CCEffectsTest - Add lighting parameter test

Tests manipulation of various light parameters including primary and ambient colors,
primary and ambient intensities, cutoff, and depth.

Author: Thayer J Andrews

cocos2d-ui-tests/tests/CCEffectsTest.m

@@ -294,7 +294,6 @@ -(void)setupSimpleLightingTest
 
         [sprite addChild:label];
 
-        
         [light runAction:[CCActionRepeatForever actionWithAction:[CCActionSequence actions:
                                                                   [CCActionMoveTo actionWithDuration:1.0 position:ccp(1.0f, 1.0f)],
                                                                   [CCActionMoveTo actionWithDuration:2.0 position:ccp(0.0f, 0.0f)],
@@ -307,6 +306,142 @@ -(void)setupSimpleLightingTest
     setupBlock(ccp(0.75f, 0.5f), CCLightDirectional, 1.0f, @"Directional Light\nPosition does not matter, orientation does.");
 }
 
+-(void)setupLightingParameterTest
+{
+    self.subTitle = @"Lighting Parameter Test";
+    
+    NSString *normalMapImage = @"Images/ShinyTorusNormals.png";
+    NSString *diffuseImage = @"Images/ShinyTorusColor.png";
+    
+    CCLightNode* (^setupBlock)(CGPoint position, NSString *title, CCAction *action) = ^CCLightNode*(CGPoint position, NSString *title, CCAction *action)
+    {
+        CCLightNode *light = [[CCLightNode alloc] init];
+        light.positionType = CCPositionTypeNormalized;
+        light.position = ccp(1.0f, 1.0f);
+        light.anchorPoint = ccp(0.5f, 0.5f);
+        light.intensity = 1.0f;
+        light.ambientIntensity = 0.2f;
+        light.cutoffRadius = 0.0f;
+        light.depth = 100.0f;
+        
+        CCSprite *lightSprite = [CCSprite spriteWithImageNamed:@"Images/snow.png"];
+        [light addChild:lightSprite];
+        
+        CCEffectLighting *lightingEffect = [[CCEffectLighting alloc] initWithLights:@[light]];
+        
+        CCSprite *sprite = [CCSprite spriteWithImageNamed:diffuseImage];
+        sprite.positionType = CCPositionTypeNormalized;
+        sprite.position = position;
+        sprite.normalMapSpriteFrame = [CCSpriteFrame frameWithImageNamed:normalMapImage];
+        sprite.effect = lightingEffect;
+        sprite.scale = 0.3f;
+        
+        [self.contentNode addChild:sprite];
+        
+        [sprite addChild:light];
+        
+        CCLabelTTF *label = [CCLabelTTF labelWithString:title fontName:@"HelveticaNeue-Light" fontSize:36 * [CCDirector sharedDirector].UIScaleFactor];
+        label.color = [CCColor whiteColor];
+        label.positionType = CCPositionTypeNormalized;
+        label.position = ccp(0.5f, 1.1f);
+        label.horizontalAlignment = CCTextAlignmentCenter;
+        
+        [sprite addChild:label];
+        
+        if (action)
+        {
+            [light runAction:action];
+        }
+        return light;
+    };
+
+    CCLightNode *light = nil;
+    light = setupBlock(ccp(0.25f, 0.65f), @"Varying Intensity", [CCActionRepeatForever actionWithAction:[CCActionSequence actions:
+                                                                                                         [CCActionTween actionWithDuration:2 key:@"intensity" from:0.0f to:1.0f],
+                                                                                                         [CCActionDelay actionWithDuration:2],
+                                                                                                         [CCActionTween actionWithDuration:2 key:@"intensity" from:1.0f to:0.0f],
+                                                                                                         nil
+                                                                                                         ]]);
+    light.ambientIntensity = 0.0f;
+    light = setupBlock(ccp(0.25f, 0.25f), @"Varying Color", [CCActionRepeatForever actionWithAction:[CCActionSequence actions:
+                                                                                                     [CCActionTintTo actionWithDuration:2 color:[CCColor redColor]],
+                                                                                                     [CCActionDelay actionWithDuration:1],
+                                                                                                     [CCActionTintTo actionWithDuration:2 color:[CCColor greenColor]],
+                                                                                                     [CCActionDelay actionWithDuration:1],
+                                                                                                     [CCActionTintTo actionWithDuration:2 color:[CCColor blueColor]],
+                                                                                                     [CCActionDelay actionWithDuration:1],
+                                                                                                     [CCActionTintTo actionWithDuration:2 color:[CCColor whiteColor]],
+                                                                                                     [CCActionDelay actionWithDuration:1],
+                                                                                                     nil
+                                                                                                     ]]);
+
+    
+    light = setupBlock(ccp(0.5f, 0.65f), @"Varying Ambient Intensity", [CCActionRepeatForever actionWithAction:[CCActionSequence actions:
+                                                                                                                [CCActionTween actionWithDuration:2 key:@"ambientIntensity" from:0.0f to:1.0f],
+                                                                                                                [CCActionDelay actionWithDuration:2],
+                                                                                                                [CCActionTween actionWithDuration:2 key:@"ambientIntensity" from:1.0f to:0.0f],
+                                                                                                                nil
+                                                                                                                ]]);
+    light = setupBlock(ccp(0.5f, 0.25f), @"Varying Ambient Color", nil);
+    light.intensity = 0.5f;
+    light.ambientIntensity = 0.5f;
+    
+    const float timeStep = 0.017f;
+    const float duration = 2.0f;
+    const float delta = timeStep / duration;
+    
+    typedef void (^AmbientLerpBlock)();
+    typedef void (^AmbientLerpBuilderBlock)(ccColor4F deltaC);
+    AmbientLerpBlock (^lerpBuilderBlock)(ccColor4F deltaC) = ^AmbientLerpBlock(ccColor4F deltaC)
+    {
+        AmbientLerpBlock lerpBlock = ^{
+            ccColor4F c = light.ambientColor.ccColor4f;
+            c.r += deltaC.r;
+            c.g += deltaC.g;
+            c.b += deltaC.b;
+            light.ambientColor = [CCColor colorWithCcColor4f:c];
+        };
+        return lerpBlock;
+    };
+
+    AmbientLerpBlock whiteRedLerp = lerpBuilderBlock(ccc4f(0.0f, -delta, -delta, 0.0f));
+    CCActionInterval *whiteRedLerpAction = [CCActionRepeat actionWithAction:[CCActionSequence actionOne:[CCActionDelay actionWithDuration:timeStep] two:[CCActionCallBlock actionWithBlock:whiteRedLerp]] times:120];
+    
+    AmbientLerpBlock redGreenLerp = lerpBuilderBlock(ccc4f(-delta, delta, 0.0f, 0.0f));
+    CCActionInterval *redGreenLerpAction = [CCActionRepeat actionWithAction:[CCActionSequence actionOne:[CCActionDelay actionWithDuration:timeStep] two:[CCActionCallBlock actionWithBlock:redGreenLerp]] times:120];
+    
+    AmbientLerpBlock greenBlueLerp = lerpBuilderBlock(ccc4f(0.0f, -delta, delta, 0.0f));
+    CCActionInterval *greenBlueLerpAction = [CCActionRepeat actionWithAction:[CCActionSequence actionOne:[CCActionDelay actionWithDuration:timeStep] two:[CCActionCallBlock actionWithBlock:greenBlueLerp]] times:120];
+    
+    AmbientLerpBlock blueWhiteLerp = lerpBuilderBlock(ccc4f(delta, delta, 0.0f, 0.0f));
+    CCActionInterval *blueWhiteLerpAction = [CCActionRepeat actionWithAction:[CCActionSequence actionOne:[CCActionDelay actionWithDuration:timeStep] two:[CCActionCallBlock actionWithBlock:blueWhiteLerp]] times:120];
+    
+    CCAction *ambientLerpAction = [CCActionRepeatForever actionWithAction:[CCActionSequence actions:
+                                                                           whiteRedLerpAction,
+                                                                           [CCActionDelay actionWithDuration:1],
+                                                                           redGreenLerpAction,
+                                                                           [CCActionDelay actionWithDuration:1],
+                                                                           greenBlueLerpAction,
+                                                                           [CCActionDelay actionWithDuration:1],
+                                                                           blueWhiteLerpAction,
+                                                                           [CCActionDelay actionWithDuration:1],
+                                                                           nil
+                                                                           ]];
+    [light runAction:ambientLerpAction];
+
+    light = setupBlock(ccp(0.75f, 0.65f), @"Varying Cutoff", [CCActionRepeatForever actionWithAction:[CCActionSequence actions:
+                                                                                                      [CCActionTween actionWithDuration:2 key:@"cutoffRadius" from:1.0f to:500.0f],
+                                                                                                      [CCActionTween actionWithDuration:2 key:@"cutoffRadius" from:500.0f to:1.0f],
+                                                                                                      nil
+                                                                                                      ]]);
+    light = setupBlock(ccp(0.75f, 0.25f), @"Varying Depth", [CCActionRepeatForever actionWithAction:[CCActionSequence actions:
+                                                                                                     [CCActionTween actionWithDuration:2 key:@"depth" from:1.0f to:500.0f],
+                                                                                                     [CCActionTween actionWithDuration:2 key:@"depth" from:500.0f to:1.0f],
+                                                                                                     nil
+                                                                                                     ]]);
+}
+
+
 -(void)setupPaddingEffectTest
 {
     self.subTitle = @"Effect Padding Test";