Initial commit

src/tool.h

@@ -0,0 +1,146 @@
+/*
+Minetest
+Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "irrlichttypes.h"
+#include <string>
+#include <iostream>
+#include "itemgroup.h"
+#include <json/json.h>
+
+struct ItemDefinition;
+
+struct ToolGroupCap
+{
+	std::unordered_map<int, float> times;
+	int maxlevel = 1;
+	int uses = 20;
+
+	ToolGroupCap() = default;
+
+	bool getTime(int rating, float *time) const
+	{
+		std::unordered_map<int, float>::const_iterator i = times.find(rating);
+		if (i == times.end()) {
+			*time = 0;
+			return false;
+		}
+		*time = i->second;
+		return true;
+	}
+
+	void toJson(Json::Value &object) const;
+	void fromJson(const Json::Value &json);
+};
+
+
+typedef std::unordered_map<std::string, struct ToolGroupCap> ToolGCMap;
+typedef std::unordered_map<std::string, s16> DamageGroup;
+
+struct ToolCapabilities
+{
+	float full_punch_interval;
+	int max_drop_level;
+	ToolGCMap groupcaps;
+	DamageGroup damageGroups;
+	int punch_attack_uses;
+
+	ToolCapabilities(
+			float full_punch_interval_ = 1.4f,
+			int max_drop_level_ = 1,
+			const ToolGCMap &groupcaps_ = ToolGCMap(),
+			const DamageGroup &damageGroups_ = DamageGroup(),
+			int punch_attack_uses_ = 0
+	):
+		full_punch_interval(full_punch_interval_),
+		max_drop_level(max_drop_level_),
+		groupcaps(groupcaps_),
+		damageGroups(damageGroups_),
+		punch_attack_uses(punch_attack_uses_)
+	{}
+
+	void serialize(std::ostream &os, u16 version) const;
+	void deSerialize(std::istream &is);
+	void serializeJson(std::ostream &os) const;
+	void deserializeJson(std::istream &is);
+};
+
+struct DigParams
+{
+	bool diggable;
+	// Digging time in seconds
+	float time;
+	// Caused wear
+	u32 wear; // u32 because wear could be 65536 (single-use tool)
+	std::string main_group;
+
+	DigParams(bool a_diggable = false, float a_time = 0.0f, u32 a_wear = 0,
+			const std::string &a_main_group = ""):
+		diggable(a_diggable),
+		time(a_time),
+		wear(a_wear),
+		main_group(a_main_group)
+	{}
+};
+
+DigParams getDigParams(const ItemGroupList &groups,
+		const ToolCapabilities *tp,
+		const u16 initial_wear = 0);
+
+struct HitParams
+{
+	s32 hp;
+	// Caused wear
+	u32 wear; // u32 because wear could be 65536 (single-use weapon)
+
+	HitParams(s32 hp_ = 0, u32 wear_ = 0):
+		hp(hp_),
+		wear(wear_)
+	{}
+};
+
+HitParams getHitParams(const ItemGroupList &armor_groups,
+		const ToolCapabilities *tp, float time_from_last_punch,
+		u16 initial_wear = 0);
+
+HitParams getHitParams(const ItemGroupList &armor_groups,
+		const ToolCapabilities *tp);
+
+struct PunchDamageResult
+{
+	bool did_punch = false;
+	int damage = 0;
+	int wear = 0;
+
+	PunchDamageResult() = default;
+};
+
+struct ItemStack;
+
+PunchDamageResult getPunchDamage(
+		const ItemGroupList &armor_groups,
+		const ToolCapabilities *toolcap,
+		const ItemStack *punchitem,
+		float time_from_last_punch,
+		u16 initial_wear = 0
+);
+
+u32 calculateResultWear(const u32 uses, const u16 initial_wear);
+f32 getToolRange(const ItemDefinition &def_selected, const ItemDefinition &def_hand);