113 lines
4.6 KiB
Python
113 lines
4.6 KiB
Python
# /*******************************************************************************************
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# *
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# * raylib [textures] example - Bunnymark
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# *
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# * This example has been created using raylib 1.6 (www.raylib.com)
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# * raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
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# *
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# * Copyright (c) 2014-2019 Ramon Santamaria (@raysan5)
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# *
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# ********************************************************************************************/
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from raylib.dynamic import ffi, raylib as rl
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from raylib.colors import *
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MAX_BUNNIES = 500000
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# This is the maximum amount of elements (quads) per batch
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# NOTE: This value is defined in [rlgl] module and can be changed there
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MAX_BATCH_ELEMENTS = 8192
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class Bunny:
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def __init__(self):
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self.position = ffi.new('struct Vector2 *', [0.0, 0.0])
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self.speed = ffi.new('struct Vector2 *', [0.0, 0.0])
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self.color = ffi.new('struct Color *', [0, 0, 0, 0])
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# // Initialization
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# //--------------------------------------------------------------------------------------
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screenWidth = 1920;
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screenHeight = 1080;
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rl.InitWindow(screenWidth, screenHeight, b"raylib [textures] example - bunnymark")
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# // Load bunny texture
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texBunny = rl.LoadTexture(b"resources/wabbit_alpha.png")
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bunnies = []
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for i in range(0, MAX_BUNNIES):
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bunnies.append(Bunny())
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bunniesCount = 0; # Bunnies counter
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rl.SetTargetFPS(60); # Set our game to run at 60 frames-per-second
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#//--------------------------------------------------------------------------------------
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#// Main game loop
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while not rl.WindowShouldClose(): #// Detect window close button or ESC key
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#// Update
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#//----------------------------------------------------------------------------------
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if rl.IsMouseButtonDown(rl.MOUSE_LEFT_BUTTON):
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#// Create more bunnies
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for i in range(0, 100):
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if bunniesCount < MAX_BUNNIES:
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bunnies[bunniesCount].position = rl.GetMousePosition()
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bunnies[bunniesCount].speed.x = rl.GetRandomValue(-250, 250)/60.0
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bunnies[bunniesCount].speed.y = rl.GetRandomValue(-250, 250)/60.0
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bunnies[bunniesCount].color = (rl.GetRandomValue(50, 240),
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rl.GetRandomValue(80, 240),
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rl.GetRandomValue(100, 240), 255 )
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bunniesCount+=1
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# // Update bunnies
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for i in range(0, bunniesCount):
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bunnies[i].position.x += bunnies[i].speed.x;
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bunnies[i].position.y += bunnies[i].speed.y;
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if ((bunnies[i].position.x + texBunny.width/2) > rl.GetScreenWidth()) or ((bunnies[i].position.x + texBunny.width/2) < 0):
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bunnies[i].speed.x *= -1
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if ((bunnies[i].position.y + texBunny.height/2) > rl.GetScreenHeight()) or ((bunnies[i].position.y + texBunny.height/2 - 40) < 0):
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bunnies[i].speed.y *= -1
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# //----------------------------------------------------------------------------------
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#
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# // Draw
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# //----------------------------------------------------------------------------------
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rl.BeginDrawing()
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rl.ClearBackground(RAYWHITE)
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for i in range(0, bunniesCount):
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# // NOTE: When internal batch buffer limit is reached (MAX_BATCH_ELEMENTS),
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# // a draw call is launched and buffer starts being filled again;
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# // before issuing a draw call, updated vertex data from internal CPU buffer is send to GPU...
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# // Process of sending data is costly and it could happen that GPU data has not been completely
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# // processed for drawing while new data is tried to be sent (updating current in-use buffers)
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# // it could generates a stall and consequently a frame drop, limiting the number of drawn bunnies
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rl.DrawTexture(texBunny, int(bunnies[i].position.x), int(bunnies[i].position.y), bunnies[i].color)
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rl.DrawRectangle(0, 0, screenWidth, 40, BLACK)
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text = f"bunnies {bunniesCount}"
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rl.DrawText(text.encode('utf-8'), 120, 10, 20, GREEN)
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text = f"batched draw calls: { 1 + int(bunniesCount/MAX_BATCH_ELEMENTS)}"
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rl.DrawText(text.encode('utf-8'), 320, 10, 20, MAROON)
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rl.DrawFPS(10, 10)
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rl.EndDrawing()
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#//----------------------------------------------------------------------------------
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#// De-Initialization
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#//--------------------------------------------------------------------------------------
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rl.UnloadTexture(texBunny); #Unload bunny texture
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rl.CloseWindow() # Close window and OpenGL context
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#//--------------------------------------------------------------------------------------
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