72 lines
2.8 KiB
C
72 lines
2.8 KiB
C
/*******************************************************************************************
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*
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* raylib [core] example - Scissor test
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*
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* This example has been created using raylib 2.5 (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 Chris Dill (@MysteriousSpace) and reviewed by Ramon Santamaria (@raysan5)
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*
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* Copyright (c) 2019 Chris Dill (@MysteriousSpace)
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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 [core] example - scissor test");
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Rectangle scissorArea = { 0, 0, 300, 300 };
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bool scissorMode = true;
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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 (!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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if (IsKeyPressed(KEY_S)) scissorMode = !scissorMode;
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// Centre the scissor area around the mouse position
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scissorArea.x = GetMouseX() - scissorArea.width/2;
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scissorArea.y = GetMouseY() - scissorArea.height/2;
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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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if (scissorMode) BeginScissorMode((int)scissorArea.x, (int)scissorArea.y, (int)scissorArea.width, (int)scissorArea.height);
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// Draw full screen rectangle and some text
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// NOTE: Only part defined by scissor area will be rendered
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DrawRectangle(0, 0, GetScreenWidth(), GetScreenHeight(), RED);
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DrawText("Move the mouse around to reveal this text!", 190, 200, 20, LIGHTGRAY);
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if (scissorMode) EndScissorMode();
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DrawRectangleLinesEx(scissorArea, 1, BLACK);
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DrawText("Press S to toggle scissor test", 10, 10, 20, BLACK);
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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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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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}
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