#include "islands.h"
#include "game.h"
#include "map.h"
#include "map_types.h"
#include "terrain.h"
#include "height_map.h"
#include "mapgen.h"
#include "mapgen_topology.h"
#include "mapgen_utils.h"
#include "temperature_map.h"
#include "rand.h"
#include "speclist.h"

Include dependency graph for islands.cpp:

Classes
struct	gen234_state

struct	terrain_select

Macros
#define	SPECLIST_TAG terrain_select

#define	terrain_select_list_iterate(tersel_list, ptersel) TYPED_LIST_ITERATE(struct terrain_select, tersel_list, ptersel)

#define	terrain_select_list_iterate_end LIST_ITERATE_END

#define	DMSIS 10

Functions
static struct terrain_select *	tersel_new (int weight, enum mapgen_terrain_property target, enum mapgen_terrain_property prefer, enum mapgen_terrain_property avoid, int temp_condition, int wet_condition)
	Allocate and initialize new terrain_select structure. More...

static void	tersel_free (struct terrain_select *ptersel)
	Free resources allocated for terrain_select structure. More...

static void	fill_island (int coast, long int bucket, const struct terrain_select_list tersel_list, const struct gen234_state *const pstate)
	Fill an island with different types of terrains; rivers have extra code. More...

static bool	make_island (int islemass, int starters, struct gen234_state *pstate, int min_specific_island_size)
	make an island, fill every tile type except plains note: you have to create big islands first. More...

static bool	create_island (int islemass, struct gen234_state *pstate)
	finds a place and drop the island created when called with islemass != 0 More...

static void	fill_island_rivers (int coast, long int bucket, const struct gen234_state const pstate)
	Fill an island with rivers. More...

static void	island_terrain_init ()
	Initialize terrain selection lists for make_island(). More...

static void	island_terrain_free ()
	Free memory allocated for terrain selection lists. More...

static void	initworld (struct gen234_state *pstate)
	fill ocean and make polar A temperature map is created in map_fractal_generate(). More...

static bool	map_generate_island_variable ()
	island base map generators More...

static bool	map_generate_island_single ()
	On popular demand, this tries to mimick the generator 3 as best as possible. More...

static bool	map_generate_island_2or3 ()
	Generator for placing a couple of players to each island. More...

bool	map_generate_island ()
	Generate a map with the ISLAND family of generators. More...

static struct tile *	get_random_map_position_from_state (const struct gen234_state *const pstate)
	Returns a random position in the rectangle denoted by the given state. More...

static bool	island_river_mouth_suitability (const struct tile ptile, const struct extra_type priver)
	Returns TRUE if ptile is suitable for a river mouth. More...

static bool	island_river_suitability (const struct tile ptile, const struct extra_type priver)
	Returns TRUE if there is a river in a cardinal direction near the tile and the tile is suitable for extending it. More...

static bool	is_near_land (struct tile *ptile)
	Return TRUE if the ocean position is near land. More...

static bool	place_island (struct gen234_state *pstate)
	Finds a place and drop the island created when called with islemass != 0. More...

static int	count_card_adjc_elevated_tiles (struct tile *ptile)
	Returns the number of cardinally adjacent tiles have a non-zero elevation. More...

Variables
struct {
bool init

struct terrain_select_list * forest

struct terrain_select_list * desert

struct terrain_select_list * mountain

struct terrain_select_list * swamp

}	island_terrain = {.init = false}

static long int	checkmass

Macro Definition Documentation

◆ DMSIS

#define DMSIS 10

Definition at line 303 of file islands.cpp.

◆ SPECLIST_TAG

#define SPECLIST_TAG terrain_select

Definition at line 40 of file islands.cpp.

◆ terrain_select_list_iterate

#define terrain_select_list_iterate	(	tersel_list,
		ptersel
	)	TYPED_LIST_ITERATE(struct terrain_select, tersel_list, ptersel)

Definition at line 43 of file islands.cpp.

◆ terrain_select_list_iterate_end

#define terrain_select_list_iterate_end LIST_ITERATE_END

Definition at line 45 of file islands.cpp.

Function Documentation

◆ count_card_adjc_elevated_tiles()

static int count_card_adjc_elevated_tiles ( struct tile * ptile )

static

Returns the number of cardinally adjacent tiles have a non-zero elevation.

Definition at line 922 of file islands.cpp.

Referenced by create_island().

◆ create_island()

static bool create_island	(	int	islemass,
		struct gen234_state *	pstate
	)

static

finds a place and drop the island created when called with islemass != 0

Definition at line 940 of file islands.cpp.

Referenced by make_island().

◆ fill_island()

static void fill_island	(	int	coast,
		long int *	bucket,
		const struct terrain_select_list *	tersel_list,
		const struct gen234_state *const	pstate
	)

static

Fill an island with different types of terrains; rivers have extra code.

Definition at line 658 of file islands.cpp.

Referenced by make_island().

◆ fill_island_rivers()

static void fill_island_rivers	(	int	coast,
		long int *	bucket,
		const struct gen234_state *const	pstate
	)

static

Fill an island with rivers.

Definition at line 779 of file islands.cpp.

Referenced by make_island().

◆ get_random_map_position_from_state()

static struct tile* get_random_map_position_from_state ( const struct gen234_state *const pstate )

static

Returns a random position in the rectangle denoted by the given state.

Definition at line 609 of file islands.cpp.

Referenced by create_island(), fill_island(), and fill_island_rivers().

◆ initworld()

static void initworld ( struct gen234_state * pstate )

static

fill ocean and make polar A temperature map is created in map_fractal_generate().

Definition at line 268 of file islands.cpp.

Referenced by map_generate_island_2or3(), map_generate_island_single(), and map_generate_island_variable().

◆ is_near_land()

static bool is_near_land ( struct tile * ptile )

static

Return TRUE if the ocean position is near land.

This is used in the creation of islands, so it differs logically from near_safe_tiles().

Definition at line 835 of file islands.cpp.

Referenced by place_island().

◆ island_river_mouth_suitability()

static bool island_river_mouth_suitability	(	const struct tile *	ptile,
		const struct extra_type *	priver
	)

static

Returns TRUE if ptile is suitable for a river mouth.

Definition at line 739 of file islands.cpp.

Referenced by fill_island_rivers().

◆ island_river_suitability()

static bool island_river_suitability	(	const struct tile *	ptile,
		const struct extra_type *	priver
	)

static

Returns TRUE if there is a river in a cardinal direction near the tile and the tile is suitable for extending it.

Definition at line 757 of file islands.cpp.

Referenced by fill_island_rivers().

◆ island_terrain_free()

static void island_terrain_free ( )

static

Free memory allocated for terrain selection lists.

Definition at line 136 of file islands.cpp.

Referenced by map_generate_island().

◆ island_terrain_init()

static void island_terrain_init ( )

static

Initialize terrain selection lists for make_island().

Definition at line 80 of file islands.cpp.

Referenced by map_generate_island().

◆ make_island()

static bool make_island	(	int	islemass,
		int	starters,
		struct gen234_state *	pstate,
		int	min_specific_island_size
	)

static

make an island, fill every tile type except plains note: you have to create big islands first.

Return TRUE if successful. min_specific_island_size is a percent value.

Definition at line 156 of file islands.cpp.

Referenced by initworld(), map_generate_island_2or3(), map_generate_island_single(), and map_generate_island_variable().

◆ map_generate_island()

bool map_generate_island ( )

Generate a map with the ISLAND family of generators.

Returns true on success.

Definition at line 574 of file islands.cpp.

Referenced by map_generate().

◆ map_generate_island_2or3()

static bool map_generate_island_2or3 ( )

static

Generator for placing a couple of players to each island.

PS: The weights NEED to sum up to totalweight (dammit)

Definition at line 505 of file islands.cpp.

Referenced by map_generate_island().

◆ map_generate_island_single()

static bool map_generate_island_single ( )

static

On popular demand, this tries to mimick the generator 3 as best as possible.

PS: I'd like to mult by 3/2, but starters might make trouble then

Definition at line 405 of file islands.cpp.

Referenced by map_generate_island().

◆ map_generate_island_variable()

static bool map_generate_island_variable ( )

static

island base map generators

Definition at line 308 of file islands.cpp.

Referenced by map_generate_island().

◆ place_island()

static bool place_island ( struct gen234_state * pstate )

static

Finds a place and drop the island created when called with islemass != 0.

Definition at line 852 of file islands.cpp.

Referenced by create_island().

◆ tersel_free()

static void tersel_free ( struct terrain_select * ptersel )

static

Free resources allocated for terrain_select structure.

Definition at line 649 of file islands.cpp.

Referenced by island_terrain_init().

◆ tersel_new()

static struct terrain_select * tersel_new	(	int	weight,
		enum mapgen_terrain_property	target,
		enum mapgen_terrain_property	prefer,
		enum mapgen_terrain_property	avoid,
		int	temp_condition,
		int	wet_condition
	)

static

Allocate and initialize new terrain_select structure.

Definition at line 627 of file islands.cpp.

Referenced by island_terrain_init().

Variable Documentation

◆ checkmass

long int checkmass

static

Definition at line 75 of file islands.cpp.

Referenced by make_island(), map_generate_island_2or3(), map_generate_island_single(), map_generate_island_variable(), and place_island().

◆ desert

struct terrain_select_list* desert

Definition at line 59 of file islands.cpp.

◆ forest

struct terrain_select_list* forest

Definition at line 58 of file islands.cpp.

◆ init

bool init

Definition at line 57 of file islands.cpp.

◆

struct { ... } island_terrain

Referenced by island_terrain_free(), island_terrain_init(), and make_island().

◆ mountain

struct terrain_select_list* mountain

Definition at line 60 of file islands.cpp.

◆ swamp

struct terrain_select_list* swamp

Definition at line 61 of file islands.cpp.

Classes

Macros

Functions

Variables

Macro Definition Documentation

◆ DMSIS

◆ SPECLIST_TAG

◆ terrain_select_list_iterate

◆ terrain_select_list_iterate_end

Function Documentation

◆ count_card_adjc_elevated_tiles()

◆ create_island()

◆ fill_island()

◆ fill_island_rivers()

◆ get_random_map_position_from_state()

◆ initworld()

◆ is_near_land()

◆ island_river_mouth_suitability()

◆ island_river_suitability()

◆ island_terrain_free()

◆ island_terrain_init()

◆ make_island()

◆ map_generate_island()

◆ map_generate_island_2or3()

◆ map_generate_island_single()

◆ map_generate_island_variable()

◆ place_island()

◆ tersel_free()

◆ tersel_new()

Variable Documentation

◆ checkmass

◆ desert

◆ forest

◆ init

◆

◆ mountain

◆ swamp