The first commit

src/core2/roll.c

@@ -0,0 +1,68 @@
+#include <ultra64.h>
+#include "functions.h"
+#include "variables.h"
+
+f32 D_8037C680; //roll
+f32 D_8037C684; //roll_ideal
+f32 D_8037C688; //roll_angular_velocity_limit
+f32 D_8037C68C; //roll_ideal
+
+static void __roll_update(f32 limit, f32 step_percent){
+        f32 diff;
+        f32 val;
+        f32 tick = time_getDelta();
+        f32 max;
+        
+        max = limit*tick;
+        diff = D_8037C684 - D_8037C680;
+        if(180.0f < mlAbsF(diff)){
+            diff += (diff < 0.0f)? 360.0: -360.0;
+        }
+
+        val = diff * step_percent * tick;
+        val = (val < 0) ? mlClamp_f(val, -max, -0.1f) : mlClamp_f(val, 0.1f, max);
+
+        D_8037C680 =( mlAbsF(val) <= mlAbsF(diff)) ?  D_8037C680 + val : D_8037C684;
+
+        if(D_8037C680 < 360.0){
+            if(D_8037C680 < 0.0)
+                D_8037C680 += 360.0;
+        }
+        else 
+            D_8037C680 -= 360.0;
+}
+
+void roll_reset(void){
+    D_8037C680 = 0.0f;
+    D_8037C684 = 0.0f;
+    roll_setAngularVelocity(700.0f, 7.5f);
+}
+
+void roll_update(void){
+    __roll_update(D_8037C688, D_8037C68C);
+}
+
+void roll_setIdeal(f32 arg0){
+    D_8037C684 = mlNormalizeAngle(arg0);
+}
+
+void roll_set(f32 arg0){
+    D_8037C680 = mlNormalizeAngle(arg0);
+}
+
+void roll_applyIdeal(void){
+    D_8037C680 = D_8037C684;
+}
+
+f32 roll_get(void){
+    return D_8037C680;
+}
+
+f32 roll_getIdeal(void){
+    return D_8037C684;
+}
+
+void roll_setAngularVelocity(f32 limit, f32 rate){
+    D_8037C688 = limit;
+    D_8037C68C = rate;
+}