image not loading correctly
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| Can anyone help with the below? When the crosshair image and the target 1 image are both loaded and displayed they are the same image. When going through the debugger they have the same id. Is this a bug within blitz itself? if you need images etc I can email the whole program thanks ;========================================================================================== ;create globals Global gfx_x=640 Global gfx_y=480 Global gfx_colour_depth=16 Global target_image_width=40 Global target_image_height=40 Global target_found=0 Global target_id=0 Global target_mouseover=0 Global mouse_crosshair_image=LoadImage("gfx\crosshair.bmp") ;========================================================================================== ;create window Graphics gfx_x,gfx_y,gfx_colour_depth,0 ;screen =640,480,16 bit colour AppTitle="Shape Shoot" SetBuffer BackBuffer() ;SeedRnd MilliSecs();get better random result ;========================================================================================== ;create types Type target Field x=0 ;x pos Field y=0 ; y pos Field id ; id number of target Field hit=False ;target hit/miss Field image ;target graphic Field xmax ;max x postion of graphic on screen Field ymax ;max y postion of graphic on screen Field xmin ;min x postion of graphic on screen Field ymin ;min y postion of graphic on screen Field moveleft=0 ;is the target moving left or right? 0 right 1 left End Type ;========================================================================================== ;create objects from types ;#Region create target objects target_1.target=New target target_1\x=target_image_width target_1\y=target_image_height target_1\id=1 target_1\hit=False target_1\xmax=gfx_x-(target_image_width*2) target_1\ymax=gfx_y-(target_image_height*2) target_1\xmin=0+(target_image_width) target_1\ymin=0+(target_image_height) target_1\image=LoadImage("gfx\target.bmp") ;x40,y40 pixels target_1\moveleft=0 MaskImage (target_1\image,255,255,255) ;get rid of the surrounding white of the image target_2.target=New target target_2\x=target_image_width*4 target_2\y=target_image_height*4 target_2\id=2 target_2\hit=False target_2\xmax=gfx_x-(target_image_width*2) target_2\ymax=gfx_y-(target_image_height*2) target_2\xmin=0+(target_image_width) target_2\ymin=0+(target_image_height) target_2\image=LoadImage("gfx\target2.bmp") ;x40,y40 pixels target_2\moveleft=0 MaskImage (target_2\image,255,255,255) ;get rid of the surrounding white of the image ;#End Region ;========================================================================================== ;main loop While Not KeyHit (1) ;do below until ESC is press then quit If KeyDown (57) Then WaitKey ;if spacebar is pressed then pause ;clear the screen Cls ;draw the targets on the screen DrawImage target_1\image,target_1\x,target_1\y DrawImage target_2\image,target_2\x,target_2\y DrawImage mouse_crosshair_image, MouseX(), MouseY() Gosub move_targets ;check if mouse if over the position of targets If target_found=0 Then check_target_pos(1) If target_found=0 Then check_target_pos(2) target_found=0 ;reset target found flag Gosub target_debug ;display debug info ;flip the buffer screen Flip Wend End ;========================================================================================== ;functions Function check_target_pos(id) ;used to check the position of any targets on screen and find out if mouse is over/target shot Local target.target=Null target=get_target_id(id) ; try and find 'number' If target <> Null ; check to see whether it's found it. ;ok so i found the target number ;check if the mouse is over the target target_mouseover=ImageRectCollide (target\image, target\x, target\y,0, MouseX(),MouseY(),1, 1) ;if it is then get then find out which target it is over If target_mouseover=1 Then target_id=target\id ;get id of the target ;check to see if mouse button 1 is down If MouseDown(1) And target_mouseover=1 Then target\hit=1 target\image =LoadImage("gfx\target_hit.bmp") ;FreeImage target\image ;remove the target from the screen End If target_found=True ;we found it so no need to look anymore Else ;if mouse is not over any of the targets target_id=0 ;no target to find id of of target_found=False ;not found a target so keep looking until mouse is over a target End If ;target\x=Rand (target\xmin,target\xmax);move x pos of target to random x pos ;target\y=Rand (target\ymin,target\ymax);move y pos of target to random y pos Else EndIf End Function Function get_target_id.target(id) ;cycle through all available targets and return the id For i.target=Each target If i\id = id Then Return i ;return the id of the target we find Next End Function ;========================================================================================== ;subroutines etc ;move the targets around the screen ;#Region move targets .move_targets target_num=1 For target.target=Each target Select target_num Case 1 If target\moveleft=0 Then target\x=target\x+3 If target\x=>target\xmax Then target\moveleft=1 target\x=target\xmax End If Else target\x=target\x-3 If target\x<=target\xmin Then target\moveleft=0 target\x=target\xmin End If End If Case 2 If target\moveleft=0 Then target\x=target\x+5 If target\x=>target\xmax Then target\moveleft=1 target\x=target\xmax End If Else target\x=target\x-5 If target\x<=target\xmin Then target\moveleft=0 target\x=target\xmin End If End If End Select target_num=target_num+1 Next Return ;#End Region ;debug ;#Region debug .target_debug ;display mouse and target info for debug purpose y=390 For target.target=Each target Text(20,y,"target "+target\id +" x="+target\x+" y="+target\y+" xmin="+target\xmin +" xmax="+target\xmax+" ymin="+target\ymin +" ymax="+target\ymax) y=y+10 Next Text(20,y,"mouse x=" +MouseX() +" y=" +MouseY() +" button1=" +MouseDown(1) +" collide=" +target_mouseover) y=y+10 Text(20,y,"target id="+target_id) Return ;#End Region |
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| target_1 and target_2 are not global variables so can't be accessed by your functions. oops ignore that -.- |
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| target_1 and target_2 are not global variables so can't be accessed by your functions. @Shambler, I'm sorry but that is wrong. Any type pointer is automatic Global, even if it is not declared so. @gjpollitt, You are using: target_1.target=New target and target_2.target=New target I guess you want two separate target elements, sadly the target type collection is unique. That means that you don't have two separate target collections, but just one, named: target. Perhaps this is the problem.. Try to use an unique name instead of target_1 and target_2. You will sort it out quickly then. Another thing. In your main loop, you call the function << check_target_pos(id) >> at each loop. In that function, you have this statement: target\image =LoadImage("gfx\target_hit.bmp") You should never have any Load... command in a loop (or in a function called from a loop), otherwise the program will slow down, and lots of videomemory will be wasted. You should, instead, put all the Load... statements OUT from the main loop. Make a function called 'Initialization' which is outside of the main loop, and call it once. Put all the Load... (sound, images, models...) statements there, and live happy ! :) Hope this has sense for you, Sergio. |
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| ok ok, my fault the problem i am having is the mouse cursor bmp. The 2 target bmps are loaded fine no problems but when i load the bmp for the mouse_crosshair_image i get the bmp of target 1. How is that? even when the crosshair is loaded first i get the image of target 1? looking at the debug info the id of the 2 images is the same, target 2 image loads ok |
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| I've added some more info to my previous post. Read it carefully. Sergio. |
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| semar thanks for the help but the target\image =LoadImage("gfx\target_hit.bmp") is only loaded to either target 1 or 2 when it is hit ie mouse over and button 1 pressed. it will only be run the once. I cannot put it into an initialisation routine as the image prior to being hit is different so I load it with a target image, check if its been 'hit' then change the image if it has. The program runs fine, target 1 is red, target 2 is yellow, both move left to right at a set speed. Problem still is that mouse cursor is target 1 image, even though it has been set for its own unique image. Maybe it would be best for you to run the prog to see exactly what the problem is, but thanks for your input |
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