#368 GBA cart rumble support

src/platform/gba/common.h

@@ -136,6 +136,7 @@ typedef int16              Index;
 
 // system
 int32 osGetSystemTimeMS();
+void osJoyVibrate(int32 index, int32 L, int32 R);
 
 #ifdef PROFILING
     #define PROFILE_FRAME\

src/platform/gba/lara.h

@@ -1479,7 +1479,7 @@ struct Lara : Item
     {
         if ((state == STATE_FAST_DIVE || state == STATE_ROLL_AIR) && vSpeed > 133)
         {
-            health = 0;
+            hit(LARA_MAX_HEALTH, pos, 0);
             return true;
         }
 
@@ -1495,9 +1495,9 @@ struct Lara : Item
             return false;
 
         if (vSpeed > 154) {
-            health = 0;
+            hit(LARA_MAX_HEALTH, pos, 0);
         } else {
-            health -= (X_SQR(vSpeed - 140) * LARA_MAX_HEALTH) / 196;
+            hit((X_SQR(vSpeed - 140) * LARA_MAX_HEALTH) / 196, pos, 0);
         }
 
         return health <= 0;
@@ -1799,6 +1799,7 @@ struct Lara : Item
                 vSpeed = 1;
             }
         } else if (!slide && ((cinfo.type == CT_FRONT) || (cinfo.type == CT_FRONT_CEILING))) {
+            osJoyVibrate(0, 0xFF, 0xFF);
             animSet(ANIM_SMASH_JUMP, true, 1);
             extraL->moveAngle += ANGLE_180;
             hSpeed >>= 2;
@@ -3720,6 +3721,15 @@ struct Lara : Item
         }
     }
 
+    virtual void hit(int32 damage, const vec3i &point, int32 soundId)
+    {
+        if (health <= 0 || damage <= 0)
+            return;
+
+        osJoyVibrate(0, 0xFF, 0xFF);
+        health -= damage;
+    }
+
     virtual void update()
     {
         gCamera = extraL->camera;
@@ -3738,7 +3748,7 @@ struct Lara : Item
                 if (oxygen > 0) {
                     oxygen--;
                 } else {
-                    health -= 5;
+                    hit(5, pos, 0);
                 }
             } else {
                 oxygen = X_MIN(oxygen + 10, LARA_MAX_OXYGEN);

src/platform/gba/main.cpp

@@ -59,6 +59,44 @@ int32 fpsCounter = 0;
     {
         return 0; // TODO
     }
+
+    #define GPIO_RUMBLE_DATA      (*(vu16*)0x80000C4)
+    #define GPIO_RUMBLE_DIRECTION (*(vu16*)0x80000C6)
+    #define GPIO_RUMBLE_CONTROL   (*(vu16*)0x80000C8)
+    #define GPIO_RUMBLE_MASK      (1 << 3)
+
+    #define CART_RUMBLE_TICKS     3
+
+    int32 cartRumbleTick = 0;
+
+    void rumbleInit()
+    {
+        GPIO_RUMBLE_DIRECTION = GPIO_RUMBLE_MASK;
+        GPIO_RUMBLE_CONTROL = 1;
+    }
+
+    void rumbleSet(bool enable)
+    {
+        if (enable) {
+            GPIO_RUMBLE_DATA |= GPIO_RUMBLE_MASK;
+            cartRumbleTick = CART_RUMBLE_TICKS;
+        } else {
+            GPIO_RUMBLE_DATA &= ~GPIO_RUMBLE_MASK;
+            cartRumbleTick = 0;
+        }
+    }
+
+    void rumbleUpdate()
+    {
+        if (!cartRumbleTick || --cartRumbleTick)
+            return;
+        rumbleSet(false);
+    }
+
+    void osJoyVibrate(int32 index, int32 L, int32 R)
+    {
+        rumbleSet(X_MAX(L, R) > 0);
+    }
 #elif defined(__TNS__)
     unsigned int osTime;
     volatile unsigned int *timerBUS;
@@ -552,6 +590,7 @@ int main(void) {
         }
     }
 
+    rumbleInit();
     soundInit();
 
     game.init();
@@ -564,7 +603,10 @@ int main(void) {
 
     int32 lastFrameIndex = -1;
 
-    while (1) {
+    while (1)
+    {
+        rumbleUpdate();
+
         { // input
             keys = 0;
             key_poll();