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109 строки
4.8 KiB
109 строки
4.8 KiB
/*******************************************************************************************
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*
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* raylib [textures] example - N-patch drawing
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*
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* NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
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*
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* This example has been created using raylib 2.0 (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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* Example contributed by Jorge A. Gomes (@overdev) and reviewed by Ramon Santamaria (@raysan5)
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*
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* Copyright (c) 2018 Jorge A. Gomes (@overdev) and Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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int main(void)
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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const int screenWidth = 800;
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const int screenHeight = 450;
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InitWindow(screenWidth, screenHeight, "raylib [textures] example - N-patch drawing");
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// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
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Texture2D nPatchTexture = LoadTexture("resources/ninepatch_button.png");
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Vector2 mousePosition = { 0 };
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Vector2 origin = { 0.0f, 0.0f };
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// Position and size of the n-patches
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Rectangle dstRec1 = { 480.0f, 160.0f, 32.0f, 32.0f };
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Rectangle dstRec2 = { 160.0f, 160.0f, 32.0f, 32.0f };
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Rectangle dstRecH = { 160.0f, 93.0f, 32.0f, 32.0f };
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Rectangle dstRecV = { 92.0f, 160.0f, 32.0f, 32.0f };
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// A 9-patch (NPT_9PATCH) changes its sizes in both axis
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NPatchInfo ninePatchInfo1 = { (Rectangle){ 0.0f, 0.0f, 64.0f, 64.0f }, 12, 40, 12, 12, NPT_9PATCH };
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NPatchInfo ninePatchInfo2 = { (Rectangle){ 0.0f, 128.0f, 64.0f, 64.0f }, 16, 16, 16, 16, NPT_9PATCH };
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// A horizontal 3-patch (NPT_3PATCH_HORIZONTAL) changes its sizes along the x axis only
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NPatchInfo h3PatchInfo = { (Rectangle){ 0.0f, 64.0f, 64.0f, 64.0f }, 8, 8, 8, 8, NPT_3PATCH_HORIZONTAL };
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// A vertical 3-patch (NPT_3PATCH_VERTICAL) changes its sizes along the y axis only
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NPatchInfo v3PatchInfo = { (Rectangle){ 0.0f, 192.0f, 64.0f, 64.0f }, 6, 6, 6, 6, NPT_3PATCH_VERTICAL };
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SetTargetFPS(60);
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//---------------------------------------------------------------------------------------
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// Main game loop
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while (!WindowShouldClose()) // Detect window close button or ESC key
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{
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// Update
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//----------------------------------------------------------------------------------
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mousePosition = GetMousePosition();
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// Resize the n-patches based on mouse position
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dstRec1.width = mousePosition.x - dstRec1.x;
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dstRec1.height = mousePosition.y - dstRec1.y;
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dstRec2.width = mousePosition.x - dstRec2.x;
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dstRec2.height = mousePosition.y - dstRec2.y;
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dstRecH.width = mousePosition.x - dstRecH.x;
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dstRecV.height = mousePosition.y - dstRecV.y;
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// Set a minimum width and/or height
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if (dstRec1.width < 1.0f) dstRec1.width = 1.0f;
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if (dstRec1.width > 300.0f) dstRec1.width = 300.0f;
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if (dstRec1.height < 1.0f) dstRec1.height = 1.0f;
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if (dstRec2.width < 1.0f) dstRec2.width = 1.0f;
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if (dstRec2.width > 300.0f) dstRec2.width = 300.0f;
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if (dstRec2.height < 1.0f) dstRec2.height = 1.0f;
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if (dstRecH.width < 1.0f) dstRecH.width = 1.0f;
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if (dstRecV.height < 1.0f) dstRecV.height = 1.0f;
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(RAYWHITE);
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// Draw the n-patches
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DrawTextureNPatch(nPatchTexture, ninePatchInfo2, dstRec2, origin, 0.0f, WHITE);
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DrawTextureNPatch(nPatchTexture, ninePatchInfo1, dstRec1, origin, 0.0f, WHITE);
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DrawTextureNPatch(nPatchTexture, h3PatchInfo, dstRecH, origin, 0.0f, WHITE);
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DrawTextureNPatch(nPatchTexture, v3PatchInfo, dstRecV, origin, 0.0f, WHITE);
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// Draw the source texture
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DrawRectangleLines(5, 88, 74, 266, BLUE);
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DrawTexture(nPatchTexture, 10, 93, WHITE);
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DrawText("TEXTURE", 15, 360, 10, DARKGRAY);
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DrawText("Move the mouse to stretch or shrink the n-patches", 10, 20, 20, DARKGRAY);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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// De-Initialization
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//--------------------------------------------------------------------------------------
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UnloadTexture(nPatchTexture); // Texture unloading
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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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}
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