ImageRectCollide and MoveMouse()
Monkey Forums/Monkey Programming/ImageRectCollide and MoveMouse()
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| Just going through my folders of old Blitz code and have come across some stuff that I have tried to convert to Monkey. However, the code uses MoveMouse() and ImageRectCollide(), which obviously are not in Monkey. I know I can use a simple Rect->Rect check for simple collision, but aside from the Frameworks is there still no implementation of proper image based collisions in Monkey? Also I realise MoveMouse() is not needed on iOS/Android etc, but is there any workaround or function I could use in its place for Windows? |
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| To determine if the mouse moved: [monkeycode] Field MouseMoved:Bool, LastMouseX:Float, LastMouseY:Float Method OnUpdate:Int() MouseMoved = False If MouseX() <> LastMouseX Or MouseY() <> LastMouseY Then MouseMoved = True LastMouseX = MouseX(); LastMouseY = MouseY() Return 0 End Method [/monkeycode] To determine if rects overlap: [monkeycode] Class rect int x int y int width int height Method New(x:Float, y:Float, width:Float, height:Float) Self.x = x; Self.y = y; Self.width = width; Self.height = height End Method End Class Function valueInRange:Bool(value:Float, min:Float, max:Float) Return (value >= min) And (value <= max) End Function Function rectsOverlap:Bool(rect A, rect B) Local xOverlap:Bool = valueInRange(A.x, B.x, B.x + B.width) Or valueInRange(B.x, A.x, A.x + A.width) Local yOverlap:Bool = valueInRange(A.y, B.y, B.y + B.height) Or valueInRange(B.y, A.y, A.y + B.height) Return xOverlap And yOverlap End Function [/monkeycode] There is no function for checking images mask for overlap or collision in Mojo. However, you can use this bounding box function to serve as a first-pass for writing your own using Monkey's pixel methods. However, I'd recommend instead considering a system where you create and handle your own masks manually and import them into arrays, if faster pixel-perfect precision is what you're looking for. In many cases, though, a bounding box or series of them (or a circle) does suffice. There are a number of overlap functions for various shapes on this forum, so consider what you're looking for in your game and proceed accordingly. edit: jeez, what happened to pretty syntax highlighting? |
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| Hey Noboyuki, thanks a lot for the reply. I forgot to update this thread, but I already coded workarounds for these and a few others a couple of hours after posting, but thanks you for taking the time to help. :) |
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