/ld27 : revision 2

To get this branch, use:

bzr branch
http://9ix.org/bzr/ld27

« back to all changes in this revision

Viewing changes to zoetrope/sprites/map.lua

Committer: Josh C
Date: 2013-08-24 03:13:51 UTC
Revision ID: josh@9ix.org-20130824031351-57r2dte8azpqpnvl

builder

Show diffs side-by-side

added added

removed removed

zoetrope/sprites/map.lua

-- nb. The tile at (0, 0) visually is stored in [1, 1].

map = {},

spriteBatches = {},

prevStartX = nil,

prevStartY = nil,

prevEndX = nil,

prevEndY = nil,

-- Method: empty

-- Creates an empty map.

345

339

-- determine drawing bounds

346

340

-- we draw to fill the entire app windoow

347

341

348

--local startX, startY = self:pixelToMap(-x, -y)

349

--local endX, endY = self:pixelToMap(the.app.width - x, the.app.height - y)

350

local startX, startY = 1, 1

351

local endX, endY = self:getMapSize()

352

353

-- if using spritebatches, check if anything has changed

354

-- TODO: encapsulate this check?

355

if startX ~= self.prevStartX or

356

startY ~= self.prevStartY or

357

endX ~= self.prevEndX or

358

endY ~= self.prevEndY then

359

360

--print('building sprite batch')

361

362

self.prevStartX, self.prevStartY = startX, startY

363

self.prevEndX, self.prevEndY = endX, endY

364

365

for k, batch in pairs(self.spriteBatches) do

366

--batch:bind()

367

batch:clear()

368

end

369

370

-- queue each sprite drawing operation

371

372

local toDraw = {}

373

374

for drawY = startY, endY do

375

for drawX = startX, endX do

376

local sprite = self.sprites[self.map[drawX][drawY]]

377

378

if sprite and sprite.visible then

379

if not toDraw[sprite] then

380

toDraw[sprite] = {}

381

end

382

383

table.insert(toDraw[sprite], { (drawX - 1) * self.spriteWidth,

384

(drawY - 1) * self.spriteHeight })

342

local startX, startY = self:pixelToMap(-x, -y)

343

local endX, endY = self:pixelToMap(the.app.width - x, the.app.height - y)

344

345

-- queue each sprite drawing operation

346

347

local toDraw = {}

348

349

for drawY = startY, endY do

350

for drawX = startX, endX do

351

local sprite = self.sprites[self.map[drawX][drawY]]

352

353

if sprite and sprite.visible then

354

if not toDraw[sprite] then

355

toDraw[sprite] = {}

385

356

end

386

end

387

end

388

389

-- draw each sprite in turn

390

391

for sprite, list in pairs(toDraw) do

392

for _, coords in pairs(list) do

393

sprite:draw(coords[1], coords[2], self)

357

358

table.insert(toDraw[sprite], { x + (drawX - 1) * self.spriteWidth,

359

y + (drawY - 1) * self.spriteHeight })

394

360

end

395

361

end

396

362

end

397

398

for _, batch in pairs(self.spriteBatches) do

399

--batch:unbind()

400

love.graphics.draw(batch, x, y)

363

364

-- draw each sprite in turn

365

366

for sprite, list in pairs(toDraw) do

367

for _, coords in pairs(list) do

368

sprite:draw(coords[1], coords[2])

369

end

401

370

end

402

371

end,

403

372

Older »