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Aquaria/BBGE/RenderObject.cpp
fgenesis 5c419efd79 Remove RenderObject::updateAfterParent; simplify + clarify ParentManaged logic
SkeletalSprite was the only thing using it.
Instead of PM_STATIC it's now added to its Entity as PM_NONE.
PM_NONE is not auto-updated so SkeletalSprite::update() is now called
at the end of Entity::onUpdate()

(There's now a bug that during spirit form the screen stays black,
probably added that in an earlier commit. Will fix.)

(On second tought, maybe ParentManaged should be boolean.
Instead add a noAutoUpdate flag. But i'll save that for another time when i get around
to move all RenderObject bools into a bitmask.)
2022-05-20 03:27:15 +02:00

1039 lines
20 KiB
C++

/*
Copyright (C) 2007, 2010 - Bit-Blot
This file is part of Aquaria.
Aquaria is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "RenderObject.h"
#include "Core.h"
#include "MathFunctions.h"
#include "RenderBase.h"
#include <assert.h>
#include <algorithm>
#ifdef BBGE_USE_GLM
#include "glm/glm.hpp"
#include "glm/gtx/transform.hpp"
#endif
bool RenderObject::renderCollisionShape = false;
size_t RenderObject::lastTextureApplied = 0;
bool RenderObject::lastTextureRepeat = false;
bool RenderObject::renderPaths = false;
RenderObjectLayer *RenderObject::rlayer = 0;
void RenderObject::toggleAlpha(float t)
{
if (alpha.x < 0.5f)
alpha.interpolateTo(1,t);
else
alpha.interpolateTo(0,t);
}
int RenderObject::getTopLayer() const
{
if (parent)
{
return parent->getTopLayer();
}
return layer;
}
void RenderObject::setColorMult(const Vector &color, const float alpha) const
{
if (colorIsSaved)
{
debugLog("setColorMult() WARNING: can't do nested multiplies");
return;
}
this->colorIsSaved = true;
this->savedColor.x = this->color.x;
this->savedColor.y = this->color.y;
this->savedColor.z = this->color.z;
this->savedAlpha = this->alpha.x;
this->color *= color;
this->alpha.x *= alpha;
for (Children::const_iterator i = children.begin(); i != children.end(); i++)
{
(*i)->setColorMult(color, alpha);
}
}
void RenderObject::clearColorMult() const
{
if (!colorIsSaved)
{
debugLog("clearColorMult() WARNING: no saved color to restore");
return;
}
this->color.x = this->savedColor.x;
this->color.y = this->savedColor.y;
this->color.z = this->savedColor.z;
this->alpha.x = this->savedAlpha;
this->colorIsSaved = false;
for (Children::const_iterator i = children.begin(); i != children.end(); i++)
{
(*i)->clearColorMult();
}
}
RenderObject::RenderObject()
{
addType(SCO_RENDEROBJECT);
useOldDT = false;
ignoreUpdate = false;
overrideRenderPass = OVERRIDE_NONE;
renderPass = 0;
overrideCullRadiusSqr = 0;
repeatTexture = false;
alphaMod = 1;
motionBlur = 0;
idx = -1;
_fv = false;
_fh = false;
_markedForDelete = false;
updateCull = -1;
layer = LR_NONE;
cull = true;
pm = PM_NONE;
texture = 0;
width = 0;
height = 0;
scale = Vector(1,1,1);
color = Vector(1,1,1);
alpha.x = 1;
life = maxLife = 1;
decayRate = 0;
_dead = false;
_hidden = false;
fadeAlphaWithLife = false;
_blendType = BLEND_DEFAULT;
followCamera = 0;
stateData = 0;
parent = 0;
renderBeforeParent = false;
colorIsSaved = false;
shareAlphaWithChildren = false;
shareColorWithChildren = false;
}
RenderObject::~RenderObject()
{
freeMotionBlur();
assert(children.empty()); // if this fires some objects were not deleted and will leak
}
Vector RenderObject::getWorldPosition() const
{
return getWorldCollidePosition();
}
RenderObject* RenderObject::getTopParent() const
{
RenderObject *p = parent;
RenderObject *lastp=0;
while (p)
{
lastp = p;
p = p->parent;
}
return lastp;
}
bool RenderObject::isPieceFlippedHorizontal() const
{
RenderObject *p = getTopParent();
if (p)
return p->isfh();
return isfh();
}
Vector RenderObject::getInvRotPosition(const Vector &vec) const
{
glPushMatrix();
glLoadIdentity();
std::vector<const RenderObject*>chain;
const RenderObject *p = this;
while(p)
{
chain.push_back(p);
p = p->parent;
}
for (int i = chain.size()-1; i >= 0; i--)
{
glRotatef(-(chain[i]->rotation.z+chain[i]->rotationOffset.z), 0, 0, 1);
if (chain[i]->isfh())
{
glRotatef(180, 0, 1, 0);
}
}
if (vec.x != 0 || vec.y != 0)
{
glTranslatef(vec.x, vec.y, 0);
}
float m[16];
glGetFloatv(GL_MODELVIEW_MATRIX, m);
float x = m[12];
float y = m[13];
float z = m[14];
glPopMatrix();
return Vector(x,y,z);
}
#ifdef BBGE_USE_GLM
static glm::mat4 matrixChain(const RenderObject *ro)
{
glm::mat4 tranformMatrix = glm::scale(
glm::translate(
glm::rotate(
glm::translate(
ro->getParent() ? matrixChain(ro->getParent()) : glm::mat4(1.0f),
glm::vec3(ro->position.x+ro->offset.x, ro->position.y+ro->offset.y, 0)
),
ro->rotation.z + ro->rotationOffset.z,
glm::vec3(0, 0, 1)
),
glm::vec3(ro->beforeScaleOffset.x, ro->beforeScaleOffset.y, 0.0f)
),
glm::vec3(ro->scale.x, ro->scale.y, 0.0f)
);
if (ro->isfh())
tranformMatrix *= glm::rotate(180.0f, glm::vec3(0.0f, 1.0f, 0.0f));
tranformMatrix *= glm::translate(glm::vec3(ro->internalOffset.x, ro->internalOffset.y, 0.0f));
return tranformMatrix;
}
#else
static void matrixChain(RenderObject *ro)
{
if (RenderObject *parent = ro->getParent())
matrixChain(parent);
glTranslatef(ro->position.x+ro->offset.x, ro->position.y+ro->offset.y, 0);
glRotatef(ro->rotation.z+ro->rotationOffset.z, 0, 0, 1);
glTranslatef(ro->beforeScaleOffset.x, ro->beforeScaleOffset.y, 0);
glScalef(ro->scale.x, ro->scale.y, 0);
if (ro->isfh())
{
glRotatef(180, 0, 1, 0);
}
glTranslatef(ro->internalOffset.x, ro->internalOffset.y, 0);
}
#endif
float RenderObject::getWorldRotation() const
{
Vector up = getWorldCollidePosition(Vector(0,1));
Vector orig = getWorldPosition();
float rot = 0;
MathFunctions::calculateAngleBetweenVectorsInDegrees(orig, up, rot);
return rot;
}
Vector RenderObject::getWorldPositionAndRotation() const
{
Vector up = getWorldCollidePosition(Vector(0,1));
Vector orig = getWorldPosition();
MathFunctions::calculateAngleBetweenVectorsInDegrees(orig, up, orig.z);
return orig;
}
Vector RenderObject::getWorldCollidePosition(const Vector &vec) const
{
#ifdef BBGE_USE_GLM
glm::mat4 transformMatrix = glm::translate(
matrixChain(this),
glm::vec3(vec.x, vec.y, 0.0f)
);
return Vector(transformMatrix[3][0], transformMatrix[3][1], 0);
#else
glPushMatrix();
glLoadIdentity();
matrixChain(this);
glTranslatef(vec.x, vec.y, 0);
float m[16];
glGetFloatv(GL_MODELVIEW_MATRIX, m);
float x = m[12];
float y = m[13];
glPopMatrix();
return Vector(x,y,0);
#endif
}
void RenderObject::fhTo(bool fh)
{
if ((fh && !_fh) || (!fh && _fh))
{
flipHorizontal();
}
}
void RenderObject::flipHorizontal()
{
bool wasFlippedHorizontal = _fh;
_fh = !_fh;
if (wasFlippedHorizontal != _fh)
{
onFH();
}
}
void RenderObject::flipVertical()
{
_fv = !_fv;
}
void RenderObject::destroy()
{
for (Children::iterator i = children.begin(); i != children.end(); i++)
{
// must do this first
// otherwise child will try to remove THIS
(*i)->parent = 0;
(*i)->destroy();
if((*i)->pm == PM_POINTER)
delete (*i);
}
children.clear();
if (parent)
{
parent->removeChild(this);
parent = 0;
}
texture = NULL;
}
Vector RenderObject::getRealPosition() const
{
if (parent)
{
return position + offset + parent->getRealPosition();
}
return position + offset;
}
Vector RenderObject::getRealScale() const
{
if (parent)
{
return scale * parent->getRealScale();
}
return scale;
}
void RenderObject::setStateDataObject(StateData *state)
{
stateData = state;
}
void RenderObject::toggleCull(bool value)
{
cull = value;
}
void RenderObject::moveToFront()
{
if(RenderObject *p = parent)
{
if(p->children.size() && p->children[p->children.size()-1] != this)
{
p->removeChild(this);
p->addChild(this, (ParentManaged)this->pm, RBP_NONE, CHILD_BACK); // To back of list -> rendered on top
}
}
else if (layer != -1)
core->renderObjectLayers[this->layer].moveToFront(this);
}
void RenderObject::moveToBack()
{
if(RenderObject *p = parent)
{
if(p->children.size() && p->children[0] != this)
{
p->removeChild(this);
p->addChild(this, (ParentManaged)this->pm, RBP_NONE, CHILD_FRONT); // To front of list -> rendered first, below everything else
}
}
else if (layer != -1)
core->renderObjectLayers[this->layer].moveToBack(this);
}
void RenderObject::enableMotionBlur(int sz, int off)
{
MotionBlurData *mb = ensureMotionBlur();
mb->transition = false;
mb->positions.resize(sz);
mb->frameOffsetCounter = 0;
mb->frameOffset = off;
for (size_t i = 0; i < mb->positions.size(); i++)
{
mb->positions[i].position = position;
mb->positions[i].rotz = rotation.z;
}
}
void RenderObject::disableMotionBlur()
{
if(MotionBlurData *mb = this->motionBlur)
{
mb->transition = true;
mb->transitionTimer = 1.0;
}
}
bool RenderObject::isfhr() const
{
const RenderObject *p = this;
bool fh = false;
do
if (p->isfh())
fh = !fh;
while ((p = p->parent));
return fh;
}
bool RenderObject::isfvr() const
{
const RenderObject *p = this;
bool fv = false;
do
if (p->isfv())
fv = !fv;
while ((p = p->parent));
return fv;
}
bool RenderObject::hasRenderPass(const int pass) const
{
if (pass == renderPass)
return true;
for (Children::const_iterator i = children.begin(); i != children.end(); i++)
{
if (!(*i)->isDead() && (*i)->hasRenderPass(pass))
return true;
}
return false;
}
void RenderObject::render(const RenderState& rs) const
{
if (isHidden()) return;
/// new (breaks anything?)
if (alpha.x == 0 || alphaMod == 0) return;
if (core->currentLayerPass != RENDER_ALL && renderPass != RENDER_ALL)
{
RenderObject *top = getTopParent();
if (top == NULL && this->overrideRenderPass != OVERRIDE_NONE)
{
// FIXME: overrideRenderPass is not applied to the
// node itself in the original check (below); is
// that intentional? Doing the same thing here
// for the time being. --achurch
if (core->currentLayerPass != this->renderPass
&& core->currentLayerPass != this->overrideRenderPass)
return;
}
else if (top != NULL && top->overrideRenderPass != OVERRIDE_NONE)
{
if (core->currentLayerPass != top->overrideRenderPass)
return;
}
else
{
if (!hasRenderPass(core->currentLayerPass))
return;
}
}
if (MotionBlurData *mb = this->motionBlur)
{
const Vector oldPos = position;
const float oldAlpha = alpha.x;
const float oldRotZ = rotation.z;
const size_t sz = mb->positions.size();
const float m = 1.0f / float(sz);
const float m2 = 0.5f * (mb->transition ? mb->transitionTimer : 1.0f);
for (size_t i = 0; i < sz; i++)
{
position = mb->positions[i].position;
rotation.z = mb->positions[i].rotz;
alpha = (1.0f-(float(i) * m)) * m2;
renderCall(rs);
}
position = oldPos;
alpha.x = oldAlpha;
rotation.z = oldRotZ;
}
renderCall(rs);
}
void RenderObject::renderCall(const RenderState& rs) const
{
position += offset;
glPushMatrix();
if (layer != LR_NONE)
{
RenderObjectLayer *l = &core->renderObjectLayers[layer];
if (l->followCamera != NO_FOLLOW_CAMERA)
{
followCamera = l->followCamera;
}
}
if (followCamera!=0 && !parent)
{
if (followCamera == 1)
{
glLoadIdentity();
glScalef(core->globalResolutionScale.x, core->globalResolutionScale.y,0);
glTranslatef(position.x, position.y, position.z);
if (isfh())
{
glRotatef(180, 0, 1, 0);
}
glRotatef(rotation.z+rotationOffset.z, 0, 0, 1);
}
else
{
Vector pos = getFollowCameraPosition();
glTranslatef(pos.x, pos.y, pos.z);
if (isfh())
{
glRotatef(180, 0, 1, 0);
}
glRotatef(rotation.z+rotationOffset.z, 0, 0, 1);
}
}
else
{
glTranslatef(position.x, position.y, position.z);
if (RenderObject::renderPaths && position.data && position.data->path.getNumPathNodes() > 0)
{
glLineWidth(4);
glEnable(GL_BLEND);
size_t i = 0;
glColor4f(1.0f, 1.0f, 1.0f, 0.5f);
glBindTexture(GL_TEXTURE_2D, 0);
glBegin(GL_LINES);
for (i = 0; i < position.data->path.getNumPathNodes()-1; i++)
{
glVertex2f(position.data->path.getPathNode(i)->value.x-position.x, position.data->path.getPathNode(i)->value.y-position.y);
glVertex2f(position.data->path.getPathNode(i+1)->value.x-position.x, position.data->path.getPathNode(i+1)->value.y-position.y);
}
glEnd();
glPointSize(20);
glBegin(GL_POINTS);
glColor4f(0.5,0.5,1,1);
for (i = 0; i < position.data->path.getNumPathNodes(); i++)
{
glVertex2f(position.data->path.getPathNode(i)->value.x-position.x, position.data->path.getPathNode(i)->value.y-position.y);
}
glEnd();
}
glRotatef(rotation.z+rotationOffset.z, 0, 0, 1);
if (isfh())
{
glRotatef(180, 0, 1, 0);
}
}
glTranslatef(beforeScaleOffset.x, beforeScaleOffset.y, beforeScaleOffset.z);
glScalef(scale.x, scale.y, 1);
glTranslatef(internalOffset.x, internalOffset.y, internalOffset.z);
for (Children::const_iterator i = children.begin(); i != children.end(); i++)
{
if (!(*i)->isDead() && (*i)->renderBeforeParent)
(*i)->render(rs);
}
{
Vector col = color;
if (rlayer)
col *= rlayer->color;
glColor4f(col.x, col.y, col.z, alpha.x*alphaMod);
}
if (texture)
{
if (texture->textures[0] != lastTextureApplied || repeatTexture != lastTextureRepeat)
{
texture->apply(repeatTexture);
lastTextureRepeat = repeatTexture;
lastTextureApplied = texture->textures[0];
}
}
else
{
if (lastTextureApplied != 0 || repeatTexture != lastTextureRepeat)
{
glBindTexture(GL_TEXTURE_2D, 0);
lastTextureApplied = 0;
lastTextureRepeat = repeatTexture;
}
}
rs.gpu.setBlend(getBlendType());
bool doRender = true;
int pass = renderPass;
if (core->currentLayerPass != RENDER_ALL && renderPass != RENDER_ALL)
{
RenderObject *top = getTopParent();
if (top)
{
if (top->overrideRenderPass != OVERRIDE_NONE)
pass = top->overrideRenderPass;
}
doRender = (core->currentLayerPass == pass);
}
if (renderCollisionShape)
renderCollision(rs);
if (doRender)
onRender(rs);
for (Children::const_iterator i = children.begin(); i != children.end(); i++)
{
if (!(*i)->isDead() && !(*i)->renderBeforeParent)
(*i)->render(rs);
}
glPopMatrix();
position -= offset;
}
void RenderObject::renderCollision(const RenderState& rs) const
{
}
void RenderObject::addDeathNotify(RenderObject *r)
{
deathNotifications.remove(r);
deathNotifications.push_back(r);
}
void RenderObject::deathNotify(RenderObject *r)
{
deathNotifications.remove(r);
}
void RenderObject::lookAt(const Vector &pos, float t, float minAngle, float maxAngle, float offset)
{
Vector myPos = this->getWorldPosition();
float angle = 0;
if (myPos.x == pos.x && myPos.y == pos.y)
{
return;
}
MathFunctions::calculateAngleBetweenVectorsInDegrees(myPos, pos, angle);
RenderObject *p = parent;
while (p)
{
angle -= p->rotation.z;
p = p->parent;
}
if (isPieceFlippedHorizontal())
{
angle = 180-angle;
offset = -offset;
}
angle += offset;
if (angle < minAngle)
angle = minAngle;
if (angle > maxAngle)
angle = maxAngle;
int amt = 10;
if (isPieceFlippedHorizontal())
{
if (pos.x < myPos.x-amt)
{
angle = 0;
}
}
else
{
if (pos.x > myPos.x+amt)
{
angle = 0;
}
}
rotation.interpolateTo(Vector(0,0,angle), t);
}
void RenderObject::update(float dt)
{
if (ignoreUpdate)
{
return;
}
if (useOldDT)
{
dt = core->get_old_dt();
}
if (!isDead())
{
onUpdate(dt);
}
}
void RenderObject::removeChild(RenderObject *r)
{
r->parent = 0;
Children::iterator oldend = children.end();
Children::iterator newend = std::remove(children.begin(), oldend, r);
if(oldend != newend)
{
children.resize(std::distance(children.begin(), newend));
return;
}
for (Children::iterator i = children.begin(); i != children.end(); i++)
{
(*i)->removeChild(r);
}
}
void RenderObject::safeKill()
{
alpha = 0;
life = 0;
onEndOfLife();
for (RenderObjectList::iterator i = deathNotifications.begin(); i != deathNotifications.end(); i++)
{
(*i)->deathNotify(this);
}
if (this->parent)
{
_markedForDelete = true;
}
else
{
if (stateData)
stateData->removeRenderObject(this);
else
core->enqueueRenderObjectDeletion(this);
}
}
Vector RenderObject::getNormal() const
{
float a = MathFunctions::toRadians(getAbsoluteRotation().z);
return Vector(sinf(a),cosf(a));
}
// HACK: this is probably a slow implementation
Vector RenderObject::getForward() const
{
Vector v = getWorldCollidePosition(Vector(0,-1, 0));
Vector r = v - getWorldCollidePosition();
r.normalize2D();
return r;
}
Vector RenderObject::getAbsoluteRotation() const
{
Vector r = rotation;
if (parent)
{
return parent->getAbsoluteRotation() + r;
}
return r;
}
void RenderObject::onUpdate(float dt)
{
if (isDead()) return;
updateLife(dt);
// FIXME: We might not need to do lifetime checks either; I just
// left that above for safety since I'm not certain. --achurch
if (isHidden()) return;
position += velocity * dt;
velocity += gravity * dt;
position.update(dt);
velocity.update(dt);
scale.update(dt);
rotation.update(dt);
color.update(dt);
alpha.update(dt);
offset.update(dt);
internalOffset.update(dt);
beforeScaleOffset.update(dt);
rotationOffset.update(dt);
bool hasChildrenToDelete = false;
for (Children::iterator i = children.begin(); i != children.end(); i++)
{
if (shareAlphaWithChildren)
(*i)->alpha.x = this->alpha.x;
if (shareColorWithChildren)
(*i)->color = this->color;
if ((*i)->pm != PM_NONE)
{
(*i)->update(dt);
}
hasChildrenToDelete |= (*i)->_markedForDelete;
}
if (hasChildrenToDelete)
{
size_t w = 0;
const size_t N = children.size();
for (size_t i = 0; i < N; ++i)
{
RenderObject *ro = children[i];
if(ro->_markedForDelete)
{
ro->parent = NULL;
ro->destroy();
if(ro->pm == PM_POINTER)
delete ro;
}
else
children[w++] = ro;
}
children.resize(w);
}
if (MotionBlurData *mb = this->motionBlur)
{
if(!mb->transition)
{
if (mb->frameOffsetCounter >= mb->frameOffset)
{
mb->frameOffsetCounter = 0;
mb->positions[0].position = position;
mb->positions[0].rotz = rotation.z;
for (int i = mb->positions.size()-1; i > 0; i--)
{
mb->positions[i] = mb->positions[i-1];
}
}
else
mb->frameOffsetCounter ++;
}
else
{
mb->transitionTimer -= dt*2;
if (mb->transitionTimer <= 0)
freeMotionBlur();
}
}
}
void RenderObject::updateLife(float dt)
{
if (decayRate > 0)
{
life -= decayRate*dt;
if (life<=0)
{
safeKill();
}
}
if (fadeAlphaWithLife && !alpha.isInterpolating())
{
alpha = life/maxLife;
}
}
void RenderObject::unloadDevice()
{
for (Children::iterator i = children.begin(); i != children.end(); i++)
{
(*i)->unloadDevice();
}
}
void RenderObject::reloadDevice()
{
for (Children::iterator i = children.begin(); i != children.end(); i++)
{
(*i)->reloadDevice();
}
}
MotionBlurData* RenderObject::ensureMotionBlur()
{
MotionBlurData *mb = this->motionBlur;
if(!mb)
{
mb = new MotionBlurData;
this->motionBlur = mb;
}
return mb;
}
void RenderObject::freeMotionBlur()
{
if(motionBlur)
{
delete motionBlur;
motionBlur = NULL;
}
}
bool RenderObject::setTexture(const std::string &n)
{
std::string name = n;
stringToLowerUserData(name);
if (name.empty())
{
setTexturePointer(NULL);
return false;
}
if(texture && texture->getLoadResult() == TEX_SUCCESS && name == texture->name)
return true; // no texture change
CountedPtr<Texture> tex = core->addTexture(name);
setTexturePointer(tex);
return tex && tex->getLoadResult() == TEX_SUCCESS;
}
void RenderObject::addChild(RenderObject *r, ParentManaged pm, RenderBeforeParent rbp, ChildOrder order)
{
if (r->parent)
{
errorLog("Engine does not support multiple parents");
return;
}
if (order == CHILD_BACK)
children.push_back(r);
else
children.insert(children.begin(), r);
r->pm = pm;
if (rbp == RBP_OFF)
r->renderBeforeParent = 0;
else if (rbp == RBP_ON)
r->renderBeforeParent = 1;
r->parent = this;
}
StateData *RenderObject::getStateData() const
{
if (parent)
{
return parent->getStateData();
}
else
return stateData;
}
void RenderObject::setOverrideCullRadius(float ovr)
{
overrideCullRadiusSqr = ovr * ovr;
}
bool RenderObject::isCoordinateInRadius(const Vector &pos, float r) const
{
Vector d = pos-getRealPosition();
return (d.getSquaredLength2D() < r*r);
}
MotionBlurData::MotionBlurData()
: transition(false), frameOffsetCounter(0), frameOffset(0), transitionTimer(0)
{
}