Include C test program in repo

Makefile

@@ -1,16 +1,17 @@
-default: all
+default: test
 
 CC      := cc
 CFLAGS  := -g -Wall -fPIC
 LDFLAGS := -lm -shared
 
-SRC_DIRS  := src src/engine src/game src/mario src/tools
+SRC_DIRS  := src src/engine src/game src/mario src/tools test
 BUILD_DIR := build
 DIST_DIR  := dist
 ALL_DIRS  := $(addprefix $(BUILD_DIR)/,$(SRC_DIRS))
 
-BIN_FILE   := $(DIST_DIR)/libsm64.so
+LIB_FILE   := $(DIST_DIR)/libsm64.so
 LIB_H_FILE := $(DIST_DIR)/include/libsm64.h
+TEST_FILE  := run-test
 
 C_IMPORTED := src/mario/geo.inc.c src/mario/model.inc.c
 H_IMPORTED := $(C_IMPORTED:.c=.h)
@@ -19,6 +20,7 @@ IMPORTED   := $(C_IMPORTED) $(H_IMPORTED)
 C_FILES   := $(foreach dir,$(SRC_DIRS),$(wildcard $(dir)/*.c)) $(C_IMPORTED)
 O_FILES   := $(foreach file,$(C_FILES),$(BUILD_DIR)/$(file:.c=.o))
 DEP_FILES := $(O_FILES:.o=.d)
+TEST_OBJS := build/test/context.o build/test/level.o build/test/main.o
 
 DUMMY != mkdir -p src/mario
 DUMMY != mkdir -p $(ALL_DIRS)
@@ -28,19 +30,32 @@ $(filter-out src/mario/geo.inc.c,$(IMPORTED)): src/mario/geo.inc.c
 src/mario/geo.inc.c: ./import-mario-geo.py
 	./import-mario-geo.py
 
+test/level.c test/level.h: ./import-test-collision.py
+	./import-test-collision.py
+
+test/main.c: test/level.h
+
 $(BUILD_DIR)/%.o: %.c $(IMPORTED)
 	@$(CC) $(CFLAGS) -MM -MP -MT $@ -MF $(BUILD_DIR)/$*.d $<
 	$(CC) -c $(CFLAGS) -o $@ $<
 
-$(BIN_FILE): $(O_FILES)
+$(LIB_FILE): $(O_FILES)
 	$(CC) $(LDFLAGS) -o $@ $^
 
 $(LIB_H_FILE): src/libsm64.h
 	cp -f $< $@
 
-all: $(BIN_FILE) $(LIB_H_FILE)
+$(TEST_FILE): $(LIB_FILE) $(TEST_OBJS)
+	$(CC) -o $@ $(TEST_OBJS) $(LIB_FILE) -lGLEW -lGL -lSDL2 -lSDL2main -lm
+
+lib: $(LIB_FILE)
+
+test: $(TEST_FILE)
+
+run: test
+	./$(TEST_FILE)
 
 clean:
-	rm -rf $(BUILD_DIR) $(DIST_DIR) src/mario
+	rm -rf $(BUILD_DIR) $(DIST_DIR) src/mario test/level.?
 
 -include $(DEP_FILES)