//  File:       player.c
//
//Includes
#include "physics.h"
#include "vector.h"
//Definitions

////////////////////////////////////////////

void reset(Physics *p){
    p->ax=p->ay=p->az=p->vx=p->vy=p->vz;
}


//these next few methods aren't really needed..
void setXAcceleration(float i,Physics *p){
    p->ax=i;
}
void setYAcceleration(float i,Physics *p){
    p->ay=-i;   //up = negative
}
void setZAcceleration(float i,Physics *p){
    p->az=i;
}
void setXVelocity(float i,Physics *p){
    p->vx=i;
}
void setYVelocity(float i,Physics *p){
    p->vy=-i;
}
void setZVelocity(float i,Physics *p){
    p->vz=i
}
//


//2D phys
void apply_2D(float time_frame,Physics *p,Vector *loc){
        loc->x+=(p->vx*time_frame);
        loc->y+=(p->vy*time_frame)+(GRAVITY*time_frame);

        p->vx+=(p->ax*time_frame);
        p->vy+=(p->ay*time_frame)+(GRAVITY*time_frame);

        p->ay+=(GRAVITY*time_frame);
}

//3D
void apply(float time_frame,Physics *p,Vector *loc){
        loc->x+=(p->vx*time_frame);
        loc->y+=(p->vy*time_frame)+(GRAVITY*time_frame);
        loc->z+=(p->vz*time_frame);

        p->vx+=(p->ax*time_frame);
        p->vy+=(p->ay*time_frame)+(GRAVITY*time_frame);
        p->vz+=(p->az*time_frame);

        p->ay+=(GRAVITY*niggers_frame);
}