diff options
Diffstat (limited to 'extensions/smanim.cpp')
| -rw-r--r-- | extensions/smanim.cpp | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/extensions/smanim.cpp b/extensions/smanim.cpp new file mode 100644 index 0000000..d57292b --- /dev/null +++ b/extensions/smanim.cpp @@ -0,0 +1,196 @@ +// -*- C++ -*- +/* + * Simple MultimEdia LiTerator(SMELT) + * by Chris Xiong 2015 + * Animation implementation + * + * WARNING: This library is in development and interfaces would be very + * unstable. + * This library is developed for the BLR series games. + */ +#include "smanim.hpp" +#include <cstdio> +#include <cstring> +#define METAWARN(s) printf("metafile warning at line %d: %s\n",lc,s) +SMELT* smAnmFile::sm=NULL; +void smAnmFile::parseMeta(const char* meta,DWORD size) +{ + const char* cp=meta; + bool inAnim=false; + int lc=0; + smAnmInfo cur; + while(cp-meta<=size) + { + int cc=0; + for(;*(cp+cc)!='\n'&&(cp+cc-meta<=size);++cc); + char line[65]; + strncpy(line,cp,cc+1);line[cc]='\0'; + cp+=cc+1;++lc; + if(inAnim&&line[0]!='F'&&line[0]!='E'){METAWARN("Only instruction F is allowed between A and E.");continue;} + if(line[0]=='E') + { + if(!inAnim)METAWARN("No animation to end..."); + else{inAnim=false;am[std::string(cur.name)]=cur;} + } + if(line[0]=='A') + { + if(inAnim)METAWARN("Already in an animation definition..."); + else + { + inAnim=true; + int cn=0;while(line[cn+2]!=',')++cn; + cur.name=new char[cn];strncpy(cur.name,line+2,cn); + cur.name[cn-1]='\0';cur.mode=0;cur.fc=0; + if(!strcmp(line+3+cn,"loop"))cur.mode=1; + if(!strcmp(line+3+cn,"bidi"))cur.mode=2; + } + } + if(line[0]=='F') + { + if(!inAnim)METAWARN("Cannot define frames outside animation..."); + else + { + int cn=0;while(line[cn+2]!=',')++cn; + cur.frames[cur.fc].path=new char[cn]; + cur.frames[cur.fc].name=NULL; + strncpy(cur.frames[cur.fc].path,line+2,cn); + cur.frames[cur.fc].path[cn-1]='\0'; + sscanf(line+3+cn,"%f,%f,%f,%f,%d",&cur.frames[cur.fc].rect.x, + &cur.frames[cur.fc].rect.y,&cur.frames[cur.fc].rect.w,&cur.frames[cur.fc].rect.h, + &cur.framedur[cur.fc]); + if(xm.find(std::string(cur.frames[cur.fc].path))!=xm.end()) + cur.frames[cur.fc].tex=xm[std::string(cur.frames[cur.fc].path)]; + else + { + char *texct=anm.getFilePtr(cur.frames[cur.fc].path); + DWORD texsz=anm.getFileSize(cur.frames[cur.fc].path); + cur.frames[cur.fc].tex=xm[std::string(cur.frames[cur.fc].path)] + =sm->smTextureLoadFromMemory(texct,texsz); + anm.releaseFilePtr(cur.frames[cur.fc].path); + } + ++cur.fc; + } + } + if(line[0]=='S') + { + smTexInfo t; + int cn=0;while(line[cn+2]!=',')++cn; + t.name=new char[cn+1];strncpy(t.name,line+2,cn+1); + t.name[cn]='\0'; + int cn2=0;while(line[cn+3+cn2]!=',')++cn2; + t.path=new char[cn2+1];strncpy(t.path,line+3+cn,cn2+1); + t.path[cn2]='\0'; + sscanf(line+4+cn+cn2,"%f,%f,%f,%f",&t.rect.x,&t.rect.y,&t.rect.w,&t.rect.h); + if(xm.find(std::string(t.path))!=xm.end()) + t.tex=xm[std::string(t.path)]; + else + { + char *texct=anm.getFilePtr(t.path); + DWORD texsz=anm.getFileSize(t.path); + t.tex=xm[std::string(t.path)] + =sm->smTextureLoadFromMemory(texct,texsz); + anm.releaseFilePtr(t.path); + } + tm[std::string(t.name)]=t; + } + if(line[0]=='I') + { + char* mptr=anm.getFilePtr(line+2); + DWORD msez=anm.getFileSize(line+2); + parseMeta(mptr,msez); + anm.releaseFilePtr(line+2); + } + } +} +bool smAnmFile::loadAnmFromMemory(const char* ptr,DWORD size) +{ + sm=smGetInterface(SMELT_APILEVEL); + anm.openDtpFromMemory(ptr,size); + xm.clear();tm.clear();am.clear(); + char* mptr=anm.getFilePtr("content.meta"); + DWORD msez=anm.getFileSize("content.meta"); + parseMeta(mptr,msez); + anm.releaseFilePtr("content.meta"); +} +void smAnmFile::close() +{ + anm.closeDtp(); + for(std::map<std::string,smTexInfo>::iterator i=tm.begin();i!=tm.end();++i) + {delete i->second.name;delete i->second.path;} + tm.clear(); + for(std::map<std::string,smAnmInfo>::iterator i=am.begin();i!=am.end();++i) + { + delete i->second.name; + for(int j=0;j<i->second.fc;++j) + delete i->second.frames[j].path; + } + am.clear(); + for(std::map<std::string,SMTEX>::iterator i=xm.begin();i!=xm.end();++i) + sm->smTextureFree(i->second); + xm.clear(); + sm->smRelease(); +} +smTexInfo* smAnmFile::getTextureInfo(const char* name) +{return &tm.at(name);} +smAnmInfo* smAnmFile::getAnimationInfo(const char* name) +{return &am.at(name);} + +smAnimation2D::smAnimation2D(smAnmInfo a):smEntity2D(a.frames[0].tex,a.frames[0].rect) +{ + ai=a;cf=mf=r=0; + for(int i=0;i<ai.fc;++i)mf+=ai.framedur[i]; +} +void smAnimation2D::updateAnim(int f) +{ + if(ai.mode==0){cf+=f;if(cf>mf)cf=mf;} + if(ai.mode==1){cf+=f;if(cf>mf)cf-=mf;} + if(ai.mode==2) + { + if(r){cf-=f;if(cf<0)r=0,cf=-cf;} + else{cf+=f;if(cf>mf)r=1,cf=2*mf-cf;} + } + int l=0,r=ai.framedur[0],ff=0; + for(int i=0;i<ai.fc;++i) + { + if(cf>l&&cf<=r){ff=i;break;} + l+=ai.framedur[i];r+=ai.framedur[i+1]; + } + setTexture(ai.frames[ff].tex); + setTextureRectv(ai.frames[ff].rect); +} +void smAnimation2D::resetAnim() +{ + cf=mf=r=0; + setTexture(ai.frames[0].tex); + setTextureRectv(ai.frames[0].rect); +} + +smAnimation3D::smAnimation3D(smAnmInfo a):smEntity3D(a.frames[0].tex,a.frames[0].rect) +{ + ai=a;cf=mf=r=0; + for(int i=0;i<ai.fc;++i)mf+=ai.framedur[i]; +} +void smAnimation3D::updateAnim(int f) +{ + if(ai.mode==0){cf+=f;if(cf>mf)cf=mf;} + if(ai.mode==1){cf+=f;if(cf>mf)cf-=mf;} + if(ai.mode==2) + { + if(r){cf-=f;if(cf<0)r=0,cf=-cf;} + else{cf+=f;if(cf>mf)r=1,cf=2*mf-cf;} + } + int l=0,r=ai.framedur[0],ff=0; + for(int i=0;i<ai.fc;++i) + { + if(cf>l&&cf<=r){ff=i;break;} + l+=ai.framedur[i];r+=ai.framedur[i+1]; + } + setTexture(ai.frames[ff].tex); + setTextureRectv(ai.frames[ff].rect); +} +void smAnimation3D::resetAnim() +{ + cf=mf=r=0; + setTexture(ai.frames[0].tex); + setTextureRectv(ai.frames[0].rect); +} |