Now scrolling the galactic map by clicking and dragging.

src/galaxy/galacticMap.c

@@ -57,6 +57,7 @@ static int pulseTimer;
 static float ssx, ssy;
 static float arrowPulse;
 static int show;
+static int scrollingMap;
 static Widget *startMissionButton;
 
 void initGalacticMap(void)
@@ -151,6 +152,8 @@ static void doStarSystems(void)
 	StarSystem *starSystem;
 	int cx, cy;
 	
+	if (!scrollingMap)
+	{
 		cx = app.mouse.x - 32;
 		cy = app.mouse.y - 32;
 		
@@ -178,12 +181,11 @@ static void doStarSystems(void)
 				starSystem->side = SIDE_PANDORAN;
 			}
 		}
+	}
 }
 
 static void scrollGalaxy(void)
 {
-	int dist;
-	float dx, dy;
 	int lastX, lastY;
 	
 	lastX = camera.x;
@@ -191,20 +193,13 @@ static void scrollGalaxy(void)
 	
 	ssx = ssy = 0;
 	
-	dist = getDistance(SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2, app.mouse.x, app.mouse.y);
-	if (dist > 256)
+	if (scrollingMap)
 	{
-		dx = (SCREEN_WIDTH / 2) - app.mouse.x;
-		dy = (SCREEN_HEIGHT / 2) - app.mouse.y;
+		camera.x -= app.mouse.dx * 1.5;
+		camera.y -= app.mouse.dy * 1.5;
 		
-		dx /= 35;
-		dy /= 35;
-		
-		camera.x -= dx;
-		camera.y -= dy;
-		
-		ssx = -(dx / 5);
-		ssy = -(dy / 5);
+		ssx = -(app.mouse.dx / 3);
+		ssy = -(app.mouse.dy / 3);
 		
 		camera.x = MAX(-800, MIN(camera.x, 2464));
 		camera.y = MAX(-475, MIN(camera.y, 1235));
@@ -591,10 +586,16 @@ static void handleKeyboard(void)
 
 static void handleMouse(void)
 {
-	switch (show)
+	if (app.mouse.button[SDL_BUTTON_LEFT])
 	{
-		case SHOW_STATS:
-			break;
+		if (app.mouse.dx != 0 || app.mouse.dy != 0)
+		{
+			scrollingMap = 1;
+		}
+	}
+	else
+	{
+		scrollingMap = 0;
 	}
 }
 

src/main.c

@@ -60,6 +60,10 @@ int main(int argc, char *argv[])
 		{
 			switch (event.type)
 			{
+				case SDL_MOUSEMOTION:
+					doMouseMotion(&event.motion);
+					break;
+				
 				case SDL_MOUSEWHEEL:
 					doMouseWheel(&event.wheel);
 					break;
@@ -125,6 +129,9 @@ int main(int argc, char *argv[])
 			expireTextTimer = SDL_GetTicks() + (1000 * 10);
 		}
 		
+		/* always zero the mouse motion */
+		app.mouse.dx = app.mouse.dy = 0;
+
 		SDL_Delay(1);
 	}
 

src/main.h

@@ -34,6 +34,7 @@ extern void saveScreenshot(void);
 extern void doMouseDown(SDL_MouseButtonEvent *event);
 extern void doMouseUp(SDL_MouseButtonEvent *event);
 extern void doMouseWheel(SDL_MouseWheelEvent *event);
+extern void doMouseMotion(SDL_MouseMotionEvent *event);
 extern void doDevKeys(void);
 extern void expireTexts(int all);
 

src/structs.h

@@ -356,6 +356,8 @@ typedef struct {
 	int y;
 	int w;
 	int h;
+	int dx;
+	int dy;
 	int button[MAX_MOUSE_BUTTONS];
 } Mouse;
 

src/system/input.c

@@ -54,6 +54,12 @@ void doMouseWheel(SDL_MouseWheelEvent *event)
 	}
 }
 
+void doMouseMotion(SDL_MouseMotionEvent *event)
+{
+	app.mouse.dx = event->xrel;
+	app.mouse.dy = event->yrel;
+}
+
 void setMouse(int x, int y)
 {
 	SDL_Event event;