CN100428279C - An animation implementation method and animation drawing system - Google Patents

Abstract

The invention provides a method for realizing animation and an animation drawing system, which belong to the technical field of games. The animation drawing system adopts the following steps: splitting the animation shape, obtaining pixels, setting pixel identifiers, and Integrate multiple split pixels into one image for saving; stitch the pixels to form frames, and set the playback sequence number in the animation for each frame, and store the pixel information of each frame and each frame in the animation The playback sequence number in is saved as animation data; the animation data is loaded into memory and the animation is drawn. This method enables the maximum reuse of image resources, reduces the space occupied by the game, and creates conditions for the improvement of the game quality in the handheld device.

Description

An animation implementation method and animation drawing system

technical field

The invention belongs to the technical field of games, and in particular relates to a method and system for realizing animation in games of a handheld device.

Background technique

With the development of the mobile phone industry, mobile games play an increasingly important role in the value-added services of mobile phones. At the same time, users have higher and higher requirements for the quality of mobile games. However, the capacity limitation of mobile phones has always been an important bottleneck affecting the performance of mobile games, in which picture resources occupy most of the space. If the capacity of the picture can be reduced by some means, it will provide more room for the game to play and improve the quality of the game. Therefore, it is very necessary to reduce the capacity occupied by pictures in mobile games as much as possible.

Animation is essentially a dynamic effect obtained by sequentially drawing a series of static frames at a certain rate. In mobile games, frame drawing is to use the API (Application Programming Interface) provided by the device platform to draw a picture on the screen. The animation drawing is the process of continuously redrawing by controlling the drawing rate of the frame in the main loop of the game to produce a dynamic effect.

The currently commonly used drawing method is sequential drawing in time series. Using this method, for complex character animation, it is necessary to draw a complete picture for each frame of character animation. For example, the continuous animation part of a character walking needs at least 4 frames to achieve the most basic effect. In fact, the difference between each picture is very small. For example, the difference between the frame and the frame is only the hands and feet when the character is walking, and the character as a whole has not changed greatly. Therefore, repeatedly drawing the same part of the picture will cause The waste of space occupied by pictures reduces the utilization efficiency of pictures for capacity resources.

Contents of the invention

The main purpose of the present invention is to provide a method and system for realizing animation so as to improve the utilization efficiency of animation pictures for capacity resources.

For realizing the purpose of the invention, the present invention provides a kind of animation realization method, and this method comprises steps:

Split the animation shape, get the pixel, set the pixel identifier, and integrate the split multiple pixels into one image for saving;

Splicing the pixels to form a frame, and setting the playback sequence number in the animation for each frame, saving the pixel information of each frame and the playback sequence number of each frame in the animation as animation data;

Load said animation data into memory and draw the animation.

Wherein, at least one picture stores all the pixels in a period of animation.

Wherein, the animation modeling is character modeling, prop modeling or background object modeling.

Wherein, the pixel information of the frame includes: a pixel identifier and a position of the pixel in the frame.

Wherein, the described steps of drawing animation are specifically:

According to the animation identifier, obtain the play sequence of the animation, traverse the play sequence, and obtain a play sequence number for each game loop;

Obtain the pixel information of the current frame according to the playback sequence number;

Acquire the pixel according to the pixel identifier in the pixel information, and draw according to the position of the pixel in the current frame.

In order to realize the purpose of the invention, the present invention provides a kind of animation drawing system, and this system comprises: animation editing unit, animation storage unit, animation playback unit, wherein:

The animation editing unit splits the animation shape into pixels, sets the ID of the pixels, integrates the split pixels into one picture and saves them in the animation storage unit, obtains the pixels from the animation storage unit and stitches them together to form a frame , set the playback sequence number for the frame, and store the pixel information of the frame and the playback sequence number of the frame as animation data in the animation storage unit;

An animation storage unit, which stores the graph, pixel ID, and animation data obtained by integrating multiple pixels;

The animation playback unit obtains animation data from the animation storage unit and loads them into memory for animation drawing.

Wherein, the plurality of pixels are at least all pixels in an animation.

Wherein, the animation modeling is character modeling, prop modeling or background object modeling.

Wherein, the pixel information of the frame includes: a pixel identifier and a position of the pixel in the frame.

It can be seen that by splitting the animation shape into pixels and splicing them to form frames, the drawing of the animation can be completed according to the pixel information of the frames and the playback sequence number. Since what is saved are pixels instead of a series of frames with little difference, a large number of pixels can be reused, which greatly reduces the resources occupied by animation, improves the utilization efficiency of resources, and improves the game quality. Space is created.

Integrating multiple split pixels into one image for storage further reduces the space occupied by the image, avoids reading multiple image resources, saves reading time, and thus improves the game quality.

The editing work of the pictures is done by the artists, and the programmers only need to implement the animation playback unit and directly load the animation data generated by the animation editing unit, thus reducing the workload of game production.

Description of drawings

Fig. 1 is a flowchart of an embodiment of the present invention;

Fig. 2 is a flowchart of another embodiment of the present invention;

Fig. 3 is a system structure diagram of the present invention.

Detailed ways

The present invention is a method and system for realizing animation, and its core idea is: by extracting the common parts of the animation modeling into components, and combining each component through splicing, the display effect exactly the same as that of the original animation can be realized, and at the same time, the animation can be greatly reduced. The occupied capacity of the picture is reduced.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

Referring to Fig. 1, the realization method of the present invention is illustrated.

Step 11: Split an animation shape. For example, split a character shape into head, limbs, torso, etc.

Step 12: Acquire all motion shapes in all frames of all animations of each part of the split animation shape as pixels.

Step 13: uniquely store the pixels, each pixel has a unique ID (Identifier, identifier) for identification.

Step 14: Stitch the pixels to form a frame, and set the playback sequence number in an animation for each frame, and use the pixel information in each frame and the playback sequence number of each frame in the animation as animation data to save.

Animation data consists of static frame data and playback sequence data, and these two parts together form an animation.

Among them, the static frame data is a data file that stores pixel information in a frame of pictures, and each piece of static frame data includes the pixel ID referenced by this frame and the relative position coordinates of the pixel in the frame and the origin, so that All the information of the pixels contained in a static frame is saved. For example, the data of frame 1 is [Pixel 1-X-Y] [Pixel 2-X-Y] [Pixel 3-X-Y], where X, Y are the relative position coordinates of each pixel in frame 1 to the origin.

Usually a complete animation requires several static frames to be played in a sequence in a certain order, so it can be regarded as an animation, so the essence of the playback sequence is a series of static frame numbers, such as 1, 2, 3, 2, 3.. ....form.

Step 15: Load animation data into memory and draw.

The animation drawing process in the game is as follows:

Step 151: Obtain the play sequence of the animation according to the animation number, traverse the play sequence, and obtain a play sequence number for each game cycle.

Step 152: Obtain the pixel information data of the current frame according to the playback sequence number.

Step 153: Obtain the pixel according to the pixel ID, and draw according to the position of the pixel in the current frame.

Step 154: After all the pixels are drawn, the display of the current frame is completed, and the next game loop is performed.

In the above-mentioned embodiments, storing each pixel separately will occupy more resources, and reading multiple image resources will increase the reading time. If multiple pixels are integrated into one image, the space occupied by the image can be relatively reduced, which can further save image resource space, speed up the reading of images, and improve the game quality. We refer to pictures that hold multiple pixels as "integrated pictures". The following is the method of drawing animation using this method, refer to Figure 2.

Step 21: In the process of game art design, split animation modeling. Animation modeling can be various character modeling, prop modeling, background object modeling and so on.

Step 22: Obtain all shapes of each part of the divided animation shape in all frames of all animations, which are called pixels.

Step 23: Save multiple pixels in an integrated map. There can be multiple integration maps in a game.

Step 24: Save the ID of each pixel in the integrated graph and the position information of the pixel in the integrated graph.

Step 25: Splicing the pixels in the integrated picture to form frames, and setting a playback sequence number in the animation for each frame, using the pixel information in each frame and the playback sequence number of each frame in the animation as animation The data is saved.

Step 26: Load animation data into memory and draw.

The animation drawing process in the game is as follows:

Step 261: Obtain the play sequence of the animation according to the animation number, traverse the play sequence, and obtain a play sequence number for each game cycle.

Step 262: Obtain the pixel information data of the current frame according to the playback sequence number.

Step 263: Obtain the position of the pixel in the integrated graph according to the pixel ID, thereby obtaining the pixel, and draw according to the position of the pixel in the current frame.

Step 264: After all the pixels are drawn, the display of the current frame is completed, and the next game loop is performed.

If you can consider the similarity of pictures when drawing, you can also make pictures more fully reused. For example, in the designed game, there are two characters, some parts of the two characters are the same, for example, the heads of the two characters are exactly the same, at this time, for the heads of the two characters, There is no need to reserve two pixels separately, only one pixel needs to be reserved.

In the above embodiments, the source of the pixels in a segment of animation is not restricted. The problem is that if the pixels in each segment of animation can be referenced from any integrated graph, it will inevitably result in a large amount of reference location information. For example: in an animation, one of the static frames contains 3 pixels, and these 3 pixels are respectively referenced from "integrated image 1", "integrated image 2" and "integrated image 3". After saving the static frame pixels When information data, it is necessary to save the information of the integrated image for each pixel. In this example, the data of the saved static frame is: [integrated image 1-pixel 1-X-Y][integrated image 2-pixel 2 -X-Y] [Integrated Figure 3-Pixel 3-X-Y].

In order to save data and simplify the reference relationship between static frames and integrated graphs, when integrating pixels, all the pixels of all static frames in an animation are integrated into an integrated graph, which ensures that there is no need to Each pixel saves the integrated image ID where it is located, and the above static frame pixel information data becomes [Picture 1-X-Y] [Picture 2-X-Y] [Picture 3-X-Y], correspondingly, in the process When drawing, according to the animation number, you can obtain the number of the integrated map referenced by the animation, and then obtain the pixel data information of each frame according to the animation playback sequence, and draw according to the position of the pixel in the current frame. The specific process is the same as The specific drawing process of the animation in the above two embodiments is the same and will not be described in detail.

With this method, a certain amount of capacity can be saved when there are many pixels, and the inductive method of the pixels is also easy to manage.

However, it is not advisable to save all the pixels of all animations in a game on one image, because this will make the image too large, and due to the limited capabilities of handheld devices such as mobile phones, it will make the loading time too long, which will affect the game instead. quality.

The present invention also provides a kind of animation drawing system, as shown in Figure 3, this system comprises: animation editing unit 31, animation storage unit 32, animation playback unit 33, wherein:

The animation editing unit 31 splits the animation modeling into pixels and saves them to the animation storage unit 32, obtains the pixels from the animation storage unit 32 and splices them to form a frame, sets the playback sequence number for the frame, and stores the pixel information of the frame And the playback sequence number of this frame is stored in animation storage unit 32 as animation data;

An animation storage unit 32 stores picture elements, picture element IDs, and animation data;

The animation playback unit 33 acquires animation data from the animation storage unit 32 and loads them into the internal memory to perform animation drawing.

In order to further reduce the capacity of the game picture and reduce the time to read the picture, multiple pixels can be integrated into one picture for storage. At this time, the animation editing unit is also used to integrate the divided multiple pixels into A graph is stored in the animation storage unit, and the pixels stored in the animation storage unit exist in the form of an integrated graph. The animation storage unit also saves the integrated image ID and the position information of each pixel in the integrated image. At this time, the pixel information data of the static frame includes the integrated image ID, the pixel ID, and the position information of the pixel in the current frame.

In order to save the amount of data and simplify the reference relationship between the static frame and the integrated graph, all the pixels used to form an animation come from an integrated graph, thus ensuring that it is not necessary to save it for each pixel in the drawing of an animation The integration map ID where it is located. At this time, the pixel information data of the static frame only includes the pixel ID and the position information of the pixel in the current frame.

However, it is not suitable to save all the pixels of all animations in a game on one integrated map, because this will make the picture too large, and due to the limited capabilities of mobile phones and other handheld devices, it will make the loading time too long, which will affect the game instead quality.

The implementation method and animation drawing system of a kind of animation provided by the present invention have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understanding The core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (9)

1. A method for realizing animation, characterized in that, comprising: Split the animation shape, get the pixel, set the pixel identifier, and integrate the split multiple pixels into one image for saving; Splicing the pixels to form a frame, and setting the playback sequence number in the animation for each frame, saving the pixel information of each frame and the playback sequence number of each frame in the animation as animation data; Load said animation data into memory and draw the animation. 2. the realization method of animation as claimed in claim 1, is characterized in that, All the pixels in at least one segment of the animation are stored in the one picture. 3. The method for realizing animation according to claim 1, wherein the animation modeling is character modeling, prop modeling or background object modeling. 4. The method for realizing animation according to claim 1, wherein the pixel information of the frame comprises: a pixel identifier and a position of the pixel in the frame. 5. The method for realizing animation as claimed in claim 1 or 4, wherein the step of drawing animation is specifically: According to the animation identifier, obtain the play sequence of the animation, traverse the play sequence, and obtain a play sequence number for each game cycle; Obtain the pixel information of the current frame according to the playback sequence number; Acquire the pixel according to the pixel identifier in the pixel information, and draw according to the position of the pixel in the current frame. 6. An animation drawing system, characterized in that, comprising: an animation editing unit, an animation storage unit, and an animation playback unit, wherein: The animation editing unit splits the animation shape into pixels, sets the ID of the pixels, integrates the split pixels into one picture and saves them in the animation storage unit, obtains the pixels from the animation storage unit and stitches them together to form a frame , set the playback sequence number for the frame, and store the pixel information of the frame and the playback sequence number of the frame as animation data in the animation storage unit; An animation storage unit, which stores the graph, pixel ID, and animation data obtained by integrating multiple pixels; The animation playback unit obtains animation data from the animation storage unit and loads them into memory for animation drawing. 7. The animation drawing system according to claim 6, wherein the plurality of pixels are at least all pixels in a section of animation. 8. The animation drawing system according to claim 6, wherein the animation modeling is character modeling, prop modeling or background object modeling. 9. The animation drawing system according to claim 6, wherein the pixel information of the frame includes: a pixel identifier and a position of the pixel in the frame.

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