From 2afd44a7ba2c1d8b9c162ab9c6ccdfbd9f1310c0 Mon Sep 17 00:00:00 2001
From: Ian C <ianc@noddybox.co.uk>
Date: Wed, 24 Aug 2005 00:25:34 +0000
Subject: Changed typenames to Blitz standard naming.  Added unimplemented
 TVector.

---
 glflag.mod/glflag.bmx | 184 ++++++++++++++++++++++++--------------------------
 1 file changed, 88 insertions(+), 96 deletions(-)

(limited to 'glflag.mod/glflag.bmx')

diff --git a/glflag.mod/glflag.bmx b/glflag.mod/glflag.bmx
index 5b62530..e0993cf 100644
--- a/glflag.mod/glflag.bmx
+++ b/glflag.mod/glflag.bmx
@@ -12,16 +12,27 @@ Import pub.OpenGL
 
 Strict
 
-Type GLFlag
+Type TGLFlag
 
+	' These are public and can be used to modify the flag
+	'
+	Field xpos:Float
+	Field ypos:Float
+	Field zpos:Float
+	Field xrot:Float
+	Field yrot:Float
+	Field zrot:Float
+	
 	' These are considered private
 	'
-	Const THRESHOLD:Float=0.0001
-	Field v:GLFlagVertex[,]
+	Global static:Int=False
+	Global si:Float[]=Null
+	Field v:TGLFlagVertex[,]
+	Field cell:Int
+	Field move:Int
 	Field width:Int
 	Field height:Int
 	Field txt:Int
-	Field zpos:Float
 
 	' Creates a new flag
 	'	
@@ -34,20 +45,36 @@ Type GLFlag
 	'
 	' Returns null for invalid parameters.
 	'
-	Function Create:GLFlag(texture:Int, horiz:Int, vert:Int, size:Float, tile:Int, z:Float)
-		Local o:GLFlag
+	Function Create:TGLFlag(texture:Int, horiz:Int, vert:Int, size:Float, tile:Int, z:Float)
+		Local o:TGLFlag
 		
 		If (horiz<2 Or vert<2)
 			Return Null
 		EndIf
 		
-		o=New GLFlag
+		o=New TGLFlag
 		
-		o.txt=texture
+		If (Not o.static)
+			o.si=New Float[3600]
+			For Local a:Float=0 Until 3600
+				o.si[a]=Sin(a/10)
+			Next
+			o.static=True
+		EndIf
+		
+		o.xpos=0
+		o.ypos=0
 		o.zpos=z
+		o.xrot=0
+		o.yrot=0
+		o.zrot=0
+		
+		o.txt=texture
 		o.width=horiz
 		o.height=vert
-		o.v=New GLFlagVertex[horiz,vert]
+		o.cell=size
+		o.move=size/2
+		o.v=New TGLFlagVertex[horiz,vert]
 		
 		Local ox:Float
 		Local oy:Float
@@ -57,8 +84,10 @@ Type GLFlag
 		
 		For Local x=0 Until horiz
 			For Local y=0 Until vert
-				Local v:GLFlagVertex=New GLFlagVertex
-				v.Set(ox+x*size,oy+y*size,0)
+				Local v:TGLFlagVertex=New TGLFlagVertex
+				v.x=ox+x*size
+				v.y=oy+y*size
+				v.z=0
 				
 				If (tile)
 					v.u=(x&1)
@@ -77,122 +106,85 @@ Type GLFlag
 
 	' Call to render the flag
 	'	
-	' dampen		- Scale to dampen movements by when bouncing movement
-	' friction	- Scale to slow down movements
-	'	
-	Method Render(dampen:Float=1.0, friction:Float=0.95)
+	Method Render()
 		glPushMatrix()
-		glTranslatef(0,0,zpos)
+		glTranslatef(xpos,ypos,zpos)
+		glRotatef(xrot,1,0,0)
+		glRotatef(yrot,0,1,0)
+		glRotatef(zrot,0,0,1)
 		glBindTexture(GL_TEXTURE_2D,txt)
 		
-		For Local vert:GLFlagVertex=EachIn v
-			If (vert.xi<>0 Or vert.yi<>0 Or vert.zi<>0)
-				Local s:Float
-				
-				s=Sgn(vert.xi)
-				vert.xi:*friction
-				If (Abs(vert.xi)<THRESHOLD)
-					vert.initxi=vert.initxi*dampen
-					If (vert.initxi<THRESHOLD)
-						vert.xi=0
-						vert.x=vert.initx
-					Else
-						vert.xi=-s*vert.initxi*2
-					EndIf
-				Else
-					vert.x:+vert.xi
-				EndIf
-
-				s=Sgn(vert.yi)
-				vert.yi:*friction
-				If (Abs(vert.yi)<THRESHOLD)
-					vert.inityi=vert.inityi*dampen
-					If (vert.inityi<THRESHOLD)
-						vert.yi=0
-						vert.y=vert.inity
-					Else
-						vert.yi=-s*vert.inityi*2
-					EndIf
-				Else
-					vert.y:+vert.yi
-				EndIf
-
-				s=Sgn(vert.zi)
-				vert.zi:*friction
-				If (Abs(vert.zi)<THRESHOLD)
-					vert.initzi=vert.initzi*dampen
-					If (vert.initzi<THRESHOLD)
-						vert.zi=0
-						vert.z=vert.initx
-					Else
-						vert.zi=-s*vert.initzi*2
-					EndIf
-				Else
-					vert.z:+vert.zi
-				EndIf
-			EndIf
+		For Local vert:TGLFlagVertex=EachIn v
+			vert.ax=(vert.ax+vert.aix) Mod 3600
+			vert.ay=(vert.ay+vert.aiy) Mod 3600
+			vert.az=(vert.az+vert.aiz) Mod 3600
+			vert.cx=vert.x+si[vert.ax]*move
+			vert.cy=vert.y+si[vert.ay]*move
+			vert.cz=vert.z+si[vert.az]*move
 		Next
 
 		For Local x:Int=0 Until width-1
 			glBegin(GL_TRIANGLE_STRIP)
 			For Local y:Int=0 Until height
 				glTexCoord2f(v[x,y].u,v[x,y].v)
-				glVertex3f(v[x,y].x,v[x,y].y,v[x,y].z)
+				glVertex3f(v[x,y].cx,v[x,y].cy,v[x,y].cz)
 				glTexCoord2f(v[x+1,y].u,v[x+1,y].v)
-				glVertex3f(v[x+1,y].x,v[x+1,y].y,v[x+1,y].z)
+				glVertex3f(v[x+1,y].cx,v[x+1,y].cy,v[x+1,y].cz)
 			Next
 			glEnd()
 		Next
 		glPopMatrix()
 	End Method
 	
+	' Sets the amount of movement for vertex movement (defaults to half the cell size)
+	'
+	Method SetMove(m:Int)
+		move=m
+	End Method
+	
 	' Sets the movements for a vertex
 	'
 	' x			- The X co-ord of the vertex
 	' y			- The Y co-ord of the vertex
-	' xi			- The X movement
-	' yi			- The Y movement
-	' zi			- The Z movement
+	' angz		- The initial angle (movement is done on a sine wave with 3600 positions) for the Z co-ord
+	' angiz		- The angle increment for the Z co-ord
+	' angx		- Ditto for X
+	' angix		- Ditto for X
+	' angy		- And Y
+	' angiy		- And Y
 	'
-	Method Nudge(x:Int, y:Int, xi:Float, yi:Float, zi:Float)
-		v[x,y].initxi=Abs(xi)
-		v[x,y].inityi=Abs(yi)
-		v[x,y].initzi=Abs(zi)
-		v[x,y].xi=xi
-		v[x,y].yi=yi
-		v[x,y].zi=zi
+	' Note increments must be positive - to simulate negative ones pass a large increment (eg. 3599 for -1)
+	'
+	Method Nudge(x:Int, y:Int, angz:Float, angiz:Float=10, angx:Float=0, angix:Float=0, angy:Float=0, angiy:Float=0)
+		v[x,y].ax=angx
+		v[x,y].ay=angy
+		v[x,y].az=angz
+		v[x,y].aix=angix
+		v[x,y].aiy=angiy
+		v[x,y].aiz=angiz
 	End Method
 	
 End Type
 
-Type GLFlagVertex
+Type TGLFlagVertex
 	Field x#,y#,z#
+	Field cx#,cy#,cz#
 	Field u#,v#
-	Field initx#,inity#,initz#
-	Field initxi#,inityi#,initzi#
-	Field xi#,yi#,zi#
+	Field ax#,ay#,az#
+	Field aix#,aiy#,aiz#
 	
 	Method New()
 		x=0
 		y=0
 		z=0
-		initx=0
-		inity=0
-		initz=0
-		initxi=0
-		inityi=0
-		initzi=0
-		xi=0
-		yi=0
-		zi=0
-	End Method
-	
-	Method Set(xc:Float, yc:Float, zc:Float)
-		x=xc
-		initx=xc
-		y=yc
-		inity=yc
-		z=zc
-		initz=zc
+		cx=0
+		cy=0
+		cz=0
+		ax=0
+		ay=0
+		az=0
+		aix=0
+		aiy=0
+		aiz=0
 	End Method
 End Type
\ No newline at end of file
-- 
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