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//
// Scratch and See
//
// The project provides en effect when the user swipes the finger over one texture
// and by swiping reveals the texture underneath it. The effect can be applied for
// scratch-card action or wiping a misted glass.
//
// Copyright (C) 2012 http://moqod.com Andrew Kopanev <andrew@moqod.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
// of the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#import "MDMatrix.h"
@interface MDMatrix () {
char *_data;
}
@end
@implementation MDMatrix
- (id)initWithMaxX:(size_t)x MaxY:(size_t)y {
if (self = [super init]) {
_data = (char *) malloc(x * y);
_max = MDSizeMake(x, y);
[self fillWithValue:0];
}
return self;
}
- (id)initWithMax:(MDSize) maxCoords {
return [self initWithMaxX:maxCoords.x MaxY:maxCoords.y];
}
#pragma mark -
- (char)valueForCoordinates:(size_t)x y:(size_t)y {
long index = x + self.max.x * y;
if (index >= self.max.x * self.max.y){
return 1; //NSAssert(0, @"I should not to be here! :( ");
} else {
return _data[x + self.max.x * y];
}
}
- (void)setValue:(char)value forCoordinates:(size_t)x y:(size_t)y {
long index = x + self.max.x * y;
if (index < self.max.x * self.max.y){
_data[x + self.max.x * y] = value;
}
}
- (void)fillWithValue:(char)value {
char *temp = _data;
for(size_t i = 0; i < self.max.x * self.max.y; ++i){
*temp = value;
++temp;
}
}
#pragma mark -
- (void)dealloc {
if(_data){
free(_data);
}
#if !(__has_feature(objc_arc))
[super dealloc];
#endif
}
@end