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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.
*
*/
#include "globalincs/pstypes.h"
#include "physics/physics.h"
#define BRIEFING_LOOKAT_POINT_ID 99999
extern int Aa_gridlines; //!< Bool. If nonzero, draw anti-aliased gridlines
extern int Editing_mode; //!< Enum. The edit mode. 0 = Select; 1 = Select and Move; 2 = Select and Rotate
extern int Control_mode; //!< Bool. Control mode. 0 = Camera/Viewpoint control. 1 = Object control
extern int Show_grid; //!< Bool. If nonzero, draw the grid
extern int Show_grid_positions; //!< Bool. If nonzero, draw an elevation line from each object to the grid.
extern int Show_coordinates; //!< Bool. If nonzero, draw the coordinates of each object on their label
extern int Show_outlines; //!< Bool. If nonzero, draw each object's mesh. If models are shown, highlight them in white.
extern bool Draw_outlines_on_selected_ships; // If a ship is selected, draw mesh lines
extern bool Draw_outline_at_warpin_position; // Project an outline at the place where the ship will arrive after warping in
extern bool Always_save_display_names; // When saving a mission, always write display names to the mission file even if the display name is not set.
// But ships in wings are excepted, because a display name will cause a ship to have the same name in every wave.
// In the future, a display name feature could be added to the wing dialog to handle this case.
extern bool Error_checker_checks_potential_issues; // Error checker checks not only outright errors but also potential issues
extern bool Error_checker_checks_potential_issues_once; // Same as above, but only once, and independent of the selected option
extern int Show_stars; //!< Bool. If nonzero, draw the starfield, nebulas, and suns. Might also handle skyboxes
extern int Single_axis_constraint; //!< Bool. If nonzero, constrain movement to one axis
extern int Show_distances; //!< Bool. If nonzero, draw lines between each object and display their distance on the middle of each line
extern int Universal_heading; //!< Bool. Unknown.
extern int Flying_controls_mode; //!< Bool. Unknown.
extern int Group_rotate; //!< Bool. If nonzero, each object rotates around the leader. If zero. rotate
extern int Show_horizon; //!< Bool. If nonzero, draw a line representing the horizon (XZ plane)
extern int Lookat_mode; //!< Bool. Unknown.
extern int True_rw; //!< Unsigned. The width of the render area
extern int True_rh; //!< Unsigned. The height of the render area
extern int Fixed_briefing_size; //!< Bool. If nonzero then expand the briefing preview as much as we can, maintaining the aspect ratio.
extern vec3d Constraint; //!< Which axis (or axes) we can move/rotate on
extern vec3d Anticonstraint; //!< Which axis (or axes) we can't move/rotate on
extern physics_info view_physics; //!< Physics info of the camera/controlled object
extern vec3d view_pos;
extern vec3d eye_pos;
extern matrix view_orient;
extern matrix eye_orient;
/**
* @brief Initializes the renderer.
*
* @details Called every time a new mission is created (and erasing old mission from memory). New mission should be
* blank at this point.
*/
void fred_render_init();
/**
* @brief Handler for Mouse movement
*
* @param[in] btn Bitfield of mousebuttons
* @param[in] mdx X delta
* @param[in] mdy Y delta
*/
void move_mouse(int btn, int mdx, int mdy);
/**
* @brief Handler for OnIdle. Does a game frame within the editor
*/
void game_do_frame();
/**
* @brief Handler for OnPaint. Renders the game frame
*/
void render_frame();
/**
* @brief Reset the angles of the controlled object to be "wings level" with the grid, either the camera or the selection
*/
void level_controlled();
/**
* @brief Similar to level_controlled, aligns the controlled object to the closest axis
*/
void verticalize_controlled();
/**
* @brief Finds the closest object or waypoint under the mouse cursor and returns its index.
*
* @param[in] cx X coordinate on the viewport
* @param[in] cy Y coordinate on the viewport
*
* @return Object index number of the object, if any. or
* @return -1 if no object found
*/
int select_object(int cx, int cy);
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