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Aquaria/BBGE/AfterEffect.cpp
fgenesis 9b63b400d5 Misc code cleanups, little SkeletalSprite loading improvement.
- Removed some unused member variables.

- The BBGE_BUILD_WIDESCREEN define is now gone.

- Added an TiXMLDocument cache to prevent parsing the same file
once for each entity on the map with the same skeletal.

- Removed Lua func entity_warpToPathStart, which was essentially a no-op
because Entity::followingPath was always NULL. Removed related code.

- Set texture wrap only when required.

(Some changes taken from https://bitbucket.org/mattbierner/ios-aquaria,
special thanks for changeset 72d6460d9e60)
2012-02-19 04:57:04 +01:00

600 lines
15 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 "AfterEffect.h"
//#include "math.h"
#include <assert.h>
Effect::Effect()
{
done = false;
rate = 1;
}
AfterEffectManager::AfterEffectManager(int xDivs, int yDivs)
{
active = false;
activeShader = AS_NONE;
numEffects = 0;
bRenderGridPoints = true;
screenWidth = core->getWindowWidth();
screenHeight = core->getWindowHeight();
this->xDivs = 0;
this->yDivs = 0;
drawGrid = 0;
#ifdef BBGE_BUILD_OPENGL
this->xDivs = xDivs;
this->yDivs = yDivs;
//cameraPointer = nCameraPointer;
//Asssuming the resolutions values are > 256 and < 2048
//Set the texture heights and widths
if (core->frameBuffer.isInited())
{
textureWidth = core->frameBuffer.getWidth();
textureHeight = core->frameBuffer.getHeight();
}
else
{
if (screenWidth <= 512)
textureWidth = 512;
else if (screenWidth <= 1024)
textureWidth = 1024;
else
textureWidth = 2048;
if (screenHeight <= 512)
textureHeight = 512;
else if (screenHeight <= 1024)
textureHeight = 1024;
else
textureHeight = 2048;
}
//create our texture
glGenTextures(1,&texture);
glBindTexture(GL_TEXTURE_2D,texture);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, 3, textureWidth, textureHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
#endif
//BuildMip();
if (xDivs != 0 && yDivs != 0)
{
drawGrid = new Vector * [xDivs];
for (int i = 0; i < xDivs; i++)
{
drawGrid[i] = new Vector [yDivs];
}
}
loadShaders();
}
void AfterEffectManager::loadShaders()
{
/*
blurShader.load("data/shaders/stan.vert", "data/shaders/blur.frag");
bwShader.load("data/shaders/stan.vert", "data/shaders/bw.frag");
washoutShader.load("data/shaders/stan.vert", "data/shaders/washout.frag");
//motionBlurShader.load("data/shaders/stan.vert", "data/shaders/hoblur.frag");
motionBlurShader.load("data/shaders/stan.vert", "data/shaders/blur.frag");
glowShader.load("data/shaders/stan.vert", "data/shaders/glow.frag");
*/
}
AfterEffectManager::~AfterEffectManager()
{
if (drawGrid)
{
int i;
for (i = 0; i < xDivs; i++)
{
delete[] drawGrid[i];
}
delete[] drawGrid;
}
deleteEffects();
}
void AfterEffectManager::deleteEffects()
{
for (int i = 0; i < effects.size(); i++)
{
if (effects[i])
{
delete effects[i];
}
}
effects.clear();
numEffects=0;
while (!openSpots.empty())
openSpots.pop();
}
void AfterEffectManager::clear()
{
deleteEffects();
resetGrid();
}
void AfterEffectManager::update(float dt)
{
if (core->particlesPaused) return;
resetGrid();
if (core->frameBuffer.isInited())
active = true;
else
active = false;
for (int i = 0; i < effects.size(); i++)
{
Effect *e = effects[i];
if (e)
{
active = true;
e->update(dt, drawGrid, xDivs, yDivs);
if (e->done)
{
numEffects--;
destroyEffect(i);
}
}
}
}
void AfterEffectManager::resetGrid()
{
for (int i = 0; i < xDivs; i++)
{
for (int j = 0; j < yDivs; j++)
{
drawGrid[i][j].x = i/(float)(xDivs-1);
drawGrid[i][j].y = j/(float)(yDivs-1);
}
}
}
void AfterEffectManager::destroyEffect(int id)
{
delete effects[id];
effects[id] = 0;
openSpots.push(id);
}
void AfterEffectManager::capture()
{
/*
#ifdef BBGE_BUILD_OPENGL
glBindTexture(GL_TEXTURE_2D,texture);
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, screenWidth, screenHeight);
#endif
*/
if (core->frameBuffer.isInited())
{
core->frameBuffer.endCapture();
//core->enable2D(core->pixelScale);
}
else
{
#ifdef BBGE_BUILD_OPENGL
glBindTexture(GL_TEXTURE_2D,texture);
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, screenWidth, screenHeight);
#endif
}
//glDisable(GL_TEXTURE_2D);
}
void AfterEffectManager::render()
{
#ifdef BBGE_BUILD_OPENGL
glPushMatrix();
//glDisable(GL_BLEND);
//glEnable(GL_BLEND);
//glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glDisable (GL_ALPHA_TEST);
glDisable(GL_BLEND);
capture();
glTranslatef(core->cameraPos.x, core->cameraPos.y, 0);
glScalef(core->invGlobalScale, core->invGlobalScale,0);
/*
static float angle;
angle += 0.03f;
*/
//glRotatef(angle, 0, 0, 1);
//glColor4f(1,1,1,0.75);
glColor4f(1,1,1,1);
renderGrid();
//renderGridPoints();
glPopMatrix();
#endif
}
void AfterEffectManager::setActiveShader(ActiveShader as)
{
activeShader = as;
}
void AfterEffectManager::renderGrid()
{
#ifdef BBGE_BUILD_OPENGL
//glBindTexture(GL_TEXTURE_2D, texture);
if (core->frameBuffer.isInited())
core->frameBuffer.bindTexture();
else
glBindTexture(GL_TEXTURE_2D, texture);
//bwShader.bind();
Shader *activeShader=0;
if (core->frameBuffer.isInited())
{
switch(this->activeShader)
{
case AS_BLUR:
activeShader = &blurShader;
break;
case AS_BW:
activeShader = &bwShader;
break;
case AS_WASHOUT:
activeShader = &washoutShader;
break;
case AS_MOTIONBLUR:
activeShader = &motionBlurShader;
break;
case AS_GLOW:
activeShader = &glowShader;
break;
}
}
if (activeShader)
activeShader->bind();
screenWidth = core->getWindowWidth();
screenHeight = core->getWindowHeight();
/*
float percentX, percentY;
percentX = 1;
percentY = 0.5;
*/
/*
percentX = (float)textureWidth/(float)screenWidth;
percentY = (float)textureHeight/(float)screenHeight;
*/
float percentX, percentY;
percentX = (float)screenWidth/(float)textureWidth;
percentY = (float)screenHeight/(float)textureHeight;
/*
if (screenWidth <= textureWidth)
{
percentX = (float)screenWidth/(float)textureWidth;
percentY = (float)screenHeight/(float)textureHeight;
}
else
{
percentY = 10;
}
*/
int vw = core->getVirtualWidth();
int vh = core->getVirtualHeight();
int offx = -core->getVirtualOffX();
int offy = -core->getVirtualOffY();
//float div = xDivs;
for (int i = 0; i < (xDivs-1); i++)
{
for (int j = 0; j < (yDivs-1); j++)
{
glBegin(GL_QUADS);
//glColor3f(i/div, i/div, i/div);
glTexCoord2f(i/(float)(xDivs-1)*percentX, 1*percentY-(j)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE0_ARB,i/(float)(xDivs-1)*percentX, 1*percentY-(j)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE1_ARB,0,0);
glVertex2f(offx + vw*drawGrid[i][j].x, offy + vh*drawGrid[i][j].y);
glTexCoord2f(i/(float)(xDivs-1)*percentX, 1*percentY-(j+1)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE0_ARB,i/(float)(xDivs-1)*percentX, 1*percentY-(j+1)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE1_ARB,0,(float)(screenHeight/(yDivs-1))/16);
glVertex2f(offx + vw*drawGrid[i][j+1].x, offy + vh*drawGrid[i][j+1].y);
glTexCoord2f((i+1)/(float)(xDivs-1)*percentX, 1*percentY-(j+1)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE0_ARB,(i+1)/(float)(xDivs-1)*percentX, 1*percentY-(j+1)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE1_ARB,(float)(screenWidth/(xDivs-1))/16,(float)(screenHeight/(yDivs-1))/16);
glVertex2f(offx + vw*drawGrid[i+1][j+1].x, offy + vh*drawGrid[i+1][j+1].y);
glTexCoord2f((i+1)/(float)(xDivs-1)*percentX, 1*percentY-(j)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE0_ARB,(i+1)/(float)(xDivs-1)*percentX, 1*percentY-(j)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE1_ARB,(float)(screenWidth/(xDivs-1))/16,0);
glVertex2f(offx + vw*drawGrid[i+1][j].x, offy + vh*drawGrid[i+1][j].y);
glEnd();
}
}
// uncomment to render grid points
/*
glBindTexture(GL_TEXTURE_2D, 0);
glPointSize(2);
glColor4f(1, 0, 0, 0.5);
for (int i = 0; i < (xDivs-1); i++)
{
for (int j = 0; j < (yDivs-1); j++)
{
glBegin(GL_POINTS);
//glColor3f(i/div, i/div, i/div);
glTexCoord2f(i/(float)(xDivs-1)*percentX, 1*percentY-(j)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE0_ARB,i/(float)(xDivs-1)*percentX, 1*percentY-(j)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE1_ARB,0,0);
glVertex2f(800*drawGrid[i][j].x, 600*drawGrid[i][j].y);
glTexCoord2f(i/(float)(xDivs-1)*percentX, 1*percentY-(j+1)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE0_ARB,i/(float)(xDivs-1)*percentX, 1*percentY-(j+1)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE1_ARB,0,(float)(screenHeight/(yDivs-1))/16);
glVertex2f(800*drawGrid[i][j+1].x, 600*drawGrid[i][j+1].y);
glTexCoord2f((i+1)/(float)(xDivs-1)*percentX, 1*percentY-(j+1)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE0_ARB,(i+1)/(float)(xDivs-1)*percentX, 1*percentY-(j+1)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE1_ARB,(float)(screenWidth/(xDivs-1))/16,(float)(screenHeight/(yDivs-1))/16);
glVertex2f(800*drawGrid[i+1][j+1].x, 600*drawGrid[i+1][j+1].y);
glTexCoord2f((i+1)/(float)(xDivs-1)*percentX, 1*percentY-(j)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE0_ARB,(i+1)/(float)(xDivs-1)*percentX, 1*percentY-(j)/(float)(yDivs-1)*percentY);
//glMultiTexCoord2fARB(GL_TEXTURE1_ARB,(float)(screenWidth/(xDivs-1))/16,0);
glVertex2f(800*drawGrid[i+1][j].x, 600*drawGrid[i+1][j].y);
glEnd();
}
}
*/
//glDisable(GL_TEXTURE_2D);
RenderObject::lastTextureApplied = 0;
glBindTexture(GL_TEXTURE_2D, 0);
if (activeShader)
activeShader->unbind();
//bwShader.unbind();
//glActiveTextureARB(GL_TEXTURE0_ARB);
//glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
//if (bRenderGridPoints)
// renderGridPoints();
#endif
}
void AfterEffectManager::renderGridPoints()
{
#ifdef BBGE_BUILD_OPENGL
glColor4f(0.0f,0.0f,0.0f,1.0f);
for (int i = 0; i < (xDivs); i++)
{
for (int j = 0; j < (yDivs); j++)
{
glBegin(GL_QUADS);
glVertex2f(screenWidth*drawGrid[i][j].x-3, screenHeight*drawGrid[i][j].y-3);
glVertex2f(screenWidth*drawGrid[i][j].x-3, screenHeight*drawGrid[i][j].y+3);
glVertex2f(screenWidth*drawGrid[i][j].x+3, screenHeight*drawGrid[i][j].y+3);
glVertex2f(screenWidth*drawGrid[i][j].x+3, screenHeight*drawGrid[i][j].y-3);
glEnd();
}
}
#endif
}
void AfterEffectManager::unloadDevice()
{
if (texture)
glDeleteTextures(1,&texture);
}
void AfterEffectManager::reloadDevice()
{
screenWidth = core->getWindowWidth();
screenHeight = core->getWindowHeight();
if (core->frameBuffer.isInited())
{
textureWidth = core->frameBuffer.getWidth();
textureHeight = core->frameBuffer.getHeight();
}
else
{
if (screenWidth <= 1024)
textureWidth = 1024;
else
textureWidth = 2048;
if (screenHeight <= 1024)
textureHeight = 1024;
else
textureHeight = 2048;
}
//create our texture
glGenTextures(1,&texture);
glBindTexture(GL_TEXTURE_2D,texture);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, 3, textureWidth, textureHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
}
void AfterEffectManager::addEffect(Effect *e)
{
if (!openSpots.empty())
{
int i = openSpots.front();
openSpots.pop();
effects[i] = e;
}
else
{
effects.push_back(e);
}
numEffects++;
//float lowest = 9999;
Vector base(0,0,0);
//Vector *newPos = &base;
//Vector *v;
e->position.x /= screenWidth;
//e->position.x *= xDivs;
e->position.y /= screenHeight;
//e->position.y *= yDivs;
/*
for (int x = 1; x < xDivs-1; x++)
{
for (int y = 1; y < yDivs-1; y++)
{
v = &drawGrid[x][y];
float dist = (v->x - e->position.x)*(v->x - e->position.x)+(v->y - e->position.y)*(v->y - e->position.y);
if (dist < lowest)
{
lowest = dist;
newPos = &drawGrid[x][y];
}
}
}
e->position = Vector(newPos->x, newPos->y, newPos->z);
*/
}
void ShockEffect::update(float dt, Vector ** drawGrid, int xDivs, int yDivs)
{
dt *= timeMultiplier;
Effect::update(dt, drawGrid, xDivs, yDivs);
//GLdouble sx, sy,sz;
/*
gluProject(position.x,position.y,position.z,
nCameraPointer->modelMatrix,nCameraPointer->projMatrix,nCameraPointer->viewport,
&sx,&sy,&sz); // Find out where the light is on the screen.
centerPoint.Set(sx/(float)nCameraPointer->viewport[2],1-sy/(float)nCameraPointer->viewport[3],sz);
*/
centerPoint = position;
centerPoint -= ((core->screenCenter-originalCenter)*core->globalScale.x)/core->width;
//centerPoint = position/xDivs;
//centerPoint = drawGrid[xDivs/2][yDivs/2];
float xDist,yDist,tDist;
amplitude-=dt*rate;
currentDistance+=dt*frequency;
//float distFromCamp =(core->cameraPos - position).getLength2D();//v3dDist(nCameraPointer->pos, position);
//if (distFromCamp < 4)
float distFromCamp = 4;
float adjWaveLength = waveLength/distFromCamp;
float adjAmplitude = amplitude/distFromCamp;
if (amplitude < 0)
done=true;
for (int i = 1; i < (xDivs-1); i++)
{
for (int j = 1; j < (yDivs-1); j++)
{
/*
Vector p = getNearestPointOnLine(centerPoint, centerPoint + Vector(-200, -200), Vector(drawGrid[i][j].x*core->width, drawGrid[i][j].y*core->height));
p.x /= core->width;
p.y /= core->height;
*/
xDist = (centerPoint.x - drawGrid[i][j].x)/.75;
yDist = centerPoint.y - drawGrid[i][j].y;
/*
xDist = (p.x - drawGrid[i][j].x)/.75;
yDist = p.y - drawGrid[i][j].y;
*/
//xDist = 1;
//yDist = 2;
tDist = sqrtf(xDist*xDist+yDist*yDist);
//drawGrid[i][j].x += (rand()%100)/10000.0f;
//drawGrid[i][j].y += (rand()%100)/10000.0f;
if (tDist < currentDistance*adjWaveLength)
{
//drawGrid[i][j].x += rand()%50;
//drawGrid[i][j].y += rand()%50;
drawGrid[i][j].x += adjAmplitude*sinf(-tDist/adjWaveLength+currentDistance)*.75f;
drawGrid[i][j].y += adjAmplitude*cosf(-tDist/adjWaveLength+currentDistance);
}
}
}
}
RippleEffect::RippleEffect() : Effect()
{
time = 0;
}
void RippleEffect::update(float dt, Vector ** drawGrid, int xDivs, int yDivs)
{
/*
// whole screen roll
time += dt;
float amp = 0.01;
for (int i = 0; i < (xDivs-1); i++)
{
for (int j = 0; j < (yDivs-1); j++)
{
float offset = +i/float(xDivs) +j/float(xDivs);
//drawGrid[i][j].x += sinf(time+offset)*amp;
drawGrid[i][j].y += cosf((time+offset)*2.5f)*amp;
}
}
*/
time += dt*0.5f;
float amp = 0.002;
for (int i = 0; i < (xDivs-1); i++)
{
for (int j = 0; j < (yDivs-1); j++)
{
float offset = i/float(xDivs) + (core->screenCenter.x/float(core->width)/2) +j/float(xDivs) + (core->screenCenter.y/float(core->height)/2);
//drawGrid[i][j].x += sinf(time+offset)*amp;
drawGrid[i][j].x += sinf((time+offset)*7.5f)*(amp*0.5f);
drawGrid[i][j].y += cosf((time+offset)*7.5f)*amp;
}
}
}