Merge pull request #425 from PikalaxALT/sync_task

Sync task.c from Emerald

src/task.c

@@ -139,32 +139,20 @@ void TaskDummy(u8 taskId)
 {
 }
 
-#define TASK_DATA_OP(taskId, offset, op)                    \
-{                                                           \
-    u32 tasksAddr = (u32)gTasks;                            \
-    u32 addr = taskId * sizeof(struct Task) + offset;       \
-    u32 dataAddr = tasksAddr + offsetof(struct Task, data); \
-    addr += dataAddr;                                       \
-    op;                                                     \
-}
-
 void SetTaskFuncWithFollowupFunc(u8 taskId, TaskFunc func, TaskFunc followupFunc)
 {
-    TASK_DATA_OP(taskId, 28, *((u16 *)addr) = (u32)followupFunc)
-    TASK_DATA_OP(taskId, 30, *((u16 *)addr) = (u32)followupFunc >> 16)
+    u8 followupFuncIndex = NUM_TASK_DATA - 2; // Should be const.
+
+    gTasks[taskId].data[followupFuncIndex] = (s16)((u32)followupFunc);
+    gTasks[taskId].data[followupFuncIndex + 1] = (s16)((u32)followupFunc >> 16); // Store followupFunc as two half-words in the data array.
     gTasks[taskId].func = func;
 }
 
 void SwitchTaskToFollowupFunc(u8 taskId)
 {
-    s32 func;
+    u8 followupFuncIndex = NUM_TASK_DATA - 2; // Should be const.
 
-    gTasks[taskId].func = NULL;
-
-    TASK_DATA_OP(taskId, 28, func = *((u16 *)addr))
-    TASK_DATA_OP(taskId, 30, func |= *((s16 *)addr) << 16)
-
-    gTasks[taskId].func = (TaskFunc)func;
+    gTasks[taskId].func = (TaskFunc)((u16)(gTasks[taskId].data[followupFuncIndex]) | (gTasks[taskId].data[followupFuncIndex + 1] << 16));
 }
 
 bool8 FuncIsActiveTask(TaskFunc func)