Quick and dirty frames per second meter for sparrow
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SXFPSMeter *meter = [[SXFPSMeter alloc] initWithText:@""]; | |
[self addChild:meter]; |
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#import <Foundation/Foundation.h> | |
#import "Sparrow.h" | |
@interface SXFPSMeter : SPTextField{ | |
} | |
- (void)update:(SPEnterFrameEvent*)event; | |
@end |
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#import "SXFPSMeter.h" | |
@implementation SXFPSMeter | |
- (id)initWithText:(NSString *)text{ | |
self = [super initWithText:text]; | |
self.hAlign = SPHAlignLeft; | |
self.vAlign = SPVAlignTop; | |
self.fontSize = 16; | |
self.color = 0xFF0000; | |
[self addEventListener:@selector(update:) atObject:self forType:SP_EVENT_TYPE_ENTER_FRAME]; | |
self.touchable = NO; | |
return self; | |
} | |
- (void)update:(SPEnterFrameEvent*)event{ | |
static int frameCount = 0; | |
static double totalTime = 0; | |
totalTime += event.passedTime; | |
if (++frameCount % 60 == 0){ | |
self.text = [NSString stringWithFormat:@"FPS: %f", frameCount/totalTime]; | |
frameCount = totalTime = 0; | |
} | |
} | |
- (void)dealloc{ | |
[self removeEventListener:@selector(update:) atObject:self forType:SP_EVENT_TYPE_ENTER_FRAME]; | |
[super dealloc]; | |
} | |
@end |
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missing a
self.touchable=NO;