Initial commit

README.md

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+# Welcome to Choppuh!
+
+## What is Choppuh?
+It is what you need to get to!

src/bg_local.h

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+// Copyright (c) ZeniMax Media Inc.
+// Licensed under the GNU General Public License 2.0.
+
+// g_local.h -- local definitions for game module
+#pragma once
+
+#include "q_std.h"
+
+// define GAME_INCLUDE so that game.h does not define the
+// short, server-visible gclient_t and gentity_t structures,
+// because we define the full size ones in this file
+#define GAME_INCLUDE
+#include "game.h"
+
+//
+// p_move.c
+//
+struct pm_config_t {
+	int32_t		airaccel = 0;
+	bool		n64_physics = false;
+};
+
+extern pm_config_t pm_config;
+
+void Pmove(pmove_t *pmove);
+using pm_trace_func_t = trace_t(const vec3_t &start, const vec3_t &mins, const vec3_t &maxs, const vec3_t &end);
+using pm_trace_t = std::function<pm_trace_func_t>;
+void PM_StepSlideMove_Generic(vec3_t &origin, vec3_t &velocity, float frametime, const vec3_t &mins, const vec3_t &maxs, touch_list_t &touch, bool has_time, pm_trace_t trace);
+
+enum class stuck_result_t {
+	GOOD_POSITION,
+	FIXED,
+	NO_GOOD_POSITION
+};
+
+using stuck_object_trace_fn_t = trace_t(const vec3_t &, const vec3_t &, const vec3_t &, const vec3_t &);
+
+stuck_result_t G_FixStuckObject_Generic(vec3_t &origin, const vec3_t &own_mins, const vec3_t &own_maxs, std::function<stuck_object_trace_fn_t> trace);
+
+// state for coop respawning; used to select which
+// message to print for the player this is set on.
+enum coop_respawn_t {
+	COOP_RESPAWN_NONE, // no messagee
+	COOP_RESPAWN_IN_COMBAT, // player is in combat
+	COOP_RESPAWN_BAD_AREA, // player not in a good spot
+	COOP_RESPAWN_BLOCKED, // spawning was blocked by something
+	COOP_RESPAWN_WAITING, // for players that are waiting to respawn
+	COOP_RESPAWN_NO_LIVES, // out of lives, so need to wait until level switch
+	COOP_RESPAWN_TOTAL
+};
+
+// reserved general CS ranges
+enum {
+	CONFIG_MATCH_STATE = CS_GENERAL,
+	CONFIG_TEAMINFO,
+	CONFIG_CHASE_PLAYER_NAME,
+	CONFIG_CHASE_PLAYER_NAME_END = CONFIG_CHASE_PLAYER_NAME + MAX_CLIENTS,
+
+	// nb: offset by 1 since NONE is zero
+	CONFIG_COOP_RESPAWN_STRING,
+	CONFIG_COOP_RESPAWN_STRING_END = CONFIG_COOP_RESPAWN_STRING + (COOP_RESPAWN_TOTAL - 1),
+
+	// [Paril-KEX] if 1, n64 player physics apply
+	CONFIG_N64_PHYSICS,
+	CONFIG_HEALTH_BAR_NAME, // active health bar name
+
+	CONFIG_STORY_SCORELIMIT,	// this is also used for scorelimit display in dm
+
+	CONFIG_LAST
+};
+
+static_assert(CONFIG_LAST <= CS_GENERAL + MAX_GENERAL);
+
+// ammo IDs
+enum ammo_t : uint8_t {
+	AMMO_BULLETS,
+	AMMO_SHELLS,
+	AMMO_ROCKETS,
+	AMMO_GRENADES,
+	AMMO_CELLS,
+	AMMO_SLUGS,
+	AMMO_MAGSLUG,
+	AMMO_TRAP,
+	AMMO_FLECHETTES,
+	AMMO_TESLA,
+	AMMO_DISRUPTOR,
+	AMMO_PROX,
+	AMMO_MAX
+};
+
+// powerup IDs
+enum powerup_t : uint8_t {
+	POWERUP_SCREEN,
+	POWERUP_SHIELD,
+
+	POWERUP_AM_BOMB,
+
+	POWERUP_QUAD,
+	POWERUP_DUELFIRE,
+	POWERUP_PROTECTION,
+	POWERUP_INVISIBILITY,
+	POWERUP_SILENCER,
+	POWERUP_REBREATHER,
+	POWERUP_ENVIROSUIT,
+	POWERUP_ADRENALINE,
+	POWERUP_IR_GOGGLES,
+	POWERUP_DOUBLE,
+	POWERUP_SPHERE_VENGEANCE,
+	POWERUP_SPHERE_HUNTER,
+	POWERUP_SPHERE_DEFENDER,
+	POWERUP_DOPPELGANGER,
+
+	POWERUP_BALL,
+
+	POWERUP_FLASHLIGHT,
+	POWERUP_COMPASS,
+
+	POWERUP_TECH_DISRUPTOR_SHIELD,
+	POWERUP_TECH_POWER_AMP,
+	POWERUP_TECH_TIME_ACCEL,
+	POWERUP_TECH_AUTODOC,
+
+	POWERUP_REGEN,
+
+	POWERUP_MAX
+};
+
+// ammo stats compressed in 9 bits per entry
+// since the range is 0-300
+constexpr size_t BITS_PER_AMMO = 9;
+
+template<typename TI>
+constexpr size_t num_of_type_for_bits(size_t num_bits) {
+	return (num_bits + (sizeof(TI) * 8) - 1) / ((sizeof(TI) * 8) + 1);
+}
+
+template<size_t bits_per_value>
+constexpr void set_compressed_integer(uint16_t *start, uint8_t id, uint16_t count) {
+	uint16_t bit_offset = bits_per_value * id;
+	uint16_t byte = bit_offset / 8;
+	uint16_t bit_shift = bit_offset % 8;
+	uint16_t mask = (bit_v<bits_per_value> -1) << bit_shift;
+	uint16_t *base = (uint16_t *)((uint8_t *)start + byte);
+	*base = (*base & ~mask) | ((count << bit_shift) & mask);
+}
+
+template<size_t bits_per_value>
+constexpr uint16_t get_compressed_integer(uint16_t *start, uint8_t id) {
+	uint16_t bit_offset = bits_per_value * id;
+	uint16_t byte = bit_offset / 8;
+	uint16_t bit_shift = bit_offset % 8;
+	uint16_t mask = (bit_v<bits_per_value> -1) << bit_shift;
+	uint16_t *base = (uint16_t *)((uint8_t *)start + byte);
+	return (*base & mask) >> bit_shift;
+}
+
+constexpr size_t NUM_BITS_FOR_AMMO = 9;
+constexpr size_t NUM_AMMO_STATS = num_of_type_for_bits<uint16_t>(NUM_BITS_FOR_AMMO * AMMO_MAX);
+// if this value is set on an STAT_AMMO_INFO_xxx, don't render ammo
+constexpr uint16_t AMMO_VALUE_INFINITE = bit_v<NUM_BITS_FOR_AMMO> -1;
+
+constexpr void G_SetAmmoStat(uint16_t *start, uint8_t ammo_id, uint16_t count) {
+	set_compressed_integer<NUM_BITS_FOR_AMMO>(start, ammo_id, count);
+}
+
+constexpr uint16_t G_GetAmmoStat(uint16_t *start, uint8_t ammo_id) {
+	return get_compressed_integer<NUM_BITS_FOR_AMMO>(start, ammo_id);
+}
+
+// powerup stats compressed in 2 bits per entry;
+// 3 is the max you'll ever hold, and for some
+// (flashlight) it's to indicate on/off state
+constexpr size_t NUM_BITS_PER_POWERUP = 2;
+constexpr size_t NUM_POWERUP_STATS = num_of_type_for_bits<uint16_t>(NUM_BITS_PER_POWERUP * POWERUP_MAX);
+
+constexpr void G_SetPowerupStat(uint16_t *start, uint8_t powerup_id, uint16_t count) {
+	set_compressed_integer<NUM_BITS_PER_POWERUP>(start, powerup_id, count);
+}
+
+constexpr uint16_t G_GetPowerupStat(uint16_t *start, uint8_t powerup_id) {
+	return get_compressed_integer<NUM_BITS_PER_POWERUP>(start, powerup_id);
+}
+
+// player_state->stats[] indexes
+enum player_stat_t {
+	STAT_HEALTH_ICON = 0,
+	STAT_HEALTH = 1,
+	STAT_AMMO_ICON = 2,
+	STAT_AMMO = 3,
+	STAT_ARMOR_ICON = 4,
+	STAT_ARMOR = 5,
+	STAT_SELECTED_ICON = 6,
+	STAT_PICKUP_ICON = 7,
+	STAT_PICKUP_STRING = 8,
+	STAT_POWERUP_ICON = 9,
+	STAT_POWERUP_TIME = 10,
+	STAT_HELPICON = 11,
+	STAT_SELECTED_ITEM = 12,
+	STAT_LAYOUTS = 13,
+	STAT_SCORE = 14,
+	STAT_FLASHES = 15, // cleared each frame, 1 = health, 2 = armor
+	STAT_CHASE = 16,
+	STAT_SPECTATOR = 17,
+
+	STAT_MINISCORE_FIRST_PIC = 18,
+	STAT_MINISCORE_FIRST_SCORE = 19,
+	STAT_MINISCORE_SECOND_PIC = 20,
+	STAT_MINISCORE_SECOND_SCORE = 21,
+	STAT_CTF_FLAG_PIC = 22,
+	STAT_MINISCORE_FIRST_POS = 23,
+	STAT_MINISCORE_SECOND_POS = 24,
+	STAT_TEAM_RED_HEADER = 25,
+	STAT_TEAM_BLUE_HEADER = 26,
+	STAT_TECH = 27,
+	STAT_CROSSHAIR_ID_VIEW = 28,
+	STAT_MATCH_STATE = 29,
+	STAT_CROSSHAIR_ID_VIEW_COLOR = 30,
+	STAT_TEAMPLAY_INFO = 31,
+
+	// [Kex] More stats for weapon wheel
+	STAT_WEAPONS_OWNED_1 = 32,
+	STAT_WEAPONS_OWNED_2 = 33,
+	STAT_AMMO_INFO_START = 34,
+	STAT_AMMO_INFO_END = STAT_AMMO_INFO_START + NUM_AMMO_STATS - 1,
+	STAT_POWERUP_INFO_START,
+	STAT_POWERUP_INFO_END = STAT_POWERUP_INFO_START + NUM_POWERUP_STATS - 1,
+
+	// [Paril-KEX] Key display
+	STAT_KEY_A,
+	STAT_KEY_B,
+	STAT_KEY_C,
+
+	// [Paril-KEX] currently active wheel weapon (or one we're switching to)
+	STAT_ACTIVE_WHEEL_WEAPON,
+	// [Paril-KEX] top of screen coop respawn state
+	STAT_COOP_RESPAWN,
+	// [Paril-KEX] respawns remaining
+	STAT_LIVES,
+	// [Paril-KEX] hit marker; # of damage we successfully landed
+	STAT_HIT_MARKER,
+	// [Paril-KEX]
+	STAT_SELECTED_ITEM_NAME,
+	// [Paril-KEX]
+	STAT_HEALTH_BARS, // two health bar values; 7 bits for value, 1 bit for active
+	// [Paril-KEX]
+	STAT_ACTIVE_WEAPON,
+
+	STAT_SCORELIMIT,
+	STAT_DUEL_HEADER,
+
+	STAT_SHOW_STATUSBAR,
+
+	STAT_COUNTDOWN,
+
+	STAT_MINISCORE_FIRST_VAL,
+	STAT_MINISCORE_SECOND_VAL,
+
+	STAT_MONSTER_COUNT,
+	STAT_ROUND_NUMBER,
+
+	// don't use; just for verification
+	STAT_LAST
+};
+
+static_assert(STAT_LAST <= MAX_STATS + 1, "stats list overflow");