102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
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//
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// SkyEntity.h
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/*
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*
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* Oolite
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*
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* Created by Giles Williams on Sat Apr 03 2004.
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* Copyright (c) 2004 for aegidian.org. All rights reserved.
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*
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Copyright (c) 2004, Giles C Williams
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All rights reserved.
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This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike License.
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To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/2.0/
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or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
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You are free:
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• to copy, distribute, display, and perform the work
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• to make derivative works
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Under the following conditions:
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• Attribution. You must give the original author credit.
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• Noncommercial. You may not use this work for commercial purposes.
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• Share Alike. If you alter, transform, or build upon this work,
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you may distribute the resulting work only under a license identical to this one.
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For any reuse or distribution, you must make clear to others the license terms of this work.
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Any of these conditions can be waived if you get permission from the copyright holder.
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Your fair use and other rights are in no way affected by the above.
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*/
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#import <Foundation/Foundation.h>
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#import "Entity.h"
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#define SKY_POINTS 2
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#define SKY_BILLBOARDS 3
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#define BILLBOARD_DEPTH 50000.0
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// 50 km away!
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#define SKY_MAX_STARS 480
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#define SKY_MAX_BLOBS 128
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#define SKY_BLOB_CLUSTER_CHANCE 0.80
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#define SKY_BLOB_ALPHA 0.10
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#define SKY_BLOB_SCALE 10.0
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#define SKY_BLOB_SCALE_PRIME 0.0005
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typedef struct
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{
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GLint texture_uv_array[ 4 * SKY_MAX_STARS * 2];
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GLfloat vertex_array[4 * SKY_MAX_STARS * 3];
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GLfloat color_array[4 * SKY_MAX_STARS * 4];
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} SkyStarsData;
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typedef struct
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{
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GLint texture_uv_array[ 4 * SKY_MAX_BLOBS * 2];
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GLfloat vertex_array[4 * SKY_MAX_BLOBS * 3];
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GLfloat color_array[4 * SKY_MAX_BLOBS * 4];
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} SkyBlobsData;
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@class Entity;
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@interface SkyEntity : Entity
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{
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int sky_type;
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NSColor *sky_color;
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GLuint star_textureName;
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GLuint blob_textureName;
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SkyStarsData starsData;
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SkyBlobsData blobsData;
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double blob_cluster_chance;
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double blob_alpha;
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double blob_scale;
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double blob_scale_prime;
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double delta;
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}
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- (id) initWithColors:(NSColor *) col1:(NSColor *) col2;
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- (id) initWithColors:(NSColor *) col1:(NSColor *) col2 andSystemInfo:(NSDictionary *) systeminfo;
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- (id) initAsWitchspace;
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- (void) set_up_billboards:(NSColor *) col1:(NSColor *) col2;
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- (NSColor *) sky_color;
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@end
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