editor/curves.c File Reference

#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <stdarg.h>
#include <conio.h>
#include <dos.h>
#include "inferno.h"
#include "mono.h"
#include "vecmat.h"
#include "gr.h"
#include "key.h"
#include "editor.h"
#include "gameseg.h"


Defines
#define	ONE_OVER_SQRT2 F1_0 * 0.707106781
#define	CURVE_RIGHT 1
#define	CURVE_UP 2
#define	MAGIC_NUM 0.707*F1_0
Functions
void	generate_banked_curve (fix maxscale, vms_equation coeffs)
void	create_curve (vms_vector p1, vms_vector p4, vms_vector r1, vms_vector r4, vms_equation *coeffs)
vms_vector	evaluate_curve (vms_equation *coeffs, int degree, fix t)
fix	curve_dist (vms_equation coeffs, int degree, fix t0, vms_vector p0, fix dist)
void	curve_dir (vms_equation coeffs, int degree, fix t0, vms_vector dir)
void	plot_parametric (vms_equation *coeffs, fix min_t, fix max_t, fix del_t)
vms_vector *	vm_vec_interp (vms_vector result, vms_vector v0, vms_vector *v1, fix scale)
int	generate_curve (fix r1scale, fix r4scale)
void	delete_curve ()
Variables
segment *	OriginalSeg
segment *	OriginalMarkedSeg
int	OriginalSide
int	OriginalMarkedSide
segment *	CurveSegs [MAX_SEGMENTS]
int	CurveNumSegs
const fix	Mh [4][4]
vms_vector	p1
vms_vector	p4
vms_vector	r1
vms_vector	r4
vms_vector	r4t
vms_vector	r1save

Define Documentation

#define CURVE_RIGHT 1

#define CURVE_UP 2

#define MAGIC_NUM 0.707*F1_0

#define ONE_OVER_SQRT2 F1_0 * 0.707106781

Function Documentation

void create_curve ( vms_vector * p1,

vms_vector * p4,

vms_vector * r1,

vms_vector * r4,

vms_equation * coeffs

)

void curve_dir ( vms_equation * coeffs,

int degree,

fix t0,

vms_vector * dir

)

fix curve_dist ( vms_equation * coeffs,

int degree,

fix t0,

vms_vector * p0,

fix dist

)

void delete_curve ( )

vms_vector evaluate_curve ( vms_equation * coeffs,

int degree,

fix t

)

void generate_banked_curve ( fix maxscale,

vms_equation coeffs

)

int generate_curve ( fix r1scale,

fix r4scale

)

void plot_parametric ( vms_equation * coeffs,

fix min_t,

fix max_t,

fix del_t

)

vms_vector* vm_vec_interp ( vms_vector * result,

vms_vector * v0,

vms_vector * v1,

fix scale

)

Variable Documentation

int CurveNumSegs

segment* CurveSegs[MAX_SEGMENTS]

const fix Mh[4][4]

Initial value:
{ { 2*F1_0, -2*F1_0, 1*F1_0, 1*F1_0 }, {-3*F1_0, 3*F1_0, -2*F1_0, -1*F1_0 }, { 0*F1_0, 0*F1_0, 1*F1_0, 0*F1_0 }, { 1*F1_0, 0*F1_0, 0*F1_0, 0*F1_0 } }