ios - Display a CCSprite seven times -


i beginner in cocos2d , wanted display 7 coins in horizontal pattern. wrote in main gameplay layer:

in init, have this

coins  = [ccsprite spritewithfile:@"coins.png"];

i made method coin patterns want in (display 7 times across)

- (void)coinpatterns {     coins.position = ccp(150,150);      for(int = 0; < 7; i++)     {         coins.position = ccp (coins.position.x + 20, coins.position.y);         [self addchild:coins];     } }

and added in update method

[self coinpatterns];

but reason, code keeps crashing. know how can fix this?

thanks!

i think want here create separate sprite node each coin, instead of reusing same 1 on , on (i'm not sure if works). this

- (void)coinpatterns {     nsinteger originalx = 150;     for(int = 0; < 7; i++)     {         ccsprite *coin = [ccsprite spritewithfile:@"coins.png"];         coin.position = ccp(originalx, 150);         originalx += 20;         [self addchild:coin];     } }

this creates 7 coins, each spaced 20. also, in code provided, 7 coins have been stacked on top of each other, since x value never incremented. if use this, it's unnecessary have variable or property coins.

if want access these coins later, example see if character hit them, make nsmutablearray property coinarray , add each coin array add line [self.coinarray addobject:coin]; for-loop under [self addchild:coin];. put them in array.

to detect collision, along lines of this

- (void)charactermoved:(ccsprite *)character  {     (ccsprite *coin in self.coinarray)     {         if (cgrectintersectsrect(coin.frame, character.frame)             // character , coin collided, add points or remove coin or      } }

this need have method charactermoved: fires every time character moves.


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