void KRSimulator2D::step(double time)
{
mCollisions.clear();
cpSpaceStep((cpSpace*)mCPSpace, time);
if (mHasChangedAngle) {
cpBodySetAngle((cpBody*)mCPStaticBody, mNextAngle);
cpSpaceRehashStatic((cpSpace*)mCPSpace);
mHasChangedAngle = false;
}
}
CDynamics2DCylinderEntity::~CDynamics2DCylinderEntity() {
if(m_ptBody != NULL) {
cpSpaceRemoveConstraint(m_cEngine.GetPhysicsSpace(), m_ptLinearFriction);
cpSpaceRemoveConstraint(m_cEngine.GetPhysicsSpace(), m_ptAngularFriction);
cpConstraintFree(m_ptLinearFriction);
cpConstraintFree(m_ptAngularFriction);
cpSpaceRemoveBody(m_cEngine.GetPhysicsSpace(), m_ptBody);
cpBodyFree(m_ptBody);
cpSpaceRemoveShape(m_cEngine.GetPhysicsSpace(), m_ptShape);
}
else {
cpSpaceRemoveStaticShape(m_cEngine.GetPhysicsSpace(), m_ptShape);
cpSpaceRehashStatic(m_cEngine.GetPhysicsSpace());
}
cpShapeFree(m_ptShape);
}
static void
update(int ticks)
{
int steps = 3;
cpFloat dt = 1.0f/60.0f/(cpFloat)steps;
for(int i=0; i<steps; i++){
cpSpaceStep(space, dt);
// Manually update the position of the static shape so that
// the box rotates.
cpBodyUpdatePosition(staticBody, dt);
// Because the box was added as a static shape and we moved it
// we need to manually rehash the static spatial hash.
cpSpaceRehashStatic(space);
}
}
/**
* Method that updates the simulated space in case of staticShapes's change
*
* @author Cantidio Oliveira Fontes
* @since 03/10/2010
* @version 03/10/2010
* @details
* When you need to change the position of a static shape you need
* to call this method or the space won't update its collision detection data
*/
inline void updateStaticShapes()
{
cpSpaceRehashStatic(mSpace);
}
void handleEditor(void) {
int dir, i;
cpVect maxv, minv, mousePos;
palette_object_t *tmp;
cpConstraint *mouseJoint;
static cpShape *clickShape = NULL;
static bool canRotate = false;
static cpShape *controlPoint = NULL;
unsigned int w, h;
mouseJoint = atlMouseJoint();
if (atlLeftMouseDown()) {
clickShape = cpSpacePointQueryFirst(g_Space, atlMouseClickPos(),
GRABABLE_MASK_BIT, CP_NO_GROUP);
if (clickShape && !mouseJoint) {
if (clickShape->collision_type == PALETTE_TYPE) {
pullObjectFromPalette(clickShape);
} else if (clickShape->collision_type == CONTROL_POINT_TYPE) {
controlPoint = clickShape;
} else {
grabObject(clickShape->body);
}
}
} else {
controlPoint = NULL;
if (mouseJoint) {
atlRemoveMouseJoint(g_Space);
}
}
if (controlPoint)
pullControlPoint(controlPoint);
if (isKeyPressed(KEY_SPACE) && mouseJoint && canRotate) {
canRotate = false;
cpBodySetAngle(mouseJoint->b, cpBodyGetAngle(mouseJoint->b)+45.0f*(M_PI/180));
} else if (!isKeyPressed(KEY_SPACE)) {
canRotate = true;
}
w = atlWindowWidth();
h = atlWindowHeight();
maxv = atlMouseToSpace(w, h);
minv = cpv(maxv.x-w, maxv.y+h);
mousePos = atlMousePos();
dir = 0;
/* allow the mouse to scroll the screen at the edges of the X-axis. clamp it
* to maxv.x and minv.x so the mouse being outside the app window doesn't
* cause side scrolling inadvertently */
if (isKeyPressed(KEY_RIGHT) ||
(mousePos.x > maxv.x - 15 && mousePos.x < maxv.x))
dir = 1;
if (isKeyPressed(KEY_LEFT) ||
(mousePos.x < minv.x + 15 && mousePos.x > minv.x))
dir = -1;
/* when the editorBody is positioned at (0, 0) it can't move left any more */
if (editorBody->p.x < 0) {
dir = 0;
editorBody->p.x = 0;
}
if (dir) {
editorBody->v = cpvadd(editorBody->v, cpvmult(cpv(1, 0), 30.0f*dir));
cpBodyActivate(editorBody);
} else {
editorBody->v = cpvzero;
/* recalculate static palette objects' positions */
for (i = 0; i < MAX_PALETTE_SHAPES; ++i) {
tmp = paletteObjects[i];
if (tmp) {
tmp->body->p = cpv(minv.x+25, minv.y-(45*(i+1)));
}
}
cpSpaceRehashStatic(g_Space);
}
}