fade_overlay.c

The fade overlay drawn on the ground beside an actor. Part of object.c, the field object, compiled only through it.

Each frame of the fade overlay: on each of the two cells beside the actor (left and right of it), where the ground one or two cells south rises above the actor's floor, draws a semi-transparent 16-pixel-wide sprite of colour 1 at the height of that ground. Registered as a scheduler callback by BattleFx_StartFadeOverlay; reads the work in heap slot 36 and queues the marks with Runtime_PushSlotEntry.

Used by BattleFx_StartFadeOverlay, FadeOverlay_Resume, FadeOverlay_Suspend.

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BattleFx_StartFadeOverlay

void BattleFx_StartFadeOverlay(void *object)

Starts the fade overlay on object (the party leader when NULL): loads its solid tiles, sets the blending and draws it each frame. Allocates heap slot 36 for its work, borrows heap block 14 for the tiles (0x200 bytes of colour 1, VRAM cache block 94) and registers FadeOverlay_DrawMarks. Called by seven scene overlays (Venus and Mercury Lighthouses, Kalay, the tunnel ruins, Crossbone Isle, the ice room by Imil and Fuchin Falls); Crossbone Isle then switches it on and off by setting the work's actor. No ☀️ code stops it (FadeOverlay_Suspend has no named caller): the work and the callback last until the next scene change resets the heap and the task table (Game_ResetForNewGame).

Used by ImilFuchinFalls_PrepareRoom, Kalay_PrepareTunnel, Scene_Initialize, Scene_RunEntrySetup, TunnelRuins_Initialize.

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