Add main menu

game/main.c

@@ -1,4 +1,5 @@
 #include <rlImGui.h>
+#include <raygui.h>
 
 #include "systems.h"
 #include "components.h"
@@ -8,6 +9,7 @@
 #include "map_init.h"
 #include "map_layers.h"
 #include "buildings.h"
+#include "ui_widgets.h"
 #include "unit_ai.h"
 #include "unit_actions.h"
 
@@ -19,6 +21,7 @@
 ECS_COMPONENT_DECLARE(Game);
 ECS_COMPONENT_DECLARE(InputState);
 
+BzUI *UI = NULL;
 ecs_world_t *ECS = NULL;
 
 static ecs_entity_t renderCollidersSystem;
@@ -45,6 +48,9 @@ bool bzMain(BzAppDesc *appDesc, int argc, const char **argv) {
     appDesc->imguiRender = (BzAppRenderFunc) imguiRender;
 
     appDesc->userData = NULL;
+
+    //SetConfigFlags(FLAG_WINDOW_RESIZABLE);
+
     return true;
 }
 
@@ -82,6 +88,8 @@ bool init(void *userData) {
     BZ_UNUSED(userData);
     SetExitKey(0);
 
+    UI = bzUICreate();
+
     ECS = ecs_init();
 
     initComponentIDs(ECS);
@@ -93,6 +101,7 @@ bool init(void *userData) {
     ECS_COMPONENT_DEFINE(ECS, Game);
     ecs_singleton_set(ECS, Game, {});
     Game *game = ecs_singleton_get_mut(ECS, Game);
+    game->screen = SCREEN_MAIN_MENU;
 
     ECS_COMPONENT_DEFINE(ECS, InputState);
     ecs_singleton_set(ECS, InputState, {});
@@ -225,6 +234,9 @@ void deinit(void *userData) {
     bzObjectPoolDestroy(gameCopy.pools.pathData);
     bzObjectPoolDestroy(gameCopy.pools.actions);
     bzSpatialGridDestroy(gameCopy.entityGrid);
+
+    bzUIDestroy(UI);
+    UI = NULL;
 }
 
 
@@ -243,32 +255,92 @@ void update(float dt, void *userData) {
 
     updateInputState(input, game->camera, dt);
 
-    updatePlayerInput();
+    switch (game->screen) {
+        case SCREEN_MAIN_MENU:
+            break;
+        case SCREEN_GAME:
+            updatePlayerInput();
+            break;
+    }
+}
+
+static void renderMainMenu(Game *game, float dt) {
+    i32 width = GetScreenWidth();
+    i32 height = GetScreenHeight();
+
+    ClearBackground(RAYWHITE);
+
+    bzUIBegin(UI, width, height);
+    bzUISetParentLayout(UI, (BzUILayout) {
+        .type = BZ_UI_LAYOUT_FLEX_BOX,
+        .flags = BZ_UI_FLEX_DIR_COLUMN
+    });
+
+    uiPushDivParentPercentage(1.0f, 0.4f);
+    bzUISetParentLayout(UI, (BzUILayout) {
+        .type = BZ_UI_LAYOUT_FLEX_BOX,
+        .flags = BZ_UI_FLEX_DIR_COLUMN | BZ_UI_FLEX_JUSTIFY_CENTER | BZ_UI_FLEX_ALIGN_CENTER
+    });
+    uiLargeLabel("PixelDefense");
+    bzUIPopParent(UI);
+
+    uiPushDivParentPercentage(1.0f, 0.6f);
+    bzUISetParentLayout(UI, (BzUILayout) {
+        .type = BZ_UI_LAYOUT_FLEX_BOX,
+        .flags = BZ_UI_FLEX_DIR_COLUMN | BZ_UI_FLEX_ALIGN_CENTER
+    });
+    if (uiLargeTextButton("Play")) {
+        bzLogInfo("Play");
+    }
+    if (uiLargeTextButton("Settings")) {
+        bzLogInfo("Settings");
+    }
+    if (uiLargeTextButton("Exit")) {
+        bzLogInfo("Bye");
+        bzGameExit();
+    }
+    bzUIPopParent(UI);
+    bzUIEnd(UI);
+
+}
+
+static void renderSettings(Game *game, float dt) {
 }
 
 void render(float dt, void *userData) {
     BZ_UNUSED(userData);
     Game *game = ecs_singleton_get_mut(ECS, Game);
-    InputState *input = ecs_singleton_get_mut(ECS, InputState);
 
-    ClearBackground(RAYWHITE);
-    BeginMode2D(game->camera);
+    switch (game->screen) {
+        case SCREEN_MAIN_MENU:
+            renderMainMenu(game, dt);
+            break;
+        case SCREEN_SETTINGS:
+            renderSettings(game, dt);
+            break;
+        case SCREEN_GAME:
+            ClearBackground(RAYWHITE);
+            BeginMode2D(game->camera);
 
-    bzTileMapDraw(&game->map);
+            bzTileMapDraw(&game->map);
 
-    drawPlayerInputUIGround();
+            drawPlayerInputUIGround();
 
-    ecs_progress(ECS, dt);
-    ecs_enable(ECS, renderDebugPathSystem, game->debugDraw.path);
-    ecs_enable(ECS, renderCollidersSystem, game->debugDraw.entityColliders);
-    if (game->debugDraw.mapColliders)
-        bzTileMapDrawCollisions(&game->map);
-    if (game->debugDraw.spatialGrid)
-        bzSpatialGridDrawDebugGrid(game->entityGrid);
+            ecs_progress(ECS, dt);
+            ecs_enable(ECS, renderDebugPathSystem, game->debugDraw.path);
+            ecs_enable(ECS, renderCollidersSystem, game->debugDraw.entityColliders);
+            if (game->debugDraw.mapColliders)
+                bzTileMapDrawCollisions(&game->map);
+            if (game->debugDraw.spatialGrid)
+                bzSpatialGridDrawDebugGrid(game->entityGrid);
+
+            drawPlayerInputUI();
+
+            EndMode2D();
+            break;
+    }
 
-    drawPlayerInputUI();
 
-    EndMode2D();
 }
 
 void imguiRender(float dt, void *userData) {
@@ -276,6 +348,8 @@ void imguiRender(float dt, void *userData) {
     Game *game = ecs_singleton_get_mut(ECS, Game);
     InputState *input = ecs_singleton_get_mut(ECS, InputState);
 
+    if (game->screen != SCREEN_GAME) return;
+
     igSetNextWindowSize((ImVec2){300, 400}, ImGuiCond_FirstUseEver);
     igBegin("Debug Menu", NULL, 0);
     if (igSmallButton("Recruit worker [50 food]")) {