void LiquidScene::createParticle() {
if (world != NULL) {
particleColor = b2ParticleColor(arc4random()%255, arc4random()%255, arc4random()%255, 255);
b2ParticleSystemDef psd;
psd.radius = 4.0/PT_RATIO;
particleSystem = world->CreateParticleSystem(&psd);
}
}
void LiquidFunScene::CreateBlockOfParticles() {
b2PolygonShape shape;
const b2Vec2 center = ConvertRelativePositionToWorld(b2Vec2(0.5f, 0.5f));
const b2Vec2 halfSize = ConvertRelativeSizeToWorld(
b2Vec2(0.4f, 0.02f));
shape.SetAsBox(halfSize.x, halfSize.y, b2Vec2(0.0f, 0.0f), 0.0f);
b2ParticleGroupDef pd;
pd.flags = b2_viscousParticle;
pd.position = center;
pd.shape = &shape;
pd.color = b2ParticleColor(255, 128, 128, 255);
m_world->CreateParticleGroup(pd);
}
BallSprite *BallSprite::createParticleSprite(Node *parent ,b2World *world, b2ParticleSystem *particleSystem, b2ParticleGroup *particleGroup,const std::string& filename) {
BallSprite* pInstance = (BallSprite *)Sprite::create();
//BallSprite* pInstance = BallSprite::createBallSprite(parent,world,filename);
pInstance->setTexture(filename);
parent->addChild(pInstance);
// 描画用ノードの作成
DrawNode* draw = DrawNode::create();
draw->setPosition(Vec2(0, 0));
pInstance->addChild(draw);
/* 円の描画 */
draw->drawDot(Vec2(pInstance->getBallRadius()/2, pInstance->getBallRadius()/2), // 中心
pInstance->getBallRadius(), // 半径
Color4F(1, 0.5f, 0, 200) // 色
);
particleSystem->SetRadius(getBallRadius()*1.2/PTM_RATIO);
b2ParticleDef particleDef;
//パーティクルの寿命
//particleDef.lifetime = 2.0f;
//particleDef.flags = b2_dynamicBody;
particleDef.flags = b2_waterParticle;
particleDef.flags |= b2_destructionListenerParticle;
particleDef.color = b2ParticleColor(100,150,255,255);
//particleDef.velocity.y = -100;
//グループへのポインタを渡しておく事でそのグループ内で管理する事ができる。
particleDef.group = particleGroup;
particleDef.flags = b2_waterParticle;
//void** userdata = particleSystem->GetUserDataBuffer();
particleDef.userData = pInstance;
particleSystem->CreateParticle(particleDef);
return pInstance;
}
void GameScene_Box2D::addParticle(){
//発生起点
b2Vec2 origin(300.0f/PTM_RATIO,300.0f/PTM_RATIO);
//パーティクル加速度
b2Vec2 velocity(0,100.0f);
b2ParticleDef particleDef;
particleDef.flags = b2_waterParticle;
particleDef.flags |= b2_destructionListenerParticle;
particleDef.color = b2ParticleColor(100,150,255,200);
//パーティクルの寿命
// particleDef.lifetime = 2.0f;
//グループへのポインタを渡しておく事でそのグループ内で管理する事ができる。
particleDef.group = _particleGroup;
//設定した数値の間で発射方向をランダムに設定
float ratep = (float)rand() / (float)RAND_MAX;
particleDef.position.x = origin.x + (100 * ratep)/PTM_RATIO - 100/PTM_RATIO;
particleDef.position.y = origin.y + (100 * ratep)/PTM_RATIO - 100/PTM_RATIO;
//設定した数値の間でランダムな位置にパーティクルを生成
float ratev = (float)rand() / (float)RAND_MAX;
particleDef.velocity.x = velocity.x + (5 * ratev) - (5 / 2);
//画像設定
Sprite * image = Sprite::create("ball.png");
image->setPositionX(particleDef.position.x * PTM_RATIO);
image->setPositionY(particleDef.position.y * PTM_RATIO);
//描画担当レイヤに渡す
addChild(image);
particleDef.userData = image;
_particleSystem->CreateParticle(particleDef);
}
// Creates a physics world and lays outt he
void LiquidFunScene::LayoutLevel(int level) {
// Scale the dimensions of the world to fit the view.
const CCSize viewSize = CCDirector::sharedDirector()->getVisibleSize();
const float aspectRatio = viewSize.width / viewSize.height;
m_worldExtents.x = k_worldWidth;
m_worldExtents.y = k_worldWidth / aspectRatio;
m_worldExtentMin = b2Vec2Min(m_worldExtents);
m_worldExtentMax = b2Vec2Max(m_worldExtents);
m_worldExtentsInWalls = m_worldExtents;
m_worldOffsetInWalls.Set(0.0f, 0.0f);
// Create a world.
m_world = new b2World(k_gravity);
m_world->SetParticleRadius(m_worldExtentMin * k_particleSize);
m_world->SetParticleDamping(0.2f);
// Enable the Box2D rendering layer.
Box2DGLESDebugDrawLayer* box2dLayer = new Box2DGLESDebugDrawLayer(
m_world, b2Vec2Min(b2Vec2(viewSize.width / m_worldExtents.x,
viewSize.height / m_worldExtents.y)));
box2dLayer->init();
addChild(box2dLayer);
GLESDebugDraw* const debugDraw = box2dLayer->GetGLESDebugDraw();
// Turn off AABB drawing.
debugDraw->SetFlags(debugDraw->GetFlags() & ~b2Draw::e_aabbBit);
// Render particles as solid circles.
debugDraw->SetSolidParticlesEnable(true);
// Create boundaries
CreateWalls();
CreateBalls(5, 0.075f);
CreateBlockOfParticles();
// Define map-specific stuff
switch (level) {
case 0: {
// Add an emitter in the middle
static const float k_colorCycleRate = 5.0f;
std::vector<b2ParticleColor> colors;
colors.push_back(b2ParticleColor(0xff, 0x00, 0x00, 0xff));
colors.push_back(b2ParticleColor(0xff, 0xff, 0xff, 0xff));
colors.push_back(b2ParticleColor(0x00, 0x00, 0xff, 0xff));
colors.push_back(b2ParticleColor(0x00, 0xff, 0x00, 0xff));
colors.push_back(b2ParticleColor(0x22, 0xff, 0x44, 0xff));
AddEmitter(ConvertRelativePositionToWorld(b2Vec2(0.5f, 0.1f)),
colors, k_colorCycleRate);
// Add a kill field to the bottom right of the screen.
b2CircleShape circle;
circle.m_radius = m_worldExtentMax * 0.025f;
b2Transform circleLocationSize;
circleLocationSize.SetIdentity();
circleLocationSize.Set(ConvertRelativePositionToWorld(
b2Vec2(0.8f, 0.9f)), 0.0f);
AddParticleKillField(circleLocationSize, circle, sizeof(circle));
break;
}
default:
CCLOG("ERROR: Invalid level %d defined.", level);
break;
}
}
#include <stdio.h>
void DestructionListener::SayGoodbye(b2Joint* joint){
if (test->m_mouseJoint == joint){
test->m_mouseJoint = NULL;
}else{
test->JointDestroyed(joint);
}
}
void DestructionListener::SayGoodbye(b2ParticleGroup* group){
test->ParticleGroupDestroyed(group);
}
const b2ParticleColor Test::k_ParticleColors[] = {
b2ParticleColor(0xff, 0x00, 0x00, 0xff), // red
b2ParticleColor(0x00, 0xff, 0x00, 0xff), // green
b2ParticleColor(0x00, 0x00, 0xff, 0xff), // blue
b2ParticleColor(0xff, 0x8c, 0x00, 0xff), // orange
b2ParticleColor(0x00, 0xce, 0xd1, 0xff), // turquoise
b2ParticleColor(0xff, 0x00, 0xff, 0xff), // magenta
b2ParticleColor(0xff, 0xd7, 0x00, 0xff), // gold
b2ParticleColor(0x00, 0xff, 0xff, 0xff), // cyan
};
const uint32 Test::k_ParticleColorsCount = B2_ARRAY_SIZE(Test::k_ParticleColors);
Test::Test(){
const b2ParticleSystemDef particleSystemDef;
b2Vec2 gravity;
gravity.Set(0.0f, -10.0f);
m_world = new b2World(gravity);
