From 8b8f3b7f06eb2ebca0a00cfb9e744ffddea5214c Mon Sep 17 00:00:00 2001
From: zvon <tom.zvon@gmail.com>
Date: Sun, 2 May 2021 14:28:17 +0200
Subject: [PATCH] Mario editor: switching between blocks

---
 mario/blocks.hpp |  2 ++
 mario/editor.cpp | 17 +++++++++++++++--
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/mario/blocks.hpp b/mario/blocks.hpp
index f363465..cb429e3 100644
--- a/mario/blocks.hpp
+++ b/mario/blocks.hpp
@@ -28,4 +28,6 @@ std::shared_ptr<SDLPP::RectangleRender> createTerrainBlock( uint64_t block_id, B
 std::shared_ptr<SDLPP::RectangleRender> createTerrainBlock( uint64_t block_id, BlockType type, std::shared_ptr<SDLPP::Renderer> &renderer, int x, int y, std::shared_ptr<SDLPP::Texture> texture, bool collision = false );
 std::shared_ptr<SDLPP::RectangleRender> createMario( BlockType type, std::shared_ptr<SDLPP::Renderer> &renderer, int x, int y );
 
+SDL_Rect getSourceRectByID( uint64_t id, BlockType type );
+
 #endif
diff --git a/mario/editor.cpp b/mario/editor.cpp
index 30369bb..2731f21 100644
--- a/mario/editor.cpp
+++ b/mario/editor.cpp
@@ -29,9 +29,12 @@ std::mutex destruction_mutex;
 
 int current_start_index = 0;
 int current_max_index = 0;
+uint64_t current_block = 0;
 SDLPP::Vec2D<int> current_box = {0, 0};
 std::shared_ptr<SDLPP::RenderObject> current_tool = nullptr;
 
+std::shared_ptr<SDLPP::Texture> g_placeholder_texture = nullptr;
+
 void handleKeyDown( SDL_Keycode key, SDLPP::Scene &scene ) {
     switch ( key ) {
     case SDLK_ESCAPE:
@@ -54,11 +57,21 @@ void handleKeyDown( SDL_Keycode key, SDLPP::Scene &scene ) {
     }
 }
 
+void updateTool() {
+    current_tool->setTexture(g_placeholder_texture, getSourceRectByID(possibleBlocks[current_block], OVERWORLD));
+    current_tool->setId(possibleBlocks[current_block]);
+    current_tool->getCollisions()[0]->setId(possibleBlocks[current_block]);
+}
+
 void handleKeyUp( SDL_Keycode key ) {
     switch ( key ) {
     case SDLK_a:
+        current_block = (current_block + possibleBlocks.size() - 1) % possibleBlocks.size();
+        updateTool();
         break;
     case SDLK_d:
+        current_block = (current_block + 1) % possibleBlocks.size();
+        updateTool();
         break;
     case SDLK_w:
     case SDLK_s:
@@ -243,9 +256,9 @@ int main() {
     scene->addObject( mouse );
     current_max_index = objects.size() - 18;
 
-    auto placeholder_texture = std::make_shared< SDLPP::Texture >(
+    g_placeholder_texture = std::make_shared< SDLPP::Texture >(
         renderer, "sprites/terrain.png", MARIO_OVERWORLD_COLORKEY );
-    current_tool = createTerrainBlock(FLOOR_ID, OVERWORLD, renderer, placeholder_texture, false);
+    current_tool = createTerrainBlock(possibleBlocks[current_block], OVERWORLD, renderer, g_placeholder_texture, false);
     current_tool->addCollision(SDLPP::RectColider(0.1, 0.1, 0.8, 0.8));
     current_tool->setTextureAlpha(100);
     dynamic_cast<MarioBlock&>(*current_tool).setTool();