#include "../common.hpp"

namespace game {
	enum {
		ET_UNIT
	};

	enum {
		TILE_NONE,
		TILE_DIRT,
		TILE_WALL
	};

	enum {
		CF_NONE  = 0,
		CF_SOLID = 1,
		CF_HUMAN = 2
	};

	extern size_t selection_cookie;

	void worldgen(world::tile_t *tile, world::tile_index_t x,
	              procgen::perlin_noise_t *perlin);

	namespace assets {
		typedef struct {
			render::oriented_sprite_4M_t head_idle, body_idle;
			render::oriented_sprite_4M2_t legs_idle, legs_walking;
			render::animated_texture_t dead;
		} human_assets_t;

		typedef struct {
			render::oriented_sprite_4M_t idle, walking;
		} alien_assets_t;

		extern human_assets_t human;
		extern alien_assets_t alien;

		void load(void);
	}

	class unit_t : public world::entity_t {
	protected:
		world::world_t *world;

		world::cmodel_t make_cmodel(v2f_t at);
		void compute_bounds();

	public:
		v2f_t x;
		rectf_t size, render_size;
		world::cflags_t cflags;
		size_t selected = 0;

		typedef enum {
			UNIT_HUMAN,
			UNIT_ALIEN
		} type_t;

		type_t type;

		unit_t(type_t type_);

		virtual void think(double now, double dt) = 0;

		struct {
			bool moving = false;
			v2f_t dst;
			float angle = 0.0f;

			std::list<v2f_t> path;

			bool blocked;
			size_t attempts_left;
			float next_attempt;
		} move;

		void place(world::world_t *world_, v2f_t x_);
		bool keep_moving(double now, double dt, double speed);
		bool start_moving(v2f_t dst_, double now);

		bool awake = false;
		double wake_time = -INFINITY;
		virtual void wake(double now, unit_t *by_whom) = 0;
		virtual void sleep(double now) = 0;

		bool dead = false;
		double death_time = -INFINITY;
		int health = 1;
		void damage(double now, int points);
		virtual void die(double now) = 0;

		const wchar_t *say_text;
		double say_time = -INFINITY;
		void say(const wchar_t *wstr, double now);

		void render_to(render::state_t *render);

	};

	class human_t : public unit_t {
	public:
		human_t();
		void render_to(render::state_t *render);

		void wake(double now, unit_t *by_whom);
		void sleep(double now);
		void think(double now, double dt);
		void die(double now);
	};

	class alien_t : public unit_t {
		double next_targetting = -INFINITY;
		double next_attack = -INFINITY;

		void attack(double now, unit_t *target, float range);
	public:
		alien_t();
		void render_to(render::state_t *render);

		void wake(double now, unit_t *by_whom);
		void sleep(double now);
		void think(double now, double dt);
		void die(double now);
	};
};