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#include <cmath>
#include "Camera.h"
#include "Constants.h"
#include "Decals.h"
#include "Fog.h"
extern float multiplier;
extern bool slomo;
extern Fog fog;
extern bool blood;
extern float fogcolorr;
extern float fogcolorg;
extern float fogcolorb;
//Functions
extern float sinefluct;
extern int environment;
extern Model gunmodels[10];
extern Camera camera;
extern float precipitationhorz;
extern float precipitationvert;
extern float precipitationdensity;
extern float snowdelay;
int Decals::MakeDecal(int atype, XYZ location, float size, XYZ normal, int poly, Model *model, XYZ move, float rotation){
int major=0;
float normalv[3];
XYZ right;
XYZ up;
XYZ nothing;
XYZ axis[3];
XYZ temp;
nothing = {};
axis[0].x=1;
axis[1].y=1;
axis[2].z=1;
normalv[0]=abs(normal.x);
normalv[1]=abs(normal.y);
normalv[2]=abs(normal.z);
if(normalv[1]>normalv[major])major=1;
if(normalv[2]>normalv[major])major=2;
if (normalv[0] == 1 || normalv[1] == 1 || normalv[2] == 1) {
if (major == 0 && normal.x > 0 || major == 1)
right = {0.0f, 0.0f, -1.0f};
else if (major == 0)
right = {0.0f, 0.0f, 1.0f};
else if (major == 0)
right = {normal.z, 0.0f, 0.0f};
} else {
CrossProduct(axis[major], normal, &right);
}
CrossProduct(normal, right, &up);
Normalise(&up);
Normalise(&right);
float count;
float count2;
float countinc=1/size;
if(countinc<.01)countinc=.01;
if(countinc>.2)countinc=.2;
float normaloffset=.02;
int good;
numpoints[howmanydecals]=0;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing - right - up) * (size/3) /*+ normal/100*/;
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = 0;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = 0;
if((move.x==0&&move.z==0&&rotation==0)||
LineFacetd(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25, model->vertex[model->Triangles[poly].vertex[0]], model->vertex[model->Triangles[poly].vertex[1]], model->vertex[model->Triangles[poly].vertex[2]],normal,&temp)
)numpoints[howmanydecals]++;
else {
good=-1;
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = 0;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = .5-count/2;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing - right - up*count) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
if(good!=-1)numpoints[howmanydecals]++;
good=-1;
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = .5-count/2;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = 0;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing - right*count - up) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
if(good!=-1)numpoints[howmanydecals]++;
if(good==-1){
good=-1;
count2=1-countinc;
while(good==-1&&count2>-1){
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = .5-count2/2;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = .5-count/2;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing - right*count2 - up*count) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
count2-=countinc;
}
if(good!=-1)numpoints[howmanydecals]++;
}
}
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing + right - up) * (size/3) /*+ normal/100*/;
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = 1;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = 0;
if((move.x==0&&move.y==0&&move.z==0&&rotation==0)||
LineFacetd(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25, model->vertex[model->Triangles[poly].vertex[0]], model->vertex[model->Triangles[poly].vertex[1]], model->vertex[model->Triangles[poly].vertex[2]],normal,&temp)
)numpoints[howmanydecals]++;
else {
good=-1;
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = .5+count/2;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = 0;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing + right*count - up) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
if(good!=-1)numpoints[howmanydecals]++;
good=-1;
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = 1;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = .5-count/2;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing + right - up*count) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
if(good!=-1)numpoints[howmanydecals]++;
if(good==-1){
good=-1;
count2=1-countinc;
while(good==-1&&count2>-1){
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = .5+count2/2;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = .5-count/2;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing + right*count2 - up*count) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
count2-=countinc;
}
if(good!=-1)numpoints[howmanydecals]++;
}
}
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing + right + up) * (size/3) /*+ normal/100*/;
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = 1;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = 1;
if((move.x==0&&move.y==0&&move.z==0&&rotation==0)||
LineFacetd(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25, model->vertex[model->Triangles[poly].vertex[0]], model->vertex[model->Triangles[poly].vertex[1]], model->vertex[model->Triangles[poly].vertex[2]],normal,&temp)
)numpoints[howmanydecals]++;
else {
good=-1;
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = 1;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = .5+count/2;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing + right + up*count) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
if(good!=-1)numpoints[howmanydecals]++;
good=-1;
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = .5+count/2;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = 1;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing + right*count + up) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
if(good!=-1)numpoints[howmanydecals]++;
if(good==-1){
good=-1;
count2=1-countinc;
while(good==-1&&count2>-1){
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = .5+count2/2;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = .5+count/2;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing + right*count2 + up*count) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
count2-=countinc;
}
if(good!=-1)numpoints[howmanydecals]++;
}
}
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing - right + up) * (size/3) /*+ normal/100*/;
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = 0;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = 1;
if((move.x==0&&move.y==0&&move.z==0&&rotation==0)||
LineFacetd(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25, model->vertex[model->Triangles[poly].vertex[0]], model->vertex[model->Triangles[poly].vertex[1]], model->vertex[model->Triangles[poly].vertex[2]],normal,&temp)
)numpoints[howmanydecals]++;
else {
good=-1;
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = .5-count/2;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = 1;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing - right*count + up) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
if(good!=-1)numpoints[howmanydecals]++;
good=-1;
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = 0;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = .5+count/2;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing - right + up*count) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
if(good!=-1)numpoints[howmanydecals]++;
if(good==-1){
good=-1;
count2=1-countinc;
while(good==-1&&count2>-1){
count=1-countinc;
while(good==-1&&count>-1){
texcoordsx[howmanydecals*8+numpoints[howmanydecals]] = .5-count2/2;
texcoordsy[howmanydecals*8+numpoints[howmanydecals]] = .5+count/2;
points[howmanydecals*8+numpoints[howmanydecals]] = location + (nothing - right*count2 + up*count) * (size/3);
count-=countinc;
good=model->LineCheck2(points[howmanydecals*8+numpoints[howmanydecals]]+normal/25,points[howmanydecals*8+numpoints[howmanydecals]]-normal/25,&temp,move,rotation);
}
count2-=countinc;
}
if(good!=-1)numpoints[howmanydecals]++;
}
}
for(int i=0;i<numpoints[howmanydecals];i++){
points[howmanydecals*8+i] += normal*normaloffset;
}
type[howmanydecals]=atype;
alivetime[howmanydecals]=0;
if(howmanydecals<maxdecals){howmanydecals++;}
return 0;
}
int Decals::DeleteDecal(int which){
if(which>=0){
numpoints[which]=numpoints[howmanydecals-1];
alivetime[which]=alivetime[howmanydecals-1];
type[which]=type[howmanydecals-1];
for(int i=0;i<numpoints[which];i++){
points[which*8+i] = points[howmanydecals*8-8+i];
texcoordsx[which*8+i] = texcoordsx[howmanydecals*8-8+i];
texcoordsy[which*8+i] = texcoordsy[howmanydecals*8-8+i];
}
if(howmanydecals>0){howmanydecals--;}
}
return 0;
}
void Decals::DoStuff()
{
for(int i=0;i<howmanydecals;i++){
alivetime[i]+=multiplier;
if(alivetime[i]>10&&(type[i]==bullethole||type[i]==crater))DeleteDecal(i);
if(alivetime[i]>20&&(type[i]==bloodpool))DeleteDecal(i);
}
}
void Decals::draw()
{
glAlphaFunc(GL_GREATER, 0.01);
float bloodpoolspeed=1;
glDepthFunc(GL_LEQUAL);
glEnable(GL_BLEND);
glEnable(GL_CULL_FACE);
glEnable(GL_TEXTURE_2D);
glEnable(GL_LIGHTING);
glDepthMask(0);
glAlphaFunc(GL_GREATER, 0.01);
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_POLYGON_OFFSET_FILL);
for(int i=0;i<howmanydecals;i++){
if(type[i]==bullethole)glBindTexture(GL_TEXTURE_2D, bulletholetextureptr);
if(type[i]==crater)glBindTexture(GL_TEXTURE_2D, cratertextureptr);
if(type[i]!=bloodpool)glColor4f(1,1,1,10-alivetime[i]);
if(type[i]==bloodpool&&alivetime[i]<bloodpoolspeed*.2)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[0]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*.2&&alivetime[i]<bloodpoolspeed*.4)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[1]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*.4&&alivetime[i]<bloodpoolspeed*.6)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[2]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*.6&&alivetime[i]<bloodpoolspeed*.8)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[3]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*.8&&alivetime[i]<bloodpoolspeed*1)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[4]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*1&&alivetime[i]<bloodpoolspeed*1.2)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[5]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*1.2&&alivetime[i]<bloodpoolspeed*1.4)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[6]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*1.4&&alivetime[i]<bloodpoolspeed*1.6)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[7]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*1.6&&alivetime[i]<bloodpoolspeed*1.8)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[8]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*1.8&&alivetime[i]<bloodpoolspeed*2.0)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[9]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*2.0)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[10]);
if(type[i]==bloodpool&&alivetime[i]<bloodpoolspeed*2.0)glColor4f(1,1,1,1.5-(alivetime[i]*5/bloodpoolspeed-(int)(alivetime[i]*5/bloodpoolspeed)));
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*2.0)glColor4f(1,1,1,20-alivetime[i]);
glPushMatrix();
glBegin(GL_TRIANGLE_FAN);
for(int j=0;j<numpoints[i];j++){
glTexCoord2f(texcoordsx[i*8+j], texcoordsy[i*8+j]); glVertex3f(points[i*8+j].x,points[i*8+j].y,points[i*8+j].z);
}
glEnd();
glPopMatrix();
if(type[i]==bloodpool&&alivetime[i]<bloodpoolspeed*2.0){
if(type[i]==bloodpool&&alivetime[i]<bloodpoolspeed*.2)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[1]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*.2&&alivetime[i]<bloodpoolspeed*.4)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[2]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*.4&&alivetime[i]<bloodpoolspeed*.6)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[3]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*.6&&alivetime[i]<bloodpoolspeed*.8)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[4]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*.8&&alivetime[i]<bloodpoolspeed*1)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[5]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*1&&alivetime[i]<bloodpoolspeed*1.2)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[6]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*1.2&&alivetime[i]<bloodpoolspeed*1.4)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[7]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*1.4&&alivetime[i]<bloodpoolspeed*1.6)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[8]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*1.6&&alivetime[i]<bloodpoolspeed*1.8)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[9]);
if(type[i]==bloodpool&&alivetime[i]>=bloodpoolspeed*1.8&&alivetime[i]<bloodpoolspeed*2.0)glBindTexture(GL_TEXTURE_2D, bloodtextureptr[10]);
if(type[i]==bloodpool)glColor4f(1,1,1,alivetime[i]*5/bloodpoolspeed-(int)(alivetime[i]*5/bloodpoolspeed));
glPushMatrix();
glBegin(GL_TRIANGLE_FAN);
for(int j=0;j<numpoints[i];j++){
glTexCoord2f(texcoordsx[i*8+j], texcoordsy[i*8+j]); glVertex3f(points[i*8+j].x,points[i*8+j].y,points[i*8+j].z);
}
glEnd();
glPopMatrix();
}
}
glDepthMask(1);
glDisable(GL_TEXTURE_2D);
glColor4f(1,1,1,1);
glEnable(GL_CULL_FACE);
glDisable(GL_POLYGON_OFFSET_FILL);
glDepthFunc(GL_LEQUAL);
}
Decals::~Decals()
{
const GLuint holes[] {bulletholetextureptr, cratertextureptr};
glDeleteTextures(2, holes);
glDeleteTextures(11, bloodtextureptr);
}
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