Messages

76

SFML wiki / Re: Zooming a view at a specified pixel

« on: June 02, 2017, 06:24:18 pm »

I'm sorry, better description:

I'm using your code from wiki and what I want to achieve:
- draw scene with sprites (sun) etc. + move view + zoom view to pixel
- draw GUI over this scene (this black box with text), 1:1, without any transformations

Scene: https://imgur.com/a/IIdk3

1) Your code without changes, working - https://youtu.be/olxO6OAgbQU

2) When I call window.setView(ViewGUI) - https://youtu.be/i6VovaULCxM

In first seconds is your function, it doesn't work anymore, it reset View.
From cca 5 sec. there is my code based on your, it works +- but view follows mouse cursor

I made global variable Zoom (zoom = zoom + 0.01) and put zoomViewAt() into drawing function.
Probably I can fix this mouse following but I'm not sure if it's right way or not, these view seems little bit tricky. The solution could be simpler as your suggestion. But I do not know exactly where to use it.

My code (it's not C but commands have similar syntax):

Procedure SFML_DRAW;
begin
  if ViewResized then begin // when is window resized
    sfRenderWindow_setSize(renderWindow, PanelSize_u );
    sfView_reset( View, ViewRect );
    sfView_reset( View_GUI, ViewRect_GUI );
    ViewResized := false;
  end;

// MAIN SCENE
  sfview_move( view, ViewPos );   // arrow keys = move view to sides

 // sfRenderWindow_setView( RenderWindow, View );
  zoomViewAt( mouse, RenderWindow, Zoom );   // Zoom
 // View := sfRenderWindow_getView( RenderWindow );

  // Draw sprites
  spr_Draw_I( renderWindow, tex_sun, sun_pos.x, sun_pos.y, 0, 0, 0 );
  spr_Draw_I( renderWindow, tex_sun, 200, 100, 0, 0, 0 );
  // Screen boundary
  Draw_Rect_Line( -1, -1, Form1.Panel1.width + 1, Form1.Panel1.height + 1, 180, sfGreen );

// GUI
  //sfView_reset( View, ViewRect );
  sfRenderWindow_setView( RenderWindow, View_GUI );

  Game.DrawInfo( Form1.Panel1.Width - 210, 0, 12 ); // Black box with text
end;

Controls:

    //GET_WHEEL_DELTA_WPARAM(wParam);
    WM_MOUSEWHEEL : if Smallint(HiWord(wParam)) < 0 then begin
       //sfRenderWindow_setView( RenderWindow, View );
       zoomViewAt( Mouse, RenderWindow, 1.1 );
       //View := sfRenderWindow_getView( RenderWindow );
    end else begin
       // sfRenderWindow_setView( RenderWindow, View );
       zoomViewAt( Mouse, RenderWindow, (1 / 1.1) );
       //View := sfRenderWindow_getView( RenderWindow );
     end;

  if sfKeyboard_isKeyPressed(sfKeyU)  = 1 then
    begin
      Zoom := Zoom + 0.01;
    end;

    if sfKeyboard_isKeyPressed(sfKeyI)  = 1 then
    begin
      if zoom > 0.01 then Zoom := Zoom - 0.01;
    end;
 

77

SFML wiki / Re: Zooming a view at a specified pixel

« on: May 31, 2017, 12:21:42 pm »

Nice code, but if I have next view for GUI and call window.setView(ViewGUI) it reset zoom. Is it possible to combine it?

78

SFML game jam / Re: Making a Jam on Itch io with prices

« on: May 26, 2017, 01:22:08 pm »

The idea is fine, but you're sure, that you want to send printed books over half the world? Maybe some symbolic rewards would be better.

Anyway, I don't need any prices, I want to defeat C/C++ SFML users with my miraculous Pascal code

About rules:
I'm only for own graphics and sound assets directly created for the project

79

Graphics / Re: Texture intersect - TiledMap(editor)

« on: April 16, 2017, 12:45:34 pm »

Hello,

you have very basic structure which only shows how draw with vertex arrays. But otherwise it's not very useful
I think. Read some articles about tilemaps.

You can have an array in which can be stored "ID" or pointer to your object (tree, castle).

ID:
0 - nothing
1 - tree 1
2 - tree 2
3 - castle

Some tips:
- map grid starts from [0;0] not [1;1]
- you draw whole map but you need draw only tiles which are on screen