mirror of https://github.com/axmolengine/axmol.git
108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
/****************************************************************************
|
|
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
|
|
|
|
https://axmolengine.github.io/
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
****************************************************************************/
|
|
|
|
#include "Ball.h"
|
|
#include "Paddle.h"
|
|
#include "../VisibleRect.h"
|
|
|
|
USING_NS_AX;
|
|
|
|
Ball::Ball() {}
|
|
|
|
Ball::~Ball() {}
|
|
|
|
float Ball::radius()
|
|
{
|
|
return getTexture()->getContentSize().width / 2;
|
|
}
|
|
|
|
Ball* Ball::ballWithTexture(Texture2D* aTexture)
|
|
{
|
|
Ball* pBall = new Ball();
|
|
pBall->initWithTexture(aTexture);
|
|
pBall->autorelease();
|
|
|
|
return pBall;
|
|
}
|
|
|
|
void Ball::move(float delta)
|
|
{
|
|
this->setPosition(getPosition() + _velocity * delta);
|
|
|
|
if (getPosition().x > VisibleRect::right().x - radius())
|
|
{
|
|
setPosition(VisibleRect::right().x - radius(), getPosition().y);
|
|
_velocity.x *= -1;
|
|
}
|
|
else if (getPosition().x < VisibleRect::left().x + radius())
|
|
{
|
|
setPosition(VisibleRect::left().x + radius(), getPosition().y);
|
|
_velocity.x *= -1;
|
|
}
|
|
}
|
|
|
|
void Ball::collideWithPaddle(Paddle* paddle)
|
|
{
|
|
auto paddleRect = paddle->getRect();
|
|
paddleRect.origin.x += paddle->getPosition().x;
|
|
paddleRect.origin.y += paddle->getPosition().y;
|
|
|
|
float lowY = paddleRect.getMinY();
|
|
float midY = paddleRect.getMidY();
|
|
float highY = paddleRect.getMaxY();
|
|
|
|
float leftX = paddleRect.getMinX();
|
|
float rightX = paddleRect.getMaxX();
|
|
|
|
if (getPosition().x > leftX && getPosition().x < rightX)
|
|
{
|
|
|
|
bool hit = false;
|
|
float angleOffset = 0.0f;
|
|
|
|
if (getPosition().y > midY && getPosition().y <= highY + radius())
|
|
{
|
|
setPosition(getPosition().x, highY + radius());
|
|
hit = true;
|
|
angleOffset = (float)M_PI / 2;
|
|
}
|
|
else if (getPosition().y < midY && getPosition().y >= lowY - radius())
|
|
{
|
|
setPosition(getPosition().x, lowY - radius());
|
|
hit = true;
|
|
angleOffset = -(float)M_PI / 2;
|
|
}
|
|
|
|
if (hit)
|
|
{
|
|
float hitAngle = (paddle->getPosition() - getPosition()).getAngle() + angleOffset;
|
|
|
|
float scalarVelocity = _velocity.getLength() * 1.05f;
|
|
float velocityAngle = -_velocity.getAngle() + 0.5f * hitAngle;
|
|
|
|
_velocity = Vec2::forAngle(velocityAngle) * scalarVelocity;
|
|
}
|
|
}
|
|
}
|