shithub: riscv

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games/doom: fix glitchy mouse movement

use all mouse deltas during a tic instead of just the last one, to
prevent extremely annoying stutters and jumps in mouse movement;
adjust filtering/sensitivity, without additional knobs

--- a/sys/src/games/doom/g_game.c

+++ b/sys/src/games/doom/g_game.c

@@ -508,8 +508,8 @@

 	mousebuttons[0] = ev->data1 & 1; 

 	mousebuttons[1] = ev->data1 & 2; 

 	mousebuttons[2] = ev->data1 & 4; 

-	mousex = ev->data2*(mouseSensitivity+5)/10; 

-	mousey = ev->data3*(mouseSensitivity+5)/10; 

+	mousex += ev->data2*0.5*(mouseSensitivity+1); 

+	mousey += ev->data3*0.5*(mouseSensitivity+1); 

 	return true;    // eat events 

       case ev_joystick: 

--- a/sys/src/games/doom/i_video.c

+++ b/sys/src/games/doom/i_video.c

@@ -395,8 +395,8 @@

 			e.type = ev_mouse;

 			e.data1 = m.buttons;

-			e.data2 = 10*(m.xy.x - om.xy.x);

-			e.data3 = 10*(om.xy.y - m.xy.y);

+			e.data2 = m.xy.x - om.xy.x;

+			e.data3 = om.xy.y - m.xy.y;

 			D_PostEvent(&e);

 			om = m;

--- a/sys/src/games/doom/m_menu.c

+++ b/sys/src/games/doom/m_menu.c

@@ -945,7 +945,7 @@

 		       W_CacheLumpName(msgNames[showMessages],PU_CACHE));

     M_DrawThermo(OptionsDef.x,OptionsDef.y+LINEHEIGHT*(mousesens+1),

-		 10,mouseSensitivity);

+		 9,mouseSensitivity);

     M_DrawThermo(OptionsDef.x,OptionsDef.y+LINEHEIGHT*(scrnsize+1),

 		 9,screenSize);

@@ -1099,7 +1099,7 @@

 	    mouseSensitivity--;

 	break;

       case 1:

-	if (mouseSensitivity < 9)

+	if (mouseSensitivity < 8)

 	    mouseSensitivity++;

 	break;

     }