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It includes a streamlined working environment, an enhance docking system with colored tab and aero-snap support, a searchable tree with faster performance, and a new improved button layout. The new clean and modern user interface is characterized by clarity and focusing on the essentials.

Multi-Changes at Once Table Viewer is now packed with box selection, including the ability to make multi-cell edit. Box selection allows you to select a rectangular region of cells within the grid by holding on and dragging the mouse. In Navicat 11, you cannot only delete but also replace and edit text on multiple cells at once, which we hope to reduce the capacity of typing and immensely increase your overall productivity on data entry work.

Connection Enhancement Every connection is all about stability security and reliability. Navicat now embeds a new SSH engine, which provides more encryption format and high-performance environments. So you never have to worry about making connection over an insecure network. This new update mechanism includes a service that monitors when an update becomes available, eliminating the need for you to track updates yourself. It ensures that you have the most up-to-date, stable, and secure versions of Navicat installed on your computer.

The Replace All function let you replace all matches in one go. The only way to use a Mac program or a Mac video game in Windows is to download the Windows-equivalent version. If there isn't one, then neither converting nor extracting a DMG file will be of any use.

If you want to make a bootable DMG file, you don't have to worry about converting it to a USB format with any of the tools mentioned above. This might happen if the file extension has been confused for DMG.

Again, neither formats are related to the DMG Mac file format, so if your file really ends in one of those extensions, you need GameMaker or GroupMail installed in order to use the file.

Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. The speed in pixels per step in the current direction.

You might think so, but no. The reason for this is that computer displays start drawing every new frame at the top of the screen, and work their way down. So they start at the 0th row of pixels, and count upward toward the bottom row of pixels. Just remember that the room coordinate system starts with its origin at top left, at 0,0 , and counts upward to positions that are vertically down from the origin. If you look at the value of hspeed , it will also be 8, even though you never directly set hspeed.

This means that hspeed and vspeed and speed are always accurate to the actual motion of the object in the game. This is very useful. One thing to note about this is that changes to hspeed or vspeed can change direction , but changes to absolute speed do not change direction.

An object with a negative hspeed will always have a direction between 90 and ; positive hspeed, a direction between or And object with a negative vspeed will have a direction between ; positive vspeed, between Watch how the values relate to each other as they change.

Gravity is very useful as a component of jumping mechanics, or for ballistic trajectories of flying objects. You can also use gravity for more novel purposes, such as to simulate the force of a strong wind pushing against objects, blowing them away. Gravity can be a little tricky to get right. We think of gravity in the real world as a force which attracts objects with mass towards one another.

In GameMaker, it is just a vector, a force which adds speed in a given direction. The official documentation recommends using a small value, such as 0. Over time, the acceleration due to gravity will add up, leading to very high speeds, which can lead to problems with collision detection see below. You can do this using the GML functions min , max , or clamp. In the real world, we think of gravity as a force which affects everything equally, but in GameMaker, gravity is set on a per-instance basis.

This could be used, for example, to create MC Escher spaces in 2D where gravity works differently for each object, depending which surface they are standing on.

Or for creating some objects that are affected by gravity while others are not. You cannot have multiple gravity forces acting on a single instance through the built-in GML gravity variable. Deceleration, slowing the instance, until speed reaches 0. Friction has no direction; by its nature it works in opposition to the present direction of the instance it is working on, by reducing its speed until it reaches 0. You can change the values of these functions in any mathematical way you can imagine.

Understanding the math is important to getting the behavior you expected. Instance is displaced by n, n pixels relative to current position. Instance rotates by n degrees toward the new direction each step until it faces the new direction. For controlled rotation, simply add or subtract from direction when the control event occurs. For example:. The variable turn is the number of degrees per step that the instance is able to turn. Adds a vector to the existing motion, preserving the original speed and motion and combining their values with the new vector.

Useful for simulating inertia. As you can see, most normal motion can be expressed through simple value assignment the equals sign or through addition or subtraction.

Other math is possible, of course. These numbers are just numbers, and you can perform any math on numbers. You can get some interesting effects using multiply, divide, exponents, square root, logarithms, trig functions, etc. One gml function that is very useful for movement is lerp , the linear interpolation function. You can even use lerp to extrapolate rather than interpolate, by using a value greater than 1 for the amt argument. The help file provides a cool example that you can use to predict the position of an instance one second in the future based on its current hspeed and vspeed:.

GML provides a few functions that are useful for determining where things are, which can help you know where you want to go:. Finally, you may want a position that is some distance from a point, in an arbitrary direction. To do this you can use trig functions;in GML, the trig functions all take the angle argument in radians, and direction is in degrees, so you have to convert direction to radians using degtorad. Actually, in GameMaker, there is a pair of functions that do this math for you. Download: Sprite rotation with inertia demo.

This approach is not right for all games, though. For example, the original Legend of Zelda had separate views of each side of each character: front, back, left, right. These were not simple rotations of the same image, but rather were different images depicting the character from the front, side, side, or back.

There are a lot of ways to implement a 4-sprite system. You could use a single object, and just change which sprite is drawn based on the direction the object is facing.

Or you could create a group of objects, each one representing the character facing a given direction. The four-object approach sounds like more work and more complexity, but it actually allows you to keep each object much simpler. Next, create all your sprites. So, this can be a lot more work to create all the graphics. The above example is easy to understand, but not optimized. If you want to avoid running unnecessary code, you can nest the if statements, or use a switch statement.

Note that the above approach will check and re-assign the sprite every single step. If you have a lot of instances to draw this way, it could hurt performance. If we can know when the direction will change, then we can know when to switch the sprite.

And knowing this is quite possible. User icon An illustration of a person's head and chest. Sign up Log in. Web icon An illustration of a computer application window Wayback Machine Texts icon An illustration of an open book. Books Video icon An illustration of two cells of a film strip.

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