[soccer] Add soccer mod

mods/soccer/LICENSE.txt

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+
+Copyright (c) 2013, Diego Martínez
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+  * Redistributions of source code must retain the above copyright notice,
+    this list of conditions and the following disclaimer.
+
+  * Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions and the following disclaimer in the documentation
+    and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.

mods/soccer/README.txt

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+
+Soccer Mod
+----------
+
+Play soccer on Minetest!
+
+This currently only provides the ball; the actual logic for implementing a match
+will be implemented in the future. For now, you can use Mesecons Wooden Pressure
+Plates along with some logic to at least handle scoring. Goals are also provided
+but have no functionality.
+
+The ball is not craftable ATM. Use /giveme soccer:ball_item, and place it with
+right-click. You can take it again by punching it.
+
+You can push the ball by standing near it, and kick it by holding the "sneak"
+key (by default "Shift"). The ball will get pushed/kicked in the direction the
+player is facing (you can center-on the ball by looking up).
+
+
+Special thanks
+--------------
+- 12Me21: Ideas about the crafting recipe.
+- ecube: Original (black) texture.
+- Xiug: Ideas and textures.

mods/soccer/depends.txt

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+default
+wool

mods/soccer/init.lua

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+
+local function reg_ball(color)
+	local ball_item_name = "soccer:ball_" .. color .. "_item"
+	local ball_ent_name = "soccer:ball_" .. color .. "_entity"
+
+	minetest.register_entity(ball_ent_name, {
+		physical = true,
+		hp_max = 32767,
+		collide_with_objects = false,
+		visual = "mesh",
+		visual_size = {x = 1.125, y = 1.125, z = 1.125},
+		mesh = "soccer_ball.x",
+		groups = {immortal = true},
+		textures = {"soccer_ball_" .. color .. ".png"},
+		collisionbox = { -0.25, -0.25, -0.25, 0.25, 0.25, 0.25},
+		timer = 0,
+
+		on_step = function(self, dtime)
+			self.timer = self.timer + dtime
+			if self.timer >= 0.2 then
+				self.object:setacceleration({x = 0, y = -14.5, z = 0})
+				self.timer = 0
+				local vel = self.object:getvelocity()
+				local p = self.object:getpos();
+				p.y = p.y - 0.5
+				if minetest.registered_nodes[minetest.env:get_node(p).name].walkable then
+					vel.x = vel.x * 0.9
+					if vel.y < 0 then vel.y = vel.y * -0.6 end
+					vel.z = vel.z * 0.9
+				end
+				if (math.abs(vel.x) <= 0.1) and (math.abs(vel.z) <= 0.1) then
+					vel.x = 0
+					vel.z = 0
+				end
+				self.object:setvelocity(vel)
+				local pos = self.object:getpos()
+				local objs = minetest.env:get_objects_inside_radius(pos, 1)
+				local player_count = 0
+				local final_dir = {x = 0, y = 0, z = 0}
+				for _,obj in ipairs(objs) do
+					if obj:is_player() then
+						local objdir = obj:get_look_dir()
+						local mul = 1
+						if (obj:get_player_control().sneak) then mul = 2 end
+						final_dir.x = final_dir.x + (objdir.x * mul)
+						final_dir.y = final_dir.y + (objdir.y * mul)
+						final_dir.z = final_dir.z + (objdir.z * mul)
+						player_count = player_count + 1
+					end
+				end
+				if final_dir.x ~= 0 or final_dir.y ~= 0 or final_dir.z ~= 0 then
+					final_dir.x = (final_dir.x * 7.2) / player_count
+					final_dir.y = (final_dir.y * 9.6) / player_count
+					final_dir.z = (final_dir.z * 7.2) / player_count
+					self.object:setvelocity(final_dir)
+					minetest.sound_play("default_dig_oddly_breakable_by_hand", {object = self.object, gain = 0.5})
+				end
+			end
+		end,
+
+		on_punch = function(self, puncher)
+			if puncher and puncher:is_player() then
+				local inv = puncher:get_inventory()
+				inv:add_item("main", ItemStack(ball_item_name))
+				self.object:remove()
+			end
+		end,
+
+		is_moving = function(self)
+			local v = self.object:getvelocity()
+			if (math.abs(v.x) <= 0.1) and (math.abs(v.z) <= 0.1) then
+				v.x = 0
+				v.z = 0
+				self.object:setvelocity(v)
+				return false
+			end
+			return true
+		end,
+	})
+
+	minetest.register_craftitem(ball_item_name, {
+		description = "Soccer Ball ("..color..")",
+		inventory_image = "soccer_ball_"..color.."_inv.png",
+		wield_scale = {x = 0.75, y = 0.75, z = 4.5},
+		on_place = function(itemstack, placer, pointed_thing)
+			local pos = pointed_thing.above
+			-- pos = { x =pos.x + 0.5, y = pos.y, z = pos.z + 0.5 }
+			local ent = minetest.env:add_entity(pos, ball_ent_name)
+			minetest.log("action", placer:get_player_name() .. " placed a ball at " .. minetest.pos_to_string(pointed_thing.above) .. ".")
+			ent:setvelocity({x = 0, y = -14.5, z = 0})
+			if not minetest.setting_getbool("creative_mode") then
+				itemstack:take_item()
+			end
+			return itemstack
+		end,
+	})
+
+	if color == "purple" then
+		color = "pink"
+	end
+	minetest.register_craft({
+		output = ball_item_name,
+		recipe = {
+			{ "", "wool:white", "" },
+			{ "wool:white", "wool:" .. color, "wool:white" },
+			{ "", "wool:white", "" },
+		},
+	})
+
+end
+
+colors = {
+	"black", "red", "green", "blue", "yellow", "purple",
+}
+
+for _,color in ipairs(colors) do
+	reg_ball(color)
+end
+
+minetest.register_alias("ball", "soccer:ball_black_item") -- For quickly using the /give command.
+
+if minetest.setting_getbool("log_mods") then
+	minetest.log("action", "Carbone: [soccer] loaded.")
+end