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Viewing changes to src/level_logic.cpp

Committer: Bazaar Package Importer
Author(s): Dmitry E. Oboukhov
Date: 2010-07-21 16:21:45 UTC
Revision ID: james.westby@ubuntu.com-20100721162145-zid0u93fm3xz73gh

Tags: upstream-1.0+dfsg1

Import upstream version 1.0+dfsg1

files added:

INSTALL

LICENSE

Makefile

src/IMG_savepng.cpp

src/IMG_savepng.h

src/LICENSE

src/asserts.hpp

src/background.cpp

src/background.hpp

src/blur.cpp

src/blur.hpp

src/border_widget.cpp

src/border_widget.hpp

src/button.cpp

src/button.hpp

src/character_editor_dialog.cpp

src/character_editor_dialog.hpp

src/collision_utils.cpp

src/collision_utils.hpp

src/color_utils.cpp

src/color_utils.hpp

src/colorshift_hash_table.cpp

src/colorshift_hash_table.hpp

src/concurrent_cache.hpp

src/controls.cpp

src/controls.hpp

src/current_generator.cpp

src/current_generator.hpp

src/custom_object.cpp

src/custom_object.hpp

src/custom_object_callable.cpp

src/custom_object_callable.hpp

src/custom_object_functions.cpp

src/custom_object_functions.hpp

src/custom_object_type.cpp

src/custom_object_type.hpp

src/debug_console.cpp

src/debug_console.hpp

src/dialog.cpp

src/dialog.hpp

src/draw_number.cpp

src/draw_number.hpp

src/draw_scene.cpp

src/draw_scene.hpp

src/draw_tile.cpp

src/draw_tile.hpp

src/editor.cpp

src/editor.hpp

src/editor_dialogs.cpp

src/editor_dialogs.hpp

src/editor_formula_functions.cpp

src/editor_formula_functions.hpp

src/editor_layers_dialog.cpp

src/editor_layers_dialog.hpp

src/editor_level_properties_dialog.cpp

src/editor_level_properties_dialog.hpp

src/editor_stats_dialog.cpp

src/editor_stats_dialog.hpp

src/editor_variable_info.cpp

src/editor_variable_info.hpp

src/entity.cpp

src/entity.hpp

src/entity_fwd.hpp

src/filesystem.cpp

src/filesystem.hpp

src/font.cpp

src/font.hpp

src/foreach.hpp

src/formatter.hpp

src/formula.cpp

src/formula.hpp

src/formula_callable.hpp

src/formula_callable_definition.cpp

src/formula_callable_definition.hpp

src/formula_callable_definition_fwd.hpp

src/formula_callable_utils.hpp

src/formula_constants.cpp

src/formula_constants.hpp

src/formula_function.cpp

src/formula_function.hpp

src/formula_fwd.hpp

src/formula_profiler.cpp

src/formula_profiler.hpp

src/formula_test.cpp

src/formula_tokenizer.cpp

src/formula_tokenizer.hpp

src/formula_variable_storage.cpp

src/formula_variable_storage.hpp

src/frame.cpp

src/frame.hpp

src/framed_gui_element.cpp

src/framed_gui_element.hpp

src/functional.hpp

src/geometry.cpp

src/geometry.hpp

src/graphical_font.cpp

src/graphical_font.hpp

src/graphical_font_label.cpp

src/graphical_font_label.hpp

src/grid_widget.cpp

src/grid_widget.hpp

src/grid_widget_fwd.hpp

src/group_property_editor_dialog.cpp

src/group_property_editor_dialog.hpp

src/gui_formula_functions.cpp

src/gui_formula_functions.hpp

src/gui_section.cpp

src/gui_section.hpp

src/hi_res_timer.hpp

src/image_widget.cpp

src/image_widget.hpp

src/image_widget_fwd.hpp

src/input.cpp

src/input.hpp

src/inventory.cpp

src/inventory.hpp

src/iphone_controls.cpp

src/iphone_controls.hpp

src/iphone_device_info.h

src/iphone_device_info.m

src/iphone_sound.h

src/iphone_sound.m

src/joystick.cpp

src/joystick.hpp

src/key.cpp

src/key.hpp

src/label.cpp

src/label.hpp

src/level.cpp

src/level.hpp

src/level_logic.cpp

src/level_logic.hpp

src/level_object.cpp

src/level_object.hpp

src/level_runner.cpp

src/level_runner.hpp

src/level_solid_map.cpp

src/level_solid_map.hpp

src/load_level.cpp

src/load_level.hpp

src/load_level_nothread.cpp

src/loading_screen.cpp

src/loading_screen.hpp

src/main.cpp

src/map_utils.hpp

src/message_dialog.cpp

src/message_dialog.hpp

src/movement_script.cpp

src/movement_script.hpp

src/multi_tile_pattern.cpp

src/multi_tile_pattern.hpp

src/multiplayer.cpp

src/multiplayer.hpp

src/object_events.cpp

src/object_events.hpp

src/options_dialog.cpp

src/options_dialog.hpp

src/particle_system.cpp

src/particle_system.hpp

src/pause_game_dialog.cpp

src/pause_game_dialog.hpp

src/playable_custom_object.cpp

src/playable_custom_object.hpp

src/player_info.cpp

src/player_info.hpp

src/point_map.hpp

src/powerup.cpp

src/powerup.hpp

src/powerup_fwd.hpp

src/preferences.cpp

src/preferences.hpp

src/preprocessor.cpp

src/preprocessor.hpp

src/preview_tileset_widget.cpp

src/preview_tileset_widget.hpp

src/property_editor_dialog.cpp

src/property_editor_dialog.hpp

src/random.cpp

src/random.hpp

src/raster.cpp

src/raster.hpp

src/raster_distortion.cpp

src/raster_distortion.hpp

src/rectangle_rotator.cpp

src/rectangle_rotator.hpp

src/reference_counted_object.hpp

src/scoped_resource.hpp

src/server.cpp

src/settings_dialog.cpp

src/settings_dialog.hpp

src/simple_wml.cpp

src/simple_wml.hpp

src/solid_map.cpp

src/solid_map.hpp

src/solid_map_fwd.hpp

src/sound.cpp

src/sound.hpp

src/speech_dialog.cpp

src/speech_dialog.hpp

src/stats.cpp

src/stats.hpp

src/string_utils.cpp

src/string_utils.hpp

src/surface.cpp

src/surface.hpp

src/surface_cache.cpp

src/surface_cache.hpp

src/surface_formula.cpp

src/surface_formula.hpp

src/surface_palette.cpp

src/surface_palette.hpp

src/surface_scaling.cpp

src/text_entry_widget.cpp

src/text_entry_widget.hpp

src/texture.cpp

src/texture.hpp

src/thread.cpp

src/thread.hpp

src/tile_map.cpp

src/tile_map.hpp

src/tileset_editor_dialog.cpp

src/tileset_editor_dialog.hpp

src/tooltip.cpp

src/tooltip.hpp

src/translate.cpp

src/translate.hpp

src/unit_test.cpp

src/unit_test.hpp

src/userevents.h

src/utility_object_compiler.cpp

src/utility_object_editor.cpp

src/utils.cpp

src/utils.hpp

src/variant.cpp

src/variant.hpp

src/water.cpp

src/water.hpp

src/water_particle_system.cpp

src/water_particle_system.hpp

src/weather_particle_system.cpp

src/weather_particle_system.hpp

src/widget.cpp

src/widget.hpp

src/wml_formula_adapter.cpp

src/wml_formula_adapter.hpp

src/wml_formula_callable.cpp

src/wml_formula_callable.hpp

src/wml_modify.cpp

src/wml_modify.hpp

src/wml_node.cpp

src/wml_node.hpp

src/wml_node_fwd.hpp

src/wml_parser.cpp

src/wml_parser.hpp

src/wml_parser_test.cpp

src/wml_preprocessor.cpp

src/wml_preprocessor.hpp

src/wml_schema.cpp

src/wml_schema.hpp

src/wml_utils.cpp

src/wml_utils.hpp

src/wml_value.hpp

src/wml_writer.cpp

src/wml_writer.hpp

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added added

removed removed

src/level_logic.cpp

#include <cstdlib>

#include <limits.h>

#include "level.hpp"

#include "level_logic.hpp"

bool cliff_edge_within(const level& lvl, int xpos, int ypos, int deltax)

{

const int FeetWidth = 5;

return !lvl.standable(xpos + deltax, ypos) &&

!lvl.standable(xpos + deltax, ypos + std::abs(deltax) + FeetWidth);

}

int distance_to_cliff(const level& lvl, int xpos, int ypos, int facing)

{

const int max_search = 1000;

const int cliff_face = 5;

const int cliff_drop = 2;

bool found = false;

//search for up to three pixels below us to try to get a starting

//position which is standable.

for(int n = 0; n != 3; ++n) {

if(lvl.standable_tile(xpos, ypos)) {

found = true;

break;

}

++ypos;

}

if(!found) {

return max_search;

}

//make sure we are at the surface.

while(lvl.standable_tile(xpos, ypos-1)) {

--ypos;

}

int result = 0;

for(; result < max_search; xpos += facing, ++result) {

if(lvl.standable_tile(xpos, ypos) || lvl.standable_tile(xpos, ypos-1)) {

int ydiff = 0;

while(lvl.standable_tile(xpos, ypos-1) && ydiff < cliff_face) {

--ypos;

++ydiff;

}

if(ydiff == cliff_face) {

return max_search;

}

} else {

int ydiff = 0;

while(!lvl.standable_tile(xpos, ypos) && ydiff < cliff_drop) {

++ypos;

++ydiff;

}

if(ydiff == cliff_drop) {

return result;

}

return result;

}

int find_ground_level(const level& lvl, int xpos, int ypos, int max_search)

{

if(lvl.standable(xpos, ypos)) {

--ypos;

while(lvl.standable(xpos, ypos) && --max_search > 0) {

--ypos;

}

if(!max_search) {

return INT_MIN;

}

return ypos + 1;

} else {

//search both up and down, since in the case of a platform the

//ground may be above us.

for(int n = 1; n < max_search; ++n) {

if(lvl.standable(xpos, ypos + n)) {

return ypos + n - 1;

}

if(lvl.standable(xpos, ypos - n) && !lvl.standable(xpos, ypos - n - 1)) {

return ypos - n;

}

return INT_MIN;

}

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