OOExplosionCloudEntity(OOPrivate) Category Reference

Instance Methods
(id)	- initExplosionCloudWithEntity:size:andSettings:

Detailed Description

Definition at line 52 of file OOExplosionCloudEntity.m.

Method Documentation

initExplosionCloudWithEntity:size:andSettings:

- (id) initExplosionCloudWithEntity:		(Entity *)	entity
size:		(float)	size
andSettings:		(NSDictionary *)	settings

Extends class OOExplosionCloudEntity.

Definition at line 49 of file OOExplosionCloudEntity.m.

                                   :(Entity *)entity size:(float)size andSettings:(NSDictionary *)settings
{
    unsigned i;
    unsigned maxCount = [UNIVERSE detailLevel] <= DETAIL_LEVEL_SHADERS ? 10 : 25;
    HPVector pos = [entity position];
    Vector vel = [entity velocity];
 
    if (settings == nil) {
        _settings = [[NSDictionary dictionary] retain];
    } else {
        _settings = [settings retain];
    }
 
    unsigned count = [_settings oo_unsignedIntForKey:kExplosionCount defaultValue:25];
    if (count > maxCount) {
        count = maxCount;
    }
 
    if (size == 0.0) {
        size = [entity collisionRadius]*[_settings oo_floatForKey:kExplosionSize defaultValue:kExplosionDefaultSize];
    }
 
    _growthRate = [_settings oo_floatForKey:kExplosionGrowth defaultValue:kGrowthRateFactor] * size;
    _alpha = [_settings oo_floatForKey:kExplosionAlpha defaultValue:kExplosionCloudAlpha];
    _brightnessMult = [_settings oo_floatForKey:kExplosionBrightness defaultValue:kExplosionBrightnessMult];
    if (_brightnessMult < 1.0f)  _brightnessMult = 1.0f;
    _cloudDuration = [_settings oo_doubleForKey:kExplosionDuration defaultValue:kExplosionCloudDuration];
 
    GLfloat spread = [_settings oo_floatForKey:kExplosionSpread defaultValue:1.0];
 
    NSString *textureFile = [_settings oo_stringForKey:kExplosionTexture defaultValue:@"oolite-particle-cloud2.png"];
    
    _texture = [[OOTexture textureWithName:textureFile
                                  inFolder:@"Textures"
                                   options:kOOTextureMinFilterMipMap | kOOTextureMagFilterLinear | kOOTextureAlphaMask
                                anisotropy:kOOTextureDefaultAnisotropy
                                   lodBias:0.0] retain];    
    if (_texture == nil) 
    {
        [self release];
        return nil;
    }
 
    GLfloat baseColor[4] = {1.0,1.0,1.0,1.0};
 
    if (magnitude2(vel) > 1000000)
    {
        // slow down rapidly translating explosions
        vel = vector_multiply_scalar(vector_normal(vel),1000);
    }
 
    if ((self = [super initWithPosition:pos velocity:vel count:count minSpeed:size*0.8f*spread maxSpeed:size*1.2f*spread duration:_cloudDuration baseColor:baseColor]))
    {
        NSString *color_order = [_settings oo_stringForKey:kExplosionColors defaultValue:@"rgb"];
        
        for (i=0;i<count;i++) 
        {
            if ([color_order isEqualToString:@"white"]) {
                // grey
                _particleColor[i][0] = _particleColor[i][1] = _particleColor[i][2] = randf();
            } else {
                float c1 = randf();
                float c2 = randf();
                float c3 = randf();
                if (c2 > c1) {
                    c2 = c1;
                }
                if (c3 > c2) {
                    c3 = c2;
                }
                if ([color_order isEqualToString:@"rgb"]) 
                {
                    _particleColor[i][0] = c1;
                    _particleColor[i][1] = c2;
                    _particleColor[i][2] = c3;
                }
                else if ([color_order isEqualToString:@"rbg"]) 
                {
                    _particleColor[i][0] = c1;
                    _particleColor[i][1] = c3;
                    _particleColor[i][2] = c2;
                }
                else if ([color_order isEqualToString:@"grb"]) 
                {
                    _particleColor[i][0] = c2;
                    _particleColor[i][1] = c1;
                    _particleColor[i][2] = c3;
                }
                else if ([color_order isEqualToString:@"gbr"]) 
                {
                    _particleColor[i][0] = c3;
                    _particleColor[i][1] = c1;
                    _particleColor[i][2] = c2;
                }
                else if ([color_order isEqualToString:@"brg"]) 
                {
                    _particleColor[i][0] = c2;
                    _particleColor[i][1] = c3;
                    _particleColor[i][2] = c1;
                }
                else if ([color_order isEqualToString:@"bgr"]) 
                {
                    _particleColor[i][0] = c3;
                    _particleColor[i][1] = c2;
                    _particleColor[i][2] = c1;
                }
 
            }
            
            _particleColor[i][0] *= _brightnessMult;
            _particleColor[i][1] *= _brightnessMult;
            _particleColor[i][2] *= _brightnessMult;
            _particleColor[i][3] = _alpha;
        }
    }
    return self;
}

---

The documentation for this category was generated from the following file:

• src/Core/Entities/OOExplosionCloudEntity.m