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Juicy camera shake effect #3

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Juicy camera shake effect #3

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26 changes: 24 additions & 2 deletions dynacam.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -310,7 +310,16 @@ local function enterFrame(event) -- Do not refactor! performance is better
focusRotationY = mathCos(radAngle) * values.currentY
rotationY = mathSin(radAngle) * values.currentX
finalY = (-rotationY - focusRotationY) * values.zoom


-- Shake Camera
if camera.values.shakeFrames > 0 then
if camera.values.shakeFrames % 2 == 1 then
finalX = finalX + (math.random(camera.values.shakeIntensity) - (camera.values.shakeIntensity/2))*(camera.values.shakeFrames/100)
finalY = finalY + (math.random(camera.values.shakeIntensity) - (camera.values.shakeIntensity/2))*(camera.values.shakeFrames/100)
end
camera.values.shakeFrames = camera.values.shakeFrames - 1
end

-- Apply x and y
camera.diffuseView.x = finalX
camera.diffuseView.y = finalY
Expand Down Expand Up @@ -503,6 +512,13 @@ local function cameraSetFocus(self, object, options)
self.values.trackRotation = trackRotation
end

local function cameraShake(self, frames, intensity)
if intensity > 1 then
self.values.shakeFrames = frames or 0
self.values.shakeIntensity = intensity or 16
end
end

local function finalizeCamera(event)
local camera = event.target

Expand Down Expand Up @@ -816,7 +832,11 @@ function dynacam.newCamera(options)
debug = false,

-- Buffer scaling
lightBufferScale = options.lightBufferScale or 1
lightBufferScale = options.lightBufferScale or 1,

-- Shake
shakeFrames = 0,
shakeIntensity = 16
}

setDimensions(camera, options)
Expand Down Expand Up @@ -857,6 +877,8 @@ function dynacam.newCamera(options)
camera.setFocus = cameraSetFocus
camera.removeFocus = cameraRemoveFocus
camera.toPoint = cameraToPoint

camera.shake = cameraShake

camera.addListenerObject = cameraAddListenerObject

Expand Down