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#include <World.h>
#include <cstdio>
World::World(void){
line=NULL;
lineCount=0;
toLeft=toRight=behind=infront=NULL;
root=false;
}
World::World(const float width,World *l,World *r){
unsigned int i;
double f;
lineCount=width/HLINE+11;
if((line=(struct line_t *)calloc(lineCount,sizeof(struct line_t)))==NULL){
std::cout<<"Failed to allocate memory!"<<std::endl;
abort();
}
toLeft=l;
toRight=r;
behind=infront=NULL;
root=false;
if(toLeft){
if(toLeft->toRight){
std::cout<<"There's already a world to the left!"<<std::endl;
abort();
}else{
toLeft->toRight=this;
}
}
if(toRight){
if(toRight->toLeft){
std::cout<<"There's already a world to the right!"<<std::endl;
abort();
}else{
toRight->toLeft=this;
}
}
line[0].start=(grand()%100)/100.0f-0.8f; // lazy
if(line[0].start>-0.5f)line[0].start=-0.7f;
for(i=10;i<lineCount;i+=10){
line[i].start=((double)(grand()%40+200))/1000.0f-1;
}
for(i=0;i<lineCount;i++){
if(!(i%10)||!i){
f=line[i+10].start-line[i].start;
f/=10.0f;
}else{
line[i].start=line[i-1].start+f;
}
}
}
static float hline=HLINE;
static float back=0;
void World::draw(void){
unsigned int i;
if(behind){
hline*=.5;
back+=.2;
behind->draw();
}else{
hline*=.5;
back+=.2;
}
if(root){
hline=HLINE;
back=0;
}else{
hline*=2;
back-=.2;
}
glBegin(GL_QUADS);
for(i=0;i<lineCount-10;i++){
glColor3ub(0,255,0);
glVertex2f((hline*i)-1 ,line[i].start+back);
glVertex2f((hline*i)-1+hline,line[i].start+back);
glVertex2f((hline*i)-1+hline,line[i].start-hline*2+back);
glVertex2f((hline*i)-1 ,line[i].start-hline*2+back);
glColor3ub(150,100,50);
glVertex2f((hline*i)-1 ,line[i].start-hline*2+back);
glVertex2f((hline*i)-1+hline,line[i].start-hline*2+back);
glVertex2f((hline*i)-1+hline,-1+back);
glVertex2f((hline*i)-1 ,-1+back);
}
glEnd();
}
void World::detect(vec2 *v,const float width){
unsigned int i;
// hey
for(i=0;i<lineCount-10;i++){
if(v->y<line[i].start){
if(v->x>(HLINE*i)-1&&v->x<(HLINE*i)-1+HLINE){
v->y=line[i].start;
return;
}else if(v->x+width>(HLINE*i)-1&&v->x+width<(HLINE*i)-1+HLINE){
v->y=line[i].start;
return;
}
}else if(v->y>line[i].start+HLINE/4){
v->y-=HLINE/8;
}
}
}
float World::getWidth(void){
return (lineCount-11)*HLINE;
}
void World::saveToFile(FILE *f,World *parent){
fwrite(&lineCount,sizeof(unsigned int) ,1 ,f);
fwrite(&line ,sizeof(struct line_t),lineCount,f);
if(toLeft!=NULL&&toLeft!=parent->toLeft){
toLeft->saveToFile(f,toLeft);
}
if(toRight!=NULL&&toRight!=parent->toRight){
toRight->saveToFile(f,toRight);
}
}
void World::loadFromFile(FILE *f,World *parent){
fread(&lineCount,sizeof(unsigned int) ,1 ,f);
line=(struct line_t *)malloc(lineCount*sizeof(struct line_t *));
fread(&line ,sizeof(struct line_t),lineCount,f);
if(toLeft!=NULL&&toLeft!=parent->toLeft){
toLeft->loadFromFile(f,toLeft);
}
std::cout<<toRight<<" "<<parent->toRight<<std::endl;
if(toRight!=NULL&&toRight!=parent->toRight){
puts("A");
toRight->loadFromFile(f,toRight);
}
}
void World::addLayer(void){
if(behind){
behind->addLayer();
}else{
behind=new World((lineCount-1)*HLINE+LAYER_SCALE,NULL,NULL);
behind->infront=this;
}
}
void World::setRoot(void){
root=true;
}
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