added rotate to editor. fixed so that the game handles envelopes

3 files changed, 55 insertions, 0 deletions

diff --git a/src/game/editor/ed_editor.cpp b/src/game/editor/ed_editor.cpp
index 5e530ea8..3d1b5320 100644
--- a/src/game/editor/ed_editor.cpp
+++ b/src/game/editor/ed_editor.cpp
@@ -430,6 +430,30 @@ static void do_toolbar(RECT toolbar)
 			for(int i = 0; i < brush.layers.len(); i++)
 				brush.layers[i]->brush_flip_y();
 		}
+
+		// rotate buttons
+		ui_vsplit_l(&toolbar, 20.0f, &button, &toolbar);
+		
+		ui_vsplit_l(&toolbar, 30.0f, &button, &toolbar);
+		static int rotation_amount = 90;
+		rotation_amount = ui_do_value_selector(&rotation_amount, &button, "", rotation_amount, 1, 360, 2.0f);
+		
+		ui_vsplit_l(&toolbar, 5.0f, &button, &toolbar);
+		ui_vsplit_l(&toolbar, 30.0f, &button, &toolbar);
+		static int ccw_button = 0;
+		if(do_editor_button(&ccw_button, "CCW", enabled, &button, draw_editor_button_l, 0, "[R] Rotates the brush counter clockwise") || inp_key_down('R'))
+		{
+			for(int i = 0; i < brush.layers.len(); i++)
+				brush.layers[i]->brush_rotate(-rotation_amount/360.0f*pi*2);
+		}
+			
+		ui_vsplit_l(&toolbar, 30.0f, &button, &toolbar);
+		static int cw_button = 0;
+		if(do_editor_button(&cw_button, "CW", enabled, &button, draw_editor_button_r, 0, "[T] Rotates the brush clockwise") || inp_key_down('T'))
+		{
+			for(int i = 0; i < brush.layers.len(); i++)
+				brush.layers[i]->brush_rotate(rotation_amount/360.0f*pi*2);
+		}
 	}
 
 	// quad manipulation
diff --git a/src/game/editor/ed_editor.hpp b/src/game/editor/ed_editor.hpp
index 2bbc4e08..cddc9c92 100644
--- a/src/game/editor/ed_editor.hpp
+++ b/src/game/editor/ed_editor.hpp
@@ -147,6 +147,7 @@ public:
 	virtual void brush_place(LAYER *brush, float x, float y) {}
 	virtual void brush_flip_x() {}
 	virtual void brush_flip_y() {}
+	virtual void brush_rotate(float amount) {}
 	
 	virtual void render() {}
 	virtual int render_properties(RECT *toolbox) { return 0; }
@@ -450,6 +451,7 @@ public:
 	virtual void brush_place(LAYER *brush, float wx, float wy);
 	virtual void brush_flip_x();
 	virtual void brush_flip_y();
+	virtual void brush_rotate(float amount);
 	
 	virtual int render_properties(RECT *toolbox);
 
diff --git a/src/game/editor/ed_layer_quads.cpp b/src/game/editor/ed_layer_quads.cpp
index 316d2e1f..da7e70b8 100644
--- a/src/game/editor/ed_layer_quads.cpp
+++ b/src/game/editor/ed_layer_quads.cpp
@@ -157,6 +157,35 @@ void LAYER_QUADS::brush_flip_y()
 {
 }
 
+void rotate(vec2 *center, vec2 *point, float rotation)
+{
+	float x = point->x - center->x;
+	float y = point->y - center->y;
+	point->x = x * cosf(rotation) - y * sinf(rotation) + center->x;
+	point->y = x * sinf(rotation) + y * cosf(rotation) + center->y;
+}
+
+void LAYER_QUADS::brush_rotate(float amount)
+{
+	vec2 center;
+	get_size(&center.x, &center.y);
+	center.x /= 2;
+	center.y /= 2;
+
+	for(int i = 0; i < quads.len(); i++)
+	{
+		QUAD *q = &quads[i];
+		
+		for(int p = 0; p < 5; p++)
+		{
+			vec2 pos(fx2f(q->points[p].x), fx2f(q->points[p].y));
+			rotate(&center, &pos, amount);
+			q->points[p].x = f2fx(pos.x);
+			q->points[p].y = f2fx(pos.y);
+		}
+	}
+}
+
 void LAYER_QUADS::get_size(float *w, float *h)
 {
 	*w = 0; *h = 0;