///
//Initializes a sphere collider
//
//Parameters:
// collider: The collider being initialized
// rad: The radius of the collider to initialize
//TODO:
// centroid: A pointer to a vector to copy as the centroid of the sphere collider
void SphereCollider_Initialize(Collider* collider, float rad)
{
//Initialize collider
Collider_Initialize(collider, COLLIDER_SPHERE, AssetManager_LookupMesh("Sphere"));
//Allocate data
collider->data->sphereData = SphereCollider_AllocateData();
//Initialize data
collider->data->sphereData->radius = rad;
}
///
//Renders a gameobject as it's mesh.
//
//Parameters:
// GO: Game object to render
void RenderingManager_Render(LinkedList* gameObjects)
{
//Clear buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//Set directional light
glProgramUniform3fv(renderingBuffer->shaderPrograms[0]->shaderProgramID, renderingBuffer->shaderPrograms[0]->directionalLightVectorLocation, 1, renderingBuffer->directionalLightVector->components);
Matrix modelMatrix;
Matrix_INIT_ON_STACK(modelMatrix, 4, 4);
Matrix viewMatrix;
Matrix_INIT_ON_STACK(viewMatrix, 4, 4);
Matrix modelViewProjectionMatrix;
Matrix_INIT_ON_STACK(modelViewProjectionMatrix, 4, 4);
//Turn camera's frame of reference into view matrix
Camera_ToMatrix4(renderingBuffer->camera, &viewMatrix);
//Set viewMatrix uniform
glProgramUniformMatrix4fv(renderingBuffer->shaderPrograms[0]->shaderProgramID, renderingBuffer->shaderPrograms[0]->viewMatrixLocation, 1, GL_TRUE, viewMatrix.components);
//Set projectionMatrix Uniform
glProgramUniformMatrix4fv(renderingBuffer->shaderPrograms[0]->shaderProgramID, renderingBuffer->shaderPrograms[0]->projectionMatrixLocation, 1, GL_TRUE, renderingBuffer->camera->projectionMatrix->components);
struct LinkedList_Node* current = gameObjects->head;
while (current != NULL)
{
GObject* gameObj = (GObject*)(current->data);
//Render gameobject's mesh if it exists
if (gameObj->mesh != NULL)
{
//Set color matrix
glProgramUniformMatrix4fv(renderingBuffer->shaderPrograms[0]->shaderProgramID, renderingBuffer->shaderPrograms[0]->colorMatrixLocation, 1, GL_TRUE, gameObj->colorMatrix->components);
//Set modelMatrix uniform
FrameOfReference_ToMatrix4(gameObj->frameOfReference, &modelMatrix);
glProgramUniformMatrix4fv(renderingBuffer->shaderPrograms[0]->shaderProgramID, renderingBuffer->shaderPrograms[0]->modelMatrixLocation, 1, GL_TRUE, modelMatrix.components);
//Construct modelViewProjectionMatrix
Matrix_Copy(&modelViewProjectionMatrix, &modelMatrix);
Matrix_TransformMatrix(&viewMatrix, &modelViewProjectionMatrix);
Matrix_TransformMatrix(renderingBuffer->camera->projectionMatrix, &modelViewProjectionMatrix);
//Set modelViewProjectionMatrix uniform
glProgramUniformMatrix4fv(renderingBuffer->shaderPrograms[0]->shaderProgramID, renderingBuffer->shaderPrograms[0]->modelViewProjectionMatrixLocation, 1, GL_TRUE, modelViewProjectionMatrix.components);
if (gameObj->texture != NULL)
{
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, gameObj->texture->textureID);
//Send texture to uniform
glUniform1i(renderingBuffer->shaderPrograms[0]->textureLocation, 0);
}
else
{
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, AssetManager_LookupTexture("Test")->textureID);
//Send texture to uniform
glUniform1i(renderingBuffer->shaderPrograms[0]->textureLocation, 0);
}
//Setup GPU program to draw this mesh
Mesh_Render(gameObj->mesh, gameObj->mesh->primitive);
}
//Render gameObject's collider if it exists & in debug mode
if(gameObj->collider != NULL && gameObj->collider->debug)
{
//Set color matrix
glProgramUniformMatrix4fv(renderingBuffer->shaderPrograms[0]->shaderProgramID, renderingBuffer->shaderPrograms[0]->colorMatrixLocation, 1, GL_TRUE, gameObj->collider->colorMatrix->components);
//Create modelMatrix from correct Frame Of Reference
if(gameObj->body != NULL)
{
FrameOfReference_ToMatrix4(gameObj->body->frame, &modelMatrix);
}
else
{
FrameOfReference_ToMatrix4(gameObj->frameOfReference, &modelMatrix);
}
//If the object has an AABB collider, take into account the offset
if(gameObj->collider->type == COLLIDER_AABB)
{
ColliderData_AABB* AABB = gameObj->collider->data->AABBData;
*Matrix_Index(&modelMatrix, 0, 3) += AABB->centroid->components[0];
*Matrix_Index(&modelMatrix, 1, 3) += AABB->centroid->components[1];
*Matrix_Index(&modelMatrix, 2, 3) += AABB->centroid->components[2];
}
//Set the modelMatrix
glProgramUniformMatrix4fv(renderingBuffer->shaderPrograms[0]->shaderProgramID, renderingBuffer->shaderPrograms[0]->modelMatrixLocation, 1, GL_TRUE, modelMatrix.components);
//Construct modelViewProjectionMatrix
Matrix_Copy(&modelViewProjectionMatrix, &modelMatrix);
Matrix_TransformMatrix(&viewMatrix, &modelViewProjectionMatrix);
Matrix_TransformMatrix(renderingBuffer->camera->projectionMatrix, &modelViewProjectionMatrix);
//Set modelViewProjectionMatrix uniform
glProgramUniformMatrix4fv(renderingBuffer->shaderPrograms[0]->shaderProgramID, renderingBuffer->shaderPrograms[0]->modelViewProjectionMatrixLocation, 1, GL_TRUE, modelViewProjectionMatrix.components);
//Bind white texture
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, AssetManager_LookupTexture("White")->textureID);
//Send texture to uniform
glUniform1i(renderingBuffer->shaderPrograms[0]->textureLocation, 0);
//Setup GPU program to draw this mesh
Mesh_Render(gameObj->collider->representation, GL_LINES);
//TODO: Remove
//Change the color of colliders to green until they collide
*Matrix_Index(gameObj->collider->colorMatrix, 0, 0) = 0.0f;
*Matrix_Index(gameObj->collider->colorMatrix, 1, 1) = 1.0f;
*Matrix_Index(gameObj->collider->colorMatrix, 2, 2) = 0.0f;
}
current = current->next;
}
//Render the oct tree
if(renderingBuffer->debugOctTree)
{
//Set the color matrix
Matrix octTreeColor;
Matrix_INIT_ON_STACK(octTreeColor, 4, 4);
*Matrix_Index(&octTreeColor, 0, 0) = 0.0f;
*Matrix_Index(&octTreeColor, 1, 1) = 1.0f;
*Matrix_Index(&octTreeColor, 2, 2) = 0.0f;
glProgramUniformMatrix4fv(renderingBuffer->shaderPrograms[0]->shaderProgramID, renderingBuffer->shaderPrograms[0]->colorMatrixLocation, 1, GL_TRUE, octTreeColor.components);
Mesh* cube = AssetManager_LookupMesh("CubeWire");
Texture* white = AssetManager_LookupTexture("White");
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, white->textureID);
//Send texture to uniform
glUniform1i(renderingBuffer->shaderPrograms[0]->textureLocation, 0);
RenderingManager_RenderOctTree(ObjectManager_GetObjectBuffer().octTree->root, &modelViewProjectionMatrix, &viewMatrix, renderingBuffer->camera->projectionMatrix, cube);
}
//Start drawing threads on gpu
glFlush();
}
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;
}
}
}
// 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;
}
}
}
///
//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);
}