Designing Games with Game Maker - YoYo Games

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e drawn using the draw_text() function. Can be used for precisely positioning graphics. string_height(string) Height of the string in the current font as it would be drawn using the draw_text() function. string_width_ext(string,sep,w) Width of the string in the current font as it would be drawn using the draw_text_ext() function. Can be used for precisely positioning graphics. string_height_ext(string,sep,w) Height of the string in the current font as it would be drawn using the draw_text_ext() function. The following routines allow you to draw scaled and rotated text and also to use gradient colors on texts. These functions are only available in the Pro Edition! draw_text_transformed(x,y,string,xscale,yscale,angle) Draws the string at position (x,y) in the same way as above, but scale it horizontally and vertically with the indicated factors and rotate it counter-clockwise over angle degrees. draw_text_ext_transformed(x,y,string,sep,w,xscale,yscale,an gle) Combines the function draw_text_ext and draw_text_transformed. It makes it possible to draw a multi-line text rotated and scaled. draw_text_color(x,y,string,c1,c2,c3,c4,alpha) Draws the string at position (x,y) like above. The four colors specify the colors of the top-left, top-right, bottom-right, and bottom-left corner of the text. alpha is the alpha transparency to be used (0-1). draw_text_ext_color(x,y,string,sep,w,c1,c2,c3,c4,alpha) Similar to draw_text_ext() but with colored vertices. draw_text_transformed_color(x,y,string,xscale,yscale,angle, c1,c2,c3,c4,alpha) Similar to draw_text_transformed() but with colored vertices. draw_text_ext_transformed_color(x,y,string,sep,w,xscale,ysc ale,angle,c1,c2,c3,c4,alpha) Similar to draw_text_ext_transformed() but with colored vertices. Advanced drawing functions
This functionality is only available in the Pro Edition of Game Maker. Above, a number of basic drawing functions have been described. Here you find a number of additional functions that offer you a lot more possibilities. First of all there are functions to draw shapes with gradient colors. Secondly there are functions to draw more general polygons, and finally there is the possibility to draw texture mapped polygons. The following extended versions of the basic drawing functions exist. each of them gets extra color parameters that are used the determine the color at different vertices. The standard drawing color is not used in these functions. draw_point_color(x,y,col1) Draws a point at (x,y) in the given color. draw_line_color(x1,y1,x2,y2,col1,col2) Draws a line from (x1,y1) to (x2,y2), interpolating the color between col1 and col2. draw_line_width_color(x1,y1,x2,y2,w,col1,col2) Draws a line from (x1,y1) to (x2,y2) with width w interpolating the color between col1 and col2. draw_rectangle_color(x1,y1,x2,y2,col1,col2,col3,col4,outlin e) Draws a rectangle. The four colors indicated the colors at the top-left, top- right, bottom-right, and bottom-left vertex. outline indicates whether only the outline must be drawn (true) or it should be filled (false). draw_roundrect_color(x1,y1,x2,y2,col1,col2,outline) Draws a rounded rectangle. col1 is the color in the middle and col2 the color at the boundary. outline indicates whether only the outline must be drawn (true) or it should be filled (false). draw_triangle_color(x1,y1,x2,y2,x3,y3,col1,col2,col3,outlin e) Draws a triangle. The three colors are the colors of the three vertices which is interpolated over the triangle. outline indicates whether only the outline must be drawn (true) or it should be filled (false). draw_circle_color(x,y,r,col1,col2,outline) Draws a circle at (x,y) with radius r. col1 is the color in the middle and col2 the color at the boundary. outline indicates whether only the outline must be drawn (true) or it should be filled (false). draw_ellipse_color(x1,y1,x2,y2,col1,col2,outline) Draws an ellipse. col1 is the color in the middle and col2 the color at the boundary. outline indicates whether only the outline must be drawn (true) or it should be filled (false).
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What is New Designing Games with Ga
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It can now be indicated whether or
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• You can now set the variable cu
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Playing computer games is fun. But
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Upgrading to the Pro Edition Game M
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http://www.yoyogames.com/upgrade He
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simple: There is a blue ball bounci
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(Actually, this is what you see whe
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Resources menu In this menu, you ca
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When you make a game you normally s
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To create a background resource in
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whether this is a solid object (lik
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Here you select the event you want
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the keys pressed happen. Note that
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Key release events This event is si
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Relative. If you check this, the ne
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object is reached. If there already
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Transform Sprite Use this action to
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Sleep With this action you can free
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Check Collision This is the reverse
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peferably only for small pieces of
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provide the positions and the capti
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to right. You specify the rectangle
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You can change most of these variab
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To add instances to the room, first
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At the top you will see the backgro
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When you start Game Maker in advanc
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• Show the origin and bounding bo
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Editing your sprites Up to now we l
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• Scale. This command scales the
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• Disappear. Makes the image disa
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Once you selected the correct set o
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• Clear. Clear the image to the l
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Multiple normal sounds can play at
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You can indicate a number of settin
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When a ball hits the floor it must
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action it lets the instance take a
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The following additional draw actio
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dies. The transparency slowly chang
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Resume CD Resumes a paused CD. Chec
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e the way you left it the last time
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At the left top there is the curren
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At the top there is a box labeled E
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Letters range that contains all upp
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top tool bar. Here you can also ind
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You might wonder what happens when
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Set the time line position With thi
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As you might have noticed, parts of
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In this form you can indicate which
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about the game and how it was creat
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Resolution In this tab you can set
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Also you can set the priority of th
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Change to change a selected file, D
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Here you can set a number of option
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Game Maker contains a built-in prog
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• !: not, turns true into false a
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} instance_create(xx,yy,ball); Addr
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} obj[1].id.x = 12; The last statem
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{ } repeat (5) instance_create(rand
Page 119 and 120: } for (i=0; i
Page 121 and 122: A function has the form of a functi
Page 123 and 124: with (ball) { } x = random(room_wid
Page 125 and 126: andom_set_seed(seed) Sets the seed
Page 127 and 128: string_copy(str,index,count) Return
Page 129 and 130: date_get_hour(date) Returns the hou
Page 131 and 132: Generating Events Miscellaneous Var
Page 133 and 134: Paths move_bounce_all(adv) Bounces
Page 135 and 136: e careful how and when you apply it
Page 137 and 138: overwritten by the new path. (See a
Page 139 and 140: mp_grid_add_instances(id,obj,prec)
Page 141 and 142: instance_count* Number of instances
Page 143 and 144: When you deactivate instances they
Page 145 and 146: As you should know, every instance
Page 147 and 148: loading. You can also save and load
Page 149 and 150: score The current score. lives Numb
Page 151 and 152: ev_joystick1_button7 ev_joystick1_b
Page 153 and 154: Here are some variables and functio
Page 155 and 156: There is no game without interactio
Page 157 and 158: vk_insert insert key vk_pageup page
Page 159 and 160: You can change the way the mouse cu
Page 161 and 162: image_index When the image has mult
Page 163 and 164: ackground_height[0...7]* Height of
Page 165 and 166: ,xscale,yscale,rot,c1,c2,c3,c4,alph
Page 167 and 168: ection,showback,showborder) With th
Page 169: Fonts and text In games you sometim
Page 173 and 174: sprite_get_texture(spr,subimg) Retu
Page 175 and 176: draw_set_blend_mode(mode) Indicates
Page 177 and 178: position (x,y) in the surface. This
Page 179 and 180: change their position, and even sca
Page 181 and 182: indicated depth to the new depth. W
Page 183 and 184: window_set_sizeable(sizeable) Sets
Page 185 and 186: window_default() Gives the window t
Page 187 and 188: can also assign an instance id to t
Page 189 and 190: Be careful when using this techniqu
Page 191 and 192: sound_volume(index,value) Changes t
Page 193 and 194: wave Waveform of the LFO. (0 = tria
Page 195 and 196: accordingly. The effect is especial
Page 197 and 198: MCI_command(str) This functions sen
Page 199 and 200: e adapted to the scaled size of the
Page 201 and 202: message_caption(show,str) Sets the
Page 203 and 204: place (1-10). This can be used to d
Page 205 and 206: sound_discard(index) Frees the audi
Page 207 and 208: script_exists(ind) Returns whether
Page 209 and 210: • Make sure you delete resources
Page 211 and 212: sprite_add_from_surface(ind,id,x,y,
Page 213 and 214: does not matter. background_create_
Page 215 and 216: Scripts an empty path. path_reverse
Page 217 and 218: ehavior we must define events for t
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fa_directory directories fa_archive
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using the file selector. Note that
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To pass certain parameter settings
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All data structures work globally i
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Lists ds_queue_size(id) Returns the
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ds_map_create() Creates a new map.
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Grids an easy mechanism for saving
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ds_grid_get_mean(id,x1,y1,x2,y2) Re
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• ef_smokeup • ef_star • ef_s
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at the beginning of the animation o
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Besides the color you can also give
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front of, or between object instanc
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• distribution indicates the dist
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settings. part_attractor_position(p
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Changers change certain particles w
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part_type_gravity(pt2,0.2,270); par
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mplay_connect_status() returns the
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calling the first routine. This id
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This functionality is only availabl
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ty_real,2,ty_real,ty_real); global.
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• When you use the 3D functionali
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Note that at the moment a new insta
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} ttt = background_get_texture(back
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Default you look along the negative
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A standard use for this is to draw
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{ } d3d_transform_set_identity(); d
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d3d_light_define_direction(ind,dx,d
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pr_trianglefan. d3d_model_vertex(in
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Designing Games with Game Maker - YoYo Games

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