mirror of
https://github.com/SpartanJ/eepp.git
synced 2026-05-31 10:36:30 +03:00
Added cShapePoint for Physics ( usefull to draw boxes or rounded points faster ).
Working on the Physics example. Updated fonts example.
This commit is contained in:
Martín Lucas Golini
446
src/examples/physics/physics.cpp
Normal file
446
src/examples/physics/physics.cpp
Normal file
@@ -0,0 +1,446 @@
|
||||
#include <eepp/ee.hpp>
|
||||
|
||||
typedef cb::Callback0<void> SceneCb;
|
||||
|
||||
struct physicDemo {
|
||||
SceneCb init;
|
||||
SceneCb update;
|
||||
SceneCb destroy;
|
||||
};
|
||||
|
||||
std::vector<physicDemo> mDemo;
|
||||
eeInt mCurDemo = eeINDEX_NOT_FOUND;
|
||||
cSpace * mSpace;
|
||||
cBody * mMouseBody;
|
||||
cVect mMousePoint;
|
||||
cVect mMousePoint_last;
|
||||
cConstraint * mMouseJoint;
|
||||
|
||||
#define GRABABLE_MASK_BIT (1<<31)
|
||||
#define NOT_GRABABLE_MASK (~GRABABLE_MASK_BIT)
|
||||
|
||||
void CreateJointAndBody() {
|
||||
mMouseJoint = NULL;
|
||||
mMouseBody = eeNew( cBody, ( INFINITY, INFINITY ) );
|
||||
}
|
||||
|
||||
cWindow * mWindow;
|
||||
cInput * KM;
|
||||
|
||||
void DestroyBody() {
|
||||
eeSAFE_DELETE( mMouseBody );
|
||||
}
|
||||
|
||||
static const int image_width = 188;
|
||||
static const int image_height = 35;
|
||||
static const int image_row_length = 24;
|
||||
|
||||
static const char image_bitmap[] = {
|
||||
15,-16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,-64,15,63,-32,-2,0,0,0,0,0,0,0,
|
||||
0,0,0,0,0,0,0,0,0,0,0,31,-64,15,127,-125,-1,-128,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
||||
0,0,0,127,-64,15,127,15,-1,-64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,-1,-64,15,-2,
|
||||
31,-1,-64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,-1,-64,0,-4,63,-1,-32,0,0,0,0,0,0,
|
||||
0,0,0,0,0,0,0,0,0,0,1,-1,-64,15,-8,127,-1,-32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
||||
1,-1,-64,0,-8,-15,-1,-32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,-31,-1,-64,15,-8,-32,
|
||||
-1,-32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,-15,-1,-64,9,-15,-32,-1,-32,0,0,0,0,0,
|
||||
0,0,0,0,0,0,0,0,0,0,31,-15,-1,-64,0,-15,-32,-1,-32,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
||||
0,0,63,-7,-1,-64,9,-29,-32,127,-61,-16,63,15,-61,-1,-8,31,-16,15,-8,126,7,-31,
|
||||
-8,31,-65,-7,-1,-64,9,-29,-32,0,7,-8,127,-97,-25,-1,-2,63,-8,31,-4,-1,15,-13,
|
||||
-4,63,-1,-3,-1,-64,9,-29,-32,0,7,-8,127,-97,-25,-1,-2,63,-8,31,-4,-1,15,-13,
|
||||
-2,63,-1,-3,-1,-64,9,-29,-32,0,7,-8,127,-97,-25,-1,-1,63,-4,63,-4,-1,15,-13,
|
||||
-2,63,-33,-1,-1,-32,9,-25,-32,0,7,-8,127,-97,-25,-1,-1,63,-4,63,-4,-1,15,-13,
|
||||
-1,63,-33,-1,-1,-16,9,-25,-32,0,7,-8,127,-97,-25,-1,-1,63,-4,63,-4,-1,15,-13,
|
||||
-1,63,-49,-1,-1,-8,9,-57,-32,0,7,-8,127,-97,-25,-8,-1,63,-2,127,-4,-1,15,-13,
|
||||
-1,-65,-49,-1,-1,-4,9,-57,-32,0,7,-8,127,-97,-25,-8,-1,63,-2,127,-4,-1,15,-13,
|
||||
-1,-65,-57,-1,-1,-2,9,-57,-32,0,7,-8,127,-97,-25,-8,-1,63,-2,127,-4,-1,15,-13,
|
||||
-1,-1,-57,-1,-1,-1,9,-57,-32,0,7,-1,-1,-97,-25,-8,-1,63,-1,-1,-4,-1,15,-13,-1,
|
||||
-1,-61,-1,-1,-1,-119,-57,-32,0,7,-1,-1,-97,-25,-8,-1,63,-1,-1,-4,-1,15,-13,-1,
|
||||
-1,-61,-1,-1,-1,-55,-49,-32,0,7,-1,-1,-97,-25,-8,-1,63,-1,-1,-4,-1,15,-13,-1,
|
||||
-1,-63,-1,-1,-1,-23,-49,-32,127,-57,-1,-1,-97,-25,-1,-1,63,-1,-1,-4,-1,15,-13,
|
||||
-1,-1,-63,-1,-1,-1,-16,-49,-32,-1,-25,-1,-1,-97,-25,-1,-1,63,-33,-5,-4,-1,15,
|
||||
-13,-1,-1,-64,-1,-9,-1,-7,-49,-32,-1,-25,-8,127,-97,-25,-1,-1,63,-33,-5,-4,-1,
|
||||
15,-13,-1,-1,-64,-1,-13,-1,-32,-49,-32,-1,-25,-8,127,-97,-25,-1,-2,63,-49,-13,
|
||||
-4,-1,15,-13,-1,-1,-64,127,-7,-1,-119,-17,-15,-1,-25,-8,127,-97,-25,-1,-2,63,
|
||||
-49,-13,-4,-1,15,-13,-3,-1,-64,127,-8,-2,15,-17,-1,-1,-25,-8,127,-97,-25,-1,
|
||||
-8,63,-49,-13,-4,-1,15,-13,-3,-1,-64,63,-4,120,0,-17,-1,-1,-25,-8,127,-97,-25,
|
||||
-8,0,63,-57,-29,-4,-1,15,-13,-4,-1,-64,63,-4,0,15,-17,-1,-1,-25,-8,127,-97,
|
||||
-25,-8,0,63,-57,-29,-4,-1,-1,-13,-4,-1,-64,31,-2,0,0,103,-1,-1,-57,-8,127,-97,
|
||||
-25,-8,0,63,-57,-29,-4,-1,-1,-13,-4,127,-64,31,-2,0,15,103,-1,-1,-57,-8,127,
|
||||
-97,-25,-8,0,63,-61,-61,-4,127,-1,-29,-4,127,-64,15,-8,0,0,55,-1,-1,-121,-8,
|
||||
127,-97,-25,-8,0,63,-61,-61,-4,127,-1,-29,-4,63,-64,15,-32,0,0,23,-1,-2,3,-16,
|
||||
63,15,-61,-16,0,31,-127,-127,-8,31,-1,-127,-8,31,-128,7,-128,0,0
|
||||
};
|
||||
|
||||
int get_pixel(int x, int y) {
|
||||
return (image_bitmap[(x>>3) + y*image_row_length]>>(~x&0x7)) & 1;
|
||||
}
|
||||
|
||||
cShape * make_ball( cpFloat x, cpFloat y ) {
|
||||
cBody * body = cBody::New( 1.0, INFINITY );
|
||||
|
||||
body->Pos( cVectNew( x, y ) );
|
||||
|
||||
cShapePoint * shape = cShapePoint::New( body, 0.95, cVectZero );
|
||||
|
||||
shape->DrawRadius( 4 );
|
||||
shape->Elasticity( 0.0 );
|
||||
shape->Friction( 0.0 );
|
||||
|
||||
return shape;
|
||||
}
|
||||
|
||||
static int bodyCount = 0;
|
||||
|
||||
void Demo1Create() {
|
||||
CreateJointAndBody();
|
||||
|
||||
mSpace = Physics::cSpace::New();
|
||||
mSpace->Iterations( 1 );
|
||||
|
||||
// The space will contain a very large number of similary sized objects.
|
||||
// This is the perfect candidate for using the spatial hash.
|
||||
// Generally you will never need to do this.
|
||||
mSpace->UseSpatialHash( 2.0, 10000 );
|
||||
|
||||
bodyCount = 0;
|
||||
|
||||
cBody * body;
|
||||
cShape * shape;
|
||||
|
||||
eeFloat pX = mWindow->GetWidth() / 2 - ( image_width * 4 ) / 2;
|
||||
eeFloat pY = mWindow->GetHeight() / 2 - ( image_height * 4 ) / 2;
|
||||
|
||||
for(int y=0; y<image_height; y++){
|
||||
for(int x=0; x<image_width; x++){
|
||||
if( !get_pixel(x, y) ) continue;
|
||||
|
||||
shape = make_ball( pX + x * 4, pY + y * 4 );
|
||||
|
||||
mSpace->AddBody( shape->Body() );
|
||||
mSpace->AddShape( shape );
|
||||
|
||||
bodyCount++;
|
||||
}
|
||||
}
|
||||
|
||||
body = mSpace->AddBody( cBody::New( INFINITY, INFINITY ) );
|
||||
body->Pos( cVectNew( 0, mWindow->GetHeight() / 2 + 16 ) );
|
||||
body->Vel( cVectNew( 400, 0 ) );
|
||||
|
||||
shape = mSpace->AddShape( cShapeCircle::New( body, 8.0f, cVectZero ) );
|
||||
shape->Elasticity( 0.0 );
|
||||
shape->Friction( 0.0 );
|
||||
shape->Layers( NOT_GRABABLE_MASK );
|
||||
|
||||
bodyCount++;
|
||||
}
|
||||
|
||||
void Demo1Update(){
|
||||
}
|
||||
|
||||
void Demo1Destroy() {
|
||||
DestroyBody();
|
||||
eeSAFE_DELETE( mSpace );
|
||||
}
|
||||
|
||||
void Demo2Create() {
|
||||
CreateJointAndBody();
|
||||
|
||||
cShape::ResetShapeIdCounter();
|
||||
|
||||
mSpace = Physics::cSpace::New();
|
||||
mSpace->Gravity( cVectNew( 0, 100 ) );
|
||||
mSpace->SleepTimeThreshold( 0.5f );
|
||||
|
||||
cBody *body, *staticBody = mSpace->StaticBody();
|
||||
cShape * shape;
|
||||
|
||||
shape = mSpace->AddShape( cShapeSegment::New( staticBody, cVectNew( 0, mWindow->GetHeight() ), cVectNew( mWindow->GetWidth(), mWindow->GetHeight() ), 0.0f ) );
|
||||
shape->e( 1.0f );
|
||||
shape->u( 1.0f );
|
||||
shape->Layers( NOT_GRABABLE_MASK );
|
||||
|
||||
shape = mSpace->AddShape( cShapeSegment::New( staticBody, cVectNew( mWindow->GetWidth(), 0 ), cVectNew( mWindow->GetWidth(), mWindow->GetHeight() ), 0.0f ) );
|
||||
shape->e( 1.0f );
|
||||
shape->u( 1.0f );
|
||||
shape->Layers( NOT_GRABABLE_MASK );
|
||||
|
||||
shape = mSpace->AddShape( cShapeSegment::New( staticBody, cVectNew( 0, 0 ), cVectNew( 0, mWindow->GetHeight() ), 0.0f ) );
|
||||
shape->e( 1.0f );
|
||||
shape->u( 1.0f );
|
||||
shape->Layers( NOT_GRABABLE_MASK );
|
||||
|
||||
shape = mSpace->AddShape( cShapeSegment::New( staticBody, cVectNew( 0, 0 ), cVectNew( mWindow->GetWidth(), 0 ), 0.0f ) );
|
||||
shape->e( 1.0f );
|
||||
shape->u( 1.0f );
|
||||
shape->Layers( NOT_GRABABLE_MASK );
|
||||
|
||||
eeFloat hw = mWindow->GetWidth() / 2;
|
||||
|
||||
for(int i=0; i<14; i++){
|
||||
for(int j=0; j<=i; j++){
|
||||
body = mSpace->AddBody( cBody::New( 1.0f, Moment::ForBox( 1.0f, 30.0f, 30.0f ) ) );
|
||||
body->Pos( cVectNew( hw + j * 32 - i * 16, 100 + i * 32 ) );
|
||||
|
||||
shape = mSpace->AddShape( cShapePoly::New( body, 30.f, 30.f ) );
|
||||
shape->e( 0.0f );
|
||||
shape->u( 0.8f );
|
||||
}
|
||||
}
|
||||
|
||||
cpFloat radius = 15.0f;
|
||||
|
||||
body = mSpace->AddBody( cBody::New( 10.0f, Moment::ForCircle( 10.0f, 0.0f, radius, cVectZero ) ) );
|
||||
body->Pos( cVectNew( hw, mWindow->GetHeight() - radius - 5 ) );
|
||||
|
||||
//shape = mSpace->AddShape( cShapeCircleSprite::New( body, radius, cVectZero, mCircleSprite ) );
|
||||
shape = mSpace->AddShape( cShapeCircle::New( body, radius, cVectZero ) );
|
||||
shape->e( 0.0f );
|
||||
shape->u( 0.9f );
|
||||
}
|
||||
|
||||
void Demo2Update() {
|
||||
}
|
||||
|
||||
void Demo2Destroy() {
|
||||
DestroyBody();
|
||||
eeSAFE_DELETE( mSpace );
|
||||
}
|
||||
|
||||
enum CollisionTypes {
|
||||
BALL_TYPE,
|
||||
BLOCKING_SENSOR_TYPE,
|
||||
CATCH_SENSOR_TYPE
|
||||
};
|
||||
|
||||
struct Emitter {
|
||||
int queue;
|
||||
int blocked;
|
||||
cVect position;
|
||||
};
|
||||
Emitter emitterInstance;
|
||||
|
||||
cpBool blockerBegin( cArbiter *arb, cSpace *space, void *unused ) {
|
||||
cShape * a, * b;
|
||||
arb->GetShapes( &a, &b );
|
||||
|
||||
Emitter *emitter = (Emitter *) a->Data();
|
||||
|
||||
emitter->blocked++;
|
||||
|
||||
return cpFalse; // Return values from sensors callbacks are ignored,
|
||||
}
|
||||
|
||||
void blockerSeparate( cArbiter *arb, cSpace * space, void *unused ) {
|
||||
cShape * a, * b;
|
||||
arb->GetShapes( &a, &b );
|
||||
|
||||
Emitter *emitter = (Emitter *) a->Data();
|
||||
|
||||
emitter->blocked--;
|
||||
}
|
||||
|
||||
void postStepRemove( cSpace *space, void * tshape, void * unused ) {
|
||||
cShape * shape = reinterpret_cast<cShape*>( tshape );
|
||||
|
||||
if ( NULL != mMouseJoint && ( mMouseJoint->A() == shape->Body() || mMouseJoint->B() == shape->Body() ) ) {
|
||||
mSpace->RemoveConstraint( mMouseJoint );
|
||||
eeSAFE_DELETE( mMouseJoint );
|
||||
}
|
||||
|
||||
mSpace->RemoveBody( shape->Body() );
|
||||
mSpace->RemoveShape( shape );
|
||||
|
||||
cShape::Free( shape, true );
|
||||
}
|
||||
|
||||
cpBool catcherBarBegin(cArbiter *arb, Physics::cSpace *space, void *unused) {
|
||||
cShape * a, * b;
|
||||
arb->GetShapes( &a, &b );
|
||||
|
||||
Emitter *emitter = (Emitter *) a->Data();
|
||||
|
||||
emitter->queue++;
|
||||
|
||||
mSpace->AddPostStepCallback( cb::Make3( &postStepRemove ), b, NULL );
|
||||
|
||||
return cpFalse;
|
||||
}
|
||||
|
||||
void Demo3Create() {
|
||||
CreateJointAndBody();
|
||||
|
||||
cShape::ResetShapeIdCounter();
|
||||
|
||||
mSpace = Physics::cSpace::New();
|
||||
mSpace->Iterations( 10 );
|
||||
mSpace->Gravity( cVectNew( 0, 100 ) );
|
||||
|
||||
cBody * staticBody = mSpace->StaticBody();
|
||||
cShape * shape;
|
||||
|
||||
emitterInstance.queue = 5;
|
||||
emitterInstance.blocked = 0;
|
||||
emitterInstance.position = cVectNew( mWindow->GetWidth() / 2 , 150);
|
||||
|
||||
shape = mSpace->AddShape( cShapeCircle::New( staticBody, 15.0f, emitterInstance.position ) );
|
||||
shape->Sensor( 1 );
|
||||
shape->CollisionType( BLOCKING_SENSOR_TYPE );
|
||||
shape->Data( &emitterInstance );
|
||||
|
||||
// Create our catch sensor to requeue the balls when they reach the bottom of the screen
|
||||
shape = mSpace->AddShape( cShapeSegment::New( staticBody, cVectNew(-4000, 600), cVectNew(4000, 600), 15.0f ) );
|
||||
shape->Sensor( 1 );
|
||||
shape->CollisionType( CATCH_SENSOR_TYPE );
|
||||
shape->Data( &emitterInstance );
|
||||
|
||||
cSpace::cCollisionHandler handler;
|
||||
handler.a = BLOCKING_SENSOR_TYPE;
|
||||
handler.b = BALL_TYPE;
|
||||
handler.begin = cb::Make3( &blockerBegin );
|
||||
handler.separate = cb::Make3( &blockerSeparate );
|
||||
mSpace->AddCollisionHandler( handler );
|
||||
|
||||
handler.Reset(); // Reset all the values and the callbacks ( set the callbacks as !IsSet()
|
||||
|
||||
handler.a = CATCH_SENSOR_TYPE;
|
||||
handler.b = BALL_TYPE;
|
||||
handler.begin = cb::Make3( &catcherBarBegin );
|
||||
mSpace->AddCollisionHandler( handler );
|
||||
}
|
||||
|
||||
void Demo3Update() {
|
||||
if( !emitterInstance.blocked && emitterInstance.queue ){
|
||||
emitterInstance.queue--;
|
||||
|
||||
cBody * body = mSpace->AddBody( cBody::New( 1.0f, Moment::ForCircle(1.0f, 15.0f, 0.0f, cVectZero ) ) );
|
||||
body->Pos( emitterInstance.position );
|
||||
body->Vel( cVectNew( Math::Randf(-1,1), Math::Randf(-1,1) ) * (cpFloat)100 );
|
||||
|
||||
cShape *shape = mSpace->AddShape( cShapeCircle::New( body, 15.0f, cVectZero ) );
|
||||
shape->CollisionType( BALL_TYPE );
|
||||
}
|
||||
}
|
||||
|
||||
void Demo3Destroy() {
|
||||
DestroyBody();
|
||||
eeSAFE_DELETE( mSpace );
|
||||
}
|
||||
|
||||
void ChangeDemo( eeInt num ) {
|
||||
if ( num >= 0 && num < (eeInt)mDemo.size() && num != mCurDemo ) {
|
||||
if ( (eeInt)eeINDEX_NOT_FOUND != mCurDemo )
|
||||
mDemo[ mCurDemo ].destroy();
|
||||
|
||||
mCurDemo = num;
|
||||
|
||||
mDemo[ mCurDemo ].init();
|
||||
}
|
||||
}
|
||||
|
||||
void PhysicsCreate() {
|
||||
cPhysicsManager::CreateSingleton();
|
||||
cPhysicsManager * PM = cPhysicsManager::instance();
|
||||
cPhysicsManager::cDrawSpaceOptions * DSO = PM->GetDrawOptions();
|
||||
|
||||
DSO->DrawBBs = false;
|
||||
DSO->DrawShapes = true;
|
||||
DSO->DrawShapesBorders = true;
|
||||
DSO->CollisionPointSize = 4;
|
||||
DSO->BodyPointSize = 0;
|
||||
DSO->LineThickness = 1;
|
||||
|
||||
mDemo.clear();
|
||||
|
||||
physicDemo demo;
|
||||
|
||||
demo.init = cb::Make0( &Demo1Create );
|
||||
demo.update = cb::Make0( &Demo1Update );
|
||||
demo.destroy = cb::Make0( &Demo1Destroy );
|
||||
mDemo.push_back( demo );
|
||||
|
||||
demo.init = cb::Make0( &Demo2Create );
|
||||
demo.update = cb::Make0( &Demo2Update );
|
||||
demo.destroy = cb::Make0( &Demo2Destroy );
|
||||
mDemo.push_back( demo );
|
||||
|
||||
demo.init = cb::Make0( &Demo3Create );
|
||||
demo.update = cb::Make0( &Demo3Update );
|
||||
demo.destroy = cb::Make0( &Demo3Destroy );
|
||||
mDemo.push_back( demo );
|
||||
|
||||
ChangeDemo( 0 );
|
||||
}
|
||||
|
||||
void PhysicsUpdate() {
|
||||
mMousePoint = cVectNew( KM->GetMousePosf().x, KM->GetMousePosf().y );
|
||||
cVect newPoint = tovect( cpvlerp( tocpv( mMousePoint_last ), tocpv( mMousePoint ), 0.25 ) );
|
||||
mMouseBody->Pos( newPoint );
|
||||
mMouseBody->Vel( ( newPoint - mMousePoint_last ) * (cpFloat)mWindow->FPS() );
|
||||
mMousePoint_last = newPoint;
|
||||
|
||||
if ( KM->MouseLeftPressed() ) {
|
||||
if ( NULL == mMouseJoint ) {
|
||||
cVect point = cVectNew( KM->GetMousePosf().x, KM->GetMousePosf().y );
|
||||
|
||||
cShape * shape = mSpace->PointQueryFirst( point, GRABABLE_MASK_BIT, CP_NO_GROUP );
|
||||
|
||||
if( NULL != shape ){
|
||||
mMouseJoint = eeNew( cPivotJoint, ( mMouseBody, shape->Body(), cVectZero, shape->Body()->World2Local( point ) ) );
|
||||
|
||||
mMouseJoint->MaxForce( 50000.0f );
|
||||
mSpace->AddConstraint( mMouseJoint );
|
||||
}
|
||||
}
|
||||
} else if ( NULL != mMouseJoint ) {
|
||||
mSpace->RemoveConstraint( mMouseJoint );
|
||||
eeSAFE_DELETE( mMouseJoint );
|
||||
}
|
||||
|
||||
mDemo[ mCurDemo ].update();
|
||||
mSpace->Update();
|
||||
mSpace->Draw();
|
||||
}
|
||||
|
||||
void PhysicsDestroy() {
|
||||
mDemo[ mCurDemo ].destroy();
|
||||
}
|
||||
|
||||
EE_MAIN_FUNC int main (int argc, char * argv [])
|
||||
{
|
||||
mWindow = cEngine::instance()->CreateWindow( WindowSettings( 1024, 768, "eepp - Physics" ), ContextSettings( true ) );
|
||||
|
||||
if ( mWindow->Created() ) {
|
||||
KM = mWindow->GetInput();
|
||||
|
||||
mWindow->BackColor( eeColor( 255, 255, 255 ) );
|
||||
|
||||
PhysicsCreate();
|
||||
|
||||
while ( mWindow->Running() ) {
|
||||
KM->Update();
|
||||
|
||||
if ( KM->IsKeyDown( KEY_ESCAPE ) ) {
|
||||
mWindow->Close();
|
||||
}
|
||||
|
||||
PhysicsUpdate();
|
||||
|
||||
if ( KM->IsKeyUp( KEY_LEFT ) ) {
|
||||
ChangeDemo( mCurDemo - 1 );
|
||||
} else if ( KM->IsKeyUp( KEY_RIGHT ) ) {
|
||||
ChangeDemo( mCurDemo + 1 );
|
||||
}
|
||||
|
||||
mWindow->Display();
|
||||
}
|
||||
|
||||
PhysicsDestroy();
|
||||
}
|
||||
|
||||
cEngine::DestroySingleton();
|
||||
|
||||
EE::MemoryManager::ShowResults();
|
||||
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
Reference in New Issue
Block a user