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/*******************************************************************************************
*
* raylib [texture] example - Image text drawing using TTF generated spritefont
*
* This example has been created using raylib 1.8 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
* Copyright (c) 2017 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#if defined(PLATFORM_WEB)
#include <emscripten/emscripten.h>
#endif
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
Font font = { 0 };
Texture2D texture = { 0 };
Vector2 position = { 0.0f, 0.0f };
bool showFont = false;
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void); // Update and Draw one frame
//----------------------------------------------------------------------------------
// Program Main Entry Point
//----------------------------------------------------------------------------------
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
InitWindow(screenWidth, screenHeight, "raylib [texture] example - image text drawing");
// TTF Font loading with custom generation parameters
font = LoadFontEx("resources/KAISG.ttf", 64, 0, 0);
Image parrots = LoadImage("resources/parrots.png"); // Load image in CPU memory (RAM)
// Draw over image using custom font
ImageDrawTextEx(&parrots, (Vector2){ 20.0f, 20.0f }, font, "[Parrots font drawing]", (float)font.baseSize, 0.0f, RED);
texture = LoadTextureFromImage(parrots); // Image converted to texture, uploaded to GPU memory (VRAM)
UnloadImage(parrots); // Once image has been converted to texture and uploaded to VRAM, it can be unloaded from RAM
position = (Vector2){ (float)(screenWidth/2 - texture.width/2), (float)(screenHeight/2 - texture.height/2 - 20) };
#if defined(PLATFORM_WEB)
emscripten_set_main_loop(UpdateDrawFrame, 0, 1);
#else
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
UpdateDrawFrame();
}
#endif
// De-Initialization
//--------------------------------------------------------------------------------------
UnloadTexture(texture); // Texture unloading
UnloadFont(font); // Unload custom spritefont
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void)
{
// Update
//----------------------------------------------------------------------------------
if (IsKeyDown(KEY_SPACE)) showFont = true;
else showFont = false;
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
if (!showFont)
{
// Draw texture with text already drawn inside
DrawTextureV(texture, position, WHITE);
// Draw text directly using sprite font
DrawTextEx(font, "[Parrots font drawing]", (Vector2){ position.x + 20,
position.y + 20 + 280 }, (float)font.baseSize, 0.0f, WHITE);
}
else DrawTexture(font.texture, screenWidth/2 - font.texture.width/2, 50, BLACK);
DrawText("PRESS SPACE to SEE USED SPRITEFONT ", 290, 420, 10, DARKGRAY);
EndDrawing();
//----------------------------------------------------------------------------------
}
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