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/*******************************************************************************************
*
* raylib [textures] example - N-patch drawing
*
* NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
*
* This example has been created using raylib 2.0 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
* Example contributed by Jorge A. Gomes (@overdev) and reviewed by Ramon Santamaria (@raysan5)
*
* Copyright (c) 2018 Jorge A. Gomes (@overdev) and Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#if defined(PLATFORM_WEB)
#include <emscripten/emscripten.h>
#endif
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
int screenWidth = 800;
int screenHeight = 450;
// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
Texture2D nPatchTexture;
Vector2 mousePosition = { 0 };
Vector2 origin = { 0.0f, 0.0f };
// Position and size of the n-patches
Rectangle dstRec1 = { 480.0f, 160.0f, 32.0f, 32.0f };
Rectangle dstRec2 = { 160.0f, 160.0f, 32.0f, 32.0f };
Rectangle dstRecH = { 160.0f, 93.0f, 32.0f, 32.0f };
Rectangle dstRecV = { 92.0f, 160.0f, 32.0f, 32.0f };
// A 9-patch (NPT_9PATCH) changes its sizes in both axis
NPatchInfo ninePatchInfo1 = { (Rectangle){ 0.0f, 0.0f, 64.0f, 64.0f }, 12, 40, 12, 12, NPT_9PATCH };
NPatchInfo ninePatchInfo2 = { (Rectangle){ 0.0f, 128.0f, 64.0f, 64.0f }, 16, 16, 16, 16, NPT_9PATCH };
// A horizontal 3-patch (NPT_3PATCH_HORIZONTAL) changes its sizes along the x axis only
NPatchInfo h3PatchInfo = { (Rectangle){ 0.0f, 64.0f, 64.0f, 64.0f }, 8, 8, 8, 8, NPT_3PATCH_HORIZONTAL };
// A vertical 3-patch (NPT_3PATCH_VERTICAL) changes its sizes along the y axis only
NPatchInfo v3PatchInfo = { (Rectangle){ 0.0f, 192.0f, 64.0f, 64.0f }, 6, 6, 6, 6, NPT_3PATCH_VERTICAL };
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void); // Update and Draw one frame
//----------------------------------------------------------------------------------
// Main Enry Point
//----------------------------------------------------------------------------------
int main()
{
// Initialization
//--------------------------------------------------------------------------------------
InitWindow(screenWidth, screenHeight, "raylib [textures] example - N-patch drawing");
// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
nPatchTexture = LoadTexture("resources/ninepatch_button.png");
#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(nPatchTexture); // Texture unloading
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void)
{
// Update
//----------------------------------------------------------------------------------
mousePosition = GetMousePosition();
// Resize the n-patches based on mouse position
dstRec1.width = mousePosition.x - dstRec1.x;
dstRec1.height = mousePosition.y - dstRec1.y;
dstRec2.width = mousePosition.x - dstRec2.x;
dstRec2.height = mousePosition.y - dstRec2.y;
dstRecH.width = mousePosition.x - dstRecH.x;
dstRecV.height = mousePosition.y - dstRecV.y;
// Set a minimum width and/or height
if (dstRec1.width < 1.0f) dstRec1.width = 1.0f;
if (dstRec1.width > 300.0f) dstRec1.width = 300.0f;
if (dstRec1.height < 1.0f) dstRec1.height = 1.0f;
if (dstRec2.width < 1.0f) dstRec2.width = 1.0f;
if (dstRec2.width > 300.0f) dstRec2.width = 300.0f;
if (dstRec2.height < 1.0f) dstRec2.height = 1.0f;
if (dstRecH.width < 1.0f) dstRecH.width = 1.0f;
if (dstRecV.height < 1.0f) dstRecV.height = 1.0f;
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
// Draw the n-patches
DrawTextureNPatch(nPatchTexture, ninePatchInfo2, dstRec2, origin, 0.0f, WHITE);
DrawTextureNPatch(nPatchTexture, ninePatchInfo1, dstRec1, origin, 0.0f, WHITE);
DrawTextureNPatch(nPatchTexture, h3PatchInfo, dstRecH, origin, 0.0f, WHITE);
DrawTextureNPatch(nPatchTexture, v3PatchInfo, dstRecV, origin, 0.0f, WHITE);
// Draw the source texture
DrawRectangleLines(5, 88, 74, 266, BLUE);
DrawTexture(nPatchTexture, 10, 93, WHITE);
DrawText("TEXTURE", 15, 360, 10, DARKGRAY);
DrawText("Move the mouse to stretch or shrink the n-patches", 10, 20, 20, DARKGRAY);
EndDrawing();
//----------------------------------------------------------------------------------
}
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