From b8390fa161c0c324af0e52a4f3a740cca9e9a479 Mon Sep 17 00:00:00 2001
From: sluicebox
Date: Fri, 15 Nov 2019 01:38:21 -0800
Subject: GRAPHICS: Add interface for horizontal shake

---
 backends/platform/ds/arm9/source/dsmain.cpp     | 14 ++++++++------
 backends/platform/ds/arm9/source/dsmain.h       |  2 +-
 backends/platform/ds/arm9/source/osystem_ds.cpp |  4 ++--
 backends/platform/ds/arm9/source/osystem_ds.h   |  2 +-
 4 files changed, 12 insertions(+), 10 deletions(-)

(limited to 'backends/platform/ds')

diff --git a/backends/platform/ds/arm9/source/dsmain.cpp b/backends/platform/ds/arm9/source/dsmain.cpp
index 041892aed6..b0f61322d5 100644
--- a/backends/platform/ds/arm9/source/dsmain.cpp
+++ b/backends/platform/ds/arm9/source/dsmain.cpp
@@ -260,7 +260,8 @@ static SpriteEntry spritesMain[128];
 static int tweak;
 
 // Shake
-static int s_shakePos = 0;
+static int s_shakeXOffset = 0;
+static int s_shakeYOffset = 0;
 
 // Keyboard
 static bool keyboardEnable = false;
@@ -1016,8 +1017,9 @@ void displayMode16BitFlipBuffer() {
 	#endif
 }
 
-void setShakePos(int shakePos) {
-	s_shakePos = shakePos;
+void setShakePos(int shakeXOffset, int shakeYOffset) {
+	s_shakeXOffset = shakeXOffset;
+	s_shakeYOffset = shakeYOffset;
 }
 
 
@@ -2096,7 +2098,7 @@ void VBlankHandler(void) {
 		SUB_BG3_CX = subScX + 64;
 	}
 
-	SUB_BG3_CY = subScY + (s_shakePos << 8);*/
+	SUB_BG3_CY = subScY + (s_shakeYOffset << 8);*/
 
 	/*SUB_BG3_XDX = (int) (subScreenWidth / 256.0f * 256);
 	SUB_BG3_XDY = 0;
@@ -2228,7 +2230,7 @@ void VBlankHandler(void) {
 			setZoomedScreenScale(subScreenWidth, ((subScreenHeight * (256 << 8)) / 192) >> 8);
 
 
-			setMainScreenScroll(scX << 8, (scY << 8) + (s_shakePos << 8));
+			setMainScreenScroll(scX << 8, (scY << 8) + (s_shakeYOffset << 8));
 			setMainScreenScale(256, 256);		// 1:1 scale
 
 		} else {
@@ -2244,7 +2246,7 @@ void VBlankHandler(void) {
 			setZoomedScreenScroll(subScX, subScY, (subScreenWidth != 256) && (subScreenWidth != 128));
 			setZoomedScreenScale(subScreenWidth, ((subScreenHeight * (256 << 8)) / 192) >> 8);
 
-			setMainScreenScroll(64, (scY << 8) + (s_shakePos << 8));
+			setMainScreenScroll(64, (scY << 8) + (s_shakeYOffset << 8));
 			setMainScreenScale(320, 256);		// 1:1 scale
 
 		}
diff --git a/backends/platform/ds/arm9/source/dsmain.h b/backends/platform/ds/arm9/source/dsmain.h
index 7345fc2ceb..b413c70763 100644
--- a/backends/platform/ds/arm9/source/dsmain.h
+++ b/backends/platform/ds/arm9/source/dsmain.h
@@ -112,7 +112,7 @@ void	setShowCursor(bool enable);
 void	setMouseCursorVisible(bool visible);
 
 // Shake
-void 	setShakePos(int shakePos);
+void 	setShakePos(int shakeXOffset, int shakeYOffset);
 
 // Reports
 void 	memoryReport();
diff --git a/backends/platform/ds/arm9/source/osystem_ds.cpp b/backends/platform/ds/arm9/source/osystem_ds.cpp
index 9abeb59474..c9a1f08758 100644
--- a/backends/platform/ds/arm9/source/osystem_ds.cpp
+++ b/backends/platform/ds/arm9/source/osystem_ds.cpp
@@ -490,8 +490,8 @@ void OSystem_DS::updateScreen() {
 	}
 }
 
-void OSystem_DS::setShakePos(int shakeOffset) {
-	DS::setShakePos(shakeOffset);
+void OSystem_DS::setShakePos(int shakeXOffset, int shakeYOffset) {
+	DS::setShakePos(shakeXOffset, shakeYOffset);
 }
 
 void OSystem_DS::showOverlay() {
diff --git a/backends/platform/ds/arm9/source/osystem_ds.h b/backends/platform/ds/arm9/source/osystem_ds.h
index c2813d11e4..5db644bed5 100644
--- a/backends/platform/ds/arm9/source/osystem_ds.h
+++ b/backends/platform/ds/arm9/source/osystem_ds.h
@@ -103,7 +103,7 @@ public:
 
 	virtual void copyRectToScreen(const void *buf, int pitch, int x, int y, int w, int h);
 	virtual void updateScreen();
-	virtual void setShakePos(int shakeOffset);
+	virtual void setShakePos(int shakeXOffset, int shakeYOffset);
 
 	virtual void showOverlay();
 	virtual void hideOverlay();
-- 
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