Attempt to decompile frChooseFarsightTarget

src/game/bondmove.c

@@ -4847,7 +4847,7 @@ glabel var7f1ad8e4
 //			g_Vars.currentplayer->gunzoomfovs[1] = fStack436;
 //
 //			func00015b68(currentPlayerGetMatrix(),
-//					&g_Vars.currentplayer->unk025c->pos, &fStack456.pos);
+//					&g_Vars.currentplayer->autoeraserprop->pos, &fStack456.pos);
 //
 //			func0f0b4eb8(&fStack456.pos, (struct coord *)&fStack456, fStack436,
 //					g_Vars.currentplayer->c_perspaspect);

src/game/game_0601b0.c

@@ -5493,7 +5493,7 @@ glabel func0f064ce8
 /*  f064d78:	24140003 */ 	addiu	$s4,$zero,0x3
 /*  f064d7c:	10400009 */ 	beqz	$v0,.L0f064da4
 /*  f064d80:	00000000 */ 	nop
-/*  f064d84:	0fc6829c */ 	jal	func0f1a0a70
+/*  f064d84:	0fc6829c */ 	jal	frChooseFarsightTarget
 /*  f064d88:	00000000 */ 	nop
 /*  f064d8c:	14400007 */ 	bnez	$v0,.L0f064dac
 /*  f064d90:	00000000 */ 	nop

src/game/training.c

@@ -3797,7 +3797,7 @@ void func0f1a0924(struct prop *prop)
 }
 
 GLOBAL_ASM(
-glabel func0f1a0a70
+glabel frChooseFarsightTarget
 /*  f1a0a70:	27bdffa0 */ 	addiu	$sp,$sp,-96
 /*  f1a0a74:	f7bc0030 */ 	sdc1	$f28,0x30($sp)
 /*  f1a0a78:	3c013f80 */ 	lui	$at,0x3f80
@@ -3916,6 +3916,52 @@ glabel func0f1a0a70
 /*  f1a0c2c:	27bd0060 */ 	addiu	$sp,$sp,0x60
 );
 
+// Mismatch because f26 and f28 are swapped and the multiplication order for
+// unk1c is different. f26 should be constant 0 (used in dist > 0 and value < 0
+// checks) and f28 should be bestvalue.
+//bool frChooseFarsightTarget(void)
+//{
+//	f32 bestvalue = 1;
+//	f32 bestdist = -1;
+//	struct prop *bestprop = NULL;
+//	bool found = false;
+//	s32 i;
+//
+//	if (getCurrentPlayerWeaponId(0) == WEAPON_FARSIGHTXR20) {
+//		for (i = 0; i < ARRAYCOUNT(g_FiringRangeData.targets); i++) {
+//			if (g_FiringRangeData.targets[i].unk00_01
+//					&& g_FiringRangeData.targets[i].unk00_03 == 0
+//					&& g_FiringRangeData.targets[i].unk00_02
+//					&& g_FiringRangeData.targets[i].flags & FRTARGETFLAG_40) {
+//				struct prop *prop = g_FiringRangeData.targets[i].prop;
+//				f32 xdiff = g_Vars.currentplayer->bond2.unk10.x - prop->pos.x;
+//				f32 ydiff = g_Vars.currentplayer->bond2.unk10.y - prop->pos.y;
+//				f32 zdiff = g_Vars.currentplayer->bond2.unk10.z - prop->pos.z;
+//				f32 dist = sqrtf(xdiff * xdiff + ydiff * ydiff + zdiff * zdiff);
+//
+//				if (dist > 0) {
+//					f32 value = (
+//							g_Vars.currentplayer->bond2.unk1c.x * xdiff +
+//							g_Vars.currentplayer->bond2.unk1c.y * ydiff +
+//							g_Vars.currentplayer->bond2.unk1c.z * zdiff) / dist;
+//
+//					if (value < 0 && value < bestvalue) {
+//						bestvalue = value;
+//						bestprop = prop;
+//						bestdist = dist;
+//						found = true;
+//					}
+//				}
+//			}
+//		}
+//	}
+//
+//	g_Vars.currentplayer->autoeraserdist = bestdist;
+//	g_Vars.currentplayer->autoerasertarget = bestprop;
+//
+//	return found;
+//}
+
 s32 frIsInTraining(void)
 {
 	if (g_FiringRangeData.unk464 > 0 &&

src/include/constants.h

@@ -604,6 +604,7 @@
 #define FRFAILREASON_INACCURATE        4
 
 #define FRTARGETFLAG_20 0x20
+#define FRTARGETFLAG_40 0x40
 
 #define FRZONE_RING3    1
 #define FRZONE_RING2    2

src/include/game/training.h

@@ -57,7 +57,7 @@ struct prop *frChooseAutogunTarget(struct coord *arg0);
 u32 func0f19f524(void);
 void frTick(void);
 void func0f1a0924(struct prop *prop);
-u32 func0f1a0a70(void);
+bool frChooseFarsightTarget(void);
 s32 frIsInTraining(void);
 u32 func0f1a0cc0(void);
 void func0f1a0fc8(void);

src/include/types.h

@@ -2138,7 +2138,7 @@ struct player {
 	/*0x0250*/ u8 activemenumode;
 	/*0x0254*/ u32 erasertime; // related to FarSight's auto tracking
 	/*0x0258*/ f32 autoeraserdist;
-	/*0x025c*/ struct prop *unk025c; // eraser target?
+	/*0x025c*/ struct prop *autoerasertarget;
 	/*0x0260*/ s32 aimtaptime;
 	/*0x0264*/ struct weaponobj *slayerrocket;
 	/*0x0268*/ bool eyesshut;