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Diffstat (limited to 'examples/dungeon_crawler/main.lua')
| -rw-r--r-- | examples/dungeon_crawler/main.lua | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/examples/dungeon_crawler/main.lua b/examples/dungeon_crawler/main.lua new file mode 100644 index 0000000..979b553 --- /dev/null +++ b/examples/dungeon_crawler/main.lua @@ -0,0 +1,147 @@ +local pos = { 2, 0.5, 6 } +local speed = 5.0 +local camera = -1 +local texture = -1 +local mesh = -1 +local textureSize = { 128, 128 } +local res = { 384, 216 } +local winSize = RL_GetWindowSize() +local winScale = 5 +local framebuffer = -1 + +local TILE_SIZE = 32 +local COLOR_WHITE = { 255, 255, 255 } + +local FLOOR = 1 +local CEILING = 2 +local WALL_N = 3 +local WALL_S = 4 +local WALL_W = 5 +local WALL_E = 6 + +local sprites = { + { pos = { 0.5, 0.5 }, tile = { 0, 1 }, dis = 0, size = 0.7 }, + { pos = { 3.5, 0.5 }, tile = { 0, 1 }, dis = 0, size = 0.7 }, +} + +local function getTexCoords( x, y ) + return { + { x * TILE_SIZE / textureSize[1], y * TILE_SIZE / textureSize[2] }, + { x * TILE_SIZE / textureSize[1], ( y * TILE_SIZE + TILE_SIZE ) / textureSize[2] }, + { ( x * TILE_SIZE + TILE_SIZE ) / textureSize[1], ( y * TILE_SIZE + TILE_SIZE ) / textureSize[2] }, + { ( x * TILE_SIZE + TILE_SIZE ) / textureSize[1], y * TILE_SIZE / textureSize[2] }, + } +end + +local function getTileVer( x, y, type ) + local types = { + { { 0, 0, 0 }, { 0, 0, 1 }, { 1, 0, 1 }, { 1, 0, 0 } }, -- Floor. + { { 1, 1, 0 }, { 1, 1, 1 }, { 0, 1, 1 }, { 0, 1, 0 } }, -- Ceiling. + { { 0, 1, 0 }, { 0, 0, 0 }, { 1, 0, 0 }, { 1, 1, 0 } }, -- Wall North. + { { 1, 1, 1 }, { 1, 0, 1 }, { 0, 0, 1 }, { 0, 1, 1 } }, -- Wall South. + { { 0, 1, 1 }, { 0, 0, 1 }, { 0, 0, 0 }, { 0, 1, 0 } }, -- Wall West. + { { 1, 1, 0 }, { 1, 0, 0 }, { 1, 0, 1 }, { 1, 1, 1 } }, -- Wall East. + } + local verts = types[ type ] + + for i = 1, 4 do + verts[i][1] = verts[i][1] + x + verts[i][3] = verts[i][3] + y + end + + return verts +end + +function drawSprites() + for _, sprite in ipairs( sprites ) do + sprite.dis = RL_Vector2Distance( { pos[1], pos[3] }, { sprite.pos[1], sprite.pos[2] } ) + end + + table.sort( sprites, function( a, b ) return a.dis > b.dis end ) + + for _, sprite in ipairs( sprites ) do + RL_DrawBillboardRec( camera, texture, { sprite.tile[1] * TILE_SIZE, sprite.tile[2] * TILE_SIZE, TILE_SIZE, TILE_SIZE }, + { sprite.pos[1], 0.5 * sprite.size, sprite.pos[2] }, { sprite.size, sprite.size }, COLOR_WHITE ) + end +end + +function init() + local monitor = 0 + local mPos = RL_GetMonitorPosition( monitor ) + local mSize = RL_GetMonitorSize( monitor ) + -- RL_SetWindowSize( { 1920, 1080 } ) + winSize = { res[1] * winScale, res[2] * winScale } + -- winSize = { 1920, 1080 } + RL_SetWindowSize( winSize ) + RL_SetExitKey( KEY_ESCAPE ) + -- framebuffer = RL_LoadRenderTexture( res ) + RL_SetWindowState( FLAG_WINDOW_RESIZABLE ) + RL_SetWindowPosition( { mPos[1] + mSize[1] / 2 - winSize[1] / 2, mPos[2] + mSize[2] / 2 - winSize[2] / 2 } ) + + texture = RL_LoadTexture( RL_GetBasePath().."../resources/images/tiles.png" ) + camera = RL_CreateCamera3D() + mesh = RL_GenMeshCube( { 1, 2, 1 } ) + RL_SetCamera3DPosition( camera, pos ) + RL_SetCamera3DTarget( camera, { 0, 0, 0 } ) + RL_SetCamera3DUp( camera, { 0, 1, 0 } ) + RL_SetCamera3DMode( camera, CAMERA_FIRST_PERSON ) + -- RL_SetCamera3DMode( camera, CAMERA_ORBITAL ) + + -- for x = 0, 3 do + -- for y = 0, 9 do + -- table.insert( sprites, { pos = { x + 0.5, y + 0.5 + 1 }, tile = { 1, 1 }, dis = 0, size = 0.8 } ) + -- end + -- end + table.insert( sprites, { pos = { 2.5, 2.5 }, tile = { 1, 1 }, dis = 0, size = 0.8 } ) + + -- for x = 0, 1 do + -- for y = 0, 1 do + -- table.insert( sprites, { pos = { 1.25 + x * 0.5, 2.25 + y * 0.5 }, tile = { 3, 0 }, dis = 0, size = 0.6 } ) + -- end + -- end + table.insert( sprites, { pos = { 1.5, 3.5 }, tile = { 3, 1 }, dis = 0, size = 0.5 } ) + table.insert( sprites, { pos = { 0.5, 3.5 }, tile = { 3, 0 }, dis = 0, size = 0.7 } ) +end + +function process( delta ) + -- RL_SetCamera3DPosition( camera, pos ) +end + +function draw() + RL_UpdateCamera3D( camera ) + pos = RL_GetCamera3DPosition( camera ) + + -- RL_BeginTextureMode( framebuffer ) + RL_ClearBackground( { 100, 150, 150 } ) + + RL_BeginMode3D( camera ) + + -- Floor and ceiling. + for x = 0, 3 do + for y = 0, 10 do + RL_DrawQuad3DTexture( texture, getTileVer( x, y, FLOOR ), getTexCoords( 1, 0 ), COLOR_WHITE ) + RL_DrawQuad3DTexture( texture, getTileVer( x, y, CEILING ), getTexCoords( 2, 0 ), COLOR_WHITE ) + end + end + -- Walls. + RL_DrawQuad3DTexture( texture, getTileVer( 0, 0, WALL_N ), getTexCoords( 0, 0 ), COLOR_WHITE ) + RL_DrawQuad3DTexture( texture, getTileVer( 1, 0, WALL_N ), getTexCoords( 0, 2 ), COLOR_WHITE ) + RL_DrawQuad3DTexture( texture, getTileVer( 2, 0, WALL_N ), getTexCoords( 2, 2 ), COLOR_WHITE ) + RL_DrawQuad3DTexture( texture, getTileVer( 3, 0, WALL_N ), getTexCoords( 0, 0 ), COLOR_WHITE ) + + for x = 0, 3 do + RL_DrawQuad3DTexture( texture, getTileVer( x, 10, WALL_S ), getTexCoords( 0, 0 ), COLOR_WHITE ) + end + for y = 0, 10 do + RL_DrawQuad3DTexture( texture, getTileVer( 0, y, WALL_W ), getTexCoords( 0, 0 ), COLOR_WHITE ) + RL_DrawQuad3DTexture( texture, getTileVer( 3, y, WALL_E ), getTexCoords( 0, 0 ), COLOR_WHITE ) + end + + drawSprites() + RL_EndMode3D() + -- RL_EndTextureMode() + + -- RL_SetTextureSource( TEXTURE_SOURCE_RENDER_TEXTURE ) + -- RL_DrawTexturePro( framebuffer, { 0, 0, res[1], -res[2] }, { 0, 0, winSize[1], winSize[2] }, { 0, 0 }, 0.0, COLOR_WHITE ) + -- RL_SetTextureSource( TEXTURE_SOURCE_TEXTURE ) +end |