graffiti.c File Reference

Detailed Description

Wall graffiti support for levels.

Purpose:: Module for handling wall graffities in levels.

Comment:: None.

Author:: Jon Skeet, Tomasz Lis

Date:: 14 Oct 1997 - 22 Jul 2008

Copying and copyrights:: This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

Definition in file graffiti.c.

#include "graffiti.h"
#include "globals.h"
#include "lev_data.h"
#include "obj_column_def.h"
#include "obj_things.h"
#include "obj_slabs.h"
#include "obj_column.h"

Go to the source code of this file.

Functions

short level_free_graffiti (struct LEVEL *lvl)

Frees the whole graffiti structure.

int graffiti_idx (struct LEVEL *lvl, int tx, int ty)

Searches for graffiti at given tile and returns its index.

int graffiti_idx_next (struct LEVEL *lvl, int tx, int ty, int prev_idx)

Searches for next graffiti at given tile and returns its index.

char * get_graffiti_text (struct LEVEL *lvl, unsigned int num)

Gets text message of graffiti with given index.

void graffiti_del (struct LEVEL *lvl, unsigned int num)

Deletes graffiti with given index.

struct DK_GRAFFITI * create_graffiti (int tx, int ty, char *text, const struct LEVEL *lvl, int orient)

Creates a new graffiti and fills its all properties.

int graffiti_add_obj (struct LEVEL *lvl, struct DK_GRAFFITI *graf)

Adds graffiti object to level data, without filling the graffiti nor updating slabs.

short set_graffiti_orientation (struct DK_GRAFFITI *graf, const struct LEVEL *lvl, unsigned short orient)

Sets orientation of given graffiti, updating its dimensions and height.

int set_graffiti_height (struct DK_GRAFFITI *graf, int height)

Sets new height to the graffiti.

int graffiti_add (struct LEVEL *lvl, int tx, int ty, int height, char *text, int font, unsigned short orient, unsigned short cube)

Creates and adds graffiti to the level.

void graffiti_update_columns (struct LEVEL *lvl, int graf_idx)

Updates CLM entries to make the graffiti visible.

void graffiti_clear_from_columns (struct LEVEL *lvl, int graf_idx)

Updates CLM entries, removing graffiti from them.

unsigned int get_graffiti_count (struct LEVEL *lvl)

Gets amount of graffitties in the level.

struct DK_GRAFFITI * get_graffiti (struct LEVEL *lvl, int graf_idx)

Gets the graffiti structure for given graffiti index.

int compute_graffiti_subtl_length (unsigned short font, char *text)

Computes graffiti text length in subtiles, for given font.

int get_graffiti_cube_height (unsigned short font, char *text)

Returns graffiti text height in subtiles, for given font.

const unsigned char * get_font_char (unsigned short font, char chr)

Returns graffiti character for given font.

int place_graffiti_on_slab (struct COLUMN_REC *clm_recs[9], struct LEVEL *lvl, int tx, int ty)

Draws graffiti on given columns array.

short place_graffiti_on_clm_top (struct COLUMN_REC *clm_rec, unsigned short font, unsigned short height, char *text, int graf_subtl, int graf_subtl_h, unsigned short cube)

Places graffiti on top of given column.

short place_graffiti_on_column (struct COLUMN_REC *clm_rec, unsigned short font, unsigned short height, char *text, int graf_subtl, unsigned short cube)

Places graffiti on side of given column.

Function Documentation

int compute_graffiti_subtl_length	(	unsigned short	font,
		char *	text
	)

Computes graffiti text length in subtiles, for given font.

Parameters:

	font	Graffiti font, from GRAFFITI_FONT enumeration.
	text	The graffiti message text.

Returns:: Returns length of the graffiti, in subtiles.

Definition at line 434 of file graffiti.c.

Referenced by place_graffiti_on_slab().

struct DK_GRAFFITI* create_graffiti	(	int	tx,
		int	ty,
		char *	text,
		const struct LEVEL *	lvl,
		int	orient
	)			`[read]`

Creates a new graffiti and fills its all properties.

The graffiti is not added to LEVEL structure.

Parameters:

	tx	Map tile coordinate, in range 0-MAP_MAXINDEX_X.
	ty	Map tile coordinate, in range 0-MAP_MAXINDEX_Y.
	text	The message text which is duplicated into graffiti.
	lvl	Pointer to the LEVEL structure.
	orient	Graffiti orientation, from GRAFFITI_ORIENT enumeration.

Returns:: Returns the new graffiti, or NULL on error.

Definition at line 138 of file graffiti.c.

Referenced by graffiti_add().

const unsigned char* get_font_char	(	unsigned short	font,
		char	chr
	)

Returns graffiti character for given font.

Parameters:

	font	Graffiti font, from GRAFFITI_FONT enumeration.
	chr	The text character.

Returns:: Returns font character to use for making graffiti visible.

Definition at line 490 of file graffiti.c.

Referenced by compute_graffiti_subtl_length(), place_graffiti_on_clm_top(), place_graffiti_on_column(), and set_graffiti_orientation().

struct DK_GRAFFITI* get_graffiti	(	struct LEVEL *	lvl,
		int	graf_idx
	)			`[read]`

Gets the graffiti structure for given graffiti index.

Parameters:

	lvl	Pointer to the LEVEL structure.
	graf_idx	Graffiti index.

Returns:: Returns DK_GRAFFITI structure pointer, NULL on error.

Definition at line 422 of file graffiti.c.

Referenced by graffiti_clear_from_columns(), graffiti_update_columns(), and place_graffiti_on_slab().

unsigned int get_graffiti_count ( struct LEVEL * lvl )

Gets amount of graffitties in the level.

Parameters:

lvl

Pointer to the LEVEL structure.

Returns:: Returns graffities count for the level.

Definition at line 410 of file graffiti.c.

Referenced by get_level_objstats_textln().

int get_graffiti_cube_height	(	unsigned short	font,
		char *	text
	)

Returns graffiti text height in subtiles, for given font.

Parameters:

	font	Graffiti font, from GRAFFITI_FONT enumeration.
	text	The graffiti message text.

Returns:: Returns graffiti height, in cubes (or subtiles).

Definition at line 469 of file graffiti.c.

Referenced by place_graffiti_on_slab(), set_graffiti_height(), and set_graffiti_orientation().

char* get_graffiti_text	(	struct LEVEL *	lvl,
		unsigned int	num
	)

Gets text message of graffiti with given index.

Parameters:

	lvl	Pointer to the LEVEL structure.
	num	Graffiti index.

Returns:: Returns graffiti message string, or empty string ("") on error.

Definition at line 90 of file graffiti.c.

int graffiti_add	(	struct LEVEL *	lvl,
		int	tx,
		int	ty,
		int	height,
		char *	text,
		int	font,
		unsigned short	orient,
		unsigned short	cube
	)

Creates and adds graffiti to the level.

Parameters:

	lvl	Pointer to the LEVEL structure.
	tx	Map tile coordinate, in range 0-MAP_MAXINDEX_X.
	ty	Map tile coordinate, in range 0-MAP_MAXINDEX_Y.
	height	Graffiti height.
	text	The graffiti message text.
	font	Graffiti font, from GRAFFITI_FONT enumeration.
	orient	Graffiti orientation, from GRAFFITI_ORIENT enumeration.
	cube	Index of the cube used to draw graffiti text.

Returns:: Returns the index at which graffiti is added, or -1 on error.

Definition at line 346 of file graffiti.c.

Referenced by execute_adikted_command().

int graffiti_add_obj	(	struct LEVEL *	lvl,
		struct DK_GRAFFITI *	graf
	)

Adds graffiti object to level data, without filling the graffiti nor updating slabs.

Parameters:

	lvl	Pointer to the LEVEL structure.
	graf	Pointer to the DK_GRAFFITI structure to add.

Returns:: Returns the index at which graffiti is added, or -1 on error.

Definition at line 167 of file graffiti.c.

Referenced by graffiti_add().

void graffiti_clear_from_columns	(	struct LEVEL *	lvl,
		int	graf_idx
	)

Updates CLM entries, removing graffiti from them.

This makes the graffiti invisuble and ready to be deleted.

Parameters:

	lvl	Pointer to the LEVEL structure.
	graf_idx	Graffiti index.

Definition at line 384 of file graffiti.c.

void graffiti_del	(	struct LEVEL *	lvl,
		unsigned int	num
	)

Deletes graffiti with given index.

The graffiti is removed from structure, and its memory is freed. Level graphics is not updated by this function.

Parameters:

	lvl	Pointer to the LEVEL structure.
	num	Graffiti index.

Definition at line 104 of file graffiti.c.

int graffiti_idx	(	struct LEVEL *	lvl,
		int	tx,
		int	ty
	)

Searches for graffiti at given tile and returns its index.

Parameters:

	lvl	Pointer to the LEVEL structure.
	tx,ty	Map tile coordinates.

Returns:: Returns index of first graffiti at given tile, or -1 if not found.

Definition at line 51 of file graffiti.c.

Referenced by slab_has_custom_columns(), and update_custom_columns_for_slab().

int graffiti_idx_next	(	struct LEVEL *	lvl,
		int	tx,
		int	ty,
		int	prev_idx
	)

Searches for next graffiti at given tile and returns its index.

Parameters:

	lvl	Pointer to the LEVEL structure.
	tx	Map tile coordinate, in range 0-MAP_MAXINDEX_X.
	ty	Map tile coordinate, in range 0-MAP_MAXINDEX_Y.
	prev_idx	index if the graffiti previously found. To get first graffiti, prev_idx must be -1.

Returns:: Returns index of next graffiti at given tile, the one after prev_idx; or -1 if not found.

Definition at line 66 of file graffiti.c.

Referenced by graffiti_idx(), and place_graffiti_on_slab().

void graffiti_update_columns	(	struct LEVEL *	lvl,
		int	graf_idx
	)

Updates CLM entries to make the graffiti visible.

Parameters:

	lvl	Pointer to the LEVEL structure.
	graf_idx	Graffiti index.

Definition at line 369 of file graffiti.c.

short level_free_graffiti ( struct LEVEL * lvl )

Frees the whole graffiti structure.

Parameters:

lvl

Pointer to the LEVEL structure.

Returns:: Returns ERR_NONE on success, error code on failure.

Definition at line 32 of file graffiti.c.

Referenced by level_free().

short place_graffiti_on_clm_top	(	struct COLUMN_REC *	clm_rec,
		unsigned short	font,
		unsigned short	height,
		char *	text,
		int	graf_subtl,
		int	graf_subtl_h,
		unsigned short	cube
	)

Places graffiti on top of given column.

Parameters:

	clm_rec	Comumn entry struct pointer.
	font	Graffiti font, from GRAFFITI_FONT enumeration.
	height	Graffiti height.
	text	The graffiti message text.
	graf_subtl	The subtile at which we're placing.
	graf_subtl_h	The subtile at which we're placing, on height.
	cube	Index of the cube to place as graffiti.

Returns:: Returns true on success.

Definition at line 605 of file graffiti.c.

Referenced by place_graffiti_on_slab().

short place_graffiti_on_column	(	struct COLUMN_REC *	clm_rec,
		unsigned short	font,
		unsigned short	height,
		char *	text,
		int	graf_subtl,
		unsigned short	cube
	)

Places graffiti on side of given column.

Parameters:

	clm_rec	Comumn entry struct pointer.
	font	Graffiti font, from GRAFFITI_FONT enumeration.
	height	Graffiti height.
	text	The graffiti message text.
	graf_subtl	The subtile at which we're placing.
	cube	Index of the cube to place as graffiti.

Returns:: Returns true on success.

Definition at line 654 of file graffiti.c.

Referenced by place_graffiti_on_slab().

int place_graffiti_on_slab	(	struct COLUMN_REC *	clm_recs[9],
		struct LEVEL *	lvl,
		int	tx,
		int	ty
	)

Draws graffiti on given columns array.

Parameters:

	clm_recs	Comumn entries array.
	lvl	Pointer to the LEVEL structure.
	tx	Map tile coordinate, in range 0-MAP_MAXINDEX_X.
	ty	Map tile coordinate, in range 0-MAP_MAXINDEX_Y.

Returns:: Returns num of changed entries.

Definition at line 511 of file graffiti.c.

Referenced by update_custom_columns_for_slab().

int set_graffiti_height	(	struct DK_GRAFFITI *	graf,
		int	height
	)

Sets new height to the graffiti.

Makes sure the parameter will be in appropiate range.

Parameters:

	graf	Pointer to the DK_GRAFFITI structure to update.
	height	New graffiti height.

Returns:: Returns the new height set for graffiti.

Definition at line 308 of file graffiti.c.

short set_graffiti_orientation	(	struct DK_GRAFFITI *	graf,
		const struct LEVEL *	lvl,
		unsigned short	orient
	)

Sets orientation of given graffiti, updating its dimensions and height.

Graffiti don't have to be in the LEVEL structure, but must have tx,ty,font and text properties set.

Parameters:

	graf	Pointer to the DK_GRAFFITI structure to update.
	lvl	Pointer to the LEVEL structure.
	orient	New graffiti orientation, from GRAFFITI_ORIENT enumeration.

Returns:: Returns ERR_NONE on success, error code on failure.

Definition at line 193 of file graffiti.c.

Referenced by create_graffiti().


Functions
short	level_free_graffiti (struct LEVEL *lvl)
	Frees the whole graffiti structure.
int	graffiti_idx (struct LEVEL *lvl, int tx, int ty)
	Searches for graffiti at given tile and returns its index.
int	graffiti_idx_next (struct LEVEL *lvl, int tx, int ty, int prev_idx)
	Searches for next graffiti at given tile and returns its index.
char *	get_graffiti_text (struct LEVEL *lvl, unsigned int num)
	Gets text message of graffiti with given index.
void	graffiti_del (struct LEVEL *lvl, unsigned int num)
	Deletes graffiti with given index.
struct DK_GRAFFITI *	create_graffiti (int tx, int ty, char text, const struct LEVEL lvl, int orient)
	Creates a new graffiti and fills its all properties.
int	graffiti_add_obj (struct LEVEL lvl, struct DK_GRAFFITI graf)
	Adds graffiti object to level data, without filling the graffiti nor updating slabs.
short	set_graffiti_orientation (struct DK_GRAFFITI graf, const struct LEVEL lvl, unsigned short orient)
	Sets orientation of given graffiti, updating its dimensions and height.
int	set_graffiti_height (struct DK_GRAFFITI *graf, int height)
	Sets new height to the graffiti.
int	graffiti_add (struct LEVEL lvl, int tx, int ty, int height, char text, int font, unsigned short orient, unsigned short cube)
	Creates and adds graffiti to the level.
void	graffiti_update_columns (struct LEVEL *lvl, int graf_idx)
	Updates CLM entries to make the graffiti visible.
void	graffiti_clear_from_columns (struct LEVEL *lvl, int graf_idx)
	Updates CLM entries, removing graffiti from them.
unsigned int	get_graffiti_count (struct LEVEL *lvl)
	Gets amount of graffitties in the level.
struct DK_GRAFFITI *	get_graffiti (struct LEVEL *lvl, int graf_idx)
	Gets the graffiti structure for given graffiti index.
int	compute_graffiti_subtl_length (unsigned short font, char *text)
	Computes graffiti text length in subtiles, for given font.
int	get_graffiti_cube_height (unsigned short font, char *text)
	Returns graffiti text height in subtiles, for given font.
const unsigned char *	get_font_char (unsigned short font, char chr)
	Returns graffiti character for given font.
int	place_graffiti_on_slab (struct COLUMN_REC clm_recs[9], struct LEVEL lvl, int tx, int ty)
	Draws graffiti on given columns array.
short	place_graffiti_on_clm_top (struct COLUMN_REC clm_rec, unsigned short font, unsigned short height, char text, int graf_subtl, int graf_subtl_h, unsigned short cube)
	Places graffiti on top of given column.
short	place_graffiti_on_column (struct COLUMN_REC clm_rec, unsigned short font, unsigned short height, char text, int graf_subtl, unsigned short cube)
	Places graffiti on side of given column.