From a09ff6a165ded27abed68edd4067acd494ec5221 Mon Sep 17 00:00:00 2001
From: Bendegúz Nagy
Date: Thu, 30 Jun 2016 12:35:02 +0200
Subject: DM: Add F0114_DUNGEONVIEW_GetExplosionBitmap

---
 engines/dm/TODOs/methodtree.txt |  2 +-
 engines/dm/gfx.cpp              | 26 ++++++++++++++++++++++++++
 engines/dm/gfx.h                |  4 +++-
 3 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/engines/dm/TODOs/methodtree.txt b/engines/dm/TODOs/methodtree.txt
index 7a05ad177f..da5e0ccca9 100644
--- a/engines/dm/TODOs/methodtree.txt
+++ b/engines/dm/TODOs/methodtree.txt
@@ -2,7 +2,7 @@ F0115_DUNGEONVIEW_DrawObjectsCreaturesProjectilesExplosions_CPSEF
 	F0113_DUNGEONVIEW_DrawField // stub method
 		F0133_VIDEO_BlitBoxFilledWithMaskedBitmap // dummy
 		FIELD_ASPECT // done
-	F0114_DUNGEONVIEW_GetExplosionBitmap
+	F0114_DUNGEONVIEW_GetExplosionBitmap // done
 	F0133_VIDEO_BlitBoxFilledWithMaskedBitmap // dummy
 	F0141_DUNGEON_GetObjectInfoIndex
 	F0142_DUNGEON_GetProjectileAspect
diff --git a/engines/dm/gfx.cpp b/engines/dm/gfx.cpp
index 2fa2bf5d5a..81b53d4ba6 100644
--- a/engines/dm/gfx.cpp
+++ b/engines/dm/gfx.cpp
@@ -39,6 +39,8 @@ namespace DM {
 
 Box gBoxMovementArrows = Box(224, 319, 124, 168);
 
+byte gPalChangeSmoke[16] = {0, 10, 20, 30, 40, 50, 120, 10, 80, 90, 100, 110, 120, 130, 140, 150}; // @ G0212_auc_Graphic558_PaletteChanges_Smoke
+
 ExplosionAspect gExplosionAspects[kExplosionAspectCount] = { // @ G0211_as_Graphic558_ExplosionAspects
 	/* { ByteWidth, Height } */
 	ExplosionAspect(80, 111),   /* Fire   */
@@ -998,6 +1000,30 @@ void DisplayMan::flipBitmapVertical(byte *bitmap, uint16 width, uint16 height) {
 	delete[] tmp;
 }
 
+byte* DisplayMan::getExplosionBitmap(uint16 explosionAspIndex, uint16 scale, int16& returnPixelWidth, int16& returnHeight) {
+	ExplosionAspect *explAsp = &gExplosionAspects[explosionAspIndex];
+	if (scale > 32)
+		scale = 32;
+	int16 pixelWidth = getScaledDimension(explAsp->_pixelWidth, scale);
+	int16 height = getScaledDimension(explAsp->_height, scale);
+	byte *bitmap;
+	int16 derBitmapIndex = (explosionAspIndex * 14) + scale / 2 + kDerivedBitmapFirstExplosion - 2;
+	if ((scale == 32) && (explosionAspIndex != kExplosionAspectSmoke)) {
+		bitmap = getBitmap(explosionAspIndex + kFirstExplosionGraphicIndice);
+	} else if (isDerivedBitmapInCache(derBitmapIndex)) {
+		bitmap = getDerivedBitmap(derBitmapIndex);
+	} else {
+		byte *nativeBitmap = getBitmap(MIN(explosionAspIndex, (uint16)kExplosionAspectPoison) + kFirstExplosionGraphicIndice);
+		bitmap = getDerivedBitmap(derBitmapIndex);
+		blitToBitmapShrinkWithPalChange(nativeBitmap, explAsp->_pixelWidth, explAsp->_height, bitmap, pixelWidth, height,
+			(explosionAspIndex == kExplosionAspectSmoke) ? gPalChangeSmoke : gPalChangesNoChanges);
+		warning("IGNORED CODE: F0493_CACHE_AddDerivedBitmap");
+	}
+
+	returnPixelWidth = pixelWidth;
+	returnHeight = height;
+	return bitmap;
+}
 
 
 void DisplayMan::updateScreen() {
diff --git a/engines/dm/gfx.h b/engines/dm/gfx.h
index 34a1399366..2df0ac0a5c 100644
--- a/engines/dm/gfx.h
+++ b/engines/dm/gfx.h
@@ -166,7 +166,8 @@ enum GraphicIndice {
 	kObjectDescCircleIndice = 29, // @ C029_GRAPHIC_OBJECT_DESCRIPTION_CIRCLE
 	kFloorOrn_15_D3L_footprints = 241, // @ C241_GRAPHIC_FLOOR_ORNAMENT_15_D3L_FOOTPRINTS
 	kFieldMask_D3R_GraphicIndice = 69, // @ C069_GRAPHIC_FIELD_MASK_D3R
-	kFieldTeleporterGraphicIndice = 73 // @ C073_GRAPHIC_FIELD_TELEPORTER
+	kFieldTeleporterGraphicIndice = 73, // @ C073_GRAPHIC_FIELD_TELEPORTER
+	kFirstExplosionGraphicIndice = 348 // @ C348_GRAPHIC_FIRST_EXPLOSION
 };
 
 extern uint16 gPalSwoosh[16];
@@ -457,6 +458,7 @@ public:
 
 	void flipBitmapHorizontal(byte *bitmap, uint16 width, uint16 height);
 	void flipBitmapVertical(byte *bitmap, uint16 width, uint16 height);
+	byte *getExplosionBitmap(uint16 explosionAspIndex, uint16 scale, int16 &returnPixelWidth, int16 &returnHeight); // @ F0114_DUNGEONVIEW_GetExplosionBitmap
 
 	void clearBitmap(byte *bitmap, uint16 width, uint16 height, Color color);
 	void clearScreen(Color color);
-- 
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