# Copyright (C) 2007  Marcel Unbehaun <frostworks@gmx.de>
# Distributed under the same license as the game. See debian/copyright.

--- a/src/abagames/p47/Bonus.d
+++ b/src/abagames/p47/Bonus.d
@@ -63,7 +63,7 @@
   }
 
   public override void init(ActorInitializer ini) {
-    BonusInitializer bi = (BonusInitializer) ini;
+    BonusInitializer bi = cast(BonusInitializer) ini;
     field = bi.field;
     ship = bi.ship;
     manager = bi.manager;
@@ -132,7 +132,7 @@
     if (cnt < RETRO_CNT)
       return;
     float d = pos.dist(ship.pos);
-    if (d < ACQUIRE_WIDTH * (1 + (float) inhaleCnt * 0.2) && ship.cnt >= -Ship.INVINCIBLE_CNT) {
+    if (d < ACQUIRE_WIDTH * (1 + cast(float) inhaleCnt * 0.2) && ship.cnt >= -Ship.INVINCIBLE_CNT) {
       getBonus();
       isExist = false;
       return;
@@ -157,8 +157,8 @@
   public override void draw() {
     float retro;
     if (cnt < RETRO_CNT)
-      retro = 1 - (float) cnt / RETRO_CNT;
-    else 
+      retro = 1 - cast(float) cnt / RETRO_CNT;
+    else
       retro = 0;
     float d = cnt * 0.1;
     float ox = sin(d) * 0.3;
--- a/src/abagames/p47/BulletActor.d
+++ b/src/abagames/p47/BulletActor.d
@@ -59,7 +59,7 @@
   }
 
   public override void init(ActorInitializer ini) {
-    BulletActorInitializer bi = (BulletActorInitializer) ini;
+    BulletActorInitializer bi = cast(BulletActorInitializer) ini;
     field = bi.field;
     ship = bi.ship;
     bullet = new P47Bullet(nextId);
--- a/src/abagames/p47/BulletActorPool.d
+++ b/src/abagames/p47/BulletActorPool.d
@@ -32,10 +32,10 @@
   }
 
   public void addBullet(float deg, float speed) {
-    BulletActor ba = (BulletActor) getInstance();
+    BulletActor ba = cast(BulletActor) getInstance();
     if (!ba)
       return;
-    P47Bullet rb = (P47Bullet) Bullet.now;
+    P47Bullet rb = cast(P47Bullet) Bullet.now;
     if (rb.isMorph) {
       BulletMLRunner *runner = BulletMLRunner_new_parser(rb.morphParser[rb.morphIdx]);
       BulletActorPool.registFunctions(runner);
@@ -51,12 +51,12 @@
   }
 
   public void addBullet(BulletMLState *state, float deg, float speed) {
-    BulletActor ba = (BulletActor) getInstance();
+    BulletActor ba = cast(BulletActor) getInstance();
     if (!ba)
       return;
     BulletMLRunner* runner = BulletMLRunner_new_state(state);
     registFunctions(runner);
-    P47Bullet rb = (P47Bullet) Bullet.now;
+    P47Bullet rb = cast(P47Bullet) Bullet.now;
     if (rb.isMorph)
       ba.set(runner, Bullet.now.pos.x, Bullet.now.pos.y, deg, speed, 
 	     Bullet.now.rank, 
@@ -72,7 +72,7 @@
 			       float x, float y, float deg, float speed,
 			       float rank, 
 			       float speedRank, int shape, int color, float size, float xReverse) {
-    BulletActor ba = (BulletActor) getInstance();
+    BulletActor ba = cast(BulletActor) getInstance();
     if (!ba)
       return null;
     ba.set(runner, x, y, deg, speed, rank, speedRank, shape, color, size, xReverse);
@@ -99,7 +99,7 @@
 			       float rank,
 			       float speedRank, int shape, int color, float size, float xReverse,
 			       BulletMLParser *morph[], int morphNum, int morphCnt) {
-    BulletActor ba = (BulletActor) getInstance();
+    BulletActor ba = cast(BulletActor) getInstance();
     if (!ba)
       return null;
     ba.set(runner, x, y, deg, speed, rank, 
@@ -119,14 +119,14 @@
   }
   
   public void killMe(Bullet bullet) {
-    assert(((BulletActor) actor[bullet.id]).bullet.id == bullet.id);
-    ((BulletActor) actor[bullet.id]).remove();
+    assert((cast(BulletActor) actor[bullet.id]).bullet.id == bullet.id);
+    (cast(BulletActor) actor[bullet.id]).remove();
   }
 
   public override void clear() {
     for (int i = 0; i < actor.length; i++) {
       if (actor[i].isExist)
-	((BulletActor) actor[i]).remove();
+	(cast(BulletActor) actor[i]).remove();
     }
   }
 
@@ -155,7 +155,7 @@
   double getAimDirectionWithXRev_(BulletMLRunner* r) {
     Vector b = Bullet.now.pos;
     Vector t = Bullet.target;
-    float xrev = ((P47Bullet) Bullet.now).xReverse;
+    float xrev = (cast(P47Bullet) Bullet.now).xReverse;
     return rtod(std.math.atan2(t.x - b.x, t.y - b.y) * xrev);
   }
 }
--- a/src/abagames/p47/Enemy.d
+++ b/src/abagames/p47/Enemy.d
@@ -88,7 +88,7 @@
   }
 
   public override void init(ActorInitializer ini) {
-    EnemyInitializer ei = (EnemyInitializer) ini;
+    EnemyInitializer ei = cast(EnemyInitializer) ini;
     field = ei.field;
     bullets = ei.bullets;
     shots = ei.shots;
@@ -234,7 +234,7 @@
   }
 
   private void addBonuses(Vector p, int sl) {
-    int bn = (float) sl * 3 / (((float) cnt / 30) + 1) * Bonus.rate + 0.9;
+    int bn = cast(int)(cast(float) sl * 3 / ((cast(float) cnt / 30) + 1) * Bonus.rate + 0.9);
     manager.addBonus(pos, p, bn);
   }
 
@@ -389,7 +389,7 @@
     for (int i = 0; i < shots.actor.length; i++) {
       if (!shots.actor[i].isExist)
 	continue;
-      Vector sp = ((Shot) shots.actor[i]).pos;
+      Vector sp = (cast(Shot) shots.actor[i]).pos;
       ch = checkHit(sp, 0.7, 0);
       if (ch >= HIT) {
 	manager.addParticle(sp, rand.nextSignedFloat(0.3), 0, Shot.SPEED / 4);
@@ -407,7 +407,7 @@
       for (int i = 0; i < rolls.actor.length; i++) {
 	if (!rolls.actor[i].isExist)
 	  continue;
-	Roll rl = (Roll) rolls.actor[i];
+	Roll rl = cast(Roll) rolls.actor[i];
 	ch = checkHit(rl.pos[0], 1.0, 1.0);
 	if (ch >= HIT) {
 	  for (int i = 0; i < 4; i++)
@@ -420,9 +420,9 @@
 	      continue;
 	  }
 	  if (ch == HIT)
-	    addDamage(rd);
+	    addDamage(cast(int)rd);
 	  else
-	    addDamageBattery(ch, rd);
+	    addDamageBattery(ch, cast(int)rd);
 	}
       }
     } else if (type.type != EnemyType.SMALL) {
@@ -430,7 +430,7 @@
       for (int i = 0; i < locks.actor.length; i++) {
 	if (!locks.actor[i].isExist)
 	  continue;
-	Lock lk = (Lock) locks.actor[i];
+	Lock lk = cast(Lock) locks.actor[i];
 	if (lk.state == Lock.SEARCH || lk.state == Lock.SEARCHED) {
 	  ch = checkLocked(lk.pos[0], 2.5, lk);
 	  if (ch >= HIT) {
@@ -595,7 +595,7 @@
 	if (z < 0)
 	  z -= APPEARANCE_Z / 60;
 	appCnt--;
-	mtr = 1.0 - (float)appCnt / APPEARANCE_CNT;
+	mtr = 1.0 - cast(float)appCnt / APPEARANCE_CNT;
       } else if (dstCnt > 0) {
 	addFragments(1, z, 0.05, rand.nextSignedFloat(std.math.PI));
 	manager.clearBullets();
@@ -609,7 +609,7 @@
 	  manager.setBossShieldMeter(0, 0, 0, 0, 0, 0);
 	  return;
 	}
-	mtr = (float)dstCnt / DESTROYED_CNT;
+	mtr = cast(float)dstCnt / DESTROYED_CNT;
       } else if (timeoutCnt > 0) {
 	z += DESTROYED_Z / 60;
 	timeoutCnt--;
@@ -641,16 +641,16 @@
     if (appCnt > 0) {
       // Appearance effect of the boss.
       P47Screen.setRetroZ(z);
-      ap = (float) appCnt / APPEARANCE_CNT;
+      ap = cast(float) appCnt / APPEARANCE_CNT;
       P47Screen.setRetroParam(1, type.retroSize * (1 + ap * 10));
       P47Screen.setRetroColor(type.r, type.g, type.b, (1 - ap));
     } else if (dstCnt > 0) {
       P47Screen.setRetroZ(z);
-      ap = (float) dstCnt / DESTROYED_CNT / 2 + 0.5;
+      ap = cast(float) dstCnt / DESTROYED_CNT / 2 + 0.5;
       P47Screen.setRetroColor(type.r, type.g, type.b, ap);
     } else if (timeoutCnt > 0) {
       P47Screen.setRetroZ(z);
-      ap = (float) timeoutCnt / TIMEOUT_CNT;
+      ap = cast(float) timeoutCnt / TIMEOUT_CNT;
       P47Screen.setRetroColor(type.r, type.g, type.b, ap);
     } else {
       P47Screen.setRetroParam(1, type.retroSize);
--- a/src/abagames/p47/EnemyType.d
+++ b/src/abagames/p47/EnemyType.d
@@ -244,9 +244,9 @@
      [0.9, 0.3, 0.7, 0.2,  0.25,  5.0, 0.6, 3.0, 1.5],
      [1.2, 0.2, 0.9, 0.1,  0.3,  7.0, 0.8, 4.5, 1.5],
      ];
-  private enum {
-    SMALL, MIDDLE, LARGE, MIDDLEBOSS, LARGEBOSS,
-  }
+//  private enum {
+//    SMALL, MIDDLE, LARGE, MIDDLEBOSS, LARGEBOSS,
+//  }
 
   // Set the shepe of the BatteryType.
   private void setEnemyShapeAndWings(int size) {
@@ -482,12 +482,12 @@
       shield = 40 + rand.nextInt(10);
       setBattery(sr, 1, BarrageManager.MIDDLESUB, NORMAL, 0, 0, 1, mode);
       fireInterval = 100 + rand.nextInt(60);
-      firePeriod = fireInterval / (1.8 + rand.nextFloat(0.7));
+      firePeriod = cast(int)(fireInterval / (1.8 + rand.nextFloat(0.7)));
     } else {
       shield = 30 + rand.nextInt(8);
       setBattery(sr, 1, BarrageManager.MIDDLESUB_LOCK, NORMAL, 0, 0, 1, mode);
       fireInterval = 72 + rand.nextInt(30);
-      firePeriod = fireInterval / (1.2 + rand.nextFloat(0.2));
+      firePeriod = cast(int)(fireInterval / (1.2 + rand.nextFloat(0.2)));
     }
     if (rank < 10)
       firePeriod /= (2 - rank * 0.1);
@@ -565,13 +565,13 @@
       setBattery(sr1, 1, BarrageManager.MIDDLESUB, NORMAL, 0, 0, 1, mode);
       setBattery(sr2, 1, BarrageManager.MIDDLESUB, NORMAL, 2, 0, 1, mode);
       fireInterval = 150 + rand.nextInt(60);
-      firePeriod = fireInterval / (1.3 + rand.nextFloat(0.8));
+      firePeriod = cast(int)(fireInterval / (1.3 + rand.nextFloat(0.8)));
     } else {
       shield = 45 + rand.nextInt(8);
       setBattery(sr1, 1, BarrageManager.MIDDLESUB_LOCK, NORMAL, 0, 0, 1, mode);
       setBattery(sr2, 1, BarrageManager.MIDDLESUB_LOCK, NORMAL, 2, 0, 1, mode);
       fireInterval = 100 + rand.nextInt(50);
-      firePeriod = fireInterval / (1.2 + rand.nextFloat(0.2));
+      firePeriod = cast(int)(fireInterval / (1.2 + rand.nextFloat(0.2)));
     }
     if (rank < 10)
       firePeriod /= (2 - rank * 0.1);
@@ -609,7 +609,7 @@
     }
     shield = 300 + rand.nextInt(50);
     fireInterval = 200 + rand.nextInt(40);
-    firePeriod = fireInterval / (1.2 + rand.nextFloat(0.4));
+    firePeriod = cast(int)(fireInterval / (1.2 + rand.nextFloat(0.4)));
     if (rank < 10)
       firePeriod /= (2 - rank * 0.1);
   }
@@ -650,7 +650,7 @@
     }
     shield = 400 + rand.nextInt(50);
     fireInterval = 220 + rand.nextInt(60);
-    firePeriod = fireInterval / (1.2 + rand.nextFloat(0.3));
+    firePeriod = cast(int)(fireInterval / (1.2 + rand.nextFloat(0.3)));
     if (rank < 10)
       firePeriod /= (2 - rank * 0.1);
   }
--- a/src/abagames/p47/Field.d
+++ b/src/abagames/p47/Field.d
@@ -97,7 +97,7 @@
     float d = -RING_NUM * RING_ANGLE_INT / 2 + roll;
     for (int i = 0; i < RING_NUM; i++) {
       for (int j = 1; j < 8; j++) {
-	float sc = (float) j / 16 + 0.5;
+	float sc = cast(float) j / 16 + 0.5;
 	glPushMatrix();
 	glTranslatef(0, 0, z);
 	glRotatef(d, 1, 0, 0);
@@ -126,7 +126,7 @@
 
   private static const int RING_POS_NUM = 16;
   private static Vector ringPos[RING_POS_NUM];
-  private static const float RING_DEG = std.math.PI / 3 / ((float) (RING_POS_NUM / 2) + 0.5);
+  private static const float RING_DEG = std.math.PI / 3 / (cast(float) (RING_POS_NUM / 2) + 0.5);
   private static const float RING_RADIUS = 10;
   private static const float RING_SIZE = 0.5;
 
@@ -159,7 +159,7 @@
   }
 
   public static void createDisplayLists() {
-    float d = -RING_DEG * ((float) (RING_POS_NUM / 2) - 0.5);
+    float d = -RING_DEG * (cast(float) (RING_POS_NUM / 2) - 0.5);
     for (int i = 0; i < RING_POS_NUM; i++, d += RING_DEG) {
       ringPos[i] = new Vector;
       ringPos[i].x = sin(d) * RING_RADIUS;
--- a/src/abagames/p47/Fragment.d
+++ b/src/abagames/p47/Fragment.d
@@ -43,7 +43,7 @@
   }
 
   public override void init(ActorInitializer ini) {
-    FragmentInitializer fi = (FragmentInitializer) ini;
+    FragmentInitializer fi = cast(FragmentInitializer) ini;
     for (int i = 0; i < POINT_NUM; i++) {
       pos[i] = new Vector;
       vel[i] = new Vector;
--- a/src/abagames/p47/LetterRender.d
+++ b/src/abagames/p47/LetterRender.d
@@ -177,22 +177,22 @@
     float x, y, length, size, t;
     int deg;
     for (int i = 0;; i++) {
-      deg = (int) spData[idx][i][4];
+      deg = cast(int) spData[idx][i][4];
       if (deg > 99990) break;
-      x = -spData[idx][i][0]; 
+      x = -spData[idx][i][0];
       y = -spData[idx][i][1];
-      size = spData[idx][i][2]; 
+      size = spData[idx][i][2];
       length = spData[idx][i][3];
-      size *= 0.66f; 
+      size *= 0.66f;
       length *= 0.6f;
-      x = -x; 
+      x = -x;
       y = y;
       deg %= 180;
-      if (deg <= 45 || deg > 135) 
+      if (deg <= 45 || deg > 135)
 	drawBox(x, y, size, length, r, g, b);
-      else 
+      else
 	drawBox(x, y, length, size, r, g, b);
-    }    
+    }
   }
 
   private static const int LETTER_NUM = 42;
--- a/src/abagames/p47/Lock.d
+++ b/src/abagames/p47/Lock.d
@@ -52,7 +52,7 @@
   }
 
   public override void init(ActorInitializer ini) {
-    LockInitializer li = (LockInitializer) ini;
+    LockInitializer li = cast(LockInitializer) ini;
     ship = li.ship;
     field = li.field;
     manager = li.manager;
--- a/src/abagames/p47/LuminousActorPool.d
+++ b/src/abagames/p47/LuminousActorPool.d
@@ -22,7 +22,7 @@
   public void drawLuminous() {
     for (int i = 0; i < actor.length; i++) {
       if (actor[i].isExist)
-	((LuminousActor) actor[i]).drawLuminous();
+	(cast(LuminousActor) actor[i]).drawLuminous();
     }
   }
 }
--- a/src/abagames/p47/LuminousScreen.d
+++ b/src/abagames/p47/LuminousScreen.d
@@ -19,7 +19,7 @@
   GLuint luminousTexture;
   const int LUMINOUS_TEXTURE_WIDTH_MAX = 64;
   const int LUMINOUS_TEXTURE_HEIGHT_MAX = 64;
-  GLuint td[LUMINOUS_TEXTURE_WIDTH_MAX * LUMINOUS_TEXTURE_HEIGHT_MAX * 4 * uint.size];
+  GLuint td[LUMINOUS_TEXTURE_WIDTH_MAX * LUMINOUS_TEXTURE_HEIGHT_MAX * 4 * uint.sizeof];
   int luminousTextureWidth = 64, luminousTextureHeight = 64;
   int screenWidth, screenHeight;
   float luminous;
@@ -27,7 +27,7 @@
   private void makeLuminousTexture() {
     uint *data = td;
     int i;
-    memset(data, 0, luminousTextureWidth * luminousTextureHeight * 4 * uint.size);
+    memset(data, 0, luminousTextureWidth * luminousTextureHeight * 4 * uint.sizeof);
     glGenTextures(1, &luminousTexture);
     glBindTexture(GL_TEXTURE_2D, luminousTexture);
     glTexImage2D(GL_TEXTURE_2D, 0, 4, luminousTextureWidth, luminousTextureHeight, 0,
--- a/src/abagames/p47/P47Boot.d
+++ b/src/abagames/p47/P47Boot.d
@@ -42,7 +42,7 @@
 	throw new Exception("Invalid options");
       }
       i++;
-      float b = (float) atoi(args[i]) / 100;
+      float b = cast(float) atoi(args[i]) / 100;
       if (b < 0 || b > 1) {
 	usage(args[0]);
 	throw new Exception("Invalid options");
@@ -55,7 +55,7 @@
 	throw new Exception("Invalid options");
       }
       i++;
-      float l = (float) atoi(args[i]) / 100;
+      float l = cast(float) atoi(args[i]) / 100;
       if (l < 0 || l > 1) {
 	usage(args[0]);
 	throw new Exception("Invalid options");
--- a/src/abagames/p47/P47GameManager.d
+++ b/src/abagames/p47/P47GameManager.d
@@ -88,9 +88,9 @@
 
   // Initialize actor pools, load BGMs/SEs and textures.
   public override void init() {
-    pad = (Pad) input;
-    prefManager = (P47PrefManager) abstPrefManager;
-    screen = (P47Screen) abstScreen;
+    pad = cast(Pad) input;
+    prefManager = cast(P47PrefManager) abstPrefManager;
+    screen = cast(P47Screen) abstScreen;
     rand = new Rand;
     Field.createDisplayLists();
     field = new Field;
@@ -177,7 +177,7 @@
   }
 
   public void addParticle(Vector pos, float deg, float ofs, float speed) {
-    Particle pt = (Particle) particles.getInstanceForced();
+    Particle pt = cast(Particle) particles.getInstanceForced();
     assert(pt);
     pt.set(pos, deg, ofs, speed);
   }
@@ -185,14 +185,14 @@
   public void addFragments(int n, float x1, float y1, float x2, float y2, float z, 
 			   float speed, float deg) {
     for (int i = 0; i < n; i++) {
-      Fragment ft = (Fragment) fragments.getInstanceForced();
+      Fragment ft = cast(Fragment) fragments.getInstanceForced();
       assert(ft);
       ft.set(x1, y1, x2, y2, z, speed, deg);
     }
   }
 
   public void addEnemy(Vector pos, float d, EnemyType type, BulletMLParser *moveParser) {
-    Enemy en = (Enemy) enemies.getInstance();
+    Enemy en = cast(Enemy) enemies.getInstance();
     if (!en)
       return;
     en.set(pos, d, type, moveParser);
@@ -202,33 +202,33 @@
     for (int i = 0; i < bullets.actor.length; i++) {
       if (!bullets.actor[i].isExist)
 	continue;
-      ((BulletActor) bullets.actor[i]).toRetro();
+      (cast(BulletActor) bullets.actor[i]).toRetro();
     }
   }
 
   public void addBoss(Vector pos, float d, EnemyType type) {
-    Enemy en = (Enemy) enemies.getInstance();
+    Enemy en = cast(Enemy) enemies.getInstance();
     if (!en)
       return;
     en.setBoss(pos, d, type);
   }
 
   public void addShot(Vector pos, float deg) {
-    Shot shot = (Shot) shots.getInstance();
+    Shot shot = cast(Shot) shots.getInstance();
     if (!shot)
       return;
     shot.set(pos, deg);
   }
 
   public void addRoll() {
-    Roll roll = (Roll) rolls.getInstance();
+    Roll roll = cast(Roll) rolls.getInstance();
     if (!roll)
       return;
     roll.set();
   }
 
   public void addLock() {
-    Lock lock = (Lock) locks.getInstance();
+    Lock lock = cast(Lock) locks.getInstance();
     if (!lock)
       return;
     lock.set();
@@ -238,7 +238,7 @@
     for (int i = 0; i < rolls.actor.length; i++) {
       if (!rolls.actor[i].isExist)
 	continue;
-      ((Roll) rolls.actor[i]).released = true;
+      (cast(Roll) rolls.actor[i]).released = true;
     }
   }
 
@@ -246,14 +246,14 @@
     for (int i = 0; i < locks.actor.length; i++) {
       if (!locks.actor[i].isExist)
 	continue;
-      ((Lock) locks.actor[i]).released = true;
+      (cast(Lock) locks.actor[i]).released = true;
     }
   }
 
 
   public void addBonus(Vector pos, Vector ofs, int num) {
     for (int i = 0; i < num; i++) {
-      Bonus bonus = (Bonus) bonuses.getInstance();
+      Bonus bonus = cast(Bonus) bonuses.getInstance();
       if (!bonus)
 	return;
       bonus.set(pos, ofs);
@@ -262,11 +262,11 @@
 
   public void setBossShieldMeter(int bs, int s1, int s2, int s3, int s4, float r) {
     r *= 0.7;
-    bossShield = bs * r;
-    bossWingShield[0] = s1 * r ;
-    bossWingShield[1] = s2 * r;
-    bossWingShield[2] = s3 * r;
-    bossWingShield[3] = s4 * r;
+    bossShield = cast(int)(bs * r);
+    bossWingShield[0] = cast(int)(s1 * r);
+    bossWingShield[1] = cast(int)(s2 * r);
+    bossWingShield[2] = cast(int)(s3 * r);
+    bossWingShield[3] = cast(int)(s4 * r);
   }
 
   // Difficulty.
@@ -341,7 +341,7 @@
     rolls.clear();
     locks.clear();
     setScreenShake(0, 0);
-    mainLoop.interval = interval = mainLoop.INTERVAL_BASE;
+    mainLoop.interval = cast(int)(interval = mainLoop.INTERVAL_BASE);
     cnt = 0;
     if (score > prefManager.hiScore[mode][difficulty][parsecSlot])
       prefManager.hiScore[mode][difficulty][parsecSlot] = score;
@@ -396,10 +396,10 @@
 	if (sm > 1.75)
 	  sm = 1.75;
 	interval += (sm * mainLoop.INTERVAL_BASE - interval) * 0.1;
-	mainLoop.interval = interval;
+	mainLoop.interval = cast(int)(interval);
       } else {
 	interval += (mainLoop.INTERVAL_BASE - interval) * 0.08;
-	mainLoop.interval = interval;
+	mainLoop.interval = cast(int)(interval);
       }
     }
   }
@@ -578,7 +578,7 @@
     LetterRender.drawNum(Bonus.bonusScore, 24, 20, 12, LetterRender.TO_UP);
   }
 
-  private void drawLeft() {
+  public void drawLeft() {
     if (left < 0)
       return;
     LetterRender.drawString("LEFT", 520, 260, 25, LetterRender.TO_DOWN);
--- a/src/abagames/p47/P47Screen.d
+++ b/src/abagames/p47/P47Screen.d
@@ -128,7 +128,7 @@
       float ly = std.math.fabs(y2 - y1);
       glBegin(GL_QUADS);
       if (lx < ly) {
-	int n = ly / ds;
+	int n = cast(int)(ly / ds);
 	if (n > 0) {
 	  float xo = (x2 - x1) / n, xos  = 0;
 	  float yo;
@@ -152,7 +152,7 @@
 	  }
 	}
       } else {
-	int n = lx / ds;
+	int n = cast(int)(lx / ds);
 	if (n > 0) {
 	  float yo = (y2 - y1) / n, yos = 0;
 	  float xo;
--- a/src/abagames/p47/Roll.d
+++ b/src/abagames/p47/Roll.d
@@ -40,7 +40,7 @@
   }
 
   public override void init(ActorInitializer ini) {
-    RollInitializer ri = (RollInitializer) ini;
+    RollInitializer ri = cast(RollInitializer) ini;
     ship = ri.ship;
     field = ri.field;
     manager = ri.manager;
--- a/src/abagames/p47/Shot.d
+++ b/src/abagames/p47/Shot.d
@@ -35,7 +35,7 @@
   }
 
   public override void init(ActorInitializer ini) {
-    ShotInitializer si = (ShotInitializer) ini;
+    ShotInitializer si = cast(ShotInitializer) ini;
     field = si.field;
     pos = new Vector;
     vel = new Vector;
--- a/src/abagames/util/sdl/MainLoop.d
+++ b/src/abagames/util/sdl/MainLoop.d
@@ -88,7 +88,7 @@
       if (event.type == SDL_QUIT)
 	breakLoop();
       nowTick = SDL_GetTicks();
-      frame = (int) (nowTick-prvTickCount) / interval;
+      frame = cast(int) (nowTick-prvTickCount) / interval;
       if (frame <= 0) {
 	frame = 1;
 	SDL_Delay(prvTickCount+interval-nowTick);
--- a/src/abagames/util/sdl/Screen3D.d
+++ b/src/abagames/util/sdl/Screen3D.d
@@ -67,8 +67,8 @@
     //gluPerspective(45.0f, (GLfloat)width/(GLfloat)height, nearPlane, farPlane);
     glFrustum(-nearPlane,
 	      nearPlane,
-	      -nearPlane * (GLfloat)height / (GLfloat)width,
-	      nearPlane * (GLfloat)height / (GLfloat)width,
+	      -nearPlane * cast(GLfloat)height / cast(GLfloat)width,
+	      nearPlane * cast(GLfloat)height / cast(GLfloat)width,
 	      0.1f, farPlane);
     glMatrixMode(GL_MODELVIEW);
   }
--- a/src/mt.d
+++ b/src/mt.d
@@ -162,7 +162,7 @@
     y ^= (y << 15) & 0xefc60000UL;
     y ^= (y >> 18);
 
-    return (long)(y>>1);
+    return cast(long)(y>>1);
 }
 
 /* generates a random number on [0,1]-real-interval */
@@ -179,7 +179,7 @@
     y ^= (y << 15) & 0xefc60000UL;
     y ^= (y >> 18);
 
-    return (double)y * (1.0/4294967295.0); 
+    return cast(double)y * (1.0/4294967295.0); 
     /* divided by 2^32-1 */ 
 }
 
@@ -197,7 +197,7 @@
     y ^= (y << 15) & 0xefc60000UL;
     y ^= (y >> 18);
 
-    return (double)y * (1.0/4294967296.0); 
+    return cast(double)y * (1.0/4294967296.0); 
     /* divided by 2^32 */
 }
 
@@ -215,7 +215,7 @@
     y ^= (y << 15) & 0xefc60000UL;
     y ^= (y >> 18);
 
-    return ((double)y + 0.5) * (1.0/4294967296.0); 
+    return (cast(double)y + 0.5) * (1.0/4294967296.0); 
     /* divided by 2^32 */
 }