Line data    Source code

       1           0 : /*
       2             : 
       3             : OOProbabilisticTextureManager.h
       4             : 
       5             : Manages a set of textures, specified in a property list, with associated
       6             : probabilities. To avoid interfering with other PRNG-based code, it uses its
       7             : own ranrot state.
       8             : 
       9             : 
      10             : Copyright (C) 2007-2013 Jens Ayton
      11             : 
      12             : Permission is hereby granted, free of charge, to any person obtaining a copy
      13             : of this software and associated documentation files (the "Software"), to deal
      14             : in the Software without restriction, including without limitation the rights
      15             : to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
      16             : copies of the Software, and to permit persons to whom the Software is
      17             : furnished to do so, subject to the following conditions:
      18             : 
      19             : The above copyright notice and this permission notice shall be included in all
      20             : copies or substantial portions of the Software.
      21             : 
      22             : THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      23             : IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      24             : FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      25             : AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      26             : LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      27             : OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
      28             : SOFTWARE.
      29             : 
      30             : */
      31             : 
      32             : #import <Foundation/Foundation.h>
      33             : #import "OOTexture.h"
      34             : #import "OOMaths.h"
      35             : 
      36             : 
      37           0 : @interface OOProbabilisticTextureManager: NSObject
      38             : {
      39             : @private
      40           0 :         unsigned                                _count;
      41           0 :         OOTexture                               **_textures;
      42           0 :         float                                   *_prob;
      43           0 :         int                         *_galaxy;
      44           0 :         float                                   _probMax;
      45           0 :         float                                   *_probMaxGal;
      46           0 :         RANROTSeed                              _seed;
      47             : }
      48             : 
      49             : /*      plistName is the name of the property list specifying the actual textures
      50             :         to use. The plist will be loaded from Config directories and merged. It
      51             :         should contain an array of dictionaries; each dictionary must have a
      52             :         "texture" entry specifying the texture file name (in Textures directories)
      53             :         and an optional "probability" entry (default: 1.0). As a convenience, an
      54             :         entry may also be a string, in which case probability will be 1.0.
      55             :         
      56             :         If no seed is specified, the current seed will be copied.
      57             : */
      58           0 : - (id)initWithPListName:(NSString *)plistName 
      59             :                                 options:(uint32_t)options
      60             :                          anisotropy:(GLfloat)anisotropy
      61             :                                 lodBias:(GLfloat)lodBias;
      62             : 
      63           0 : - (id)initWithPListName:(NSString *)plistName 
      64             :                                 options:(uint32_t)options
      65             :                          anisotropy:(GLfloat)anisotropy
      66             :                                 lodBias:(GLfloat)lodBias
      67             :                                    seed:(RANROTSeed)seed;
      68             : 
      69             : /*      Select a texture, weighted-randomly.
      70             : */
      71           0 : - (OOTexture *)selectTexture;
      72             : 
      73           0 : - (unsigned)textureCount;
      74             : 
      75           0 : - (void)ensureTexturesLoaded;
      76             : 
      77           0 : - (RANROTSeed)seed;
      78           0 : - (void)setSeed:(RANROTSeed)seed;
      79             : 
      80             : @end