openvgfordummies/vgroids/droidobject.cpp

#include "game.h"
#include "droidobject.h"
#include "droidworld.h"

DroidObject::DroidObject(DroidWorld *dw, eDROIDOBJECTTYPE t )
{
    type = t;
    mass = 1.0f;
    drawSize = 128.0f;
    angle = (float)(rand() & 255)/255.0f * 360.0f;
    angleInc = ((float)(rand() & 255) / 255.0f - 0.5f)*360.0f;

    switch (type) {
    case eASTEROID:
    default:
        angleInc = 40.0f;
        drawSize = 64.0f;
        position = QVector3D( ((rand() & 255)/255.0f - 0.5f)*2.0f, ((rand() & 255)/255.0f - 0.5f)*2.0f, 0.0f );
        break;

    case ePLANET:
        mass = 4.0f;
        position = QVector3D(0,0,0);
        break;
    }

    world = dw;
    alive = true;
}


DroidObject::~DroidObject()
{

}




void DroidObject::run( float secsPassed ) {

    angle+=angleInc*secsPassed;

    if (type==ePLANET) {
        position = QVector3D(0,0,0);
        direction = QVector3D(0,0,0);
        return;         // down move
    }

    // run here.
    QVector3D t = direction * secsPassed;
    position += t;

    // slowdown
}


void DroidObject::draw()
{
    world->setMyTransform( this );
    switch (type) {
    case ePLANET:
        vgDrawImage(world->imageBall);
        break;
    case eASTEROID:
        vgDrawImage(world->imageAsteroid);
        break;
    }
}