yaze::zelda3::DungeonObjectRenderer Class Reference

Renders dungeon objects from Link to the Past. More...

#include <object_renderer.h>

Collaboration diagram for yaze::zelda3::DungeonObjectRenderer:

Public Member Functions
	DungeonObjectRenderer ()=default
void	LoadObject (uint32_t routine_ptr, std::array< uint8_t, 16 > &sheet_ids)
	Loads and renders a dungeon object.
void	ConfigureObject ()
	Configures the CPU state for object rendering.
void	RenderObject (uint32_t routine_ptr)
	Executes the object drawing routine.
void	UpdateObjectBitmap ()
	Updates the bitmap with the rendered object.
auto	mutable_memory ()
auto	rom ()
auto	mutable_rom ()

Private Attributes
std::vector< uint8_t >	tilemap_
std::vector< uint8_t >	rom_data_
PseudoVram	vram_
Rom *	rom_
emu::Snes	snes_
gfx::Bitmap	bitmap_

Detailed Description

Renders dungeon objects from Link to the Past.

This class uses the emulator subsystem to simulate the SNES CPU drawing routines for dungeon objects. It captures the tile data written to memory and renders it to a bitmap.

Definition at line 32 of file object_renderer.h.

Constructor & Destructor Documentation

DungeonObjectRenderer()

yaze::zelda3::DungeonObjectRenderer::DungeonObjectRenderer ( )

default

Member Function Documentation

LoadObject()

void yaze::zelda3::DungeonObjectRenderer::LoadObject	(	uint32_t	routine_ptr,
		std::array< uint8_t, 16 > &	sheet_ids )

Loads and renders a dungeon object.

Parameters

routine_ptr	Pointer to the drawing routine in ROM
sheet_ids	Array of graphics sheet IDs used by the object

Definition at line 8 of file object_renderer.cc.

References ConfigureObject(), RenderObject(), rom(), rom_data_, snes_, and vram_.

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ConfigureObject()

void yaze::zelda3::DungeonObjectRenderer::ConfigureObject

(

)

Configures the CPU state for object rendering.

Definition at line 22 of file object_renderer.cc.

References snes_.

Referenced by LoadObject().

RenderObject()

void yaze::zelda3::DungeonObjectRenderer::RenderObject

(

uint32_t

routine_ptr

)

Executes the object drawing routine.

Parameters

routine_ptr

Pointer to the drawing routine in ROM

Example: the STA $BF, $CD, $C2, $CE are the location of the object in the room $B2 is used for size loop so if object size is setted on 07 that draw code will be repeated 7 times and since Y is increasing by 4 it makes the object draw from left to right

RoomDraw_Rightwards2x2_1to15or32: #_018B89: JSR RoomDraw_GetSize_1to15or32 .next #_018B8C: JSR RoomDraw_Rightwards2x2 #_018B8F: DEC.b $B2 #_018B91: BNE .next #_018B93: RTS

RoomDraw_Rightwards2x2: #_019895: LDA.w RoomDrawObjectData+0,X #_019898: STA.b [$BF],Y #_01989A: LDA.w RoomDrawObjectData+2,X #_01989D: STA.b [$CB],Y #_01989F: LDA.w RoomDrawObjectData+4,X #_0198A2: STA.b [$C2],Y #_0198A4: LDA.w RoomDrawObjectData+6,X #_0198A7: STA.b [$CE],Y #_0198A9: INY #4 #_0198AD: RTS

Definition at line 62 of file object_renderer.cc.

References snes_, and UpdateObjectBitmap().

Referenced by LoadObject().

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UpdateObjectBitmap()

void yaze::zelda3::DungeonObjectRenderer::UpdateObjectBitmap

(

)

Updates the bitmap with the rendered object.

Definition at line 106 of file object_renderer.cc.

References yaze::gfx::Arena::Get(), yaze::gfx::Arena::mutable_gfx_sheets(), snes_, tilemap_, and vram_.

Referenced by RenderObject().

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mutable_memory()

auto yaze::zelda3::DungeonObjectRenderer::mutable_memory ( )

inline

Definition at line 61 of file object_renderer.h.

References tilemap_.

rom()

auto yaze::zelda3::DungeonObjectRenderer::rom ( )

inline

Definition at line 62 of file object_renderer.h.

References rom_.

Referenced by LoadObject().

mutable_rom()

auto yaze::zelda3::DungeonObjectRenderer::mutable_rom ( )

inline

Definition at line 63 of file object_renderer.h.

References rom_.

Member Data Documentation

tilemap_

std::vector<uint8_t> yaze::zelda3::DungeonObjectRenderer::tilemap_

private

Definition at line 66 of file object_renderer.h.

Referenced by mutable_memory(), and UpdateObjectBitmap().

rom_data_

std::vector<uint8_t> yaze::zelda3::DungeonObjectRenderer::rom_data_

private

Definition at line 67 of file object_renderer.h.

Referenced by LoadObject().

vram_

PseudoVram yaze::zelda3::DungeonObjectRenderer::vram_

private

Definition at line 69 of file object_renderer.h.

Referenced by LoadObject(), and UpdateObjectBitmap().

rom_

Rom* yaze::zelda3::DungeonObjectRenderer::rom_

private

Definition at line 71 of file object_renderer.h.

Referenced by mutable_rom(), and rom().

snes_

emu::Snes yaze::zelda3::DungeonObjectRenderer::snes_

private

Definition at line 72 of file object_renderer.h.

Referenced by ConfigureObject(), LoadObject(), RenderObject(), and UpdateObjectBitmap().

bitmap_

gfx::Bitmap yaze::zelda3::DungeonObjectRenderer::bitmap_

private

Definition at line 73 of file object_renderer.h.

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The documentation for this class was generated from the following files:

• src/app/zelda3/dungeon/object_renderer.h
• src/app/zelda3/dungeon/object_renderer.cc