game-engine

I am programming a raycasting game using SDL2. When drawing the floor, I need to call SDL_RenderCopy pixelwise. This leads to a bottleneck which drops the framerate below 10 fps. I am looking for performance boosts but can't seem to find some. Here's a rough overview of the performance drop: int main() { while(true) { for(x=0; x<800; x++) { for(y=0; y<600; y++) { SDL_Rect src = { 0, 0, 1, 1 }; SDL_Rect dst = { x, y, 1, 1 }; SDL_RenderCopy(ren, tx, &src, &dst); // this drops the framerate below 10 } } SDL_RenderPresent(ren); } } You should probably be using texture streaming for this. Basically

I have an image: newGameButton = pygame.image.load("images/newGameButton.png").convert_alpha() I then display it on the screen: screen.blit(newGameButton, (0,0)) How do I detect if the mouse is touching the image? sloth Use Surface.get_rect to get a Rect describing the bounds of your Surface , then use .collidepoint() to check if the mouse cursor is inside this Rect . Example: if newGameButton.get_rect().collidepoint(pygame.mouse.get_pos()): print "mouse is over 'newGameButton'" hammythepig I'm sure there are more pythonic ways to do this, but here is a simple example: button_x = 0 button_y =

I just want to know, that in the long run, using which of these engines will be better. Although I feel that using Cocos2D will be a better option, as it can also be used for iphone development, there's just 1 tutorial http://dan.clarke.name/2011/04/how-to-make-a-simple-android-game-with-cocos2d/ which I've found so far. libgdx, on the other hand has a complete book. Jong Consider using AndEngine . From a short look at libgdx, they seem similiar (Although AndEngine is 2D only). However, AndEngine has everything you need for a 2D game. The only thing it lacks is documentation, but it is open

I'm developing what it's turning into a "cross-platform" 2D Game Engine, my initial platform target is iPhone OS, but could move on to Android or even some console like the PSP, or Nintendo DS, I want to keep my options open. My engine is developed in C++, and have been reading a lot about Box2D and Chipmunk but still I can't decide which one to use as my Physics Middleware. Chipmunk appears to have been made to be embedded easily, and Box2D seems to be widely used. Chipmunk is C , and Box2D is C++, but I've heard the API's of Box2D are much worse than chipmunk's API's. For now I will be using

I'm trying to use Bullet physic engine to create a 3D world. I've got my character with a Capsule shape on his body and my ground his made of some static blocs stick together, here is a schema to illustrate my words: The problem is present when my character run from one block to another: Bullet detect a collision and my character start to jump a little bit on y-axis. How can I avoid the problem? What I did to overcome this issue is the following: Instead of have the capsule slide on the ground, I had a dynamic capsule ride on top of a spring. I implemented the spring as several ray casts