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66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
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#include <raylib.h>
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#include "WindowManager.h"
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WindowManager::WindowManager( char* title, float screen_width, float screen_height ) {
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_title = title;
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_screenWidth = screen_width;
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_screenHeight = screen_height;
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_aspectRatio = (double)screen_width / screen_height;
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InitWindow(_screenWidth, _screenHeight, _title);
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Screen = LoadRenderTexture(_screenWidth, _screenHeight);
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ScaledScreen = LoadRenderTexture(_screenWidth, _screenHeight);
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_scaledHeight = screen_height;
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_scaledWidth = screen_width;
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}
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void WindowManager::UpdateScale() {
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// Changed
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bool hasChanged = (_screenWidth != GetScreenWidth()) || (_screenHeight != GetScreenHeight());
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if ( hasChanged ) {
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// Update Scaled Size
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int width = GetScreenWidth();
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int height = GetScreenHeight();
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double aspectRatio = (double)width / height;
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int newWidth = 0;
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int newHeight = 0;
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if (aspectRatio > _aspectRatio) {
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_scaledWidth = height * _aspectRatio;
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_scaledHeight = height;
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} else {
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_scaledWidth = width;
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_scaledHeight = width / _aspectRatio;
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}
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// Update Texture Size
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ScaledScreen = LoadRenderTexture(_scaledWidth, _scaledHeight);
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}
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}
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void WindowManager::Display () {
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BeginTextureMode(ScaledScreen);
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DrawTexturePro(Screen.texture, { 0, 0, static_cast<float>(_screenWidth), -static_cast<float>(_screenHeight) }, { 0, 0, static_cast<float>(ScaledScreen.texture.width), static_cast<float>(ScaledScreen.texture.height) }, { 0, 0 }, 0.0f, WHITE);
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EndTextureMode();
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float xStart = -(GetScreenWidth() - _scaledWidth) / 2;
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float yStart = -(GetScreenHeight() - _scaledHeight) / 2;
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BeginDrawing();
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ClearBackground(BLACK);
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DrawTexturePro(Screen.texture, { 0, 0, static_cast<float>(_screenWidth), -static_cast<float>(_screenHeight) }, { 0, 0, static_cast<float>(ScaledScreen.texture.width), static_cast<float>(ScaledScreen.texture.height) }, { xStart, yStart }, 0.0f, WHITE);
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EndDrawing();
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} |