diff options
Diffstat (limited to 'examples/heightmap')
| -rw-r--r-- | examples/heightmap/main.lua | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/examples/heightmap/main.lua b/examples/heightmap/main.lua new file mode 100644 index 0000000..ea594b2 --- /dev/null +++ b/examples/heightmap/main.lua @@ -0,0 +1,80 @@ +local TILE_SIZE = 32 + +local monitor = 0 +local camera = -1 +local groundTexture = -1 +local tilesetTex = -1 +local heigthImage = -1 +local mesh = -1 +local material = -1 + +local grassRec = { 6 * TILE_SIZE, 0 * TILE_SIZE, TILE_SIZE, TILE_SIZE } +local dirtRec = { 4 * TILE_SIZE, 0 * TILE_SIZE, TILE_SIZE, TILE_SIZE } +local dirtRightRec = { 5 * TILE_SIZE, 0 * TILE_SIZE, TILE_SIZE, TILE_SIZE } +local dirtLeftRec = { 5 * TILE_SIZE, 2 * TILE_SIZE, TILE_SIZE, TILE_SIZE } +local dirtTopRec = { 6 * TILE_SIZE, 1 * TILE_SIZE, TILE_SIZE, TILE_SIZE } +local dirtBottomRec = { 7 * TILE_SIZE, 0 * TILE_SIZE, TILE_SIZE, TILE_SIZE } + +local matrix = {} + +function init() + local mPos = RL_GetMonitorPosition( monitor ) + local mSize = RL_GetMonitorSize( monitor ) + local winSize = RL_GetWindowSize() + + RL_SetWindowState( FLAG_WINDOW_RESIZABLE ) + RL_SetWindowPosition( { mPos[1] + mSize[1] / 2 - winSize[1] / 2, mPos[2] + mSize[2] / 2 - winSize[2] / 2 } ) + + camera = RL_CreateCamera3D() + RL_SetCamera3DPosition( camera, { 0, 2, 4 } ) + RL_SetCamera3DTarget( camera, { 0, 0, 0 } ) + RL_SetCamera3DUp( camera, { 0, 2, 0 } ) + RL_SetCamera3DMode( camera, CAMERA_FREE ) + + heigthImage = RL_LoadImage( RL_GetBasePath().."../resources/images/heightmap.png" ) + + mesh = RL_GenMeshHeightmap( heigthImage, { 16, 4, 16 } ) + tilesetTex = RL_LoadTexture( RL_GetBasePath().."../resources/images/tiles.png" ) + groundTexture = RL_LoadRenderTexture( { TILE_SIZE * 16, TILE_SIZE * 16 } ) + + -- Draw to ground texture. + RL_BeginTextureMode( groundTexture ) + + for x = 1, 16 do + for y = 1, 16 do + local pos = { x - 1, y - 1 } + + if 4 < x and x < 14 and 4 < y and y < 8 then + RL_DrawTextureRec( tilesetTex, dirtRec, { pos[1] * TILE_SIZE, pos[2] * TILE_SIZE }, WHITE ) + elseif 4 == x and 4 < y and y < 8 then + RL_DrawTextureRec( tilesetTex, dirtRightRec, { pos[1] * TILE_SIZE, pos[2] * TILE_SIZE }, WHITE ) + elseif 14 == x and 4 < y and y < 8 then + RL_DrawTextureRec( tilesetTex, dirtLeftRec, { pos[1] * TILE_SIZE, pos[2] * TILE_SIZE }, WHITE ) + elseif 4 < x and x < 14 and 4 == y then + RL_DrawTextureRec( tilesetTex, dirtTopRec, { pos[1] * TILE_SIZE, pos[2] * TILE_SIZE }, WHITE ) + elseif 4 < x and x < 14 and 8 == y then + RL_DrawTextureRec( tilesetTex, dirtBottomRec, { pos[1] * TILE_SIZE, pos[2] * TILE_SIZE }, WHITE ) + else + RL_DrawTextureRec( tilesetTex, grassRec, { pos[1] * TILE_SIZE, pos[2] * TILE_SIZE }, WHITE ) + end + end + end + + RL_EndTextureMode() + + material = RL_LoadMaterialDefault() + RL_SetTextureSource( TEXTURE_SOURCE_RENDER_TEXTURE ) + RL_SetMaterialTexture( material, MATERIAL_MAP_ALBEDO, groundTexture ) + RL_SetTextureSource( TEXTURE_SOURCE_TEXTURE ) + + matrix = RL_MatrixMultiply( RL_MatrixIdentity(), RL_MatrixTranslate( { -4, 0, -4 } ) ) +end + +function draw() + RL_ClearBackground( { 100, 150, 100 } ) + RL_UpdateCamera3D( camera ) + + RL_BeginMode3D( camera ) + RL_DrawMesh( mesh, material, matrix ) + RL_EndMode3D() +end |