, members->wallNormal);
Vector cohesive;
Vector_INIT_ON_STACK(cohesive, 3);
if(mag > FLT_EPSILON)
{
Vector_GetScalarProduct(&cohesive, members->wallNormal, -mag);
}
else if(mag < FLT_EPSILON)
{
Vector_GetScalarProduct(&cohesive, members->wallNormal, mag);
}
RigidBody_ApplyImpulse(obj->body, &cohesive, members->wallNormal);
}
// Create an object in front of the character and fire
// Parameters:
// GO: The object getting passed in, in this case the character
// State: Needed to grab members
void State_CharacterController_ShootBullet(GObject* GO, State* state)
{
//Get members
struct State_CharacterController_Members* members = (struct State_CharacterController_Members*)state->members;
// Camera local
Camera* cam = RenderingManager_GetRenderingBuffer()->camera;
// Gets the time per second
float dt = TimeManager_GetDeltaSec();
members->timer += dt;
if(InputManager_GetInputBuffer().mouseLock)
{
// Create a net movement vector
Vector direction;
Vector_INIT_ON_STACK(direction, 3);
if (InputManager_IsMouseButtonPressed(0) && members->timer >= members->coolDown)
{
//Get "forward" Vector
Matrix_SliceRow(&direction, cam->rotationMatrix, 2, 0, 3);
Vector_Scale(&direction,-1.0f);
// Create the bullet object
GObject* bullet = GObject_Allocate();
GObject_Initialize(bullet);
//bullet->mesh = AssetManager_LookupMesh("Sphere");
bullet->mesh = AssetManager_LookupMesh("Arrow");
bullet->texture = AssetManager_LookupTexture("Arrow");
bullet->body = RigidBody_Allocate();
RigidBody_Initialize(bullet->body, bullet->frameOfReference, 0.45f);
bullet->body->coefficientOfRestitution = 0.2f;
bullet->collider = Collider_Allocate();
ConvexHullCollider_Initialize(bullet->collider);
ConvexHullCollider_MakeRectangularCollider(bullet->collider->data->convexHullData, 0.1f, 2.0f, 0.1f);
//AABBCollider_Initialize(bullet->collider, 2.0f, 2.0f, 2.0f, &Vector_ZERO);
//Lay arrow flat
GObject_Rotate(bullet, &Vector_E1, -3.14159f / 2.0f);
//Construct a rotation matrix to orient bullet
Matrix rot;
Matrix_INIT_ON_STACK(rot, 3, 3);
//Grab 4,4 minor to get 3x3 rotation matrix of camera
Matrix_GetMinor(&rot, cam->rotationMatrix, 3, 3);
//Transpose it to get correct direction
Matrix_Transpose(&rot);
//Rotate the bullet
Matrix_TransformMatrix(&rot, bullet->frameOfReference->rotation);
Matrix_TransformMatrix(&rot, bullet->body->frame->rotation);
Vector vector;
Vector_INIT_ON_STACK(vector,3);
vector.components[0] = 0.9f;
vector.components[1] = 1.0f;
vector.components[2] = 0.9f;
GObject_Scale(bullet, &vector);
Vector translation;
Vector_INIT_ON_STACK(translation, 3);
Vector_GetScalarProduct(&translation, &direction, 2.82843);
GObject_Translate(bullet, GO->frameOfReference->position);
GObject_Translate(bullet, &translation);
Vector_Scale(&direction, 25.0f);
//Vector_Increment(bullet->body->velocity,&direction);
RigidBody_ApplyImpulse(bullet->body,&direction,&Vector_ZERO);
//Add remove state
State* state = State_Allocate();
State_Remove_Initialize(state, 5.0f);
GObject_AddState(bullet, state);
ObjectManager_AddObject(bullet);
members->timer = 0;
}
}
}
// 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);
}
