Monkey-X - Random Colored Textures - code example

Import mojo

Global screenwidth:Int=640
Global screenheight:Int=480


Class texture

    Field mapimage:Image
    Field mappixels:Int[]
    Field map:Int[][]
    Field iw:Int=screenwidth
    Field ih:Int=screenheight

    Field sc:Int=1'Rnd(1,3)
    Method New()   
        mappixels = New Int[iw*ih]
        mapimage = CreateImage(iw,ih)
        map = New Int[iw][]
        For Local i = 0 Until iw
            map[i] = New Int[ih]
        Next

        render1()

    End Method
    Method render1()        
        'noisey layer
        noisylayer()
        If Rnd()<.5 Then cellularlayer()



        ' lines down
        If Rnd()<.5
        Local c:Int=Rnd(1,5)
        For Local i=0 Until c
        Local val:Int=Rnd(-60,60)
        If Rnd()<.5 Then val = Rnd(2,10)
        Local y:Int=0
        Local v1:Int=Rnd(6,20)
        Local v2:Int=Rnd(2,v1)
        While y<ih
        For Local x=0 To iw
            For Local i=0 To v2
            decmappixel(x,y+i,val)
            Next
        Next
        y+=v1
        Wend
        Next
        End If
        ' line right
        If Rnd()<.5
        Local c:Int=Rnd(1,5)
        For Local i=0 Until c
        Local val:Int=Rnd(-60,60)
        If Rnd()<.5 Then val = Rnd(2,10)
        'For Local x=0 To iw Step 8
        Local v1:Int=Rnd(3,iw/20)
        Local v2:Int=Rnd(2,v1)
        Local x=0
        While x<iw
        For Local y=0 To ih 
            For Local i=0 To v2
            decmappixel(x+i,y,val)
            Next
        Next
        x+=v1
        Wend
        Next
        End If
        'lines right
        If Rnd()<.5
        Local c:Int=Rnd(1,5)
        For Local i=0 Until c
        Local val:Int=Rnd(-60,60)
        If Rnd()<.5 Then val = Rnd(2,10)
        Local y:Int=0
        Local v1:Int=Rnd(3,ih/10)
        Local v2:Int=Rnd(2,v1)
        'For Local y=0 To ih Step 8
        While y<ih
        For Local x=0 To iw
            For Local i=0 To v2
            addmappixel(x,y+i,val)
            If Rnd()<.5 Then addmappixel(x+i,y,val)
            Next
        Next
        y+=v1
        Wend
        Next
        End If
        ' lines down
        If Rnd()<.5
        Local c:Int=Rnd(1,5)
        For Local i=0 Until c
        Local t:Int=Rnd(1,5)
        For Local i=0 Until t
        Local val:Int=Rnd(-60,60)
        If Rnd()<.5 Then val = Rnd(2,10)
        Local v1:Int=Rnd(3,iw/5)
        Local v2:Int=v1/2
        Local x:Int=0
        While x<iw
        For Local y=0 To ih 
            For Local i=0 To v2
            addmappixel(x+i,y,val)
            If Rnd()<.5 Then addmappixel(x+i,y,val)
            Next
        Next
        x+=v1
        Wend
        Next
        Next
        End If
        'diagonal lines
        If Rnd()<.5
        Local c:Int=Rnd(1,5)
        For Local i=0 Until c
        Local val:Int=Rnd(-60,60)
        If Rnd()<.5 Then val = Rnd(2,10)
        Local x:Int=0
        Local x1:Int=-iw
        Local v1:Int=Rnd(8,iw/5)
        Local v2:Int=Rnd(3,v1)
        While x1<iw 
        For Local y=0 To ih
            For Local i=0 To v2
                addmappixel(x1+(x+i),y,val)
                'If Rnd()<.5 Then addmappixel(x1+(x+i),y)
            Next
            x+=1
        Next
        x=0
        x1+=v1
        Wend
        Next
        End If

        'blocks
        If Rnd()<.5
            Local x1:Int=0
            Local y1:Int=0
            Local sw:Int=Rnd(15,iw/10)
            Local sh:Int=Rnd(15,ih/10)
            Local sx:Int=Rnd(sw,sw*2)
            Local sy:Int=Rnd(sh,sh*2)
            Local t:Int
            If Rnd()<.5 Then 
                t=Rnd(-80,-30)
                Else 
                t=Rnd(30,80)
            End if
            While y1<ih
                addr2(x1,y1,sw,sh,t)
                x1+=sx
                If x1>iw
                x1=0
                y1+=sy
                End If                
            Wend
        End If


        'triangle up
        If Rnd()<.2 Then addtriangleup
        
        'triangle down
        If Rnd()<.2 Then addtriangledown


        'triangle left
        If Rnd()<.2 Then addtriangleleft
        'triangle Right
        If Rnd()<.2 Then addtriangleright
        If Rnd()<.2 Then addoval()            
        If Rnd()<.5 Then addheightmap
        tintmap
        mapimage.WritePixels(mappixels, 0, 0, iw, ih, 0)
    End Method

    Method update()
        
    End Method

    Method cellularlayer()
        'cellular layer
        For Local y=0 Until ih
        For Local x=0 Until iw
            If Rnd()<.5 Then
                map[x][y] = 1
            Else            
                map[x][y] = 0
            End If
        Next
        Next
        For Local i=0  Until 2
        ' loop through the map
        For Local y=0 Until ih
        For Local x=0 Until iw
            'count the neigbouring 1's 
            Local cnt = 0
            For Local y1=-1 To 1
            For Local x1=-1 To 1
                Local x2=x+x1
                Local y2=y+y1
                If x2>=0 And y2>=0 And x2<iw And y2<ih
                    If map[x][y] = 1 Then cnt+=1
                End If
            Next
            Next
            ' if 3 walls and map is a wall then map x,y is not a wall anymore
            If cnt < 4                
                    map[x][y] = 0
            End If
            ' if more then 4 walls then map x,y is wall
            If cnt >= 5 Then map[x][y] = 1
        Next
        Next
        Next

        For Local x=0 Until iw
        For Local y=0 Until ih
            If map[x][y] = 1 Then 
            addr2(x,y,1,1,100)
            Else
            addr2(x,y,1,1,40)
            End If
        Next
        Next
    End Method


    Method noisylayer()    
        Local var1:Int=Rnd(3,130)
        Local var2:Int=Rnd(20,200)
        Local depth:Int=Rnd(1,25)
        For Local i=0 To iw*ih*depth
            Local x1:Int=Rnd(iw)
            Local y1:Int=Rnd(ih)
            Local cnt:Int=0
            For Local y2=-5 To 5
            For Local x2=-5 To 5
                Local x3:Int=x1+x2
                Local y3:Int=y1+y2
                If x3>=0 And x3<iw And y3>=0 And y3<ih
                If getred(getmappixel(x3,y3)) > var2 Then
                    'addmappixel(x3,y3)
                    cnt+=1    
                End If
                End If
            Next
            Next
            If cnt<var1
                addmappixel(x1,y1,Rnd(2,20))
            End If
            cnt=0
        Next
    End Method
    Method addtriangleup()
        Local val:Int=Rnd(-120,120)
        If Rnd()<.5 Then val = Rnd(2,10)
        Local wa:Float=0
        Local wb:Float=iw 
        Local s:Float=Float(ih)/Float(iw)
        For Local y=0 To ih
        For Local x=wa To wb
            addmappixel(x,y,val)            
        Next
            wa+=s
            wb-=s    
        Next
    End Method


    Method addtriangledown()
        Local val:Int=Rnd(-120,120)
        If Rnd()<.5 Then val = Rnd(2,10)
        Local wa:Float=0
        Local wb:Float=iw 
        Local s:Float=Float(ih)/Float(iw)
        For Local y=ih To 0 Step -1
        For Local x=wa To wb
            addmappixel(x,y,val)            
        Next
            wa+=s
            wb-=s    
        Next
    End Method

    Method addtriangleleft()    
        Local val:Int=Rnd(-120,120)
        If Rnd()<.5 Then val = Rnd(2,10)
        Local ha:Float=0
        Local hb:Float=ih
        Local s:Float=((Float(iw)/Float(ih))/3.5)
        For Local x=iw To 0 Step -1
        For Local y=ha To hb
            addmappixel(x,y,val)            
        Next
            ha+=s
            hb-=s    
        Next
    End Method

    Method addoval()
        'oval
        Local val:Int=Rnd(-100,100)
        If Rnd()<.5 Then val=Rnd(-15,15)
        addo(iw/2,ih/2,ih/2,val)
    End Method

    Method addtriangleright()
        Local val:Int=Rnd(-120,120)
        If Rnd()<.5 Then val = Rnd(2,10)
        Local ha:Float=0
        Local hb:Float=ih
        Local s:Float=((Float(iw)/Float(ih))/3.5)
        For Local x=0 To iw
        For Local y=ha To hb
            addmappixel(x,y,val)            
        Next
            ha+=s
            hb-=s    
        Next
    End Method


    Method addheightmap()
        'heightmap
        Local mw:Int=Rnd(5,iw/10)
        Local mh:Int=Rnd(5,ih/10)
        Local cnt:Float=Rnd(1,4)
        For Local i:Int=0 To iw*ih*cnt
            Local x:Int=Rnd(-10,iw)
            Local y:Int=Rnd(-10,ih)
            Local w:Int=Rnd(3,mw)
            Local h:Int=Rnd(3,mh)
            Local val:Int
            If Rnd()<.5 Then val=-1 Else val=1
            addr(x,y,w,h,val)
        Next        
    End Method

    Method tintmap()
        'tint random
        Local r1:Int=Rnd(0,125)
        Local g1:Int=Rnd(0,125)
        Local b1:Int=Rnd(0,125)
        For Local y=0 Until ih
        For Local x=0 Until iw    
            Local r2:Int=getred(getmappixel(x,y))
            Local g2:Int=r2
            Local b2:Int=r2
            setmappixel(x,y,argb(r1+r2/2,g1+g2/2,b1+b2/2))
        Next
        Next
    End Method

    Method decmappixel(x:Int,y:Int,val:Int=10)
        Local pos:Int=(y*iw)+x
        If pos<0 Or pos>=iw*ih Then Return
        Local r:Int=getred(mappixels[pos])-val
        Local g:Int=getgreen(mappixels[pos])-val
        Local b:Int=getblue(mappixels[pos])-val        
        Local nr:Int=Clamp(r,0,255)
        Local ng:Int=Clamp(g,0,255)
        Local nb:Int=Clamp(b,0,255)         
        mappixels[pos] = argb(nr,ng,nb)
    End Method
    Method addmappixel(x:Int,y:Int,val:Int=10)
        Local pos:Int=(y*iw)+x
        If pos<0 Or pos >=iw*ih Then Return
        Local r:Int=getred(mappixels[pos])+val
        Local g:Int=getgreen(mappixels[pos])+val
        Local b:Int=getblue(mappixels[pos])+val        
        Local nr:Int=Clamp(r,0,255)
        Local ng:Int=Clamp(g,0,255)
        Local nb:Int=Clamp(b,0,255)                
        mappixels[pos] = argb(nr,ng,nb)
    End Method


    Method setmappixel:Int(x:Int,y:Int,col)
        Local pos:Int=(y*iw)+x
        If pos<0 Or pos>=iw*ih Then Return 0
        mappixels[pos] = col
    End Method

    Method getmappixel:Int(x:Int,y:Int)
        Local pos:Int=(y*iw)+x
        If pos<0 Or pos>=iw*ih Then Return 0
        Return mappixels[pos]
    End Method

    Method getpixel2:Int(x:Int,y:Int)
        Local pos:Int=(y*iw)+x
        If pos<0 Or pos>=iw*ih Then Return 0        
        Return mappixels[pos]
    End Method


    Method draw()
        DrawImage mapimage,0,0,0,sc,sc
        SetColor 0,0,0
        DrawRect iw-200,ih-200,200,200
        SetColor 255,255,255
        DrawImage mapimage,iw-200+1,ih-200+1,0,198.0/Float(iw),198.0/Float(ih)
        SetColor 0,0,0
        DrawRect iw-64,ih-64,64,64
        SetColor 255,255,255
        DrawImage mapimage,iw-64+1,ih-64+1,0,62.0/Float(iw),62.0/Float(ih)

    End Method
    Method addr2(x1,y1,w1,h1,val:Int)
        For Local y2=y1 Until y1+h1
        For Local x2=x1 Until x1+w1
            Local pc = y2*iw+x2
            If pc >= 0 And pc < iw*ih
                Local r1:Int=getred(mappixels[pc])+val
                Local g1:Int=getgreen(mappixels[pc])+val
                Local b1:Int=getblue(mappixels[pc])+val
                r1 = Clamp(r1,0,255)                                
                g1 = Clamp(g1,0,255)
                b1 = Clamp(b1,0,255)
                mappixels[pc] = argb(r1,g1,b1)
            End If
        Next
        Next    
       End Method

    Method addr(x1,y1,w1,h1,val:Int)
        For Local y2=y1 Until y1+h1
        For Local x2=x1 Until x1+w1
            Local pc = y2*iw+x2
            If pc >= 0 And pc < iw*ih
                Local r1:Int=getred(mappixels[pc])+val
                Local g1:Int=getgreen(mappixels[pc])+val
                Local b1:Int=getblue(mappixels[pc])+val
                r1 = Clamp(r1,0,255)                                
                g1 = Clamp(g1,0,255)
                b1 = Clamp(b1,0,255)
                If r1>20 Then mappixels[pc] = argb(r1,g1,b1)
            End If
        Next
        Next    
       End Method
    Method drawr(x1,y1,w1,h1,col)
        For Local y2=y1 Until y1+h1
        For Local x2=x1 Until x1+w1
            Local pc = y2*iw+x2
            If pc >= 0 And pc < iw*ih
                mappixels[pc] = col
            End If
        Next
        Next    
       End Method
    Method addo(x1,y1,radius:Float,val:Int=10)
        For Local y2=-radius To radius
        For Local x2=-radius To radius
            If (y2*y2+x2*x2) <= radius*radius+radius*0.8
                Local x3 = x2+x1
                Local y3 = y2+y1
                Local pc = y3*iw+x3
                If pc>=0 And pc < iw*ih
                    Local r1:Int=getred(mappixels[pc])
                    Local g1:Int=getgreen(mappixels[pc])
                    Local b1:Int=getblue(mappixels[pc])                                        
                    Local r2:Int=r1+val
                    Local g2:Int=g1+val
                    Local b2:Int=b1+val
                    r2 = Clamp(r2,0,255)
                    g2 = Clamp(g2,0,255)
                    b2 = Clamp(b2,0,255)                                        
                    mappixels[pc] = argb(r2,g2,b2)
                End If
            End If
        Next
        Next    
    End Method 
    Method drawo(x1,y1,radius:Float,col:Int)
        For Local y2=-radius To radius
        For Local x2=-radius To radius
            If (y2*y2+x2*x2) <= radius*radius+radius*0.8
                Local x3 = x2+x1
                Local y3 = y2+y1
                Local pc = y3*iw+x3
                If pc>=0 And pc < iw*ih
                    mappixels[pc] = col
                End If
            End If
        Next
        Next    
    End Method    
    Function argb:Int(r:Int, g:Int, b:Int ,alpha:Int=255)
       Return (alpha Shl 24) | (r Shl 16) | (g Shl 8) | b          
    End Function
    Function getred:Int(rgba:Int)    
        Return((rgba Shr 16) & $FF)    
    End Function              
    Function getgreen:Int(rgba:Int)    
        Return((rgba Shr 8) & $FF)    
    End Function    
    Function getblue:Int(rgba:Int)    
        Return(rgba & $FF)    
    End Function    
    Function getalpha:Int(rgba:Int)    
        Return ((rgba Shr 24) & $FF)    
    End Function    
End Class

Global mytexture:texture

Class MyGame Extends App
    Field cnt:Int=0
    Method OnCreate()
        SetUpdateRate(1)
           Seed = GetDate[5]
        mytexture = New texture()
    End Method
    Method OnUpdate()
        cnt+=1
        If cnt>6 Then
            mytexture = New texture()
            cnt=0
        End If
    End Method
    Method OnRender()
        Cls 50,50,50
        mytexture.draw
        SetColor 255,255,255
     End Method
End Class


Function Main()
    New MyGame()
End Function