///
//Initializes a new force state
//
//Parameters:
// state: A pointer to the state to initialize as a force state
// force: A pointer to a vector to copy as the force this state will apply
// radius: A pointer to a vector to copy as the radius this state will apply the force at
void State_Force_Initialize(State* state, Vector* force, Vector* radius)
{
struct State_Force_Members* members = (struct State_Force_Members*)malloc(sizeof(struct State_Force_Members));
state->members = (State_Members)members;
members->force = Vector_Allocate();
Vector_Initialize(members->force, 3);
Vector_Copy(members->force, force);
members->radius = Vector_Allocate();
Vector_Initialize(members->radius, 3);
Vector_Copy(members->radius, radius);
state->State_Members_Free = State_Force_Free;
state->State_Update = State_Force_Update;
}
///
//Initializes a rendering buffer
//
//Parameters:
// buffer: Rendering buffer to initialize
static void RenderingManager_InitializeBuffer(RenderingBuffer* buffer)
{
//Shaders
buffer->shaderPrograms = (ShaderProgram**)malloc(sizeof(ShaderProgram*));
buffer->shaderPrograms[0] = ShaderProgram_Allocate();
ShaderProgram_Initialize(buffer->shaderPrograms[0], "./Shader/VertexShader.glsl", "./Shader/FragmentShader.glsl");
//Checking shaders
if (buffer->shaderPrograms[0]->shaderProgramID == 0)
{
printf("\nError Creating Shader Program!\nShader Results:\nV: %d\tF: %d\tP: %d\n",
buffer->shaderPrograms[0]->vertexShaderID,
buffer->shaderPrograms[0]->fragmentShaderID,
buffer->shaderPrograms[0]->shaderProgramID);
}
//Camera
buffer->camera = Camera_Allocate();
Camera_Initialize(buffer->camera);
//Lighting
buffer->directionalLightVector = Vector_Allocate();
Vector_Initialize(buffer->directionalLightVector, 3);
//buffer->directionalLightVector->components[0] = -0.77f;
//buffer->directionalLightVector->components[2] = -0.77f;
buffer->directionalLightVector->components[2] = -1.0f;
//Debug
buffer->debugOctTree = 0;
}
///
//Initializes a Template state
//
//Parameters:
// s: A pointer to the state to initialize
// acceleration: The acceleration of the parkourController
// maxVelocity: The maximum linear velocity of the parkourController
// angularVelocity: The angular velocity of the parkour controller (How fast can you turn?)
// jumpImpulse: The force exerted when jumping
// shootSpeed: The amount of seconds you must wait before shooting againS
void State_ParkourController_Initialize(State* s, const float acceleration, const float maxVelocity, const float angularVelocity, const float jumpImpulse, const float shootSpeed)
{
struct State_ParkourController_Members* members = (struct State_ParkourController_Members*)malloc(sizeof(struct State_ParkourController_Members));
s->members = (State_Members*)members;
//Set state members
members->acceleration = acceleration;
members->angularVelocity = angularVelocity;
members->maxVelocity = maxVelocity;
members->angularVelocity = angularVelocity;
members->jumpMag = jumpImpulse;
members->verticalRunning = 0;
members->horizontalRunning = 0;
members->spinningTime = 3.14159f / spinningRate;
members->spinningTimer = members->spinningTime;
members->shootTimer = 0.0f;
members->shootCooldown = shootSpeed;
members->wallNormal = Vector_Allocate();
Vector_Initialize(members->wallNormal, 3);
//Set functions
s->State_Update = State_ParkourController_Update;
s->State_Members_Free = State_ParkourController_Free;
}
///
//Rotates the runner controller
// obj: A pointer to the game object to rotate
// state: A pointer to the runner controller rotating the object
void State_RunnerController_Rotate(GObject* obj, State* state)
{
// create a camera object
Camera* cam = RenderingManager_GetRenderingBuffer()->camera;
//Grab the state members
struct State_RunnerController_Members* members = (struct State_RunnerController_Members*)state->members;
// if player's mouse is locked
if(InputManager_GetInputBuffer().mouseLock)
{
int deltaMouseX = (InputManager_GetInputBuffer().mousePosition[0] - InputManager_GetInputBuffer().previousMousePosition[0]);
int deltaMouseY = (InputManager_GetInputBuffer().mousePosition[1] - InputManager_GetInputBuffer().previousMousePosition[1]);
Vector* axis = Vector_Allocate();
Vector_Initialize(axis,3);
if(deltaMouseX != 0)
{
axis->components[1] = 1.0f;
// rotate the camera
Camera_ChangeYaw(cam, members->angularVelocity * deltaMouseX);
axis->components[1] = 0.0f;
}
if (deltaMouseY != 0)
{
Vector forwardVector;
Vector_INIT_ON_STACK(forwardVector, 3);
Matrix_SliceRow(&forwardVector, cam->rotationMatrix, 2, 0, 3);
// Keep camera from overextending it's boundaries.
if (deltaMouseY > 0)
{
if (Vector_DotProduct(&forwardVector, &Vector_E2) < 0.7f)
{
axis->components[0] = 1.0f;
Camera_ChangePitch(cam, members->angularVelocity * deltaMouseY);
axis->components[0] = 0.0f;
}
}
else if (deltaMouseY < 0)
{
if (Vector_DotProduct(&forwardVector, &Vector_E2) > -0.7f)
{
axis->components[0] = 1.0f;
Camera_ChangePitch(cam, members->angularVelocity * deltaMouseY);
axis->components[0] = 0.0f;
}
}
}
}
}
///
//Initializes a material
//
//Parameters:
// mat: A pointer to the material to initialize
// t: A pointer to the texture which this material represents an instance of
void Material_Initialize(Material* mat, Texture* t)
{
//Allocate & Initialize color matrix
mat->colorMatrix = Matrix_Allocate();
Matrix_Initialize(mat->colorMatrix, 4, 4);
//Allocate & initialize tile vector
mat->tile = Vector_Allocate();
Vector_Initialize(mat->tile, 2);
mat->tile->components[0] = mat->tile->components[1] = 1.0f;
mat->texture = t;
}
///
//Initializes a runner controller state
//
//Parameters:
// state: A pointer to the state to initialize as a runner controller
// acceleration: The acceleration of the runner
// maxvelocity: The max speed of the runner
// angularVelocity: the angular velocity of the runner
// jumpMag: The magnitude of the impulse which will be applied when the player jumps
void State_RunnerController_Initialize(State* state, const float acceleration, const float maxVelocity, const float angularVelocity, const float jumpMag)
{
struct State_RunnerController_Members* members = (struct State_RunnerController_Members*)malloc(sizeof(struct State_RunnerController_Members));
state->members = (State_Members)members;
members->acceleration = acceleration;
members->angularVelocity = angularVelocity;
members->maxVelocity = maxVelocity;
members->jumpMag = jumpMag;
members->verticalRunning = 0;
members->horizontalRunning = 0;
members->spinningTime = 3.14159f / spinningRate;
members->spinningTimer = members->spinningTime;
members->wallNormal = Vector_Allocate();
Vector_Initialize(members->wallNormal, 3);
state->State_Members_Free = State_RunnerController_Free;
state->State_Update = State_RunnerController_Update;
}
///
//Rotates the rendering manager's camera according to change in mouse position
//
//Parameters:
// GO: The game object this state is attached to
// state: The First person camera state updating the gameObject
void State_FirstPersonCamera_Rotate(GObject* GO, State* state)
{
Camera* cam = RenderingManager_GetRenderingBuffer().camera;
if(InputManager_GetInputBuffer().mouseLock)
{
float dt = TimeManager_GetDeltaSec();
int deltaMouseX = (InputManager_GetInputBuffer().mousePosition[0] - InputManager_GetInputBuffer().previousMousePosition[0]);
int deltaMouseY = (InputManager_GetInputBuffer().mousePosition[1] - InputManager_GetInputBuffer().previousMousePosition[1]);
Vector* axis = Vector_Allocate();
Vector_Initialize(axis, 3);
if (deltaMouseX != 0)
{
axis->components[1] = 1.0f;
Camera_Rotate(cam, axis, state->members->rotationSpeed * deltaMouseX);
axis->components[1] = 0.0f;
}
if (deltaMouseY != 0)
{
axis->components[0] = 1.0f;
Camera_Rotate(cam, axis, state->members->rotationSpeed * deltaMouseY);
axis->components[0] = 0.0f;
}
Vector_Free(axis);
}
}
///
//Initializes the scene within the engine.
//This must be done after all engine components are initialized.
void InitializeScene(void)
{
///
//Camera controller simulation
GObject* cam = GObject_Allocate();
GObject_Initialize(cam);
State* state = State_Allocate();
cam->body = RigidBody_Allocate();
RigidBody_Initialize(cam->body, cam->frameOfReference, 1.0f);
cam->body->coefficientOfRestitution = 0.1f;
cam->collider = Collider_Allocate();
AABBCollider_Initialize(cam->collider, 2.5f, 3.0f, 2.5f, &Vector_ZERO);
State_ParkourController_Initialize(state, 7.0f, 10.0f, 0.05f, 50.0f, 0.1f);
GObject_AddState(cam,state);
ObjectManager_AddObject(cam);
//Create floor
GObject* block = GObject_Allocate();
GObject_Initialize(block);
block->mesh = AssetManager_LookupMesh("Cube");
block->collider = Collider_Allocate();
AABBCollider_Initialize(block->collider, 2.0f, 2.0f, 2.0f, &Vector_ZERO);
block->body = RigidBody_Allocate();
RigidBody_Initialize(block->body, block->frameOfReference, 0.0f);
block->body->freezeTranslation = block->body->freezeRotation = 1;
block->body->dynamicFriction = block->body->staticFriction = 0.1f;
block->body->rollingResistance = 0.25f;
Vector v;
Vector_INIT_ON_STACK(v, 3);
v.components[0] = v.components[2] = 40.0f;
v.components[1] = 1.0f;
GObject_Scale(block, &v);
Vector_Copy(&v, &Vector_ZERO);
v.components[1] = -10.0f;
GObject_Translate(block, &v);
ObjectManager_AddObject(block);
//Create sphere
block = GObject_Allocate();
GObject_Initialize(block);
block->mesh = AssetManager_LookupMesh("Sphere");
block->material = Material_Allocate();
Material_Initialize(block->material, AssetManager_LookupTexture("Earth"));
//*Matrix_Index(block->material->colorMatrix, 2, 2) = 0.0f;
//*Matrix_Index(block->material->colorMatrix, 1, 1) = 0.0f;
block->collider = Collider_Allocate();
SphereCollider_Initialize(block->collider, 1.0f);
block->body = RigidBody_Allocate();
RigidBody_Initialize(block->body, block->frameOfReference, 0.0f);
block->body->dynamicFriction = block->body->staticFriction = 1.0f;
block->body->coefficientOfRestitution = 0.9f;
Vector_Copy(&v, &Vector_ZERO);
v.components[0] = -3.0f;
v.components[1] = 5.0f;
v.components[2] = -10.0f;
GObject_Translate(block, &v);
Vector_Copy(&v, &Vector_ZERO);
v.components[0] = v.components[1] = v.components[2] = 10.0f;
GObject_Scale(block, &v);
ObjectManager_AddObject(block);
//Set gravity
Vector* gravity = Vector_Allocate();
Vector_Initialize(gravity, 3);
gravity->components[1] = -9.81f;
PhysicsManager_AddGlobalAcceleration(gravity);
}