UI core boiler plate

game/ui_widgets.h

@@ -0,0 +1,49 @@
+#ifndef PIXELDEFENSE_UI_H
+#define PIXELDEFENSE_UI_H
+
+#include <breeze.h>
+#include <raygui.h>
+
+typedef struct UIGrid {
+    i32 rows;
+    i32 cols;
+    f32 rowPadding;
+    f32 cellPadding;
+    Rectangle bounds;
+} UIGrid;
+
+UIGrid uiGridFromRoot(i32 width, i32 height);
+UIGrid uiGridFromGrid(const UIGrid grid, i32 row, i32 col);
+UIGrid uiGridFromGridSpan(const UIGrid grid, i32 row, i32 col, i32 rowSpan, i32 colSpan);
+
+Rectangle uiGridCell(const UIGrid grid, i32 row, i32 col);
+Rectangle uiGridCellSpan(const UIGrid grid, i32 row, i32 col, i32 rowSpan, i32 colSpan);
+
+void uiGridDrawCells(const UIGrid grid);
+
+typedef enum UIFlexBoxFlag {
+    UI_FLEX_NONE                  = 0,
+    UI_FLEX_DIR_ROW               = 0b1,
+    UI_FLEX_DIR_COLUMN            = 0b10,
+    UI_FLEX_ALIGN_START           = 0b100,
+    UI_FLEX_ALIGN_CENTER          = 0b1000,
+    UI_FLEX_ALIGN_END             = 0b10000,
+    UI_FLEX_JUSTIFY_START         = 0b100000,
+    UI_FLEX_JUSTIFY_CENTER        = 0b1000000,
+    UI_FLEX_JUSTIFY_END           = 0b10000000,
+} UIFlexBoxFlag;
+
+typedef struct FlexBoxDesc {
+    Rectangle window;
+    UIFlexBoxFlag flags;
+    f32 padding;
+} FlexBoxDesc;
+
+void uiFlexBoxCalc(const FlexBoxDesc *desc, i32 numElements, ...);
+
+static f32 uiScale() {
+    return GetScreenHeight() / 720.0f;
+}
+
+
+#endif //PIXELDEFENSE_UI_H