JP6360126B2 - Server apparatus, control method thereof, and program - Google Patents

Description

  The present invention relates to a server device, a control method thereof, and a program.

  2. Description of the Related Art Conventionally, many technologies related to a server device that provides a game in which a battle is performed using an item owned by a user or a quest is captured have been seen. For example, Patent Document 1 discloses an image data storage unit that stores image data for displaying a game image, a message data storage unit that stores message data for displaying a message including a rule, and a pre-game start. Outputs a rule message in a manner that can be perceived by the game player, displays a game image corresponding to the rule message on the display device based on the image data, and displays a game image related to the game based on the image data after the game starts. A game server provided with a control means for displaying on a display device is disclosed.

JP 2008-220984 A

  However, like the game server of patent document 1, in the conventional technique, the acquisition method of a battle | competition card is limited, and the user's interest with respect to a game may be reduced. In particular, since it is difficult to acquire an item having a high rare value, an impression that there is no possibility of acquisition is given to the user, which may significantly reduce interest in the game.

The present invention has been made in view of the above circumstances, and provides a lottery items, and the predetermined condition server device capable of changing the probability of winning the item by selecting one drawing mode Ri by the, the control method And to provide a program.

A control method according to the present invention is a control method executed by a server device connected to a terminal device operated by a user via a communication line, and the step of selecting one lottery mode from among a plurality of lottery modes When the one lottery mode is selected, a step of lottery from a plurality of types of items based on the lottery mode, and when the lottery is performed, the winning item is sent to the terminal device. comprising the steps of providing, and in the step of selecting a lottery mode of the one, among the plurality of lottery mode, based on the game progress of the user, and selects one drawing mode.
The control method according to the present invention is a control method executed by a server device connected to a terminal device operated by a user via a communication line, and selects one lottery mode from a plurality of lottery modes. A step of selecting a lottery from a plurality of types of items based on the lottery mode when the one lottery mode is selected; and a step of selecting a winning item when the lottery is performed It has the steps of providing, in the step of selecting a lottery mode of the one, among the plurality of lottery mode, based on selection by the user, and selects one drawing mode.
The control method according to the present invention further includes a step of storing items acquired by the user, and the plurality of lottery modes check items acquired by the user and items that the user has already acquired. It is preferable to include a mode for increasing the probability of winning an item not acquired by the user among the plurality of types of items by setting the winning probability of.
In the control method according to the present invention, it is preferable that at least one item information is set for the item, and the plurality of lottery modes have different probabilities of winning for different item information.
In the control method according to the present invention, it is preferable that the lottery mode increases a probability that a predetermined type of item among the plurality of types of items is won.
The server device according to the present invention is a server device connected to a terminal device operated by a user via a communication line, and includes means for selecting one lottery mode from a plurality of lottery modes, Means for selecting a lottery from a plurality of types of items based on the lottery mode, and means for providing the selected item to the terminal device when the lottery is performed. , wherein the means for selecting one lottery mode, from among a plurality of lottery mode, based on the game progress of the user, and selects one drawing mode.
The server device according to the present invention is a server device connected to a terminal device operated by a user via a communication line, and includes means for selecting one lottery mode from a plurality of lottery modes, Means for selecting a lottery from a plurality of types of items based on the lottery mode, and means for providing the selected item to the terminal device when the lottery is performed. , wherein the means for selecting one lottery mode, from among a plurality of lottery mode, based on selection by the user, and selects one drawing mode.
Further, the program according to the present invention may be configured to select a plurality of types based on the lottery mode when the computer selects the one lottery mode from the plurality of lottery modes and the one lottery mode. Means for selecting a lottery item, and means for providing the selected item to the terminal device when the lottery is performed, and means for selecting the one lottery mode includes a plurality of lotteries. One lottery mode is selected from the modes based on the game progress of the user.
Further, the program according to the present invention may be configured to select a plurality of types based on the lottery mode when the computer selects the one lottery mode from the plurality of lottery modes and the one lottery mode. Means for selecting a lottery item, and means for providing the selected item to the terminal device when the lottery is performed, and means for selecting the one lottery mode includes a plurality of lotteries. One lottery mode is selected from the modes based on the selection by the user.

  Further, in this specification and the like, the “unit” does not simply mean a physical configuration, but also includes a case where the functions of the configuration are realized by software. In addition, functions of one configuration may be realized by two or more physical configurations, or functions of two or more configurations may be realized by one physical configuration.

According to the present invention there is provided a lottery items, and it is possible to change the winning probability of the item by selecting one drawing mode Ri by the predetermined conditions.

It is a lineblock diagram of the game system containing the server apparatus in a 1st embodiment of the present invention. It is a block diagram of the server apparatus in the 1st Embodiment of this invention. It is a figure which shows the item information table in the 1st Embodiment of this invention. It is a figure which shows the user information table in the 1st Embodiment of this invention. It is a figure which shows the mode information table in the 1st Embodiment of this invention. It is a figure which shows an example of the mode lottery screen in the 1st Embodiment of this invention. It is a chart which shows the processing flow of the server apparatus in the 1st Embodiment of this invention. It is a figure which shows the screen transition in the 1st Embodiment of this invention. It is a chart which shows the processing flow of the probability control process in the 1st Embodiment of this invention. It is a chart which shows the processing flow of the probability control process in the 1st Embodiment of this invention.

[First embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 shows a system configuration diagram of a game system 10 including a server device 100 according to the present embodiment. As shown in FIG. 1, the server apparatus 100 is a server computer connected to a network 300 such as the Internet or a dedicated line. Similarly to the server device 100, mobile terminals 200A to 200D (hereinafter, the mobile terminals 200A to 200D are collectively referred to as the mobile terminal 200), which are terminal devices connected to the network 300 in a wired or wireless manner, can communicate with each other. Is set to the game system 10.

First, an outline of the game system 10 will be described.
A user of the game system 10 receives a game by connecting to the server apparatus 100 using the mobile terminal 200 connected to the network 300. When connected to the server apparatus 100, the user can acquire items necessary for the progress of the game from the server apparatus 100 by lottery.

  The mobile terminal 200 is an information processing device having a function of communicating with the server device 100 via the network 300. Specifically, mobile phones, smartphones, notebook PCs, PDAs, and the like are listed. Although not shown in FIG. 1, the mobile terminal 200 displays a main control unit including a CPU and a memory, a communication unit for connecting to the network 300, an input unit such as a touch panel that receives an operation from the user, and an item lottery result. It is preferable to include a display unit and the like. In the present embodiment, the terminal used for the user to access the server apparatus 100 is the mobile terminal 200, but the present invention is not limited to this. For example, it is a terminal apparatus such as a desktop PC having no portability. May be.

  There are a plurality of types of items that the user can acquire using the mobile terminal 200. For example, in a game, when a player operated by a user battles an enemy character, a skill-up item that increases the player's attack power, defense power, or physical strength, a recovery item that recovers the player's physical strength, or an enemy character You may provide the attack item to attack, the defense item which prevents the attack from enemy characters, etc. Here, the skill refers to the ability to perform specific actions such as attack, defense, recovery, and special attacks.

  Furthermore, it is desirable that the attack item and the defense item have, as parameters, attributes such as fire, water, and thunder that show compatibility with enemy characters. For example, an attack item with a water attribute may be used as an effective attack means for an enemy character with a fire attribute. In addition to attributes, item parameters may include attack power, defense power, physical strength, rarity, and the like. For example, it is desirable that the rarity is ranked according to the rarity value of the item. The probability that these items are won by lottery (hereinafter referred to as item winning probability) depends on a pattern that associates each item with the item winning probability, which will be described later. A state where items are selected by a predetermined pattern is called a mode.

  Next, each configuration of the server apparatus 100 will be described with reference to FIG. FIG. 2 is a block diagram of the server device 100. As illustrated in FIG. 2, the server device 100 includes a control unit 110, an input unit 120, a storage unit 130, and a communication unit 140.

  The control unit 110 includes an arithmetic processing unit 111 such as a CPU or MPU, an image processing unit 112, and a memory 113 such as a RAM. The arithmetic processing unit 111 operates various function units by executing a program recorded in the storage unit 130 based on various inputs. This program may be stored in a storage medium such as a CD-ROM, or distributed via the network 300 and installed in a computer. The memory 113 is for temporarily storing a server program, a game program, and various types of data necessary for calculation during execution of processing in these programs.

  The image processing unit 112 generates an image to be transmitted to the user's mobile terminal 200. Specifically, the image generated by the image processing unit 112 includes an item image, an item lottery screen image, a mode lottery screen image, and the like.

  The input unit 120 indicates a keyboard, a mouse, a touch panel, or the like, and receives an operation from an administrator of the server device 100.

  The storage unit 130 is configured by a storage device such as a hard disk, and records various programs necessary for executing processing in the control unit 110, data necessary for executing various programs, and the like. Specifically, the storage unit 130 preferably includes an item information table 130A, a user information table 130B, and a mode information table 130C. FIG. 3 shows the item information table 130A, and FIG. 4 shows the user information table 130B. For example, the item information table 130A includes item identifiers, item names, parameters (attributes, physical strength, attack power, defense power, rarity, etc.), item addition time (the item can be acquired in the game) as item information. Is stored). In the user information table 130B, a user ID, a password, a user game history (level, status, play time, acquired item, mode information that is a mode selection result, etc.), and a probability that each mode to be described later is selected (hereinafter, User information such as mode selection probability is stored. As shown in FIG. 5, the mode information table 130C stores identifiers and names of a plurality of types of modes, and item winning probabilities for each mode.

  The communication unit 140 is for connecting the server device 100 to the network 300. For example, the communication unit 140 may include a LAN card, an analog modem, an ISDN modem, and the like, and an interface for connecting them to the processing unit via a transmission line such as a system bus.

  Furthermore, as illustrated in FIG. 2, the arithmetic processing unit 111 includes an item lottery unit 111A, a mode selection unit 111B, a probability control unit 111C, and an output unit 111D as functional units.

  The item lottery unit 111A determines an item to be provided to the user from a plurality of types of items by lottery. This lottery display method is, for example, a capsule toy, by rotating the lever on the screen, taking out items, using a roulette, using a lottery machine such as a rotary fork or lottery, darts It is desirable that the probability of an item to be won can be controlled according to the parameter. An image used for the lottery is created by the image processing unit 112.

  The mode selection section 111B selects a mode used for item lottery from the modes stored in the mode information table 130C.

  Examples of modes include “non-overlapping mode”, “parameter guarantee mode”, “probability variation mode”, and the like. The “non-overlapping mode” is a mode in which an item already owned by the user is excluded from the lottery target and is not won.

  “Parameter guarantee mode” refers to a mode in which it is guaranteed that the probability that an item to be won is an item having a predetermined attribute is 100%. Hereinafter, it is said that this probability is 100%. The parameter assurance mode includes, for example, “fire attribute assurance mode”, “water attribute assurance mode”, “lightning attribute assurance mode”, etc., which guarantees that an item with a predetermined attribute is won, and special attacks and recovery. "Skilled item guarantee mode" that guarantees that items that can demonstrate their ability will be won.

  Further, the “probability variation mode” refers to a mode in which the winning probability of a specific item is increased from the value in the normal mode. For example, “new added item increase mode” for increasing the winning probability of an item newly added to the game, “skilled item increase mode” for increasing the winning probability of an item having a predetermined skill, and the like.

  Information stored in the mode information table 130C for each of these modes will be described. Each record of the mode information table 130C stores the identifier of each mode, the name of the mode, and the item winning probability of each item in the mode as described above. For example, in the “non-overlapping mode” record, the item winning probability stores a value when the user has not acquired the item. The value when the user has not acquired the item may be the same as the item winning probability in the normal mode.

  In various “parameter guarantee mode” records, a predetermined value is stored as the item win probability of an item having a parameter for which the mode guarantees win, and 0 is stored as the item win probability of other items. ing. For example, in the “fire attribute guarantee mode” record, a predetermined value is stored as the item winning probability of an item with fire attributes, and 0 is stored as the item winning probability of items other than fire attributes.

  Further, in various “probability variation mode” records, a higher value than the normal mode is stored in the item winning probability of an item having a specific parameter for each mode. For example, in the “new added item increase mode” record, a newly added item stores a value that is twice the normal mode as the item win probability, and the other items have the same value as the normal mode. It may be stored as a winning probability.

  These modes are desirably selected by lottery. As with the lottery method, various lottery methods can be used. FIG. 6 shows an example of the mode lottery screen. In this example, a lottery of modes is performed in a roulette format from “out of mode (normal mode)”, “fire attribute guarantee mode”, “water attribute guarantee mode”, and “lightning attribute guarantee mode”. However, the number, type, and combination of modes selected as a result of the lottery are not limited to this.

  In addition, the mode selection unit 111B desirably controls the mode selection probability based on the user information of the user stored in the user information table 130B. For example, the higher the user level, the lower the probability that “out (normal mode)” is selected when the mode is selected. Also, depending on the degree of progress of the game, for example, at the stage where there are many enemy characters with fire attributes, it is possible to increase the probability of entering the water attribute guarantee mode. Furthermore, the mode selection probability of a predetermined mode may be changed according to the item possessed by the user. For example, when the user has a predetermined number or more of recovery items, the mode selection unit 111B is configured to replenish the user's weak points so that the probability of selecting the attack skill card increase mode increases. It is desirable to control the mode selection probability. Specifically, after the mode selection unit 111B appropriately changes and changes the mode selection probability of the user stored in the user information table 130B according to information such as a user's play time, level, and acquired item. It is desirable to select a mode based on the mode selection probability.

  The probability control unit 111C refers to the mode information table 130C based on the mode selected by the mode selection unit 111B and controls the item winning probability. Specifically, the item winning probability stored in the mode information table 130C may be passed as an argument to subsequent processing. For example, in the various parameter guarantee modes described above, the mode information table 130C has a predetermined value for an item having a parameter guaranteed in the selected mode, and 0 for an item having no guaranteed parameter. , Stored as item win probability. The probability control unit 111C may pass each stored item winning probability as an argument to the item lottery unit 111A at the subsequent stage. Further, in the non-overlapping mode, the probability control unit 111C confirms the user's acquired item recorded in the user information table 130B, and the item that has been acquired by the user has the item win probability set to 0, and the item lottery unit as an argument Pass to 111A. In addition, for items that have not been acquired by the user, the probability control unit 111C passes the item winning probability value stored in the mode information table 130C as an argument to the item lottery unit 111A. In various probability variation modes, it is desirable to pass each item winning probability stored in the mode information table 130C as an argument to the item lottery section 111A.

  The output unit 111D outputs an image created by the image processing unit 112. The output unit 111D may output image information to the mobile terminal 200 and display the image information on the screen of the mobile terminal 200. When the server device 100 is directly connected to the display, the output unit 111D It may be displayed.

  The processing flow of the arithmetic operation unit when the user performs item lottery using the game system 10 will be described in detail with reference to FIGS. 7 and 8. FIG. 7 is a chart showing the processing flow of the server apparatus 100, and FIG. 8 is a transition diagram of screens displayed on the portable terminal 200A at this time. Each processing step included in the processing flow described below can be executed in any order or in parallel as long as there is no contradiction in the processing contents. These steps may be added. Further, a step described as one step for convenience can be executed by being divided into a plurality of steps, while a step described as being divided into a plurality of steps for convenience can be grasped as one step.

  First, the server device 100 accepts an access from a user using the mobile terminal 200A (S101). At this time, a game start request is transmitted from the mobile terminal 200A to the arithmetic processing unit 111, but it is desirable that the server device 100 requests input of login information such as a user ID and a password before starting the game. . Thus, when the arithmetic processing unit 111 of the server device 100 recognizes the login information, the user-specific history information associated with the user ID is acquired from the user information table 130B of the storage unit 130, and the game continues from the previous game. This is because it is possible to resume the process.

  When the server device 100 receives a game start request from the user, the image processing unit 112 creates an item lottery screen (screen 500 in FIG. 8), and the output unit 111D outputs this screen to the user's mobile terminal 200A. (S102). As shown in FIG. 8, the item lottery screen 500 displays a lottery start button 500A for starting item lottery and a lottery image 500B for displaying a lottery machine such as roulette.

  When the user clicks or touches the lottery start button 500A on the item lottery screen 500, the lottery of items is started. The item lottery result is displayed on the item lottery result display screen (screen 501 in FIG. 8) (S103). The item lottery result is preferably added as an acquired item to the user information table 130B by the arithmetic processing unit 111 every time a lottery is performed during login.

  On the item lottery result display screen 501, as shown in FIG. 8, an image 501 </ b> B of an item acquired by the user by lottery and a next button 501 </ b> A for selecting a mode by lottery are displayed. When the user operates the portable terminal 200A from this screen and selects the next button 501A, selection of a mode by lottery is started (S104). The mode is selected on the mode lottery screen 502 in FIG. The mode selection result is recorded in the user information table 130B by the arithmetic processing unit 111 as a mode selection result (referred to as mode information). Mode information is retained while the mode is ongoing.

  The mode selection result is displayed on the mode result display screen 503 of FIG. 8 (S105). On this screen, a mode result image 503B indicating the selected mode, a next button 503A for performing the next item lottery, and a release button 503C for canceling the mode are displayed. When the user selects the release button 503C, or when the mode selection result is out of place (normal mode), the arithmetic processing unit 111 determines that the mode has been released (S106: YES), and returns to the normal mode. . At this time, the mode information held in the user information table 130B is deleted (S107), and the screen returns to the item lottery screen 500.

  On the other hand, if the mode selection result is not disjoint and the user selects the next button 503A (S106: NO), the state in which the probability is controlled by the probability control process described later according to the selected mode. The item lottery screen 504 shown in FIG. 8 is displayed while being held. On this screen, a lottery start button 504A for instructing to perform lottery according to the selected mode, a lottery image 504B for displaying a lottery device such as roulette, and a release button 504C for canceling the selected mode are displayed. Is done. When the user selects the lottery start button 504A, an item is selected according to the mode. The lottery result with the mode maintained is displayed on the item lottery result screen 505 in FIG. When the user selects the next button 505A displayed on this screen, the item lottery screen 504 is displayed again, and the lottery is performed while maintaining the selected mode.

  On the other hand, when the user selects the release button 504C on the item lottery screen 504, the arithmetic processing unit 111 determines that the mode has been released (S106: YES), and returns to the normal mode. At this time, the mode information held in the user information table 130B is deleted, and the screen returns to the item lottery screen 500. Further, when the arithmetic processing unit 111 determines that the user has logged out (S108: YES), the acquired item information (in other words, history information of the item lottery result) recorded in the user information table 130B is deleted (S109), and the process is terminated. To do.

  Next, probability control processing in the case where lottery is performed in a state where each mode is selected will be described with reference to FIGS. 9 and 10.

  FIG. 9 is a flowchart showing a processing flow in the “non-overlapping mode”. When a non-overlapping mode is selected by lottery, the probability control unit 111C refers to the acquired item in the user information table 130B, confirms the item acquired by the user during login, and determines the item already owned by the user. The item winning probability is set to 0 (S201), and is passed as an argument to the item lottery unit 111A. At this time, the probability control unit 111 </ b> C passes the item winning probability stored in the mode information table 130 </ b> C as an argument as it is for an item that the user does not own. Next, the item lottery unit 111A performs lottery based on the item winning probability passed to the probability control unit 111C (S202), and the arithmetic processing unit 111 appropriately selects items acquired by the user by item lottery in the user information table 130B. Is added as an acquired item (S203). The processing from S201 to S203 is repeatedly executed until the user cancels the mode. When the arithmetic processing unit 111 determines that the mode has been canceled (S204: YES), the mode information recorded in the user information table 130B is deleted (S205), and the non-overlapping mode is terminated.

  FIG. 10 is a flowchart showing a processing flow in the “parameter guarantee mode” and the “probability variation mode”. First, the probability control unit 111C refers to the user information table 130B and determines the selected mode (S301). If the probability control unit 111C determines that the current mode is the “parameter guarantee mode”, it refers to the mode information table 130C and passes the item winning probability of each item as an argument to the item lottery unit 111A (S302). At this time, the item winning probability of an item having no parameter guaranteed to win is 0 on the mode information table 130C, and the item winning probability of an item having a guaranteed parameter is a predetermined value. 130C. For example, when the mode is the water attribute guarantee mode, 0 is passed to the item lottery unit 111A as the item winning probability of items other than the water attribute.

  If it is determined that the selected mode is the “probability variation mode”, the probability control unit 111C increases the item winning probability of an item having a predetermined parameter to a predetermined value (S303). For example, when the lottery mode is the “new added item increase mode”, the winning probability of an item newly added to the game is increased.

  When the item lottery unit 111A performs lottery based on the passed argument (item winning probability) (S304), the calculation processing unit 111 adds the lottery result to the user information table 130B as needed (S305). The processing from S304 to S305 is repeatedly executed until the user cancels the mode. When the arithmetic processing unit 111 determines that the mode has been canceled (S306: YES), the probability control unit 111C returns the item winning probability of each changed item to normal, and the arithmetic processing unit 111 records it in the user information table 130B. The mode information thus deleted is deleted (S307), and the mode is terminated.

[Other Embodiments]
As mentioned above, although embodiment of this invention was described, this invention is not limited to above-mentioned embodiment, Based on the technical idea of this invention, a various deformation | transformation and change are possible.

  For example, in the above-described embodiment, the mobile terminal 200 is configured to directly access the server device 100 via the network 300. However, for example, when the communication system includes a Web server, the Web server may be configured to relay the exchange with the mobile terminal 200. As a result, security risks can be reduced.

In the above-described embodiment, the mode selection unit 111B is configured to determine the mode by lottery. However, the mode selection unit 111B is not limited to this. For example, the mode selection unit 111B is determined according to the game progress of the user. May be selected arbitrarily by the user. Moreover, although the mode selection part 111B described as a structure which selects the mode used for the lottery of an item from the mode memorize | stored in the memory | storage part 130, the mode does not necessarily need to be memorize | stored, for example, a probability control part 111C may be a branching condition for processing when the processing for controlling the probability is performed. The invention described in the claims immediately before the division of the original application of the present application will be appended below.
[1]
A control method executed by a server device connected to a terminal device operated by a user via a communication line,
Selecting one mode from a plurality of modes based on a mode selection probability of a predetermined mode that varies according to the item possessed by the user;
Displaying the selected one mode to the user;
Determining an item to be provided to the terminal device from a plurality of types of items based on the selected one mode;
Providing the determined item to the terminal device;
Control method.
[2]
In the control method according to [1],
In the step of determining, based on the selected one mode, the item acquired by the user is confirmed, and the winning probability of the item that the user has already acquired is set to zero. A control method of determining an item to be provided to the terminal device from among the plurality of types of items by increasing a probability that an item not acquired by the user among the items is won.
[3]
In the control method according to [1] or [2],
The control method in which the plurality of modes have different probabilities of winning for different item information.
[4]
A server device connected via a communication line to a terminal device operated by a user,
Means for selecting one mode from a plurality of modes based on a mode selection probability of a predetermined mode that varies according to the item possessed by the user;
Means for displaying the selected one mode to the user;
Means for determining an item to be provided to the terminal device from a plurality of types of items based on the selected one mode;
Means for providing the determined item to the terminal device;
A server device comprising:
[5]
Computer
Means for selecting one mode from a plurality of modes based on a mode selection probability of a predetermined mode that varies according to an item possessed by the user;
Means for displaying to the user the selected one mode;
Means for determining an item to be provided to the terminal device operated by the user from among a plurality of types of items based on the selected one mode;
Means for providing the determined item to the terminal device;
Program to make it work.

DESCRIPTION OF SYMBOLS 10 Game system 100 Server apparatus 110 Control part 111 Arithmetic processing part 111A Item lottery part 111B Mode selection part 111C Probability control part 111D Output part 112 Image processing part 113 Memory 120 Input part 130 Storage part 130A Item information table 130B User information table 130C mode Information table 140 Communication unit 200A to D Mobile terminal 300 Network 500 to 505 Screen 500A to 505A Button 503C, 504C Button 500B to 505B Image

Claims (9)

A control method executed by a server device connected to a terminal device operated by a user via a communication line,
Selecting one lottery mode from a plurality of lottery modes;
When the one lottery mode is selected, based on the lottery mode, performing a lottery from a plurality of types of items; and
When the lottery is performed, providing the winning item to the terminal device;
Have
In the step of selecting a lottery mode of the one, among the plurality of lottery mode, based on the game progress of the user, the control method characterized by selecting one drawing mode. A control method executed by a server device connected to a terminal device operated by a user via a communication line,
Selecting one lottery mode from a plurality of lottery modes;
When the one lottery mode is selected, based on the lottery mode, performing a lottery from a plurality of types of items; and
When the lottery is performed, providing the winning item to the terminal device;
Have
In the step of selecting a lottery mode of the one, among the plurality of lottery mode, based on selection by the user, the control method characterized by selecting one drawing mode. Further comprising storing the item obtained by the user;
In the plurality of lottery modes, the user acquires items among the plurality of types of items by confirming the items acquired by the user and setting the winning probability of items already acquired by the user to zero. Including a mode that increases the probability that items that are not won will win,
The control method according to claim 1 or 2. In the item, at least one item information is set,
The plurality of lottery modes have different probabilities of winning for different item information,
The control method as described in any one of Claims 1 thru | or 3. The lottery mode increases the probability that a predetermined type of item will win among the plurality of types of items.
The control method according to claim 1 or 2. A server device connected via a communication line to a terminal device operated by a user,
Means for selecting one lottery mode from a plurality of lottery modes;
Means for performing lottery from a plurality of types of items based on the lottery mode when the one lottery mode is selected;
Means for providing the selected item to the terminal device when the lottery is performed;
With
Means for selecting a lottery mode of the one from a plurality of lottery mode, based on the game progress of the user, the server apparatus characterized by selecting one drawing mode. A server device connected via a communication line to a terminal device operated by a user,
Means for selecting one lottery mode from a plurality of lottery modes;
Means for performing lottery from a plurality of types of items based on the lottery mode when the one lottery mode is selected;
Means for providing the selected item to the terminal device when the lottery is performed;
With
Means for selecting a lottery mode of the one from a plurality of lottery mode, based on selection by the user, the server apparatus characterized by selecting one drawing mode. Computer
Means for selecting one lottery mode from a plurality of lottery modes;
Means for performing lottery from a plurality of types of items based on the lottery mode when the one lottery mode is selected;
Means for providing the winning item to the terminal device when the lottery is performed;
To function,
It means for selecting a lottery mode of the one from a plurality of lottery mode, based on the game progress of the user, a program and selects one drawing mode. Computer
Means for selecting one lottery mode from a plurality of lottery modes;
Means for performing lottery from a plurality of types of items based on the lottery mode when the one lottery mode is selected;
Means for providing the winning item to the terminal device when the lottery is performed;
To function,
It means for selecting a lottery mode of the one from a plurality of lottery mode, based on selection by the user, a program and selects one drawing mode.

Images