# HG changeset patch
# User smaxx
# Date 1282662224 -7200
# Node ID eb91c02f2d84ab69f229225a647d89c687fdc22a
# Parent  2396a27310540c590b45a4014ca035514aa39362
Engine:
* Updated clouds and flakes to fill the whole visible map (and borders)
* Added simple clipping to most drawing functions (might need some testing) which should improve performance on low end graphic cards

diff -r 2396a2731054 -r eb91c02f2d84 hedgewars/VGSHandlers.inc
--- a/hedgewars/VGSHandlers.inc	Tue Aug 24 13:24:37 2010 +0200
+++ b/hedgewars/VGSHandlers.inc	Tue Aug 24 17:03:44 2010 +0200
@@ -34,8 +34,8 @@
     Y:= Y + (dY + tdY + cGravityf * vobFallSpeed) * Steps;
     Angle:= Angle + dAngle * Steps;
   
-    if (round(X) >= -cScreenWidth - 64) and
-       (round(X) <= cScreenWidth + LAND_WIDTH) and
+    if (round(X) >= cLeftScreenBorder) and
+       (round(X) <= cRightScreenBorder) and
        (round(Y) <= (LAND_HEIGHT + 75)) and 
        (Timer > 0) and (Timer-Steps > 0) then
         begin
@@ -51,8 +51,8 @@
         end
     else
         begin
-        if round(X) < -cScreenWidth - 64 then X:= float(cScreenWidth + LAND_WIDTH) else
-        if round(X) > cScreenWidth + LAND_WIDTH then X:= float(-cScreenWidth - 64);
+        if round(X) < cLeftScreenBorder then X:= X + cScreenSpace else
+        if round(X) > cRightScreenBorder then X:= X - cScreenSpace;
         // if round(Y) < (LAND_HEIGHT - 1024 - 75) then Y:= Y + float(25); // For if flag is set for flakes rising upwards?
         if round(Y) > (LAND_HEIGHT + 75) then Y:= Y - float(1024 + 150); // TODO - configure in theme (jellies for example could use limited range)
         Timer:= 0;
@@ -86,8 +86,8 @@
 
 Gear^.Y := LAND_HEIGHT-1184 + Gear^.Timer mod 8 + t;
 
-if round(Gear^.X) < -cScreenWidth - 256 then Gear^.X:= float(cScreenWidth + LAND_WIDTH) else
-if round(Gear^.X) > cScreenWidth + LAND_WIDTH then Gear^.X:= float(-cScreenWidth - 256)
+if round(Gear^.X) < cLeftScreenBorder then Gear^.X:= Gear^.X + cScreenSpace else
+if round(Gear^.X) > cRightScreenBorder then Gear^.X:= Gear^.X - cScreenSpace
 end;
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -152,7 +152,7 @@
 if (Gear^.State and gstTmpFlag) = 0 then
     begin
     Gear^.dY:= Gear^.dY + cGravityf * Steps;
-    if ((GameTicks mod 100) < Steps + 1) then
+    if ((GameTicks mod 200) < Steps + 1) then
         begin
         vgt:= AddVisualGear(round(Gear^.X), round(Gear^.Y), vgtFire);
         if vgt <> nil then
diff -r 2396a2731054 -r eb91c02f2d84 hedgewars/hwengine.pas
--- a/hedgewars/hwengine.pas	Tue Aug 24 13:24:37 2010 +0200
+++ b/hedgewars/hwengine.pas	Tue Aug 24 17:03:44 2010 +0200
@@ -263,6 +263,11 @@
     ShowMainWindow();
 {$ENDIF}
 
+    // those values still aren't perfect
+    cLeftScreenBorder:= round(-cMinZoomLevel * cScreenWidth);
+    cRightScreenBorder:= round(cMinZoomLevel * cScreenWidth + LAND_WIDTH);
+    cScreenSpace:= cRightScreenBorder - cLeftScreenBorder;
+
     AddProgress();
 
     ControllerInit(); // has to happen before InitKbdKeyTable to map keys
diff -r 2396a2731054 -r eb91c02f2d84 hedgewars/uLandObjects.pas
--- a/hedgewars/uLandObjects.pas	Tue Aug 24 13:24:37 2010 +0200
+++ b/hedgewars/uLandObjects.pas	Tue Aug 24 17:03:44 2010 +0200
@@ -403,7 +403,10 @@
 ReadLn(f, cCloudsNumber);
 
 // TODO - adjust all the theme cloud numbers. This should not be a permanent fix
-cCloudsNumber:= cCloudsNumber * (LAND_WIDTH div 2048);
+//cCloudsNumber:= cCloudsNumber * (LAND_WIDTH div 2048);
+
+// scale number of clouds depending on screen space (two times land width)
+cCloudsNumber:= cCloudsNumber * cScreenSpace div LAND_WIDTH;
 
 Readln(f, ThemeObjects.Count);
 for i:= 0 to Pred(ThemeObjects.Count) do
@@ -450,12 +453,16 @@
 Readln(f, vobCount);
 if vobCount > 0 then
     Readln(f, vobFramesCount, vobFrameTicks, vobVelocity, vobFallSpeed);
+
+// adjust amount of flakes scaled by screen space
+vobCount:= vobCount * cScreenSpace div LAND_WIDTH;
+
 if (cReducedQuality and rqKillFlakes) <> 0 then
     vobCount:= 0;
 
 
 for i:= 0 to Pred(vobCount) do
-    AddVisualGear( -cScreenWidth + random(cScreenWidth * 2 + LAND_WIDTH), random(1024+200) - 100 + LAND_HEIGHT, vgtFlake);
+    AddVisualGear(cLeftScreenBorder + random(cScreenSpace), random(1024+200) - 100 + LAND_HEIGHT, vgtFlake);
 
 Close(f);
 {$I+}
diff -r 2396a2731054 -r eb91c02f2d84 hedgewars/uMisc.pas
--- a/hedgewars/uMisc.pas	Tue Aug 24 13:24:37 2010 +0200
+++ b/hedgewars/uMisc.pas	Tue Aug 24 17:03:44 2010 +0200
@@ -98,6 +98,10 @@
     //userNick is in uChat
     recordFileName  : shortstring = '';
 
+    cLeftScreenBorder     : LongInt = 0;
+    cRightScreenBorder    : LongInt = 0;
+    cScreenSpace          : LongInt = 0;
+
     cCaseFactor     : Longword;
     cLandAdditions  : Longword;
     cExplosives     : Longword;
diff -r 2396a2731054 -r eb91c02f2d84 hedgewars/uStore.pas
--- a/hedgewars/uStore.pas	Tue Aug 24 13:24:37 2010 +0200
+++ b/hedgewars/uStore.pas	Tue Aug 24 17:03:44 2010 +0200
@@ -493,6 +493,13 @@
     VertexBuffer, TextureBuffer: array [0..3] of TVertex2f;
 begin
 if (SourceTexture^.h = 0) or (SourceTexture^.w = 0) then exit;
+
+// don't draw anything outside the visible screen space (first check fixes some sprite drawing, e.g. hedgehogs)
+if (abs(X) > W) and ((abs(X + W / 2) - W / 2) > cScreenWidth / cScaleFactor) then
+    exit;
+if (abs(Y) > H) and ((abs(Y + H / 2 - (0.5 * cScreenHeight)) - H / 2) > cScreenHeight / cScaleFactor) then
+    exit;
+
 rr.x:= X;
 rr.y:= Y;
 rr.w:= W;
@@ -531,6 +538,7 @@
 
 procedure DrawTexture(X, Y: LongInt; Texture: PTexture; Scale: GLfloat);
 begin
+
 glPushMatrix;
 glTranslatef(X, Y, 0);
 glScalef(Scale, Scale, 1);
@@ -554,6 +562,12 @@
     hw, nx, ny: LongInt;
     VertexBuffer, TextureBuffer: array [0..3] of TVertex2f;
 begin
+// don't draw anything outside the visible screen space (first check fixes some sprite drawing, e.g. hedgehogs)
+if (abs(X) > W) and ((abs(X + dir * OffsetX) - W / 2) > cScreenWidth / cScaleFactor) then
+    exit;
+if (abs(Y) > H) and ((abs(Y + OffsetY - (0.5 * cScreenHeight)) - W / 2) > cScreenHeight / cScaleFactor) then
+    exit;
+
 glPushMatrix;
 glTranslatef(X, Y, 0);
 
@@ -635,6 +649,12 @@
 procedure DrawRotatedTex(Tex: PTexture; hw, hh, X, Y, Dir: LongInt; Angle: real);
 var VertexBuffer: array [0..3] of TVertex2f;
 begin
+// don't draw anything outside the visible screen space (first check fixes some sprite drawing, e.g. hedgehogs)
+if (abs(X) > 2 * hw) and ((abs(X) - hw) > cScreenWidth / cScaleFactor) then
+    exit;
+if (abs(Y) > 2 * hh) and ((abs(Y - 0.5 * cScreenHeight) - hh) > cScreenHeight / cScaleFactor) then
+    exit;
+
 glPushMatrix;
 glTranslatef(X, Y, 0);
 
@@ -728,6 +748,11 @@
 var l, r, t, b: real;
     TextureBuffer: array [0..3] of TVertex2f;
 begin
+// don't draw anything outside the visible screen space (first check fixes some sprite drawing, e.g. hedgehogs)
+if (abs(X) > 32) and ((abs(X) - 16)> cScreenWidth / cScaleFactor) then
+    exit;
+if (abs(Y) > 32) and ((abs(Y - 0.5 * cScreenHeight) - 16) > cScreenHeight / cScaleFactor) then
+    exit;
 
 t:= Pos * 32 / HHTexture^.h;
 b:= (Pos + 1) * 32 / HHTexture^.h;
@@ -768,6 +793,12 @@
 procedure DrawFillRect(r: TSDL_Rect);
 var VertexBuffer: array [0..3] of TVertex2f;
 begin
+// don't draw anything outside the visible screen space (first check fixes some sprite drawing, e.g. hedgehogs)
+if (abs(r.x) > r.w) and ((abs(r.x + r.w / 2) - r.w / 2) > cScreenWidth / cScaleFactor) then
+    exit;
+if (abs(r.y) > r.h) and ((abs(r.y + r.h / 2 - (0.5 * cScreenHeight)) - r.h / 2) > cScreenHeight / cScaleFactor) then
+    exit;
+
 glDisable(GL_TEXTURE_2D);
 
 Tint($00, $00, $00, $80);
diff -r 2396a2731054 -r eb91c02f2d84 hedgewars/uVisualGears.pas
--- a/hedgewars/uVisualGears.pas	Tue Aug 24 13:24:37 2010 +0200
+++ b/hedgewars/uVisualGears.pas	Tue Aug 24 17:03:44 2010 +0200
@@ -494,7 +494,7 @@
 var i: LongInt;
 begin
 for i:= 0 to cCloudsNumber - 1 do
-    AddVisualGear( - cScreenWidth + i * ((cScreenWidth * 2 + (LAND_WIDTH+256)) div (cCloudsNumber + 1)), LAND_HEIGHT-1184, vgtCloud)
+    AddVisualGear(cLeftScreenBorder + i * cScreenSpace div (cCloudsNumber + 1), LAND_HEIGHT-1184, vgtCloud)
 end;
 
 procedure initModule;
diff -r 2396a2731054 -r eb91c02f2d84 hedgewars/uWorld.pas
--- a/hedgewars/uWorld.pas	Tue Aug 24 13:24:37 2010 +0200
+++ b/hedgewars/uWorld.pas	Tue Aug 24 17:03:44 2010 +0200
@@ -96,7 +96,7 @@
         AddGoal:= s;
     end;
 begin
-    missionTimer:= 0;
+missionTimer:= 0;
 
 if (GameFlags and gfRandomOrder) <> 0 then  // shuffle them up a bit
    begin