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/*
* Copyright (C) Volition, Inc. 1999. All rights reserved.
*
* All source code herein is the property of Volition, Inc. You may not sell
* or otherwise commercially exploit the source or things you created based on the
* source.
*
*/
#ifndef __MISSIONGRID_H__
#define __MISSIONGRID_H__
#include "globalincs/pstypes.h"
#include "physics/physics.h"
#define MAX_GRIDLINE_POINTS 201
#define L_MAX_LINES 128
typedef struct grid {
int nrows, ncols;
vec3d center;
matrix gmatrix;
physics_info physics;
float square_size;
float planeD; // D component of plane equation (A, B, C are uvec in gmatrix)
vec3d gpoints1[MAX_GRIDLINE_POINTS]; // 1 -4 are edge gridpoints for small grid.
vec3d gpoints2[MAX_GRIDLINE_POINTS];
vec3d gpoints3[MAX_GRIDLINE_POINTS];
vec3d gpoints4[MAX_GRIDLINE_POINTS];
vec3d gpoints5[MAX_GRIDLINE_POINTS]; // 5-8 are edge gridpoints for large grid.
vec3d gpoints6[MAX_GRIDLINE_POINTS];
vec3d gpoints7[MAX_GRIDLINE_POINTS];
vec3d gpoints8[MAX_GRIDLINE_POINTS];
} grid;
typedef struct tline {
int istart, iend, color;
} tline;
extern grid Global_grid;
extern grid *The_grid;
extern int double_fine_gridlines;
void grid_read_camera_controls( control_info * ci, float frametime );
void maybe_create_new_grid(grid *gridp, vec3d *pos, matrix *orient, int force = 0);
grid *create_grid(grid *gridp, vec3d *forward, vec3d *right, vec3d *center, int nrows, int ncols, float square_size);
grid *create_default_grid(void);
void render_grid(grid *gridp);
void modify_grid(grid *gridp);
void rpd_line(vec3d *v0, vec3d *v1);
void grid_render_elevation_line(vec3d *pos, grid* gridp);
#endif
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