Better usage of SDL2 implementation and working Makefile structure

.vscode/launch.json

@@ -0,0 +1,37 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "(gdb) Launch",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceRoot}/build/2D_Engine",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "${fileDirname}",
+            "environment": [
+                {
+                    "name": "LD_LIBRARY_PATH",
+                    "value": "${workspaceFolder}/build/"
+                }
+            ],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                },
+                {
+                    "description": "Set Disassembly Flavor to Intel",
+                    "text": "-gdb-set disassembly-flavor intel",
+                    "ignoreFailures": true
+                }
+            ]
+        }
+    ]
+}

.vscode/tasks.json

@@ -7,7 +7,7 @@
             "type": "shell",
             "command": "make",
             "args": [
-//                "-j$(nproc)"
+                "-j$(nproc)"
             ],
             "group": "build",
             "presentation": {

Makefile

@@ -3,9 +3,6 @@ SHELL = /bin/bash
 # Build folder
 BUILD_DIR = build
 
-# Core output target name
-CORE_OUTPUT := libCore.so
-
 # Source output target name
 SOURCE_OUTPUT := 2D_Engine
 
@@ -24,22 +21,18 @@ YELLOW := \033[33m
 RESET  := \033[m
 
 # Default targets
-#all: build_core build_src compress_assets end
+#all: build_core build_src compress_assets
 all: build_core build_src
 
 # Sub Makefiles
 SOURCE_DIR = src
-CORE_DIR = core
+CORE_DIR = core/src
 ASSETS_DIR = assets
 
 include $(CORE_DIR)/Makefile
 include $(SOURCE_DIR)/Makefile
 include $(ASSETS_DIR)/Makefile
 
-# Print ending message
-end:
-	@echo "Built target $(OUTPUT)"
-
 # Clean
 .PHONY: clean
 clean:
@@ -49,5 +42,5 @@ clean:
 # Run executable
 .PHONY: run
 run:
-	$(Q)./$(OUTPUT)
+	$(Q)LD_LIBRARY_PATH=$(shell pwd)/build/ ./$(BUILD_DIR)/$(SOURCE_OUTPUT)
 

core/README.md

@@ -0,0 +1,9 @@
+[![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)
+# 2D_Engine_C SDL2 Core
+
+## Description
+The core made on SDL2 for the multi-platform 2D_Engine_C.
+
+## Licences
+- This program is open-source : you can redistribute and/or modify it under the term of the **GNU GPLv3**.
+  Copyright (C) 2025 Ulysse Cura. See [LICENSE](LICENSE) or [gnu.org/licenses/gpl-3.0.html](https://www.gnu.org/licenses/gpl-3.0.html).

src/Makefile

@@ -2,7 +2,6 @@
 SOURCES := \
   main.c \
   game.c \
-  texture_manager.c \
   ecs/ecs.c \
   ecs/components/transform_component.c \
   ecs/components/sprite_component.c \
@@ -11,7 +10,7 @@ SOURCES := \
 
 # Compiler and flags
 SRC_CC = gcc
-SRC_CFLAGS = -Wall -Wextra -std=c17
+SRC_CFLAGS = -Wall -Wextra -std=c17 -g
 SRC_INCLUDE_DIRS = $(SOURCE_DIR)/headers $(SOURCE_DIR)/ecs/headers $(SOURCE_DIR)/ecs/components/headers $(CORE_DIR)/headers
 SRC_LDFLAGS =
 
@@ -22,7 +21,7 @@ SOURCE_OBJECTS = $(SOURCES:%.c=$(BUILD_DIR)/$(SOURCE_DIR)/%.o)
 CURRENT_SRC_FILE := 0
 
 # Build src target
-build_src: src_setup count_src_build $(BUILD_DIR)/$(SOURCE_OUTPUT)
+build_src: src_setup count_src_build $(BUILD_DIR)/$(SOURCE_OUTPUT) src_end
 
 # Source build directories and 
 src_setup:
@@ -34,9 +33,10 @@ count_src_build:
 	$(eval export TOTAL_SRC_FILES := $(shell echo $$(($$(make -n $(SOURCE_OBJECTS) 2>/dev/null | grep -c "Building") + 1))))
 
 # Link game target
-$(BUILD_DIR)/$(SOURCE_OUTPUT): $(SOURCE_OBJECTS)
+# The ignore unresolved symbols in shared libs is ugly but works if the core changes.
+$(BUILD_DIR)/$(SOURCE_OUTPUT): $(SOURCE_OBJECTS) $(BUILD_DIR)/libCore.so
 	@echo -e "[100%] $(YELLOW)Linking $(SOURCE_OUTPUT)$(RESET)"
-	$(Q)$(SRC_CC) $(SRC_LDFLAGS) -o $@ $(SOURCE_OBJECTS)
+	$(Q)$(SRC_CC) $(SRC_LDFLAGS) $(SOURCE_OBJECTS) -L./$(BUILD_DIR) -lCore -Wl,-unresolved-symbols=ignore-in-shared-libs -o $@
 
 # Build .o files
 $(BUILD_DIR)/$(SOURCE_DIR)/%.o: $(SOURCE_DIR)/%.c
@@ -45,5 +45,9 @@ $(BUILD_DIR)/$(SOURCE_DIR)/%.o: $(SOURCE_DIR)/%.c
 	@echo -e "[$(PERCENTAGE)%] $(GREEN)Building C object $@$(RESET)"
 	$(Q)$(SRC_CC) $(SRC_CFLAGS) $(SRC_INCLUDE_DIRS:%=-I%) -MMD -MP -c $< -o $@
 
+# Print ending message
+src_end: $(BUILD_DIR)/$(SOURCE_OUTPUT)
+	@echo "Built target $(SOURCE_OUTPUT)"
+
 # Source files dependencies
 -include $(SOURCE_OBJECTS:.o=.d)

src/ecs/components/headers/transform_component.h

@@ -5,8 +5,8 @@
 #include "vector2d.h"
 
 typedef struct transform_component_data_t {
-    rect_t bounds;
+    frect_t bounds;
-    vector2d_t velocity;
+    fvector2d_t velocity;
     float speed;
 } transform_component_data_t;
 

src/ecs/components/sprite_component.c

@@ -9,7 +9,7 @@ void sprite_component_init(component_t *component, va_list args)
 
     component_data->transform_component_data = get_component(component->entity, TRANSFORM_COMPONENT)->component_data.transform_component_data;
 
-    component_data->src_rect = component_data->transform_component_data->bounds;
+    frect_to_rect(&component_data->transform_component_data->bounds, &component_data->src_rect);
     component_data->src_rect.x = 0;
     component_data->src_rect.y = 0;
 
@@ -21,7 +21,7 @@ void sprite_component_init(component_t *component, va_list args)
 inline void sprite_component_update(component_t *component)
 {
     sprite_component_data_t *component_data = component->component_data.sprite_component_data;
-    component_data->dst_rect = component_data->transform_component_data->bounds;
+    frect_to_rect(&component_data->transform_component_data->bounds, &component_data->dst_rect);
 }
 
 inline void sprite_component_draw(component_t *component)

src/ecs/components/transform_component.c

@@ -2,20 +2,16 @@
 #include "transform_component.h"
 #include "game.h"
 
-// Args : rect_t bounds, double speed
+// Args : frect_t bounds, double speed
 void transform_component_init(component_t *component, va_list args)
 {
     transform_component_data_t *const component_data = component->component_data.transform_component_data;
 
-    rect_t bounds  = va_arg(args, rect_t);
+    component_data->bounds = va_arg(args, frect_t);
-    float speed = (float)va_arg(args, double);
+    component_data->speed = (float)va_arg(args, double);
 
-    component_data->bounds = bounds;
+    component_data->velocity.x = 0.0f;
-
+    component_data->velocity.y = 0.0f;
-    component_data->velocity.x = 0;
-    component_data->velocity.y = 0;
-
-    component_data->speed = speed;
 }
 
 void transform_component_update(component_t *component)

src/game.c

@@ -16,7 +16,7 @@ void game_init(void)
 
     entity_manager_add_entity(&game.entity_manager, player);
 
-    rect_t player_bounds = {10.0f, 10.0f, 32.0f, 32.0f};
+    frect_t player_bounds = {10.0f, 10.0f, 32.0f, 32.0f};
 
     add_component(player, create_component(TRANSFORM_COMPONENT), player_bounds, PLAYER_DEFAULT_SPEED);
     add_component(player, create_component(SPRITE_COMPONENT), "player_idle_sheet");
@@ -32,12 +32,12 @@ void game_handle_event(void)
 
     while(pollevent(&event))
     {
-        if(event.type == KEYEV_DOWN)
+        if(event.type == EVENT_KEY_DOWN)
             game.events.keys[event.key.keysym.scancode] = true;
-        else if(event.type == KEYEV_UP)
+        else if(event.type == EVENT_KEY_UP)
             game.events.keys[event.key.keysym.scancode] = false;
 
-        if(event.type == SDL_QUIT)
+        if(event.type == EVENT_QUIT)
             game.is_running = false;
     }
 }
@@ -46,7 +46,7 @@ static inline void update_time(void)
 {
     clock_t last_clock_state = clock();
     clock_t start_clock = clock();
-    game.delta_time_ms = (double)(start_clock - last_clock_state) * 1000.0f / CLOCKS_PER_SEC;
+    game.delta_time_ms = (float)(start_clock - last_clock_state) * 1000.0f / CLOCKS_PER_SEC;
     last_clock_state = start_clock;
 }
 

src/headers/game.h

@@ -21,7 +21,7 @@ typedef struct game_t {
     entity_manager_t entity_manager;
 
     bool is_running;
-    double delta_time_ms;
+    float delta_time_ms;
 } game_t;
 
 // Global game instance