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[example] Integrate virtual mouse in main example

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raysan5
2020-03-28 18:36:30 +01:00
parent e333eb415b
commit a5e1aff99b
3 changed files with 23 additions and 114 deletions
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24
examples/core/core_window_letterbox.c
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@ -1,6 +1,6 @@
/*******************************************************************************************
*
* raylib [core] example - window scale letterbox
* raylib [core] example - window scale letterbox (and virtual mouse)
*
* This example has been created using raylib 2.5 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
@ -16,6 +16,18 @@
#define max(a, b) ((a)>(b)? (a) : (b))
#define min(a, b) ((a)<(b)? (a) : (b))
// Clamp Vector2 value with min and max and return a new vector2
// NOTE: Required for virtual mouse, to clamp inside virtual game size
Vector2 ClampValue(Vector2 value, Vector2 min, Vector2 max)
{
Vector2 result = value;
result.x = (result.x > max.x)? max.x : result.x;
result.x = (result.x < min.x)? min.x : result.x;
result.y = (result.y > max.y)? max.y : result.y;
result.y = (result.y < min.y)? min.y : result.y;
return result;
}
int main(void)
{
const int windowWidth = 800;
@ -52,6 +64,13 @@ int main(void)
// Recalculate random colors for the bars
for (int i = 0; i < 10; i++) colors[i] = (Color){ GetRandomValue(100, 250), GetRandomValue(50, 150), GetRandomValue(10, 100), 255 };
}
// Update virtual mouse (clamped mouse value behind game screen)
Vector2 mouse = GetMousePosition();
Vector2 virtualMouse = { 0 };
virtualMouse.x = (mouse.x - (GetScreenWidth() - (gameScreenWidth*scale))*0.5f)/scale;
virtualMouse.y = (mouse.y - (GetScreenHeight() - (gameScreenHeight*scale))*0.5f)/scale;
virtualMouse = ClampValue(virtualMouse, (Vector2){ 0, 0 }, (Vector2){ gameScreenWidth, gameScreenHeight });
//----------------------------------------------------------------------------------
// Draw
@ -67,6 +86,9 @@ int main(void)
for (int i = 0; i < 10; i++) DrawRectangle(0, (gameScreenHeight/10)*i, gameScreenWidth, gameScreenHeight/10, colors[i]);
DrawText("If executed inside a window,\nyou can resize the window,\nand see the screen scaling!", 10, 25, 20, WHITE);
DrawText(TextFormat("Default Mouse: [%i , %i]", (int)mouse.x, (int)mouse.y), 350, 25, 20, GREEN);
DrawText(TextFormat("Virtual Mouse: [%i , %i]", (int)virtualMouse.x, (int)virtualMouse.y), 350, 55, 20, YELLOW);
EndTextureMode();